Protocol Registries

Protocol parameter registries represent the authoritative record of many of the codes and numbers contained in a variety of Internet protocols. We maintain these records in compliance with the associated technical standards and allocation policies, and we provide this service in coordination with the Internet Engineering Task Force (IETF).

To view or download individual protocol registries, navigate to the individual registries through the index below. Registry data is available for bulk retrieval via Rsync (recommended) or FTP.

To obtain a registration in an existing registry, or to modify existing registrations, consult the relevant application form. For information on creating new registries, please see RFC 8126 for guidance.

A B C D E F G H I J K L M N O P Q R S T U V W X Y
Protocol/Registry Defining Document/Comments
A
Access Node Control Protocol (ANCP)
ANCP Capability Types RFC 6320
Standards Action
ANCP Command Codes RFC 6320
Standards Action
ANCP Message Types RFC 6320
Standards Action
ANCP Port Management Functions RFC 6320
Standards Action
ANCP Result Codes RFC 6320
0x0-0xFFF: IETF Review.
0x1000-0xFFFFFF: Specification Required.
(Expert: Unassigned)
ANCP Technology Types RFC 6320
Expert Review (Expert: Unassigned)
ANCP TLV Types RFC 6320
0x0000-0x1FFF: IETF Review.
0x2000-0xFFFF: Specification Required.
(Expert: Unassigned)
Joint GSMP / ANCP Version Registry RFC 6320
Standards Action
ACL TLS
ACL (D)TLS Parameters Internet Draft draft-ietf-opsawg-mud-tls-18
Expert Review (Expert: Unassigned)
ACL DTLS Version Codes Internet Draft draft-ietf-opsawg-mud-tls-18
Expert Review (Expert: Unassigned)
ACL TLS Version Codes Internet Draft draft-ietf-opsawg-mud-tls-18
Expert Review (Expert: Unassigned)
Ad Hoc On Demand Distance Vector (AODV) Parameters
AODV Extension Types RFC 3561
Standards Action
AODV Message Types (for messages sent to port 654) RFC 3561
Standards Action
Address Family Numbers
Address Family Numbers RFC 2453, RFC 2677, RFC 2858
1-16383: Standards Action.
16384-32767: First Come First Served.
Address Resolution Protocol (ARP) Parameters
Hardware Types RFC 826, RFC 5494
requests for values below 256: Expert Review.
requests for more than one value: Expert Review.
requests for one value greater than 255: First Come First Served.
requests for one value, no value specified: First Come First Served.
(Expert: Carlos Pignataro)
Operation Codes RFC 826, RFC 5494
IETF Review or IESG Approval
Protocol Type RFC 826, RFC 5494, RFC 5342
The Ethertype space is administered as described in [RFC5342].
APEX Parameters
Applicable Exchange Core (APEX) Endpoint Applications RFC 3340
Expert Review (Expert: Unassigned)
Applicable Exchange Core (APEX) Options RFC 3340
Expert Review (Expert: Unassigned)
Applicable Exchange Core (APEX) Services RFC 3340
Expert Review (Expert: Unassigned)
Application Access Protocol (ACAP) Numbers
ACAP Capabilities RFC 2244
Specification Required (Expert: Unassigned)
ACAP Response Codes RFC 2244
First Come First Served
Dataset Classes RFC 2244
Standards Action or IESG-Approved Experimental RFC
Vendor Subtrees RFC 2244, RFC 6075
First Come First Served
Application Bridging for Federated Access Beyond Web (ABFAB) Parameters
ABFAB URN Parameters RFC 7833
IETF Review or Expert Review (Expert: Unassigned)
Application-Layer Traffic Optimization (ALTO) Protocol
ALTO Address Types RFC 7285
IETF Review
ALTO Cost Metrics RFC 7285
IETF Review
ALTO Cost Modes RFC 9274
IETF Review
ALTO Cost Source Types RFC 9439
IETF Review
ALTO Endpoint Property Types RFC 7285
IETF Review
ALTO Entity Domain Types RFC 9240
IETF Review
ALTO Entity Property Types RFC 9240
IETF Review
ALTO Error Codes RFC 7285
IETF Review
Authenticated Encryption with Associated Data (AEAD) Parameters
AEAD Algorithms RFC 5116
1-32767: Specification Required.
32768-65535: Private Use.
(Expert: David McGrew, Bjoern Tackmann, Stanislav Smyshlyaev)
Authentication and Authorization for Constrained Environments (ACE)
ACE Authorization Server Request Creation Hints RFC 9200
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
(Expert: Göran Selander, Cigdem Sengul)
ACE Groupcomm Errors RFC 9594
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
(Expert: Francesca Palombini, Marco Tiloca, Rikard Höglund)
ACE Groupcomm Key Types RFC 9594
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
Strings of length 1: Standards Action With Expert Review.
Strings of length 2: Specification Required.
Strings of length greater than 2: Expert Review.
(Expert: Francesca Palombini, Marco Tiloca, Rikard Höglund)
ACE Groupcomm Parameters RFC 9594
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
Strings of length 1: Standards Action With Expert Review.
Strings of length 2: Specification Required.
Strings of length greater than 2: Expert Review.
(Expert: Francesca Palombini, Marco Tiloca, Rikard Höglund)
ACE Groupcomm Policies RFC 9594
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
Strings of length 1: Standards Action With Expert Review.
Strings of length 2: Specification Required.
Strings of length greater than 2: Expert Review.
(Expert: Francesca Palombini, Marco Tiloca, Rikard Höglund)
ACE Groupcomm Profiles RFC 9594
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
(Expert: Francesca Palombini, Marco Tiloca, Rikard Höglund)
ACE Groupcomm Rekeying Schemes RFC 9594
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
(Expert: Francesca Palombini, Marco Tiloca, Rikard Höglund)
ACE Profiles RFC 9200
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
(Expert: Göran Selander, Cigdem Sengul)
ACE Token Revocation List Errors Internet Draft draft-ietf-ace-revoked-token-notification-09
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
(Expert: Unassigned)
ACE Token Revocation List Parameters Internet Draft draft-ietf-ace-revoked-token-notification-09
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
(Expert: Unassigned)
OAuth Access Token Type CBOR Mappings RFC 9200
less than -65536: Private Use.
-65536 or greater: Expert Review.
(Expert: Göran Selander, Cigdem Sengul)
OAuth Error Code CBOR Mappings RFC 9200
less than -65536: Private Use.
-65536 or greater: Expert Review.
(Expert: Göran Selander, Cigdem Sengul)
OAuth Grant Type CBOR Mappings RFC 9200
less than -65536: Private Use.
-65536 or greater: Expert Review.
(Expert: Göran Selander, Cigdem Sengul)
OAuth Parameters CBOR Mappings RFC 9200
less than -65536: Private Use.
-65536 or greater: Expert Review.
(Expert: Göran Selander, Cigdem Sengul)
OAuth Token Introspection Response CBOR Mappings RFC 9200
less than -65536: Private Use.
-65536 or greater: Expert Review.
(Expert: Göran Selander, Cigdem Sengul)
OSCORE Security Context Parameters RFC 9203
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
Strings of length 1: Standards Action With Expert Review.
Strings of length 2: Specification Required.
Strings of length greater than 2: Expert Review.
(Expert: Göran Selander, Cigdem Sengul)
Sequence Number Synchronization Methods RFC 9594
less than -65536: Private Use.
-65536 to -257: Specification Required.
-256 to 255: Standards Action With Expert Review.
256 to 65535: Specification Required.
greater than 65535: Expert Review.
Strings of length 1: Standards Action With Expert Review.
Strings of length 2: Specification Required.
Strings of length greater than 2: Expert Review.
(Expert: Francesca Palombini, Marco Tiloca, Rikard Höglund)
Authentication and Key Agreement (AKA)
AKA-Version Namespace RFC 3310
Expert Review (Expert: Vesa Torvinen (primary), Jari Arkko (secondary))
Authentication Method Reference Values
Authentication Method Reference Values RFC 8176
Expert Review (Expert: John Bradley, Mike Jones)
Authentication Option Name Spaces
Algorithm Name Space Values RFC 3118
IETF Review
Protocol Name Space Values RFC 3118
IETF Review
RDM Name Space Values RFC 3118
IETF Review
Authentication, Authorization, and Accounting (AAA) Parameters
Application IDs RFC 6733, RFC 6942
0-16777215: Specification Required.
16777216-4294967294: First Come First Served.
(Expert: Unassigned)
AVP Codes RFC 6733
block allocation (release of more than three AVPs at a time for a given purpose): IETF Review.
other allocation: Specification Required.
(Expert: Lionel Morand (primary), Jouni Korhonen (secondary))
AVP Flags Value RFC 6733
Standards Action
AVP Specific Values RFC 6733
IETF Review (unless otherwise specified)
Command Codes RFC 6733, RFC 5719
0-255: Reserved for RADIUS backward compatibility.
256-8388607: IETF Review.
8388608-16777213: First Come First Served with specification.
Command Flags RFC 6733
Standards Action
Mobility Capability Registry RFC 5447
Specification Required (Expert: Jouni Korhonen)
QoS Profiles RFC 5624
0-511: Standards Action.
512-32767: Specification Required.
32768-429496729: Reserved.
(Expert: Unassigned)
Author Domain Signing Practices (ADSP) Parameters
ADSP Outbound Signing Practices RFC 5617
Registry closed
ADSP Specification Tags RFC 5617
Registry closed
Automated Certificate Management Environment (ACME) Protocol
ACME Account Object Fields RFC 8555
Specification Required (Expert: Richard Barnes)
ACME Authority Token Challenge Types RFC 9447
Specification Required (Expert: Mary Barnes)
ACME Authorization Object Fields RFC 8555
Specification Required (Expert: Richard Barnes)
ACME Directory Metadata Auto-Renewal Fields RFC 8739
Specification Required (Expert: Yaron Sheffer, Diego R. Lopez, Thomas Fossati)
ACME Directory Metadata Fields RFC 8555
Specification Required (Expert: Richard Barnes)
ACME Error Types RFC 8555
Specification Required (Expert: Richard Barnes)
ACME Identifier Types RFC 8555
Specification Required (Expert: Richard Barnes)
ACME Order Auto-Renewal Fields RFC 8739
Specification Required (Expert: Yaron Sheffer, Diego R. Lopez, Thomas Fossati)
ACME Order Object Fields RFC 8555
Specification Required (Expert: Richard Barnes)
ACME Resource Types RFC 8555
Specification Required (Expert: Richard Barnes)
ACME Validation Methods RFC 8555
Specification Required (Expert: Richard Barnes)
STAR Delegation CSR Template Extensions RFC 9115
Specification Required (Expert: Yaron Sheffer, Diego R. Lopez, Thomas Fossati)
Automatic Responses to Electronic Mail Parameters
Auto-Submitted Header Field Keywords RFC 5436
Specification Required (Expert: Unassigned)
Auto-Submitted header field optional parameters RFC 3834
IETF Review
Autonomic Control Plane (ACP)
ACP Address Type RFC 8994
Standards Action
Autonomous System (AS) Numbers
16-bit Autonomous System Numbers RFC 1930, RFC 5398, RFC 6996, RFC 7249
RIR request to the IANA or IETF Review. Allocated following the Global Policy published at http://www.icann.org/en/resources/policy/global-addressing.
32-bit Autonomous System Numbers RFC 1930, RFC 5398, RFC 6793, RFC 6996, RFC 7249
RIR request to the IANA or IETF Review. Allocated following the Global Policy published at http://www.icann.org/en/resources/policy/global-addressing.
Special-Purpose AS Numbers RFC 7249
IETF Review
B
Babel Routing Protocol
Babel Address Encodings RFC 8966
0-223: Specification Required.
224-254: Experimental Use.
(Expert: Juliusz Chroboczek, Donald Eastlake)
Babel Hello Flags Values RFC 8966
Specification Required (Expert: Juliusz Chroboczek, Donald Eastlake)
Babel Sub-TLV Types RFC 8966
0-111: Specification Required.
112-126: Experimental Use.
128-239: Specification Required.
240-254: Experimental Use.
(Expert: Juliusz Chroboczek, Donald Eastlake)
Babel TLV Types RFC 8966
0-223: Specification Required.
224-254: Experimental Use.
(Expert: Juliusz Chroboczek, Donald Eastlake)
Babel Update Flags Values RFC 8966
Specification Required (Expert: Juliusz Chroboczek, Donald Eastlake)
Battery Technologies
Battery Technologies RFC 7577
Expert Review (Expert: Unassigned)
BGP Monitoring Protocol (BMP) Parameters
BMP Initiation Information TLVs RFC 7854, RFC 9069, RFC 9515, Internet Draft draft-ietf-grow-bmp-peer-up-05
0-32767: Standards Action.
32768-65530: First Come First Served.
65531-65534: Experimental Use.
BMP Message Types RFC 7854
0-127: Standards Action.
128-250: Specification Required.
251-254: Experimental Use.
(Expert: John G. Scudder, Rex Fernando (rex), Paolo Lucente)
BMP Peer Down Reason Codes RFC 7854
0-127: Standards Action.
128-250: Specification Required.
251-254: Experimental Use.
(Expert: John G. Scudder, Rex Fernando (rex), Paolo Lucente)
BMP Peer Flags for Loc-RIB Instance Peer Type 3 RFC 9069
Standards Action
BMP Peer Flags for Peer Types 0 through 2 RFC 7854, RFC 9069
Standards Action
BMP Peer Types RFC 7854
0-127: Standards Action.
128-250: Specification Required.
251-254: Experimental Use.
(Expert: John G. Scudder, Rex Fernando (rex), Paolo Lucente)
BMP Peer Up Message TLVs Internet Draft draft-ietf-grow-bmp-peer-up-05
0, 3-32767: Standards Action.
32768-65530: First Come First Served.
65531-65534: Experimental Use.
BMP Route Mirroring Information Codes RFC 7854, RFC 9515
0-32767: Standards Action.
32768-65530: First Come First Served.
65531-65534: Experimental Use.
BMP Route Mirroring TLVs RFC 7854, RFC 9515
0-32767: Standards Action.
32768-65530: First Come First Served.
65531-65534: Experimental Use.
BMP Statistics Types RFC 7854, RFC 9515
0-32767: Standards Action.
32768-65530: First Come First Served.
65531-65534: Experimental Use.
BMP Termination Message Reason Codes RFC 7854, RFC 9515
0-32767: Standards Action.
32768-65530: First Come First Served.
65531-65534: Experimental Use.
BMP Termination Message TLVs RFC 7854, RFC 9515
0-32767: Standards Action.
32768-65530: First Come First Served.
65531-65534: Experimental Use.
Bidirectional Forwarding Detection (BFD) Parameters
BFD Authentication Types RFC 5880
Expert Review (Expert: Dave Ward (backup experts: Dave Katz, Jeff Haas, Les Ginsberg))
BFD Diagnostic Codes RFC 5880
Expert Review (Expert: Dave Ward (backup experts: Dave Katz, Jeff Haas, Les Ginsberg))
Bit Index Explicit Replication (BIER)
BIER Algorithm RFC 8401, RFC 9272
0-127: Standards Action.
128-239: Specification Required.
240-254: Private or Experimental Use.
(Expert: Les Ginsberg, Chris Hopps)
BIER Next Protocol Identifiers RFC 8296
IETF Review
Blocks Extensible Exchange Protocol (BEEP) Parameters
BEEP Features RFC 3080
Expert Review (Expert: Marshall T. Rose)
BEEP Profiles RFC 3080
Expert Review (Expert: Marshall T. Rose)
Bootstrapping Remote Secure Key Infrastructures (BRSKI) Parameters
BRSKI Well-Known URIs RFC 8995
Specification Required (Expert: Michael Richardson, Toerless Eckert)
Pledge BRSKI Status Telemetry Attributes RFC 8995
Specification Required (Expert: Michael Richardson)
Border Gateway Protocol (BGP) Parameters
Additional PMSI Tunnel Attribute Flags RFC 7902
Standards Action
ARP/ND Extended Community Flags RFC 9047
Standards Action
BFD Discriminator Optional TLV Type RFC 9026
0-175: IETF Review.
176-249: First Come First Served.
250-254: Experimental Use.
255: IETF Review.
BFD Mode RFC 9026
0-175: IETF Review.
176-249: First Come First Served.
250-254: Experimental Use.
255: IETF Review.
BGP AIGP Attribute Types RFC 7311
Standards Action
BGP Data Collection Standard Communities RFC 4384
IETF Review
BGP Error (Notification) Codes RFC 4271, RFC 7313
Standards Action
BGP Error Subcodes RFC 4271
Standards Action
BGP Graceful Restart Flags RFC 4724, RFC 8538
Standards Action
BGP Graceful Restart Flags for Address Family RFC 4724, RFC 8538
Standards Action
BGP Layer 2 Encapsulation Types RFC 6624
0-127: Expert Review.
128-251: First Come First Served.
252-255: Experimental Use.
BGP Layer 2 TLV Types RFC 6624
0-127: Expert Review.
128-251: First Come First Served.
252-255: Experimental Use.
BGP MCAST-VPN Route Types RFC 7441, RFC 6514
Standards Action
BGP Message Types RFC 4271
Standards Action
BGP Non-Transitive Extended Community Types RFC 7153
0x40-0x7f: First Come First Served.
0xc0-0xcf: Reserved for Experimental Use.
0xd0-0xff: Standards Action.
BGP OPEN Optional Parameter Types RFC 5492
IETF Review
BGP Outbound Route Filtering (ORF) Types RFC 5291
0-63: Standards Action.
64-127: First Come First Served.
128-255: Vendor-Specific.
BGP Path Attributes RFC 4271
Standards Action
BGP Prefix-SID Label-Index TLV Flags RFC 8669
Expert Review (Expert: Acee Lindem, Hannes Gredler)
BGP Prefix-SID Originator SRGB TLV Flags RFC 8669
Expert Review (Expert: Acee Lindem, Hannes Gredler)
BGP Prefix-SID TLV Types RFC 8669
Expert Review (Expert: Acee Lindem, Hannes Gredler)
BGP Role Value RFC 9234
IETF Review
BGP Route Refresh Subcodes RFC 7313
0-127: Standards Action.
128-254: First Come First Served.
BGP SRv6 Service SID Flags RFC 9252
IETF Review
BGP Transitive Extended Community Types RFC 7153, RFC 9184
0x00-0x3f: First Come First Served.
0x80-0x82: First Come First Served.
0x83-0x8f: Reserved for Experimental Use.
0x90-0xbf: Standards Action.
BGP Well-known Communities RFC 1997, RFC 8642
0x00000000-0x0000FFFF: Reserved.
0x00010000-0xFFFEFFFF: Private Use.
0xFFFF0000-0xFFFF8000: First Come First Served.
0xFFFF8001-0xFFFFFFFF: Standards Action.
Capability Codes RFC 5492, RFC 8810
1-63: IETF Review.
64-238: First Come First Served.
239-254: Experimental Use.
Context-Specific Label Space ID Type RFC 9573
First Come First Served
DF Alg RFC 8584
RFC Required
DF Election Capabilities RFC 8584
RFC Required
E-Tree Flags RFC 8317
RFC Required
EVPN ESI Label Extended Community Flags Internet Draft draft-ietf-bess-evpn-mh-split-horizon-11
IETF Review
EVPN Extended Community Sub-Types RFC 7153
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
EVPN Layer 2 Attributes Control Flags RFC 8214
RFC Required
Generic Transitive Extended Community Part 2 Sub-Types RFC 8955, RFC 9184
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Generic Transitive Extended Community Part 3 Sub-Types RFC 8955, RFC 9184
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Generic Transitive Extended Community Sub-Types RFC 7153, RFC 9184
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Layer2 Info Extended Community Control Flags Bit Vector RFC 8395
IETF Review
Long-Lived Graceful Restart Flags for Address Family RFC 9494
Standards Action
Multicast Flags Extended Community RFC 9251
First Come First Served
Multihoming Redundancy Mode Internet Draft draft-ietf-bess-evpn-mh-split-horizon-11
IETF Review
Non-Transitive Four-Octet AS-Specific Extended Community Sub-Types RFC 7153
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Non-Transitive IPv4-Address-Specific Extended Community Sub-Types RFC 7153
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Non-Transitive IPv6-Address-Specific Extended Community Types RFC 7153
First Come First Served
Non-Transitive Opaque Extended Community Sub-Types RFC 7153
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Non-Transitive Two-Octet AS-Specific Extended Community Sub-Types RFC 7153
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
P-Multicast Service Interface (PMSI) Tunnel Attribute Flags RFC 7902
Standards Action
P-Multicast Service Interface Tunnel (PMSI Tunnel) Tunnel Types RFC 7385, RFC 8317
0x00-0x7A: IETF Review.
0x7B-0x7E: Experimental Use.
0x80-0xFA: Composite Tunnel.
0xFB-0xFE: Experimental Use.
0xFF: Standards Action.
Region Identifiers (<R>) RFC 4384
Not defined
SFC Extended Community Sub-Types RFC 9015
First Come First Served
SFC SPI/SI Representation Flags RFC 9015
Standards Action
SFP Association Type RFC 9015
First Come First Served
SFP Attribute TLVs RFC 9015
First Come First Served
Split Horizon Type Internet Draft draft-ietf-bess-evpn-mh-split-horizon-11
IETF Review
SRv6 Service Data Sub-Sub-TLV Types RFC 9252
0-127: IETF Review.
128-254: First Come First Served.
255: IETF Review.
SRv6 Service Sub-TLV Types RFC 9252
0-127: IETF Review.
128-254: First Come First Served.
255: IETF Review.
Traffic Action Fields RFC 8955
IETF Review
Transitive Four-Octet AS-Specific Extended Community Sub-Types RFC 7153
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Transitive IPv4-Address-Specific Extended Community Sub-Types RFC 7153
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Transitive IPv6-Address-Specific Extended Community Types RFC 7153
First Come First Served
Transitive Opaque Extended Community Sub-Types RFC 7153
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Transitive Two-Octet AS-Specific Extended Community Sub-Types RFC 7153
0x00-0xbf: First Come First Served.
0xc0-0xff: IETF Review.
Border Gateway Protocol (BGP) Tunnel Encapsulation
BGP Tunnel Encapsulation Attribute Sub-TLVs RFC 9012
1-63: Standards Action.
64-125: First Come First Served.
126-127: Experimental Use.
128-191: Standards Action.
192-252: First Come First Served.
253-254: Experimental Use.
BGP Tunnel Encapsulation Attribute Tunnel Types RFC 9012
First Come First Served
Color Extended Community Flags RFC 9012
Standards Action
Embedded Label Handling Sub-TLVs RFC 9012
Standards Action
Flags Field of NVGRE Encapsulation Sub-TLVs RFC 9012
Standards Action
Flags Field of VXLAN Encapsulation Sub-TLVs RFC 9012
Standards Action
Border Gateway Protocol - Link State (BGP-LS) Parameters
BGP-LS IGP Prefix Flags RFC 9552
Expert Review (Expert: Adrian Farrel, Hannes Gredler)
BGP-LS MPLS Protocol Mask RFC 9552
Expert Review (Expert: Adrian Farrel, Hannes Gredler)
BGP-LS NLRI and Attribute TLVs RFC 9552
0-255: Reserved (not to be allocated).
256-64999: Expert Review.
65000-65535: Private Use.
(Expert: Hannes Gredler (primary), Adrian Farrel (secondary))
BGP-LS NLRI Types RFC 9552
1-64999: Expert Review.
65000-65535: Private Use.
(Expert: Hannes Gredler (primary), Adrian Farrel (secondary))
BGP-LS Node Flags RFC 9552
Expert Review (Expert: Adrian Farrel, Hannes Gredler)
BGP-LS Protocol-IDs RFC 9552
1-199: Expert Review.
200-255: Private Use.
(Expert: Hannes Gredler (primary), Adrian Farrel (secondary))
BGP-LS Well-Known Instance-IDs (OBSOLETE) RFC 9552
Registry closed
SRv6 BGP EPE SID Flags RFC 9514
Standards Action
BPF Instructions
BPF Instruction Conformance Groups Internet Draft draft-ietf-bpf-isa-04
Permanent: Standards Action or IESG Approval.
Provisional: Specification Required.
Historical: Specification Required.
(Expert: Unassigned)
BPF Instruction Set Internet Draft draft-ietf-bpf-isa-04
Permanent: Standards Action or IESG Approval.
Provisional: Specification Required.
Historical: Specification Required.
(Expert: Unassigned)
Building Blocks
Building Blocks RFC 3048
Specification Required (Expert: Unassigned)
Bundle Protocol
Block Processing Control Flags RFC 6255, RFC 9171
Specification Required (Expert: Scott Burleigh, Fred Templin)
BPSec BCB-AES-GCM AAD Scope Flags RFC 9173
Specification Required (Expert: Ken McKeever, Edward Birrane)
BPSec BIB-HMAC-SHA2 Integrity Scope Flags RFC 9173
Specification Required (Expert: Ken McKeever, Edward Birrane)
BPSec Security Context Identifiers RFC 9172
Specification Required (Expert: Ken McKeever, Edward Birrane)
Bundle Administrative Record Types RFC 7116, Internet Draft draft-ietf-dtn-bpv7-admin-iana-04
Specification Required (Expert: Marc Blanchet, Keith Scott)
Bundle Block Types RFC 6255, RFC 9171
Specification Required (Expert: Scott Burleigh, Fred Templin)
Bundle Custody Signal Reason Codes RFC 6255
Specification Required (Expert: Scott Burleigh, Fred Templin)
Bundle Metadata Type Codes RFC 6258
Specification Required (Expert: Rick Taylor)
Bundle Processing Control Flags RFC 6255, RFC 9171
Specification Required (Expert: Scott Burleigh, Fred Templin)
Bundle Protocol TCP Convergence-Layer Message Types RFC 7242
RFC Required
Bundle Protocol TCP Convergence-Layer REFUSE_BUNDLE Reason Codes RFC 7242
RFC Required
Bundle Protocol TCP Convergence-Layer SHUTDOWN Reason Codes RFC 7242
RFC Required
Bundle Protocol TCP Convergence-Layer Version 4 Message Types RFC 9174
RFC Required
Bundle Protocol TCP Convergence-Layer Version 4 MSG_REJECT Reason Codes RFC 9174
Specification Required (Expert: Brian Sipos, Rick Taylor)
Bundle Protocol TCP Convergence-Layer Version 4 SESS_TERM Reason Codes RFC 9174
Specification Required (Expert: Brian Sipos, Rick Taylor)
Bundle Protocol TCP Convergence-Layer Version 4 Session Extension Types RFC 9174
Expert Review (Expert: Brian Sipos, Rick Taylor)
Bundle Protocol TCP Convergence-Layer Version 4 Transfer Extension Types RFC 9174
Expert Review (Expert: Brian Sipos, Rick Taylor)
Bundle Protocol TCP Convergence-Layer Version 4 XFER_REFUSE Reason Codes RFC 9174
Specification Required (Expert: Brian Sipos, Rick Taylor)
Bundle Protocol TCP Convergence-Layer Version Numbers RFC 7242
RFC Required
Bundle Protocol URI Scheme Types RFC 9171
Standards Action
Bundle Status Report Flags RFC 6255
RFC Required
Bundle Status Report Reason Codes RFC 6255, RFC 9171
Specification Required (Expert: Scott Burleigh, Fred Templin)
CBHE Service Numbers RFC 7116
0-63: Specification Required.
1024-65535: Specification Required.
(Expert: Marc Blanchet, Keith Scott)
Ciphersuite Flags RFC 6257
Specification Required (Expert: Stephen Farrell, Edward Birrane)
Ciphersuite Numbers RFC 6257
Specification Required (Expert: Stephen Farrell, Edward Birrane)
Ciphersuite Parameters and Results Type Registry RFC 6257
Specification Required (Expert: Stephen Farrell, Edward Birrane)
Primary Bundle Protocol Version RFC 6255
RFC Required
C
C-DNS DNS Capture Format
C-DNS Address Event Types RFC 8618
Expert Review (Expert: Jim Hague, Sara Dickinson, John Dickinson)
C-DNS Response Flags RFC 8618
Expert Review (Expert: Jim Hague, Sara Dickinson, John Dickinson)
C-DNS Storage Flags RFC 8618
Expert Review (Expert: Jim Hague, Sara Dickinson, John Dickinson)
C-DNS Transports RFC 8618
Expert Review (Expert: Jim Hague, Sara Dickinson, John Dickinson)
Caller-ID Numbering Plans
Caller-ID Numbering Plans Tokens RFC 3939
Standards Action
Candidate Access Router Discovery (CARD) Parameters
AVP Type Registry RFC 4065
Expert Review (Expert: Unassigned)
Experimental Mobility Protocol Subtype Registry RFC 4065
Specification Required and IESG Review (Expert: Unassigned)
Layer 2 Access Technology Identifier Registry RFC 4065
Specification Required (Expert: Unassigned)
Captive Portals
Captive Portal API Keys RFC 8908
Specification Required (Expert: Tommy Pauly, Darshak Thakore, Martin Thomson)
CBOR Object Signing and Encryption (COSE)
COSE Algorithms RFC 9053, RFC 9054
Integers less than -65536: Private Use.
Integer values from -65536 to -257: Specification Required.
Integer values between -256 and 255: Standards Action With Expert Review.
Integer values from 256 to 65535: Specification Required.
Integer values greater than 65535: Expert Review.
Strings of length 1: Standards Action With Expert Review.
Strings of length 2: Specification Required.
Strings of length greater than 2: Expert Review.
(Expert: Göran Selander, Derek Atkins, Sean Turner)
COSE Elliptic Curves RFC 9053
Integers less than -65536: Private Use.
Integer values -65536 to -257: Specification Required.
Integer values -256 to 255: Standards Action With Expert Review.
Integer values 256 to 65535: Specification Required.
Integer values greater than 65535: Expert Review.
(Expert: Göran Selander, Derek Atkins, Sean Turner)
COSE Header Algorithm Parameters RFC 9053
Expert Review (Expert: Göran Selander, Derek Atkins, Sean Turner)
COSE Header Parameters RFC 9052
Integers less than -65536: Private Use.
Integer values in the range -1 to -65536: delegated to the COSE Header Algorithm Parameters registry.
Integer values between 1 and 255: Standards Action With Expert Review.
Integer values from 256 to 65535: Specification Required.
Integer values greater than 65535: Expert Review.
Strings of length 1: Standards Action With Expert Review.
Strings of length 2: Specification Required.
Strings of length greater than 2: Expert Review.
(Expert: Francesca Palombini, Carsten Bormann)
COSE Key Common Parameters RFC 9052
Integers less than -65536: Private Use.
Integer values in the range -65536 to -1: used for key parameters specific to a single algorithm delegated to the COSE Key Type Parameters registry.
Integer values between 0 and 255: Standards Action With Expert Review.
Integer values from 256 to 65535: Specification Required.
Integer values greater than 65535: Expert Review.
Strings of length 1: Standards Action With Expert Review.
Strings of length 2: Specification Required.
Strings of length greater than 2: Expert Review.
(Expert: Francesca Palombini, Carsten Bormann)
COSE Key Type Parameters RFC 9053
Expert Review (Expert: Göran Selander, Derek Atkins, Sean Turner)
COSE Key Types RFC 9053
Expert Review (Expert: Göran Selander, Derek Atkins, Sean Turner)
CBOR Web Token (CWT) Claims
CBOR Web Token (CWT) Claims RFC 8392
Integer values from -256 to 255: Standards Action.
Integer values from -65536 to -257: Specification Required.
Integer values from 256 to 65535: Specification Required.
Integer values greater than 65535: Expert Review.
Strings of length 1: Standards Action.
Strings of length 2: Specification Required.
Strings of length greater than 2: Expert Review.
(Expert: Mike Jones, Hannes Tschofenig, Ludwig Seitz)
CWT Confirmation Methods RFC 8747
Specification Required (Expert: Ludwig Seitz, Mike Jones)
Centralized Conferencing Manipulation Protocol (CCMP) Parameters
CCMP Message Types RFC 6503
Specification Required (Expert: Unassigned)
CCMP Response Codes RFC 6503
Specification Required (Expert: Unassigned)
CERT RR Certificate Types
CERT RR Certificate Types RFC 4398
0x0000-0x00FF: Standards Action.
0xFF00-0xFFFF: Standards Action.
0x0100-0xFEFF: IETF Review.
Certificate Management Protocol (CMP)
CMP Well-Known URI Path Segments RFC 9480
Specification Required (Expert: Hendrik Brockhaus, David von Oheimb, John Gray)
Channel-Binding Types
Channel-Binding Types RFC 5056
Expert Review (Expert: Nicolas Williams)
Character Sets
Character Set Registrations RFC 2978
Expert Review (Expert: Martin Dürst)
Character Sets RFC 2978
Expert Review (Expert: Martin Dürst)
Character Sets Mailing List Information RFC 2978
Expert Review
Cisco Service Level Assurance Protocol
Cisco SLA Protocol Address Family Registry RFC 6812
Specification Required (Expert: Unassigned)
Cisco SLA Protocol Authenticator Modes Registry RFC 6812
RFC Required
Cisco SLA Protocol CSLD Command Registry RFC 6812
RFC Required
Cisco SLA Protocol Measurement-Type Registry RFC 6812
RFC Required
Cisco SLA Protocol Roles Registry RFC 6812
RFC Required
Cisco SLA Protocol Status Types Registry RFC 6812
First Come First Served
Cisco SLA Protocol Version Number Registry RFC 6812
RFC Required
Common Architecture Label IPv6 Security Option (CALIPSO)
CALIPSO Domain of Interpretation (DOI) RFC 5570
1:0:0:0 - 254:255:255:255: Expert Review.
255:0:0:0 - 255:255:255:255: IESG Approval.
(Expert: Unassigned)
Common Name Resolution Protocol (CNRP) Parameters
Properties RFC 3367
First Come First Served
Property Types RFC 3367
First Come First Served
Status Messages RFC 3367
First Come First Served
Common Open Policy Service (COPS) Protocol
A-types RFC 3182
0-127: IETF Review.
128-255: Private Use.
ADMISSION_PRI (P-Type 0x05) Error Codes RFC 6401
0-127: IETF Review.
128-240: First Come First Served.
C-Num and C-Type Values RFC 2748
IETF Review
Client Types Values RFC 2748
Client-type = 0 Flags and Error-SubCodes RFC 4261
IETF Review
COPS-PR Object S-Num, S-Types, and Error-Codes RFC 3084
IETF Review
M-Types, Reason Sub-Codes, and Error Sub-codes RFC 2748
Values are assigned relative to the respective Client-type
Merge Strategies RFC 6401
0-127: IETF Review.
128-240: First Come First Served.
P-types RFC 2750
0-49151: IETF Review.
49152-53247: First Come First Served.
53248-65535: Reserved for Private Use.
R-Types, Reason-Codes, Report-Types, Decision Object Command-Codes/Flags, and Error-Codes RFC 2748
IETF Review
Receiver Proxy Control Policy Element (P-Type 0x07) Control-Value field RFC 5946
0-127: IETF Review.
128-240: First Come First Served.
Common Presence and Instant Messaging (CPIM) Headers
CPIM Headers RFC 3862
Standards Action
Concise Binary Object Representation (CBOR)
CBOR Simple Values RFC 8949
0-19: Standards Action.
32-255: Specification Required.
(Expert: Carsten Bormann)
CBOR Tags RFC 8949
0-23: Standards Action.
24-32767: Specification Required.
32768-18446744073709551615: First Come First Served.
(Expert: Carsten Bormann, Christian Amsüss)
Time Tag Map Keys RFC 9581
Specification Required (Expert: Henk Birkholz, Esko Dijk)
Timescales RFC 9581
RFC and Expert Review Required (Expert: Henk Birkholz, Esko Dijk)
Concise Data Definition Language (CDDL)
CDDL Control Operators RFC 8610
name includes internal dot: IETF Review.
name does not include internal dot: Specification Required.
(Expert: Jeffrey Yasskin, Henk Birkholz)
Concise Software Identifier (CoSWID)
CoSWID Items RFC 9393
0-32767: Standards Action with Expert Review.
32768-4294967295: Specification Required.
(Expert: Charles Schmidt, Jessica Fitzgerald-McKay, Henk Birkholz)
Connectivity Fault Management (CFM) OAM IETF Parameters
CFM OAM IETF OpCodes RFC 7319
Standards Action
CFM OAM IETF TLV Types RFC 7319
Standards Action
Constrained RESTful Environments (CoRE) Parameters
CoAP Codes RFC 7252
Reserved ranges may be allocated in accordance with section 4.3 of RFC 8126.
CoAP Content-Formats RFC 7252
0-255: Expert Review.
256-9999: IETF Review or IESG Approval.
10000-64999: First Come First Served.
65000-65535: Experimental use (no operational use).
(Expert: Esko Dijk (primary), Klaus Hartke (secondary), Carsten Bormann (secondary), Jaime Jimenez (secondary), Alexander Pelov (secondary))
CoAP Option Numbers RFC 7252
0-255: IETF Review or IESG Approval.
256-2047: Specification Required.
2048-64999: Expert Review.
65000-65535: Experimental use (no operational use).
(Expert: Bilhanan Silverajan (primary), Klaus Hartke (secondary), Carsten Bormann (secondary), Jaime Jimenez (secondary), Alexander Pelov (secondary))
CoAP Signaling Codes RFC 8323
IETF Review or IESG Approval
CoAP Signaling Option Numbers RFC 8323
0-255: IETF Review or IESG Approval.
256-2047: Specification Required.
2048-64999: Expert Review.
65000-65535: Experimental use (no operational use).
(Expert: Bilhanan Silverajan (primary), Klaus Hartke (secondary), Alexander Pelov (secondary))
Custom Problem Detail Keys RFC 9290
Expert Review (Expert: Thomas Fossati, Carsten Bormann)
Endpoint Type (et=) RD Parameter Values RFC 9176
value starts with "core": IETF Review.
all other values: Specification Required.
(Expert: Carsten Bormann, Jaime Jiménez, Christian Amsüss)
Interface Description (if=) Link Target Attribute Values RFC 6690
value starts with "core": IETF Review.
all other values: Specification Required.
(Expert: Carsten Bormann, Jaime Jimenez, Christian Amsüss)
OSCORE Flag Bits RFC 8613
Expert Review (Expert: Francesca Palombini, Göran Selander, Christian Amsüss)
RD Parameters RFC 9176
Expert Review (Expert: Carsten Bormann, Jaime Jiménez, Christian Amsüss)
Resource Type (rt=) Link Target Attribute Values RFC 6690
value starts with "core": IETF Review.
all other values: Specification Required.
(Expert: Carsten Bormann, Jaime Jimenez, Christian Amsüss)
Standard Problem Detail Keys RFC 9290
Specification Required (Expert: Thomas Fossati, Carsten Bormann)
Target Attributes RFC 9423
Expert Review (Expert: Carsten Bormann, Marco Tiloca)
Content Delivery Network Interconnection (CDNI) Parameters
CDNI Capabilities Redirection Modes RFC 8008
IETF Review
CDNI CI/T Error Codes RFC 8007
Specification Required (Expert: Kevin Ma, Ben Niven-Jenkins)
CDNI CI/T Trigger Types RFC 8007
RFC Required
CDNI Logging Directive Names RFC 7937
Specification Required (Expert: Kevin Ma)
CDNI Logging Field Names RFC 7937
Specification Required (Expert: Kevin Ma)
CDNI Logging File version RFC 7937
Specification Required (Expert: Kevin Ma)
CDNI Logging record-types RFC 7937
Specification Required (Expert: Kevin Ma)
CDNI Metadata Footprint Types RFC 8006
Specification Required (Expert: Kevin Ma)
CDNI Metadata Protocol Types RFC 8006
Specification Required (Expert: Kevin Ma)
CDNI Payload Types RFC 7736
Specification Required (Expert: Kevin Ma, Ben Niven-Jenkins)
CDNI RI Error response code RFC 7975
Specification Required (Expert: Kevin Ma, Ben Niven-Jenkins)
CDNI URI Signing Signed Token Transport RFC 9246
Specification Required (Expert: Phil Sorber)
CDNI URI Signing Verification Codes RFC 9246
Specification Required (Expert: Phil Sorber)
Content Disposition Values and Parameters
Content Disposition Parameters RFC 2183
First Come First Served
Content Disposition Values RFC 2183
Standards Track or IESG-Approved Experimental RFC
Handling Parameter Values RFC 3204
Not Defined
Voice Parameter Values RFC 2421
Not Defined
Content Security Policy Directives
Content Security Policy Directives RFC 7762
Specification Required (Expert: Mike West)
Content-Centric Networking (CCNx)
CCNx Echo Reply Codes RFC 9508
Specification Required (Expert: Dave Oran, Hitoshi Asaeda)
CCNx Hash Function Types RFC 8609
Specification Required (Expert: Dave Oran, Hitoshi Asaeda)
CCNx Hop-by-Hop Types RFC 8609
RFC Required
CCNx Interest Return Code Types RFC 8609
Specification Required (Expert: Dave Oran, Hitoshi Asaeda)
CCNx Message Types RFC 8609
RFC Required
CCNx Name Segment Types RFC 8609
Specification Required (Expert: Dave Oran, Hitoshi Asaeda)
CCNx Packet Types RFC 8609
RFC Required
CCNx Payload Types RFC 8609
Specification Required (Expert: Dave Oran, Hitoshi Asaeda)
CCNx Reply Types RFC 9344
RFC Required
CCNx Top-Level Types RFC 8609
RFC Required
CCNx Validation Algorithm Types RFC 8609
Specification Required (Expert: Dave Oran, Hitoshi Asaeda)
CCNx Validation-Dependent Data Types RFC 8609
RFC Required
Context labels for Internet Messages
Internet Message Content Types RFC 3458
RFC Required
Context Transfer Protocol (CXTP) Parameters
Context Transfer Profile Type Registry RFC 4065
Expert Review (Expert: Unassigned)
Context Transfer Protocol Authorization Token Calculation Algorithms RFC 4065
Expert Review (Expert: Unassigned)
Control And Provisioning of Wireless Access Points (CAPWAP) Parameters
AC DTLS Policy RFC 5415
Standards Action
AC Information Type RFC 5415
Expert Review (Expert: Margaret Cullen)
AC Security Types RFC 5415
Standards Action
Alternate Tunnel Sub-elements RFC 8350
Expert Review (Expert: Sri Gundavelli, Li Xue)
Alternate Tunnel-Types RFC 8350
Specification Required (Expert: Sri Gundavelli, Li Xue)
CAPWAP Control Message Flags RFC 5415
Expert Review (Expert: Margaret Cullen)
CAPWAP Header Flags RFC 5415
Expert Review (Expert: Margaret Cullen)
CAPWAP IEEE 802.11 Message Types RFC 5416
Expert Review (Expert: Margaret Cullen)
CAPWAP Message Element Type RFC 5415
Expert Review (Expert: Margaret Cullen)
CAPWAP Message Types RFC 5415
Expert Review (Expert: Margaret Cullen)
CAPWAP Transport Protocol Types RFC 5415
Expert Review (Expert: Margaret Cullen)
CAPWAP Wireless Binding Identifier RFC 5415
Expert Review (Expert: Margaret Cullen)
Data Transfer Mode RFC 5415
Expert Review (Expert: Margaret Cullen)
Data Transfer Type RFC 5415
Expert Review (Expert: Margaret Cullen)
Discovery Types RFC 5415
Expert Review (Expert: Margaret Cullen)
ECN Support RFC 5415
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 Antenna Combiner RFC 5416
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 Antenna Selection RFC 5416
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 Auth Type RFC 5416
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 Encryption Capabilities RFC 5416
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 Key Status RFC 5416
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 QoS RFC 5416
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 Session Key Flags RFC 5416
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 Split MAC Profile RFC 7494
Expert Review (Expert: Unassigned)
IEEE 802.11 Tagging Policy RFC 5416
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 WTP Radio Fail RFC 5416
Expert Review (Expert: Margaret Cullen)
IEEE 802.11 WTP Radio Type RFC 5416
Expert Review (Expert: Margaret Cullen)
Radio Admin State RFC 5415
Expert Review (Expert: Margaret Cullen)
Radio Failure Causes RFC 5415
Expert Review (Expert: Margaret Cullen)
Radio Operational State RFC 5415
Expert Review (Expert: Margaret Cullen)
Result Code RFC 5415
Expert Review (Expert: Margaret Cullen)
Returned Message Element Reason RFC 5415
Expert Review (Expert: Margaret Cullen)
WTP Board Data Type RFC 5415
Expert Review (Expert: Margaret Cullen)
WTP Descriptor Type RFC 5415
Expert Review (Expert: Margaret Cullen)
WTP Fallback Mode RFC 5415
Expert Review (Expert: Margaret Cullen)
WTP Frame Tunnel Mode RFC 5415
Expert Review (Expert: Margaret Cullen)
WTP MAC Type RFC 5415
Expert Review (Expert: Margaret Cullen)
WTP Radio Stats Failure Type RFC 5415
Expert Review (Expert: Margaret Cullen)
WTP Reboot Stats Failure Type RFC 5415
Expert Review (Expert: Margaret Cullen)
ControLling mUltiple streams for tElepresence (CLUE)
CLUE Message Types RFC 8847
Specification Required (Expert: Roni Even, Simon Pietro Romano)
CLUE Response Codes RFC 8847
Specification Required (Expert: Roni Even, Simon Pietro Romano)
CLUE Schema <personType> RFC 8846
Expert Review (Expert: Roni Even, Simon Pietro Romano)
CLUE Schema <presentation> RFC 8846
Expert Review (Expert: Roni Even, Simon Pietro Romano)
CLUE Schema <sensitivityPattern> RFC 8846
Expert Review (Expert: Roni Even, Simon Pietro Romano)
CLUE Schema <view> RFC 8846
Expert Review (Expert: Roni Even, Simon Pietro Romano)
Cryptographic Suites for IKEv1, IKEv2, and IPsec
Cryptographic Suites for IKEv1, IKEv2, and IPsec RFC 4308
Expert Review and RFC Required (Expert: Tero Kivinen)
Cryptographically Generated Addresses (CGA) Message Type Name Space
CGA Extension Type Tags RFC 3972, RFC 9374
First Come First Served
CGA Extension Type Values RFC 4581
Standards Action
CGA SEC RFC 4982
Standards Action
D
Data Channel Establishment Protocol (DCEP) Parameters
Channel Types RFC 8832
RFC Required
Message Types RFC 8832
RFC Required
Data Link Switching Client Access Protocol (DCAP) Parameters
Data Link Switching Protocol Frame Codes RFC 2114
RFC Required
Data Link Switching Protocol Sender Capability Codes RFC 2114
RFC Required
Data Structure for the Security Suitability of Cryptographic Algorithms (DSSC)
Cryptographic Algorithms RFC 5698
First Come First Served
Parameter Definitions RFC 5698
RFC Required
Datagram Congestion Control Protocol (DCCP) Parameters
Ack Vector States RFC 4340
Standards Action
CCID2-specific Feature Numbers (128-255) RFC 4341
Standards Action
CCID2-specific Option Types (128-255) RFC 4341
Standards Action
CCID2-specific Reset codes (128-255) RFC 4341
Standards Action
CCID3-specific Feature Numbers (128-255) RFC 4342
Standards Action
CCID3-specific Option Types (128-255) RFC 4342
Standards Action
CCID3-specific Reset codes (128-255) RFC 4342
Standards Action
CCID4-specific Feature Numbers (128-255) RFC 5622
Standards Action
CCID4-specific Option Types (128-255) RFC 5622
Standards Action
CCID4-specific Reset codes (128-255) RFC 5622
Standards Action
Congestion Control Identifiers RFC 4340
0-1: IETF Review (IETF RFC publication).
4-247: IETF Review (IETF RFC publication).
248-254: Reserved.
255: IETF Review (IETF RFC publication).
Drop Codes RFC 4340
Standards Action
Feature Numbers RFC 4340
10-119: IETF Review (IETF RFC publication).
120-126: Reserved.
127: IETF Review (IETF RFC publication).
128-255: CCID-specific codes.
Option Types RFC 4340
3-30: IETF Review (IETF RFC publication).
45-119: IETF Review (IETF RFC publication).
120-126: Reserved.
127: IETF Review (IETF RFC publication).
128-255: CCID-specific codes.
Packet Types RFC 4340
Standards Action
Reset Codes RFC 4340
12-119: IETF Review (IETF RFC publication).
120-126: Reserved.
127: IETF Review (IETF RFC publication).
128-255: CCID-specific codes.
Service Codes RFC 4340
Specification Required or First Come First Served (Expert: Eddie Kohler)
Datagram Transport Layer Security (DTLS) Extension to Establish Keys for Secure Real-time Transport Protocol (SRTP)
DTLS-SRTP Protection Profiles RFC 5764
Specification Required (Expert: Unassigned)
Delivery Status Notification (DSN) Types
Address Types RFC 3461, RFC 3464
RFC Required
Diagnostic Types RFC 3461, RFC 3464
RFC Required
MTA Name Types RFC 3461, RFC 3464
RFC Required
DetNet Associated Channel Header (d-ACH) Flags
DetNet Associated Channel Header (d-ACH) Flags RFC 9546
IETF Review
Device Identification
DEV URN Subtypes RFC 9039
Specification Required or IESG Approval (Expert: Jari Arkko, Jaime Jimenez)
Differentiated Services Field Codepoints (DSCP)
Differentiated Services Field Codepoints (DSCP) RFC 2474, RFC 3260
ECN Field (Bits 6-7) RFC 3168
RFC Required
Directory System Names
Distinguished Names RFC 1779
Closed see RFC 4520
Distributed Denial-of-Service Open Threat Signaling (DOTS) Signal Channel
DOTS Signal Channel Attack Status Codes RFC 9132
Standards Action
DOTS Signal Channel CBOR Key Values RFC 9132
1-127: IETF Review.
128-255: IETF Review.
256-16383: IETF Review.
16384-32767: Specification Required.
32768-49151: IETF Review.
49152-65535: Private Use.
(Expert: Nik Teague, Mohamed Boucadair, Andrew Mortensen, Tirumaleswar Reddy)
DOTS Signal Channel Conflict Cause Codes RFC 9132
Standards Action
DOTS Signal Channel Conflict Status Codes RFC 9132
Standards Action
DOTS Signal Channel Status Codes RFC 9132
Standards Action
Distributed Node Consensus Protocol (DNCP)
DNCP TLV Types RFC 7787
Standards Action
HNCP TLV Types RFC 7788
RFC Required
DNS-Based Authentication of Named Entities (DANE) Parameters
TLSA Certificate Usages RFC 6698, RFC 7218
RFC Required
TLSA Matching Types RFC 6698, RFC 7218
Specification Required (Expert: Unassigned)
TLSA Selectors RFC 6698, RFC 7218
Specification Required (Expert: Unassigned)
Domain Name System (DNS) Parameters
AFSDB RR Subtype RFC 6895, RFC 1035
Registry closed per RFC 6895
AMTRELAY Relay Type Field RFC 8777
Specification Required (Expert: Unassigned)
Child Synchronization (CSYNC) Flags RFC 7477
Standards Action
DHCID RR Digest Type Codes RFC 4701
Standards Action
DHCID RR Identifier Type Codes RFC 4701
Standards Action (Expert: Ólafur Guðmundsson)
DNS Catalog Zones Properties RFC 9432
property prefix ends in the label "ext": Private Use.
all other property prefixes: Expert Review.
(Expert: Peter Thomassen, Ondřej Surý, Willem Toorop)
DNS CLASSes RFC 6895, RFC 9108
0: Standards Action.
1-127: IETF Review.
128-253: IETF Review.
256-32767: IETF Review.
32768-57343: Specification Required.
57344-65279: Specification Required.
65280-65534: Private Use.
65535: Standards Action.
(Expert: Petr Špaček, Ladislav Lhotka)
DNS EDNS0 Option Codes (OPT) RFC 6891
1-65000: Expert Review.
65001-65534: Local/Experimental Use.
(Expert: Ólafur Guðmundsson (primary), Frederico AC Neves (secondary), Ray Bellis (secondary), Roy Arends (secondary))
DNS Header Flags RFC 6895, RFC 1035
Standards Action
DNS KEY RR Protocol Octet Values RFC 4034, RFC 2535
CLOSED per RFC 3445
DNS Label Types RFC 6891
Standards Action
DNS OpCodes RFC 6895, RFC 1035
Standards Action
DNS RCODEs RFC 6895, RFC 1035
0-3840: IETF Review.
3841-4095: Private Use.
4096-65534: IETF Review.
65535: Reserved (Standards Action).
DNS Resolver Information Keys RFC 9606
Specification Required (Expert: Tirumal Reddy, Mohamed Boucadair, Ben Schwartz)
DNS Server Cookie Methods RFC 9018, RFC 7873
Version 1-239, Size 8-32: Expert Review.
Version 240-254, Size 8-32: Private Use.
(Expert: Ondřej Surý, Donald Eastlake)
DNS-over-QUIC Error Codes RFC 9250
provisional (greater than 0x3f): Expert Review.
provisional registration Date field update: First Come First Served.
permanent, 0x00-0x3f: Standards Action or IESG Approval.
permanent, greater than 0x3f: Specification Required.
(Expert: Sara Dickinson, Christian Huitema)
DNSKEY RR Flags RFC 3755, RFC 4034
Standards Action
DSO Type Codes RFC 8490
0x0004-0x003F: Standards Action.
0x0040-0xF7FF: Expert Review.
0xF800-0xFBFF: Experimental/Local Use.
0xFC00-0xFFFF: Standards Action.
(Expert: Ted Lemon, Sara Dickinson, John Dickinson)
EDNS Header Flags (16 bits) RFC 6891
Standards Action
EDNS version Number (8 bits) RFC 6891
Standards Action
Extended DNS Error Codes RFC 8914
0-49151: First Come First Served.
49152-65535: Private Use.
Resource Record (RR) TYPEs RFC 6895, RFC 1035, RFC 9108
0: RRTYPE zero is used as a special indicator for the SIG RR RFC 2931, RFC 4034 and in other circumstances and must never be allocated for ordinary use..
1-127: Expert Review (see mailing list information in RFC 6895) or Standards Action.
128-255: Expert Review (see mailing list information in RFC 6895) or Standards Action.
256-61439: Expert Review (see mailing list information in RFC 6895) or Standards Action.
61440-65279: Reserved for future use (IETF Review required to define use).
65280-65534: Private Use.
65535: Reserved (Standards Action).
(Expert: Roy Arends, Frederico AC Neves, Ólafur Guðmundsson, Ray Bellis)
Service Parameter Keys (SvcParamKeys) RFC 9460
0-65279: Expert Review.
65280-65534: Private Use.
(Expert: Benjamin Schwartz, David Lawrence)
SSHFP RR types for fingerprint types RFC 4255
IETF Review
SSHFP RR Types for public key algorithms RFC 4255
IETF Review
Underscored and Globally Scoped DNS Node Names RFC 8552
Expert Review (Expert: Frederico A C Neves, Paul Wouters)
ZONEMD Hash Algorithms RFC 8976
1-239: Specification Required.
240-254: Private Use.
(Expert: Warren Kumari, Duane Wessels, Wes Hardaker)
ZONEMD Schemes RFC 8976
1-239: Specification Required.
240-254: Private Use.
(Expert: Warren Kumari, Duane Wessels, Wes Hardaker)
ZONEVERSION TYPE Values RFC 9660
0-245: Specification Required.
246-254: Private Use.
255: Reserved.
(Expert: Hugo Salgado, Mauricio Vergara Ereche, Duane Wessels)
Domain Name System Security (DNSSEC) Algorithm Numbers
Digest Algorithms RFC 3658, RFC 4034, RFC 4035, RFC 9157
RFC Required
DNS KEY Record Diffie-Hellman Prime Lengths RFC 2539
IETF Review
DNS KEY Record Diffie-Hellman Well-Known Prime/Generator Pairs RFC 2539
0x0000-0x07ff: Standards Action.
0x0800-0xbfff: RFC Required.
DNS Security Algorithm Numbers RFC 4034, RFC 3755, RFC 6014, RFC 6944
RFC Required
Domain Name System Security (DNSSEC) NextSECure3 (NSEC3) Parameters
DNSSEC NSEC3 Flags RFC 5155, RFC 9157
RFC Required
DNSSEC NSEC3 Hash Algorithms RFC 5155, RFC 9157
RFC Required
DNSSEC NSEC3PARAM Flags RFC 5155, RFC 9157
RFC Required
Domain-based Message Authentication, Reporting, and Conformance (DMARC) Parameters
DMARC Report Format Registry RFC 7489
Specification Required (Expert: Scott Kitterman)
DMARC Tag Registry RFC 7489
Specification Required (Expert: Scott Kitterman)
DomainKeys Identified Mail (DKIM) Parameters
_domainkey DNS TXT Record Tag Specifications RFC 6376
IETF Review
Authorized Third-Party Signature (ATPS) Tag Registry RFC 6541
Specification Required (Expert: Unassigned)
DKIM Hash Algorithms RFC 6376
IETF Review
DKIM Key Type RFC 6376
IETF Review
DKIM Reporting Tag Registry RFC 6651
Specification Required (Expert: Unassigned)
DKIM Selector Flags RFC 6376
IETF Review
DKIM Service Types RFC 6376
IETF Review
DKIM Signature Tag Specifications RFC 6376
IETF Review
DKIM-Signature Canonicalization Body RFC 6376
IETF Review
DKIM-Signature Canonicalization Header RFC 6376
IETF Review
DKIM-Signature Query Method RFC 6376
IETF Review
Drone Remote ID Protocol
DRIP Frame Types RFC 9575
0x01-0x9F: Expert Review.
0xA0-0xEF: First Come First Served.
0xF0-0xFF: Experimental Use.
(Expert: Adam Wiethuechter, Mohamed Boucadair)
DRIP SAM Types RFC 9575
Standards Action
Hierarchical a HIT (HHIT) Suite IDs RFC 9374
IETF Review
Hierarchical HIT (HHIT) Prefixes RFC 9374
Expert Review (Expert: Adam Wiethuechter, Mohamed Boucadair)
Dynamic Host Configuration Protocol (DHCP) and Bootstrap Protocol (BOOTP) Parameters
Altitude Type Registry RFC 6225
Standards Action
Authentication Suboption (value 8) - Algorithm identifier values RFC 4030
IETF Review
Authentication Suboption (value 8) - Protocol identifier values RFC 3118
IETF Review
Authentication Suboption (value 8) - Replay Detection Method (RDM) identifier values RFC 4030
IETF Review
BOOTP Vendor Extensions and DHCP Options RFC 2939
IETF Review
CableLabs Client Configuration Option Ticket Control Mask Bit Definitions RFC 3594
IETF Review
Datum Registry RFC 6225
Standards Action
DHCP Cablelabs Client Configuration Option Type 122 Sub-Option Codes RFC 3495
IETF Review
DHCP Message Type 53 Values RFC 2939
IETF Review
DHCP Options Permitted in the RADIUS DHCPv4-Options Attribute RFC 9445
Expert Review (Expert: Alan DeKok, Mohamed Boucadair)
DHCP Relay Agent Sub-Option Codes RFC 3046
IETF Review
DHCP State Type 156 Values RFC 6926
IETF Review
DHCP Status Code Type 151 Values RFC 6926
IETF Review
GeoLoc Option Version Registry RFC 6225
Standards Action
IEEE 802.21 Service Type (MoS DHCPv4 Address and FQDN Sub-Options) RFC 5678
Standards Action
NetWare/IP Option Type 63 Sub-Option Codes RFC 2242
Not defined
NTP Time Source Suboptions RFC 5908
IETF Review
RADIUS Attributes Permitted in RADIUS Attributes DHCP Suboption RFC 9445
Expert Review (Expert: Alan DeKok, Mohamed Boucadair)
VSS Type Options RFC 6607
IETF Review
Dynamic Host Configuration Protocol for IPv6 (DHCPv6)
DHCPv6 Options Permitted in the RADIUS DHCPv6-Options Attribute RFC 9445
Expert Review (Expert: Alan DeKok, Mohamed Boucadair)
DUIDs RFC 8415
Standards Action
IEEE 802.21 Service Type (MoS DHCPv6 Address and FQDN Sub-Options) RFC 5678
Standards Action
Message Types RFC 8415
Standards Action
NTP Time Source Suboptions RFC 5908
IETF Review
Option Codes RFC 8415
Expert Review and Standards Action (Expert: Ted Lemon, Bernie Volz, Tomek Mrugalski)
Option Codes Permitted in the S46 Priority Option RFC 8026
IETF Review
OPTION_LQ_QUERY option RFC 5007
Standards Action
Options Permitted in the Relay-Supplied Options Option RFC 6422
IETF Review
Processor Architecture Types RFC 5970
Expert Review (Expert: Vincent Zimmer, Bernie Volz, Tomek Mrugalski)
RADIUS Attributes Permitted in DHCPv6 RADIUS Option RFC 7037
Expert Review (Expert: Bernie Volz, Tomek Mrugalski)
Status Codes RFC 8415
Standards Action
Supported Transport RFC 9527
RFC Required
VSS Type Options RFC 6607
IETF Review
Dynamic Link Exchange Protocol (DLEP) Parameters
Data Item Type Values RFC 8175
26-65407: Specification Required.
65408-65534: Private Use.
(Expert: Rick Taylor)
Extension Type Values RFC 8175
2-65519: Specification Required.
65520-65534: Private Use.
(Expert: Rick Taylor)
Hop Control Actions Values RFC 8629
4-65519: Specification Required.
65520-65534: Private Use.
(Expert: Rick Taylor)
IPv4 Address Flags RFC 8175
Specification Required (Expert: Rick Taylor)
IPv4 Attached Subnet Flags RFC 8175
Specification Required (Expert: Rick Taylor)
IPv4 Connection Point Flags RFC 8175
Specification Required (Expert: Rick Taylor)
IPv6 Address Flags RFC 8175
Specification Required (Expert: Rick Taylor)
IPv6 Attached Subnet Flags RFC 8175
Specification Required (Expert: Rick Taylor)
IPv6 Connection Point Flags RFC 8175
Specification Required (Expert: Rick Taylor)
Message Type Values RFC 8175
17-65519: Specification Required.
65520-65534: Private Use.
(Expert: Rick Taylor)
Peer Type Flags RFC 8175
Specification Required (Expert: Rick Taylor)
Queue Parameter Sub-Data Item Type Values RFC 8651
2-65407: Specification Required.
65408-65534: Private Use.
(Expert: Unassigned)
Signal Type Values RFC 8175
3-65519: Specification Required.
65520-65534: Private Use.
(Expert: Rick Taylor)
Status Code Values RFC 8175
4-111: Specification Required.
112-127: Private Use.
133-239: Specification Required.
240-254: Private Use.
(Expert: Rick Taylor)
Dynamic Source Routing (DSR) Protocol Parameters
Dynamic Source Routing (DSR) Protocol Options RFC 4728
Expert Review (Expert: David B. Johnson, David A. Maltz, Yih-Chun Hu)
Dynamic Source Routing (DSR) Protocol Route Error Types RFC 4728
Expert Review (Expert: David B. Johnson, David A. Maltz, Yih-Chun Hu)
Dynamic Symmetric Key Provisioning Protocol (DSKPP)
DSKPP Version Registry RFC 6063
Standards Action
Key Container Registry RFC 6063
Specification Required (Expert: Unassigned)
PRF Algorithm ID Registry RFC 6063
Specification Required (Expert: Unassigned)
Status Codes RFC 6063
Specification Required (Expert: Unassigned)
E
EAP-pwd Parameters
Password Preprocessing Methods RFC 5931
Specification Required (Expert: Joseph Salowey)
PRF Registry RFC 5931
IETF Review
PWD-Exch Messages RFC 5931
IETF Review
Random Function Registry RFC 5931
Specification Required (Expert: Joseph Salowey)
Electronic Commerce Modeling Language (ECML) Parameters
URN Prefix: urn:ietf:params:ecml RFC 4112
IESG Approval
Electronic Commerce Modeling Language Version 2 (ECMLv2) Parameters
Ecom_Payment_Card_Protocol Registry RFC 4112
Expert Approval (Expert: Donald Eastlake)
Ecom_Payment_Card_Type Registry RFC 4112
Expert Approval (Expert: Donald Eastlake)
Ecom_Transaction_Type Registry RFC 4112
Expert Approval (Expert: Donald Eastlake)
Email Authentication Parameters
Email Authentication Methods RFC 8601
Expert Review (Expert: Murray Kucherawy (primary), Scott Kitterman (secondary))
Email Authentication Property Types RFC 8601
Expert Review (Expert: Murray Kucherawy (primary), Scott Kitterman (secondary))
Email Authentication Result Names RFC 8601
Expert Review (Expert: Murray Kucherawy (primary), Scott Kitterman (secondary))
Emergency Call Additional Data
Device Classification RFC 7852
Expert Review (Expert: Brian Rosen)
Device ID Type RFC 7852
Expert Review (Expert: Brian Rosen)
Device/Service Data Type RFC 7852
Specification Required (Expert: Brian Rosen)
Emergency Call Data Types RFC 7852
Specification Required (Expert: Brian Rosen (primary), Henning Schulzrinne (secondary))
Provider ID Series RFC 7852
Expert Review (Expert: Brian Rosen)
Service Environment RFC 7852
Expert Review (Expert: Brian Rosen)
Service Mobility RFC 7852
Expert Review (Expert: Brian Rosen)
Service Type RFC 7852
Expert Review (Expert: Brian Rosen)
Type of Provider RFC 7852
Expert Review (Expert: Brian Rosen)
Emergency Call Metadata/Control Data
Emergency Call Action Failure Reasons RFC 8147
Expert Review (Expert: Randall Gellens)
Emergency Call Actions RFC 8147
Expert Review (Expert: Randall Gellens)
Emergency Call Static Messages RFC 8148
Specification Required (Expert: Randall Gellens)
Emergency Call Vehicle Camera IDs RFC 8148
Expert Review (Expert: Randall Gellens)
Emergency Call Vehicle Lamp IDs RFC 8148
Expert Review (Expert: Randall Gellens)
Enumservice Registrations
Enumservice Registrations RFC 6117
Specification Required (Expert: Bernie Hoeneisen)
Ephemeral Diffie-Hellman Over COSE (EDHOC)
EDHOC Authentication Credential Types Internet Draft draft-ietf-core-oscore-edhoc-11
less than -65536: Private Use.
-65536 to -25: Specification Required.
-24 to 23: Standards Action with Expert Review.
24 to 65535: Specification Required.
greater than 65535: Private Use.
(Expert: Unassigned)
EDHOC Cipher Suites RFC 9528
-65536 to -25: Specification Required.
-24 to -21: Private Use.
-20 to 23: Standards Action with Expert Review.
24 to 65535: Specification Required.
(Expert: John Mattson, Göran Selander, Mališa Vučinić)
EDHOC Error Codes RFC 9528
-65536 to -25: Expert Review.
-24 to 23: Standards Action.
24 to 65535: Expert Review.
(Expert: John Mattson, Göran Selander, Mališa Vučinić)
EDHOC Exporter Labels RFC 9528
0-23: Standards Action.
24-32767: Expert Review.
32768-65535: Private Use.
(Expert: John Mattson, Göran Selander, Mališa Vučinić)
EDHOC External Authorization Data RFC 9528
0-23: Standards Action with Expert Review.
24-65535: Specification Required.
(Expert: John Mattson, Göran Selander, Mališa Vučinić)
EDHOC Method Types RFC 9528
-65536 to -25: Specification Required.
-24 to 23: Standards Action with Expert Review.
24 to 65535: Specification Required.
(Expert: John Mattson, Göran Selander, Mališa Vučinić)
ESP AGGFRAG_PAYLOAD
AGGFRAG_PAYLOAD Sub-Types RFC 9347
Expert Review (Expert: Christian Hopps)
Ethernet VPN (EVPN)
EVPN Route Types RFC 7432
RFC Required
Extended Master Session Key (EMSK) Parameters
EMSK PRF Numbers RFC 5295
0-220: IETF Review.
221-255: Reserved for Private Use.
User Specific Root Keys (USRK) Key Labels RFC 5295
Specification Required (Expert: Unassigned)
Extensible Authentication Protocol (EAP)
ADE Type Namespace RFC 4746
Expert Review (Expert: Joseph Salowey)
Attribute Types (Non-Skippable Attributes 0-127) RFC 4187
Specification Required (Expert: Vesa Lehtovirta)
Attribute Types (Skippable Attributes 128-255) RFC 4187
Specification Required (Expert: Vesa Lehtovirta)
DH Group ID Namespace RFC 4746
Expert Review (Expert: Unassigned)
EAP Finish/Re-auth Flags RFC 6630
Standards Action or IESG Approval
EAP Initiate and Finish Attributes RFC 6696
IETF Review
EAP Initiate/Re-auth Flags RFC 6630
Standards Action or IESG Approval
EAP Initiate/Re-auth-Start Flags RFC 6630
Standards Action or IESG Approval
EAP Lower Layers RFC 6677
Expert Review (Expert: Joseph Salowey)
EAP-AKA' AT_KDF Key Derivation Function Values RFC 9048
Specification Required (Expert: Vesa Lehtovirta)
EAP-AKA' AT_KDF_FS Key Derivation Function Values Internet Draft draft-ietf-emu-aka-pfs-12
Specification Required (Expert: Unassigned)
EAP-FAST (value 43) Error-TLV (value 5) Error-Codes
EAP-FAST (value 43) Error-TLV (value 5) Error-Codes RFC 4851
Specification Required (Expert: Joseph Salowey)
EAP-FAST (value 43) Request-Action TLV (value 19) Action Codes
EAP-FAST (value 43) Request-Action TLV (value 19) Action Codes RFC 4851
Specification Required (Expert: Joseph Salowey)
EAP-FAST GTC Error Codes RFC 5421
Specification Required (Expert: Joseph Salowey)
EAP-FAST PAC Attribute Types RFC 5422
Specification Required (Expert: Joseph Salowey)
EAP-FAST PAC Types RFC 5422
Specification Required (Expert: Joseph Salowey)
EAP-FAST Server-Trusted-Root Credential Format Types RFC 5422
Specification Required (Expert: Joseph Salowey)
EAP-FAST TLV Types (Value 43)
EAP-FAST TLV Types (Value 43) RFC 4851
Specification Required (Expert: Joseph Salowey)
EAP-GPSK Ciphersuites RFC 5433
IETF Review
EAP-GPSK Failure Codes RFC 5433
IETF Review
EAP-GPSK OP Codes RFC 5433
IETF Review
EAP-GPSK Protected Data Payloads RFC 5433
IETF Review
EAP-IKEv2 Payloads RFC 5106
Expert Review (Expert: Joseph Salowey)
EAP-NOOB Cryptosuites
EAP-NOOB Cryptosuites RFC 9140
Specification Required (Expert: Tuomas Aura, Mohit Sethi)
EAP-NOOB Error Codes
EAP-NOOB Error Codes RFC 9140
6001-6999: Private and Experimental Use.
All other values: Specification Required.
(Expert: Tuomas Aura, Mohit Sethi)
EAP-NOOB Message Types
EAP-NOOB Message Types RFC 9140
Specification Required (Expert: Tuomas Aura, Mohit Sethi)
EAP-NOOB PeerInfo Data Fields
EAP-NOOB PeerInfo Data Fields RFC 9140
Specification Required (Expert: Tuomas Aura, Mohit Sethi)
EAP-NOOB ServerInfo Data Fields
EAP-NOOB ServerInfo Data Fields RFC 9140
Specification Required (Expert: Tuomas Aura, Mohit Sethi)
EAP-SAKE messages RFC 4763
IETF Review with Specification Required (Expert: Unassigned)
EAP-TTLS AVP Usage RFC 5281
IETF Review
Encryption Algorithms RFC 4793
0x0003-0x7fff: Specification Required and IESG Approval.
0x8000-0xffff: Vendor-specific proprietary algorithms.
(Expert: Joseph Salowey)
EXT_Type Numbers RFC 4764
Specification Required (Expert: Joseph Salowey)
Hash Algorithms RFC 4793
0x0006-0x7fff: Specification Required and IESG Approval.
0x8000-0xffff: Proprietary vendor-specific algorithms.
(Expert: Joseph Salowey)
MAC Algorithms RFC 4793
0x0002-0x7fff: Specification Required and IESG Approval.
0x8000-0xffff: Vendor-specific proprietary algorithms.
(Expert: Joseph Salowey)
MAC ID Namespace RFC 4746
Expert Review (Expert: Joseph Salowey)
Message Types RFC 6696
IETF Review
Method Types RFC 3748
1-191: Specification Required.
192-253: Standards Action.
254: Expanded Type.
255: Experimental.
256-4294967295: Specification Required.
(Expert: Joseph Salowey)
non-skippable attributes RFC 4763
IETF Review with Specification Required (Expert: Unassigned)
Packet Codes RFC 3748
Standards Action
Public Key ID Namespace RFC 4746
Expert Review (Expert: Joseph Salowey)
Re-authentication Cryptosuites RFC 6696
IETF Review
skippable attributes RFC 4763
IETF Review
Subtypes RFC 4187
Specification Required (Expert: Vesa Lehtovirta)
TEAP Error TLV (value 5) Error Codes
TEAP Error TLV (value 5) Error Codes Internet Draft draft-ietf-emu-rfc7170bis-19
Specification Required (Expert: Margaret Cullen, Nancy Cam-Winget)
TEAP Identity-Type TLV (value 2) Registry
TEAP Identity-Type TLV (value 2) Registry Internet Draft draft-ietf-emu-rfc7170bis-19
Specification Required (Expert: Unassigned)
TEAP PAC TLV (value 11) PAC Attribute Type Codes
TEAP PAC TLV (value 11) PAC Attribute Type Codes Internet Draft draft-ietf-emu-rfc7170bis-19
Registry closed
TEAP PAC TLV (value 11) PAC-Type Type Codes
TEAP PAC TLV (value 11) PAC-Type Type Codes Internet Draft draft-ietf-emu-rfc7170bis-19
Registry closed
TEAP Request-Action TLV (value 8) Registry
TEAP Request-Action TLV (value 8) Registry Internet Draft draft-ietf-emu-rfc7170bis-19
Specification Required (Expert: Unassigned)
TEAP Status Codes
TEAP Status Codes Internet Draft draft-ietf-emu-rfc7170bis-19
Specification Required (Expert: Unassigned)
TEAP TLV Types
TEAP TLV Types Internet Draft draft-ietf-emu-rfc7170bis-19
Specification Required (Expert: Margaret Cullen, Nancy Cam-Winget)
TEAP Trusted-Server-Root TLV (value 17) Credential-Format Codes
TEAP Trusted-Server-Root TLV (value 17) Credential-Format Codes Internet Draft draft-ietf-emu-rfc7170bis-19
Specification Required (Expert: Unassigned)
Trusted Non-3GPP Access EAP Parameters RFC 7458
Specification Required (Expert: Jouni Korhonen)
Extensible Authentication Protocol (EAP) Channel-Binding Parameters
EAP Channel-Binding Codes RFC 6677
Standards Action
EAP Channel-Binding Namespaces RFC 6677
IETF Review
Extensible Authentication Protocol (EAP) Encrypted Key Exchange (EKE) Registry
EAP-EKE Channel-Binding Type Registry RFC 6124
Specification Required (Expert: Joseph Salowey)
EAP-EKE Diffie-Hellman Group Registry RFC 6124
Specification Required (Expert: Joseph Salowey)
EAP-EKE Encryption Algorithm Registry RFC 6124
Specification Required (Expert: Joseph Salowey)
EAP-EKE Exchange Registry RFC 6124
RFC Required
EAP-EKE Failure-Code Registry RFC 6124
RFC Required
EAP-EKE Identity Type Registry RFC 6124
Specification Required (Expert: Joseph Salowey)
EAP-EKE Keyed Message Digest (MAC) Registry RFC 6124
Specification Required (Expert: Joseph Salowey)
EAP-EKE Pseudo Random Function Registry RFC 6124
Specification Required (Expert: Joseph Salowey)
Extensible Binary Meta Language (EBML)
EBML DocTypes RFC 8794
First Come First Served
EBML Element IDs RFC 8794
0x80-0xFE: RFC Required.
0x407F-0x7FFE: Specification Required.
0x203FFF-0x3FFFFE: First Come First Served.
0x101FFFFF-0x1FFFFFFE: Specification Required or First Come First Served.
(Expert: Dave Rice (primary), Steve Lhomme (backup), Moritz Bunkus (backup))
Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Parameters
XCAP Application Unique IDs RFC 4825
Standards Action
Extensible Provisioning Protocol (EPP) Extensions
Extensions for the Extensible Provisioning Protocol (EPP) RFC 7451
Specification Required (Expert: Scott Hollenbeck (primary), Alexander Mayrhofer (secondary), Ning Kong (secondary), Gavin Brown (secondary), Roger D Carney (secondary), Jim Galvin (secondary))
Extensible Provisioning Protocol (EPP) Organization Role Values
EPP Organization Role Values RFC 8543
Expert Review (Expert: James Gould)
Extensible Provisioning Protocol (EPP) Repository Identifiers
EPP Repository Identifiers RFC 5730
First Come First Served
F
FCAST Parameters
FCAST Object Metadata Encoding RFC 6968
Expert Review (Expert: Unassigned)
FCAST Object Metadata Format RFC 6968
Specification Required (Expert: Unassigned)
FCAST Object Metadata Types RFC 6968
Expert Review (Expert: Unassigned)
Federated File System (FedFS) Parameters
FedFS Annotation Keys RFC 7532
First Come First Served
FedFS Object Identifiers RFC 7532
Registry Closed
Fibre Channel Port Types Registry
Fibre Channel Port Types RFC 4044
1-9999: Specification Required.
10000-99999: Private Use.
100000 and higher: Reserved.
(Expert: Claudio DeSanti)
Flow Spec Component Types
Flow Spec Component Types RFC 8955, RFC 8956
0: Reserved.
1-127: Specification Required.
128-254: Expert Review.
255: Reserved.
(Expert: Susan Hares, Robert Raszuk)
FLUTE - File Delivery over Unidirectional Transport (FLUTE) Parameters
FLUTE Content Encoding Algorithms RFC 6726
Specification Required (Expert: Unassigned)
FOOBAR Address Family Numbers
Assigned FOOBAR Address Families RFC 1639
IANA assignment
Forwarding and Control Element Separation (ForCES)
Association Setup Response RFC 5810
0x00000000-0x000000FF: IETF Review.
0x00000100-0x0000FFFF: Specification Required.
(Expert: Jamal Hadi Salim, Joel Halpern)
Association Teardown Message RFC 5810
0x00000000-0x0000FFFF: IETF Review.
0x00010000-0x7FFFFFFF: Specification Required.
(Expert: Jamal Hadi Salim, Joel Halpern)
Exception ID RFC 6956
Specification Required (Expert: Jamal Hadi Salim, Joel Halpern)
EXTENDEDRESULT-TLV Result Values RFC 7391
Specification Required (Expert: Unassigned)
Header Flags RFC 5810
IETF Review
Logical Functional Block (LFB) Class Names and Class Identifiers RFC 5812, RFC 7121
0-65535: Standards Action.
>65535: First Come First Served with any publicly available specification.
Message Types RFC 5810
0x00-0x1F: IETF Review.
0x20-0x7F: Specification Required.
(Expert: Jamal Hadi Salim, Joel Halpern)
Metadata ID RFC 6956
Specification Required (Expert: Jamal Hadi Salim, Joel Halpern)
Operation Selection (OPER-TLV) Types RFC 5810
0x0000-0x00FF: IETF Review.
0x0100-0x7FFF: Specification Required.
(Expert: Jamal Hadi Salim, Joel Halpern)
RESULT-TLV Result Values RFC 5810
Expert Review (Expert: Jamal Hadi Salim, Joel Halpern)
TLV Types RFC 5810
0x0000-0x01FF: IETF Review.
0x0200-0x7FFF: Specification Required.
(Expert: Jamal Hadi Salim, Joel Halpern)
Validate Error ID RFC 6956
Specification Required (Expert: Jamal Hadi Salim, Joel Halpern)
Free Lossless Audio Codec (FLAC)
FLAC Application Metadata Block IDs Internet Draft draft-ietf-cellar-flac-14
First Come First Served
FTP parameters
FTP Commands and Extensions RFC 5797
registration marked "mandatory" ('m' in the "conf" column): Standards Action.
all other registrations: Specification Required.
(Expert: John Klensin)
G
General Internet Signalling Transport (GIST) Parameters
Additional Information Types RFC 5971
First Come First Served
Error Code 1 Subcodes RFC 5971
First Come First Served
Error Code 10 Subcodes RFC 5971
First Come First Served
Error Code 12 Subcodes RFC 5971
First Come First Served
Error Code 9 Subcodes RFC 5971
First Come First Served
GIST Error Codes RFC 5971
First Come First Served
GIST MA-Protocol-IDs RFC 5971
0-63: IETF Review.
64-119: Expert Review.
(Expert: Martin Stiemerling)
GIST Message Routing Methods RFC 5971
0-63: IETF Review.
64-119: Specification Required.
(Expert: Martin Stiemerling)
GIST Message Types RFC 5971
0-31: IETF Review.
32-55: Expert Review.
(Expert: Martin Stiemerling)
GIST Object Types RFC 5971
0-1023: IETF Review.
1024-1999: Specification Required.
(Expert: Martin Stiemerling)
NSIS Signaling Layer Protocol (NSLP) Identifiers RFC 5971
IESG Approval
Generalized Multi-Protocol Label Switching (GMPLS) Signaling Parameters
Actions RFC 3471
IETF Review or Specification Required (Expert: Unassigned)
Administrative Status Information Flags RFC 4783
Standards Action
Association Type RFC 4872
Standards Action
CWDM Channel Spacing Subregistry RFC 6205
Standards Action
DWDM Channel Spacing Subregistry RFC 6205
Standards Action
Ethernet Bandwidth Profiles RFC 6003
Standards Action
Ethernet Sender TSpec TLVs/Ethernet Flowspec TLVs RFC 6003
Standards Action
Ethernet Switching Granularities RFC 6003
Standards Action
Generalized PIDs (G-PID) RFC 3471, RFC 4328
0-31743: Standards Action.
31744-32767: Assigned Temporarily for Experimental Usage.
32768-65535: Standards Action.
Generalized SCSI (Switching Capability Specific Information) TLV Types RFC 8258
Specification Required (Expert: Lou Berger, Vishnu Beeram)
Grid Subregistry RFC 6205
Standards Action
Hierarchy Actions RFC 6107
Standards Action
Interface_ID Types RFC 3471
IETF Review or Specification Required (Expert: Unassigned)
LSP Encoding Types RFC 3471, RFC 4328
0-239: Standards Action.
240-255: Assigned temporarily for Experimental Usage.
OTN Signal Type RFC 7139, RFC 7892
0-255: Standards Action.
0-255: Specification Required.
(Expert: Daniele Ceccarelli, Fatai Zhang)
Special Purpose Generalized Label Values RFC 8359
Standards Action
Switching Types RFC 3471, RFC 4328, RFC 7074
Standards Action
GeneRic Autonomic Signaling Protocol (GRASP) Parameters
GRASP Messages and Options RFC 8990
Standards Action
GRASP Objective Names RFC 8990
Specification Required (Expert: Michael Richardson)
Generic Routing Encapsulation (GRE) Parameters
GRE Protocol Types RFC 2784
Need to go to IEEE
GRE Version Numbers RFC 2784
IETF Review
Generic Security Service Application Program Interface (GSSAPI)/Kerberos/Simple Authentication and Security Layer (SASL) Service Names
GSSAPI/Kerberos/SASL Service Names RFC 2743
Specification Required (Expert: Unassigned)
Generic Security Service Application Program Interface Parameters
GSS-API URN Parameters RFC 7056
IETF Review or Expert Review (Expert: Unassigned)
Geolocation Policy
Geolocation Policy Location Profile Names RFC 6772
Specification Required (Expert: Unassigned)
Geopriv HTTP Enabled Location Delivery (HELD) Parameters
HELD Error Codes RFC 5985
Standards Action
Geopriv Identifiers
Geopriv Identifiers RFC 7035
IETF Review
Geopriv Location Object Registries
Method Tokens RFC 4119
First Come First Served
PIDF-LO Civic Address Considerations Registry RFC 5774
Expert Review
XML Namespaces for 'provided-by' elements for use with PIDF-LO objects RFC 4119
Expert Review (Expert: Primary: Allison Mankin, Secondary: Jon Peterson)
Geopriv Location Type Registries
Civic Address Types (CAtypes) RFC 4776, RFC 6848
Type=A: IETF Review.
Type=B: Expert Review.
(Expert: Martin Thomson)
Location Types RFC 4589
Expert Review (Expert: Martin Thomson)
Relative Location Parameters RFC 7035
IETF Review
Global Navigation Satellite System (GNSS)
Global Navigation Satellite System (GNSS) Types RFC 7105
Specification Required (Expert: Unassigned)
Global Switch Management Protocol version 3 (GSMPv3) Adaptation Type Name Space
Adaptation Types RFC 3292
0x000-0x2FF: IETF Review.
0x300-0xFFF: First Come First Served.
Global Switch Management Protocol version 3 (GSMPv3) Event Flag Name Space
Event Flags RFC 3292
Expert Review (Expert: Stefaan De Cnodder, Avri Doria)
Global Switch Management Protocol version 3 (GSMPv3) Failure Response Message Name Space
Failure Response Message Names RFC 3292
0-59: IETF Review.
60-79: Reserved for Vendor Private Extensions.
80-127: IETF Review.
128-159: Reserved for Vendor Private Extensions.
160-255: IETF Review.
Global Switch Management Protocol version 3 (GSMPv3) Label Type Name Space
Label Type Names RFC 3292
0x000-0xAFF: IETF Review.
0xB00-0xEFF: RFC Required.
0xF00-0xFFF: Reserved for vendor private use.
Global Switch Management Protocol version 3 (GSMPv3) Message Type Name Space
Message Types RFC 3292
0-99: IETF Review.
100-199: RFC Required.
200-249: Intended for Abstract and Resource Model Extension Messages.
250-255: Reserved for vendor private use.
Global Switch Management Protocol version 3 (GSMPv3) Model Type Name Space
Model Type Names RFC 3292
0: IETF Review.
1-200: RFC Required.
201-255: Reserved for vendor private use.
Global Switch Management Protocol version 3 (GSMPv3) Port Type Name Space
Port Type Names RFC 3292
0-127: IETF Review.
128-255: RFC Required or Specification Required.
(Expert: Unassigned)
Global Switch Management Protocol version 3 (GSMPv3) Result Type Name Space
Result Type Names RFC 3292
Expert Review (Expert: Stefaan De Cnodder, Avri Doria)
Global Switch Management Protocol version 3 (GSMPv3) Service ID Name Space
Service ID Names RFC 3292
0-1023: IETF Review.
1024-65535: RFC Required.
Global Switch Management Protocol version 3 (GSMPv3) Traffic Control Name Space
Traffic Control Flags RFC 3292
Expert Review (Expert: Stefaan De Cnodder, Avri Doria)
Global Switched Telephone Network (GSTN) Address Element Extensions in Email Services
Qual2-Label RFC 2846
Specification Required (Expert: Unassigned)
Qualif-Type 1 RFC 2846, RFC 3191
Specification Required (Expert: Unassigned)
Service Selector RFC 2846, RFC 3191
Specification Required (Expert: Unassigned)
GMPLS Routing Parameters for WSON
Types for Subfields of WSON Resource Block Information Registry RFC 7581
Standards Action
Grant Negotiation and Authorization Protocol (GNAP)
GNAP Access Token Flags RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Assertion Formats RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Authorization Server Discovery Fields RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Client Instance Display Fields RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Client Instance Fields RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Error Codes RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Grant Request Parameters RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Grant Response Parameters RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Interaction Finish Methods RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Interaction Hints RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Interaction Mode Responses RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Interaction Start Modes RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Key Formats RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Key Proofing Methods RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Resource Set Registration Request Parameters Internet Draft draft-ietf-gnap-resource-servers-09
Expert Review (Expert: Unassigned)
GNAP Resource Set Registration Response Parameters Internet Draft draft-ietf-gnap-resource-servers-09
Expert Review (Expert: Unassigned)
GNAP RS-Facing Discovery Document Fields Internet Draft draft-ietf-gnap-resource-servers-09
Expert Review (Expert: Unassigned)
GNAP RS-Facing Error Codes Internet Draft draft-ietf-gnap-resource-servers-09
Specification Required (Expert: Unassigned)
GNAP Subject Information Request Fields RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Subject Information Response Fields RFC 9635
Specification Required (Expert: Justin Richer, Joseph Salowey, Sudesha Shetty)
GNAP Token Formats Internet Draft draft-ietf-gnap-resource-servers-09
Specification Required (Expert: Unassigned)
GNAP Token Introspection Request Internet Draft draft-ietf-gnap-resource-servers-09
Specification Required (Expert: Unassigned)
GNAP Token Introspection Response Internet Draft draft-ietf-gnap-resource-servers-09
Specification Required (Expert: Unassigned)
Group Domain of Interpretation (GDOI) Payloads
GAP Payload Policy Attributes RFC 6407
Standards Action
GDOI DOI Exchange Types RFC 8263
Specification Required (Expert: Brian Weis)
GDOI ID Payload Type Values RFC 3547
Standards Action
GDOI SA TEK Attributes RFC 8052
Expert Review (Expert: Brian Weis, Tero Kivinen)
ID Types RFC 8052
Expert Review (Expert: Brian Weis, Tero Kivinen)
IEC 62351-9 Authentication Values RFC 8052
Expert Review (Expert: Brian Weis, Tero Kivinen)
IEC 62351-9 Confidentiality Values RFC 8052
Expert Review (Expert: Brian Weis, Tero Kivinen)
Key Download Type Values RFC 3547
Standards Action
SA KEK Payload Values
SA TEK Payload Values
Group Secure Association Group Management Protocol (GSAKMP) Parameters
GSAKMP Acknowledgment Types RFC 4535
Standards Action
GSAKMP Certificate Types RFC 4535
Expert Review (Expert: Unassigned)
GSAKMP Cryptographic Key Types RFC 4535
Expert Review (Expert: Unassigned)
GSAKMP Exchange Types RFC 4535
Standards Action
GSAKMP Group Identification Types RFC 4535
Standards Action
GSAKMP Identification Classification RFC 4535
Standards Action
GSAKMP Identification Types RFC 4535
Expert Review (Expert: Unassigned)
GSAKMP Key Creation Types RFC 4535
Expert Review (Expert: Unassigned)
GSAKMP Key Download Data Item Types RFC 4535
Standards Action
GSAKMP Mechanism Types RFC 4535
Standards Action
GSAKMP Nonce Hash Types RFC 4535
Expert Review (Expert: Unassigned)
GSAKMP Nonce Types RFC 4535
Standards Action
GSAKMP Notification Types RFC 4535
Standards Action
GSAKMP Payload Types RFC 4535
Standards Action
GSAKMP Policy Token Types RFC 4535
Standards Action
GSAKMP Rekey Event Types RFC 4535
Standards Action
GSAKMP Signature Types RFC 4535
Expert Review (Expert: Unassigned)
H
Hash Algorithms for HTTP Digest Fields
Hash Algorithms for HTTP Digest Fields RFC 9530
Specification Required (Expert: Roberto Polli (primary), Lucas Pardue (secondary))
Hash Function Textual Names
Hash Function Textual Names RFC 8122
Standards Action
Hash-Based Signatures
Leighton-Micali Signatures (LMS) RFC 8554
0x00000005-0xDDDDDDDC: Specification Required.
0xDDDDDDDD-0xFFFFFFFF: Private Use.
(Expert: David McGrew, Scott Fluhrer)
LM-OTS Signatures RFC 8554
0x00000001-0xDDDDDDDC: Specification Required.
0xDDDDDDDD-0xFFFFFFFF: Private Use.
(Expert: David McGrew, Scott Fluhrer)
WOTS+ Signatures RFC 8391
Specification Required (Expert: Andreas Huelsing, Stefan-Lukas Gazdag)
XMSS Signatures RFC 8391
Specification Required (Expert: Andreas Huelsing, Stefan-Lukas Gazdag)
XMSS^MT Signatures RFC 8391
Specification Required (Expert: Andreas Huelsing, Stefan-Lukas Gazdag)
Host Identity Protocol (HIP) Parameters
DI-Types RFC 7401
IETF Review
ESP Transform Suite IDs RFC 7402
IETF Review
Group IDs RFC 7401
IETF Review
HI Algorithm RFC 7401
IETF Review
HIP Certificate Types RFC 8002
IETF Review
HIP Cipher ID RFC 7401
IETF Review
HIP NAT Traversal Modes RFC 5770
IETF Review
HIP Transport Modes RFC 6261
IETF Review or IESG Approval
HIP Version RFC 7401
IETF Review
HIP Via Flags RFC 6028
IETF Review or IESG Approval
HIT Suite ID RFC 7401
IETF Review
Notify Message Types RFC 7401
1-50: IETF Review.
51-8191: Specification Required.
8192-16383: Reserved for Private Use.
16384-40959: Specification Required.
40960-65535: Reserved for Private Use.
(Expert: Robert Moskowitz, Jeff Ahrenholz)
Packet Types RFC 7401
IETF Review
Parameter Types RFC 7401
0-1023: IETF Review.
1024-32767: Specification Required.
32768-49151: Reserved for Private Use.
49152-61439: Specification Required.
61440-65535: IETF Review.
(Expert: Robert Moskowitz, Jeff Ahrenholz)
Registration Failure Types RFC 8003
0-200: IETF Review.
201-255: Reserved for Private Use.
Registration Types RFC 8003
0-200: IETF Review.
201-255: Reserved for Private Use.
Suite IDs RFC 5201
Registry closed per RFC 7401
HTTP Message Signature
HTTP Signature Algorithms RFC 9421
Specification Required (Expert: Justin Richer, Manu Sporny)
HTTP Signature Component Parameters RFC 9421
Expert Review (Expert: Justin Richer, Manu Sporny)
HTTP Signature Derived Component Names RFC 9421
Expert Review (Expert: Justin Richer, Manu Sporny)
HTTP Signature Metadata Parameters RFC 9421
Expert Review (Expert: Justin Richer, Manu Sporny)
HTTP Origin-Bound Authentication (HOBA) Parameters
HOBA Device Identifier Types RFC 7486
Specification Required (Expert: Unassigned)
HOBA Key Identifier Types RFC 7486
Specification Required (Expert: Unassigned)
HOBA Signature Algorithms RFC 7486
Specification Required (Expert: Unassigned)
Hybrid Public Key Encryption (HPKE)
HPKE AEAD Identifiers RFC 9180
Specification Required (Expert: Christopher Wood, Richard Barnes)
HPKE KDF Identifiers RFC 9180
Specification Required (Expert: Christopher Wood, Richard Barnes)
HPKE KEM Identifiers RFC 9180
Specification Required (Expert: Christopher Wood, Richard Barnes)
Hypertext Transfer Protocol (HTTP) Alt-Svc Parameter Registry
HTTP Alt-Svc Parameter Registry RFC 7838
Expert Review (Expert: Unassigned)
Hypertext Transfer Protocol (HTTP) Authentication Control Parameters
HTTP Authentication Control Parameters RFC 8053
Specification Required (Expert: Rifaat Shekh-Yusef, Yutaka Oiwa)
HTTP Mutual Authentication Host Validation Methods RFC 8120
Expert Review (Expert: Rifaat Shekh-Yusef, Yutaka Oiwa)
Hypertext Transfer Protocol (HTTP) Authentication Scheme Registry
HTTP Authentication Schemes RFC 9110
IETF Review
HTTP Mutual Authentication Algorithms RFC 8120
Expert Review (Expert: Rifaat Shekh-Yusef, Yutaka Oiwa)
Hypertext Transfer Protocol (HTTP) Cache Directive Registry
HTTP Cache Directive Registry RFC 9111
IETF Review
Hypertext Transfer Protocol (HTTP) Cache-Status
HTTP Cache-Status RFC 9211
Expert Review (Expert: Mark Nottingham)
Hypertext Transfer Protocol (HTTP) Digest Algorithm Values
Hash Algorithms for HTTP Digest Authentication RFC 7616
Specification Required (Expert: Unassigned)
HTTP Digest Algorithm Values RFC 3230
RFC Required or Specification Required (Expert: James Manger)
Hypertext Transfer Protocol (HTTP) Field Name Registry
Hypertext Transfer Protocol (HTTP) Field Name Registry RFC 9110, RFC 9651
Specification Required for Permanent registrations, Expert Review for Provisional registrations. (Expert: Mark Nottingham, Roy Fielding)
Hypertext Transfer Protocol (HTTP) Method Registry
HTTP Method Registry RFC 9110
IETF Review
Hypertext Transfer Protocol (HTTP) Parameters
HTTP Content Coding Registry RFC 9110
IETF Review
HTTP Forwarded Parameters RFC 7239
IETF Review
HTTP Preferences RFC 7240
Specification Required (Expert: Julian Reschke)
HTTP Range Unit Registry RFC 9110
IETF Review
HTTP Transfer Coding Registry RFC 9112
IETF Review
Hypertext Transfer Protocol (HTTP) Priority
HTTP Priority RFC 9218
Key length of one: Specification Required.
Key length greater than one: Expert Review.
(Expert: Lucas Pardue, Kazuho Oku)
Hypertext Transfer Protocol (HTTP) Problem Types
HTTP Problem Types RFC 9457
Specification Required (Expert: Mark Nottingham, Sanjay Dalal)
Hypertext Transfer Protocol (HTTP) Proxy-Status
HTTP Proxy Error Types RFC 9209
Expert Review (Expert: Mark Nottingham)
HTTP Proxy-Status Parameters RFC 9209
Expert Review (Expert: Mark Nottingham)
Hypertext Transfer Protocol (HTTP) Status Code Registry
HTTP Status Codes RFC 9110
IETF Review
Hypertext Transfer Protocol (HTTP) Upgrade Token Registry
HTTP Upgrade Tokens RFC 9110
First Come First Served
Hypertext Transfer Protocol (HTTP) Warn Codes
HTTP Warn Codes RFC 7234
IETF Review
Hypertext Transfer Protocol version 2 (HTTP/2) Parameters
HTTP/2 Error Code RFC 9113
Expert Review (Expert: Martin Thomson (primary), Julian Reschke (secondary))
HTTP/2 Frame Type RFC 9113
IETF Review or IESG Approval
HTTP/2 Settings RFC 9113
Expert Review (Expert: Martin Thomson (primary), Julian Reschke (secondary))
Hypertext Transfer Protocol version 3 (HTTP/3)
HTTP/3 Error Codes RFC 9114
provisional: Expert Review.
provisional registration date field update: First Come First Served.
permanent, 0x00-0x3f: Standards Action or IESG Approval.
permanent, greater than 0x3f: Specification Required.
values 0x1f * N + 0x21 (for non-negative integer values of N): Reserved.
first unassigned codepoint: Standards Action.
(Expert: Mike Bishop, Alan Frindell)
HTTP/3 Frame Types RFC 9114
provisional: Expert Review.
provisional registration date field update: First Come First Served.
permanent, 0x00-0x3f: Standards Action or IESG Approval.
permanent, greater than 0x3f: Specification Required.
values 0x1f * N + 0x21 (for non-negative integer values of N): Reserved.
first unassigned codepoint: Standards Action.
(Expert: Mike Bishop, Alan Frindell)
HTTP/3 Settings RFC 9114
provisional: Expert Review.
provisional registration date field update: First Come First Served.
permanent, 0x00-0x3f: Standards Action or IESG Approval.
permanent, greater than 0x3f: Specification Required.
values 0x1f * N + 0x21 (for non-negative integer values of N): Reserved.
first unassigned codepoint: Standards Action.
(Expert: Mike Bishop, Alan Frindell)
HTTP/3 Stream Types RFC 9114
provisional: Expert Review.
provisional registration date field update: First Come First Served.
permanent, 0x00-0x3f: Standards Action or IESG Approval.
permanent, greater than 0x3f: Specification Required.
values 0x1f * N + 0x21 (for non-negative integer values of N): Reserved.
first unassigned codepoint: Standards Action.
(Expert: Mike Bishop, Alan Frindell)
I
IANA OUI Ethernet Numbers
IANA Link Layer Discovery Protocol (LLDP) TLV Subtypes RFC 8520, RFC 9542
Expert Review (Expert: Eliot Lear, Dan Romascanu)
IANA MAC ADDRESS BLOCK RFC 9542
See RFC 9542. (Expert: Donald Eastlake (primary), Juan Carlos Zuniga (secondary))
SNAP Protocol Numbers RFC 9542
Expert Review (Expert: Donald Eastlake (primary), Juan Carlos Zuniga (secondary))
The CFxxxx Series
IANA-Maintained MIBs
IANA-ADDRESS-FAMILY-NUMBERS-MIB RFC 2677
IANA-BFD-TC-STD-MIB RFC 7330
IETF Review
IANA-CHARSET-MIB RFC 3808
See Character Sets
IANA-ENERGY-RELATION-MIB RFC 7461
Specification Required (Expert: Unassigned)
IANA-ENTITY-MIB RFC 6933
Expert Review (Expert: Andy Bierman (primary), Jürgen Schönwälder (secondary))
IANA-FINISHER-MIB RFC 3806
Expert Review (Expert: Ira McDonald, Michael Sweet)
IANA-GMPLS-TC-MIB RFC 4802
See individual GMPLS registry procedures
IANA-IPPM-METRICS-REGISTRY-MIB RFC 4148, RFC 6248
This module has been designated Obsolete. The registry will no longer be updated, and the current contents will be maintained as-is.
IANA-ITU-ALARM-TC-MIB RFC 3877
Expert Review (Expert: Unassigned)
IANA-LANGUAGE-MIB RFC 3165
Expert Review (Expert: Juergen Schoenwaelder, David Levi)
IANA-MALLOC-MIB RFC 3559
RFC or designated expert review (Expert: Dave Thaler)
IANA-MAU-MIB RFC 4836
Expert Review (Expert: Marek Hajduczenia, Operations and Management Area Directors (backup))
IANA-POWER-STATE-SET-MIB RFC 7460
See https://www.iana.org/assignments/power-state-sets
IANA-PRINTER-MIB RFC 3805
Expert Review or RFC Required (Expert: Ira McDonald, Michael Sweet)
IANA-RTPROTO-MIB RFC 2932
RFC or Expert Review (Expert: Dave Thaler)
IANA-SMF-MIB RFC 7367
IANAsmfOpModeIdTC: First Come First Served. IANAsmfRssaIdTC: 1-127, Standards Action; 128-239, Reserved for Private or Local Use; 240-255, Experimental RFC.
IANA-STORAGE-MEDIA-TYPE-MIB RFC 7666
Expert Review (Expert: Unassigned)
IANAifType-MIB RFC 2863, RFC 8892
This is one of the available formats of the Interface Types (ifType) and Tunnel Types (tunnelType) registries. (Expert: Dave Thaler (primary), Dan Romascanu (secondary))
IANAolsrv2LinkMetricType-MIB RFC 7184
Expert Review (Expert: Unassigned)
IANATn3270eTC-MIB RFC 2561
Working Group Review (see DESCRIPTION clause associated with the MODULE-IDENTITY statement)
iCalendar Element Registries
Actions RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Calendar User Types RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Classifications RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Components RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Display Types RFC 7986
Expert Review with RFC Required (Expert: Unassigned)
Feature Types RFC 7986
Expert Review with RFC Required (Expert: Unassigned)
Free/Busy Time Types RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Methods RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Parameters RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Participant Types RFC 9073
Expert Review (Expert: Ken Murchison, Michael Douglass)
Participation Roles RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Participation Statuses RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Properties RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Proximity Values RFC 9074
Expert Review with RFC Required (Expert: Ken Murchison, Michael Douglass)
Relationship Types RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
REQUEST-STATUS Values RFC 5546
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
Resource Types RFC 9073
Expert Review (Expert: Ken Murchison, Michael Douglass)
Schedule Agent Values Registry RFC 6638
Expert Review with RFC Required (Expert: Unassigned)
Schedule Force Send Values Registry RFC 6638
Expert Review with RFC Required (Expert: Unassigned)
Value Data Types RFC 5545
Expert Review with RFC Required (Expert: Bernard Desruisseaux, Ken Murchison, Mike Douglass)
IDNA Rules and Derived Property Values
IDNA Contextual Rules RFC 5892, RFC 6452, RFC 8753, RFC 9233
IETF Review
IDNA Derived Properties RFC 5892, RFC 6452, RFC 8753, RFC 9233
Expert Review (Expert: Patrik Faltstrom (team lead), Takahiro Nemoto, Peter Saint-Andre)
IEEE 802 Numbers
Ethertypes RFC 9542
Not assigned by IANA. Per RFC 9542, updates to this registry are coordinated with the expert. (Expert: Donald Eastlake (primary), Juan Carlos Zuniga (secondary))
Logical Link Control (LLC) Numbers
Not assigned by IANA. Per RFC 9542, updates to this registry are coordinated with the expert. (Expert: Donald Eastlake (primary), Juan Carlos Zuniga (secondary))
Organizationally Unique Identifiers
Not assigned by IANA. Per RFC 9542, updates to this registry are coordinated with the expert. (Expert: Donald Eastlake (primary), Juan Carlos Zuniga (secondary))
IEEE Std 802.15.4 IETF IE Subtype IDs
IEEE Std 802.15.4 IETF IE Subtype IDs RFC 8137
Expert Review (Expert: Tero Kivinen, Pat Kinney)
IETF XML Registry
ns RFC 3688
Specification Required (Expert: Tim Bray, Martin Thomson)
publicid RFC 3688
Specification Required (Expert: Tim Bray, Martin Thomson)
rdfschema
Specification Required (Expert: Tim Bray, Martin Thomson)
schema RFC 3688, RFC 6685
Specification Required (Expert: Tim Bray and Martin Thomson for non-IODEF schemas, Kathleen Moriarty for IODEF schemas)
In Situ OAM (IOAM)
IOAM DEX Extension-Flags RFC 9326
IETF Review
IOAM DEX Flags RFC 9326
IETF Review
IOAM E2E-Type RFC 9197
IETF Review
IOAM Namespace-ID RFC 9197
0x0000: Expert Review.
0x0001-0x7FFF: Private Use.
0x8000-0xFFFF: Expert Review.
(Expert: Unassigned)
IOAM Option-Type RFC 9197
IETF Review
IOAM POT-Flags RFC 9197
IETF Review
IOAM POT-Type RFC 9197
IETF Review
IOAM Trace-Flags RFC 9197
IETF Review
IOAM Trace-Type RFC 9197
IETF Review
In Situ OAM (IOAM) Capabilities
IOAM SoP Capability Internet Draft draft-ietf-ippm-ioam-conf-state-10
IETF Review
IOAM TSF Capability Internet Draft draft-ietf-ippm-ioam-conf-state-10
IETF Review
Incident Object Description Exchange Format (IODEF)
Structured Cybersecurity Information (SCI) Specifications RFC 7203
Specification Required (Expert: Unassigned)
Incident Object Description Exchange Format v2 (IODEF)
Address-category RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
BulkObservable-type RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
BusinessImpact-severity RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
BusinessImpact-type RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Confidence-rating RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Contact-role RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Contact-type RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Counter-type RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Counter-unit RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Discovery-source RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
DomainData-domain-status RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
DomainData-system-status RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Email-type RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Expectation-action RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
ExtensionType-dtype RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
HashData-scope RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Incident-purpose RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Incident-status RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
IndicatorExpression-operator RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Key-registryaction RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
NodeRole-category RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
PostalAddress-type RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
RecordPattern-offsetunit RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
RecordPattern-type RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
RegistryHandle-registry RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Restriction RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
SoftwareReference-dtype RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
SoftwareReference-spec-id RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
System-category RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
System-ownership RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
SystemImpact-type RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Telephone-type RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
TimeImpact-duration RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
TimeImpact-metric RFC 7970
Expert Review (Expert: Roman Danyliw, Takeshi Takahashi)
Instance Manipulation Values
Instance Manipulation Values RFC 3229
Specification Required (Expert: Unassigned)
Instant Message Disposition Notification (IMDN) Headers
IMDN Headers RFC 5438
Specification Required (Expert: Unassigned)
Instant Messaging SRV Protocol Label Registry
Instant Messaging SRV Protocol Label Registry RFC 3861
Specification Required (Expert: Unassigned)
Integrated Services Parameters
Compression Hints RFC 3006
IETF Review
Parameter Names RFC 2216
1-127: Parameters defined in RFC 2215.
128-254: Parameters defined by author of service specification document (Service and Data Element Naming).
Service Names RFC 2216
2-127: RFC Required.
128-254: Experimental use.
Inter-Asterisk eXchange (IAX) Parameters
IAX Authentication Methods RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Calling Presentation RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Calling Type of Number RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Cause Codes RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Control Frame Subclass RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Control Frames RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Dialplan Status Flags RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Encryption Methods RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Frame Types RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX HTML Command Subclasses RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Information Elements RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Media Formats RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Meta Commands RFC 5457
Expert Review (Expert: Cullen Jennings)
IAX Transit Network Identification Plan RFC 5457
Expert Review
IAX Type of Network RFC 5457
Expert Review (Expert: Cullen Jennings)
Interactive Connectivity Establishment (ICE)
ICE Options RFC 8839
Specification Required (Expert: Ari Keränen)
ICE Transport Protocols RFC 6544
IETF Review or IESG Approval
Interface Parameters
Interface Types (ifType) RFC 1213, RFC 2863, RFC 7224, RFC 8892
Expert Review (Expert: Dave Thaler (primary), Dan Romascanu (secondary))
Transmission Number Values RFC 1213, RFC 8892
Specification Required (Expert: Dave Thaler (primary), Dan Romascanu (secondary))
Tunnel Types (tunnelType) RFC 4087, RFC 8675, RFC 8892
Expert Review (Expert: Dave Thaler (primary), Dan Romascanu (secondary))
Interior Gateway Protocol (IGP) Parameters
IGP Algorithm Type For Computing Flooding Topology Internet Draft draft-ietf-lsr-dynamic-flooding-18
Expert Review (Expert: Unassigned)
IGP Algorithm Types RFC 8665
Standards Action
IGP Flexible Algorithm Definition Flags RFC 9350
Standards Action
IGP Metric-Type RFC 9350
Standards Action
IGP MSD-Types RFC 8491, Internet Draft draft-ietf-mpls-msd-yang-12
Expert Review (Expert: Uma Chunduri, Jeff Tantsura)
Link Attribute Application Identifiers RFC 9479
Expert Review (Expert: Les Ginsberg, Chris Hopps)
Path Computation Element (PCE) Capability Flags RFC 9353
IETF Review
PCE Discovery (PCED) Sub-TLV Type Indicators RFC 9353
Standards Action
Internet - Xerox Network System (XNS) Protocol Mappings
Internet - Xerox Network System (XNS) Protocol Mappings
Internet Control Message Protocol (ICMP) Parameters
Code Fields RFC 2780
ICMP Extension Object Classes and Class Sub-types RFC 4884
0-246: First Come First Served.
247-255: Private Use.
ICMP Type Numbers RFC 2780
IESG Approval or Standards Action
Internet Control Message Protocol version 6 (ICMPv6) Parameters
6LoWPAN Capability Bits RFC 7400
IETF Review or IESG Approval
Address Registration Option Flags RFC 8505
IETF Review or IESG Approval
Address Registration Option I-Field RFC 8505
IETF Review or IESG Approval
Address Registration Option Status Values RFC 6775, RFC 9010
Standards Action
Certificate option (Type 16) Cert Type field RFC 3971
Standards Action
Crypto-Types RFC 8928
Specification Required or IESG Approval (Expert: Pascal Thubert, Mohit Sethi)
EDAR Message Flags Internet Draft draft-ietf-6lo-multicast-registration-19
IETF Review or IESG Approval
FMIPv6 Message Types (Value 154) RFC 5568
RFC Required
ICMPv6 "Code" Fields RFC 4443
ICMPv6 "type" Numbers RFC 4443
0-127 (Error messages): IETF Review.
128-255 (Informational messages): IETF Review.
IPv6 ND Router Advertisement Flags RFC 5175
Standards Action or IESG Approval
IPv6 Neighbor Discovery Option Formats RFC 4861
RFC Required
IPv6 Neighbor Discovery Prefix Information Option Flags RFC 8425
Standards Action
Option-Code for Handover Assist Information Option (Type 29) RFC 5271
Standards Action or IESG Approval
Option-Code for Mobile Node Identifier Option (Type 30) RFC 5271
Standards Action or IESG Approval
P-Field Values Internet Draft draft-ietf-6lo-multicast-registration-19
Standards Action
PvD Option Flags RFC 8801
Standards Action
Qtypes RFC 4620
IETF Review
Trust Anchor option (Type 15) Name Type field RFC 3971, RFC 6495
Standards Action or IESG Approval
Internet Date/Time Format
Timestamp Suffix Tag Keys RFC 9557
Permanent: Specification Required.
Provisional: Expert Review.
(Expert: Ujjwal Sharma, Bron Gondwana)
Internet Group Management Protocol (IGMP) Type Numbers
"Code" Fields Internet Draft draft-ietf-pim-3228bis-07
Standards Action
IGMP Type Numbers Internet Draft draft-ietf-pim-3228bis-07
Standards Action
IGMP/MLD Extension Types RFC 9279
0-65533: IETF Review.
65534-65535: Experimental Use.
IGMP/MLD Query Message Flags Internet Draft draft-ietf-pim-3228bis-07
Standards Action
IGMP/MLD Report Message Flags Internet Draft draft-ietf-pim-3228bis-07
Standards Action
Internet Key Exchange (IKE) Attributes
Additional Exchanges Defined-- XCHG values RFC 2409, RFC 9395
Registry closed
Attribute Classes RFC 2409, RFC 9395
Registry closed
Encryption Algorithm Class Values (Value 1) RFC 2409, RFC 9395
Registry closed
Exchange Type RFC 2408, RFC 9395
Registry closed
Group Description (Value 4) RFC 2409, RFC 9395
Registry closed
Group Type (Value 5) RFC 2409, RFC 9395
Registry closed
Hash Algorithm (Value 2) RFC 2409, RFC 9395
Registry closed
IPSEC Authentication Methods (Value 3) RFC 2409, RFC 9395
Registry closed
ISAKMP Domain of Interpretation (DOI) RFC 2408, RFC 9395
Registry closed
Life Type (Value 11) RFC 2409, RFC 9395
Registry closed
Next Payload Types RFC 2408, RFC 9395
Registry closed
Notify Message Types RFC 2408, RFC 9395
Notify Messages - Error Types (1-8191) RFC 2408, RFC 9395
Registry closed
PRF (Value 13) RFC 2409, RFC 9395
Registry closed
Internet Key Exchange Version 2 (IKEv2) Parameters
IKEv2 Authentication Method RFC 7296
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Certificate Encodings RFC 7296
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Configuration Payload Attribute Types RFC 7296
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Configuration Payload CFG Types RFC 7296
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Exchange Types RFC 7296
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Gateway Identity Types RFC 5685
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Hash Algorithms RFC 7427
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Identification Payload ID Types RFC 7296
Expert Review (Expert: Tero Kivinen)
IKEv2 Notification IPCOMP Transform IDs (Value 16387) RFC 7296
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Notify Message Error Types RFC 7296
0-8191: Expert Review.
8192-16383: Private use.
(Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Notify Message Status Types RFC 7296
16384-40959: Expert Review.
40960-65535: Private use.
(Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Payload Types RFC 7296
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Post-quantum Preshared Key ID Types RFC 8784
1-127: Expert Review.
128-255: Private Use.
(Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Secure Password Methods RFC 6467
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Security Protocol Identifiers RFC 7296
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
IKEv2 Traffic Selector Types RFC 7296
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
ROHC Attribute Types RFC 5857
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
Transform Type Values RFC 7296, RFC 9370
Expert Review (Expert: Tero Kivinen, Valery Smyslov)
Internet Message Access Protocol (IMAP) Capabilities
IMAP and JMAP Keywords RFC 5788, RFC 8621
Expert Review (Expert: Arnt Gulbrandsen, Barry Leiba)
IMAP ANNOTATE Extension Attributes RFC 5257
Standards Track or IESG-Approved Experimental RFC
IMAP ANNOTATE Extension Entries RFC 5257
Under vendor namespace: First Come First Served.
Not under vendor namespace: Standards Track or IESG-Approved Experimental RFC.
IMAP Capabilities RFC 3501, RFC 9051
IETF Review
IMAP Mailbox Name Attributes RFC 3501, RFC 8457, RFC 9051
IETF Review or Expert Review (Expert: Barry Leiba, Bron Gondwana)
IMAP METADATA Mailbox Entry Registry RFC 5464
Standards Track or IESG-Approved Experimental RFC
IMAP METADATA Server Entry Registry RFC 5464
Standards Track or IESG-Approved Experimental RFC
IMAP Quota Resource Types RFC 9208
Specification Required (Expert: Alexey Melnikov, Ken Murchison)
IMAP Response Codes RFC 5530
Expert Review (Expert: Arnt Gulbrandsen, Dave Cridland)
IMAP Threading Algorithms RFC 5256
Standards Track or IESG-Approved Experimental RFC
IMAP URLAUTH Access Identifiers and Prefixes RFC 5593
IETF Review
IMAP URLAUTH Authorization Mechanism Registry RFC 4467
Standards Track or IESG-Approved Experimental RFC
LIST-EXTENDED options RFC 5258
FCFS; IANA approval template in RFC 5258 section 9.3
LIST-EXTENDED response RFC 5258
IANA approval template in RFC 5258 section 9.3
Internet Message Store Events
Event Names RFC 5423
name starts wth "vnd."; intended for private use: First Come First Served.
name doesn't start with "vnd."; intended for interoperable use: IETF Review.
Event Parameters RFC 5423
name starts wth "vnd."; intended for private use: First Come First Served.
name doesn't start with "vnd."; intended for interoperable use: IETF Review.
Internet Open Trading Protocol (IOTP) Codes
Algorithm/Name RFC 2801
Expert Review (Expert: David Burdett)
Attribute/Content RFC 2801
RFC Required (Expert: David Burdett)
Brand/BrandId RFC 2801
First Come First Served (Expert: David Burdett)
CurrencyAmount/CurrCode RFC 2801
First Come First Served (Expert: David Burdett)
CurrencyAmount/CurrCodeType RFC 2801
Expert Review (Expert: David Burdett)
DeliveryData/DelivMethod RFC 2801
Expert Review (Expert: David Burdett)
PackagedContent/Content RFC 2801
Expert Review (Expert: David Burdett)
RelatedTo/RelationshipType RFC 2801
Expert Review (Expert: David Burdett)
Status/StatusType RFC 2801
RFC Required (Expert: David Burdett)
TradingRole/Trading Role RFC 2801
RFC Required (Expert: David Burdett)
TransId/IotpTransType RFC 2801
RFC Required (Expert: David Burdett)
Internet Printing Protocol (IPP) Registrations
Attribute Group Tags RFC 8011
Specification Required (Expert: Ira McDonald, Michael Sweet)
Attribute Syntaxes RFC 8011
Specification Required (Expert: Ira McDonald, Michael Sweet)
Attributes RFC 8011
Expert Review (Expert: Ira McDonald, Michael Sweet)
Enum Attribute Values RFC 8011
type1: Specification Required.
type2: Expert Review.
(Expert: Ira McDonald, Michael Sweet)
Keyword Attribute Values RFC 8011
type1: Specification Required.
type2: Expert Review.
(Expert: Ira McDonald, Michael Sweet)
Objects RFC 8011
Specification Required (Expert: Ira McDonald, Michael Sweet)
Operations RFC 8011
Expert Review (Expert: Ira McDonald, Michael Sweet)
Out-of-Band Attribute Value Tags RFC 8011
Specification Required (Expert: Ira McDonald, Michael Sweet)
Status Codes RFC 8011
Expert Review (Expert: Ira McDonald, Michael Sweet)
Internet Protocol version 4 (IPv4) Address Space
Allocations made from the Current Recovered IPv4 Pool
Global Policy for Post Exhaustion IPv4 Allocation Mechanisms by the IANA (Ratified 6 May 2012)
Current Recovered IPv4 Pool
Global Policy for Post Exhaustion IPv4 Allocation Mechanisms by the IANA (Ratified 6 May 2012)
IANA IPv4 Address Space Registry RFC 7249
Allocations to RIRs are made in line with the Global Policy published at http://www.icann.org/en/resources/policy/global-addressing. All other assignments require IETF Review.
IANA IPv4 Special-Purpose Address Registry RFC 5736, RFC 6890, RFC 8190
IETF Review
Internet Protocol Version 4 (IPv4) Parameters
IP Option Numbers
Not defined
IP Time to Live Parameter
Not defined
IP TOS Parameters
Registrations no longer accepted
IPv4 Router Alert Option Values RFC 5350
IETF Review
Type-of-Service Values
Registrations no longer accepted
Internet Protocol Version 6 (IPv6) Anycast Addresses
IPv6 Anycast Addresses RFC 4291, RFC 2526
IESG Approval
IPv6 Anycast Subnet-Router Anycast Address RFC 4291
IESG Approval
Internet Protocol version 6 (IPv6) Global Unicast Allocations
IANA IPv6 Special-Purpose Address Registry RFC 4773, RFC 6890, RFC 8190
IETF Review
IPv6 Global Unicast Address Assignments RFC 7249
Allocations to RIRs are made in line with the Global Policy published at http://www.icann.org/en/resources/policy/global-addressing. All other assignments require IETF Review.
Internet Protocol Version 6 (IPv6) Parameters
Destination Options and Hop-by-Hop Options RFC 8200, RFC 2780, Internet Draft draft-ietf-6man-hbh-processing-20
IESG Approval, IETF Review or Standards Action
IPv6 Extension Header Types RFC 2780, RFC 5237, RFC 7045
Standards Action or IESG Approval
Next Header Types RFC 8200, RFC 2780, RFC 7045
Routing Types RFC 8200, RFC 5871
IETF Review or IESG Approval
RPL-option-TLV RFC 6553
IETF Review
Segment Routing Header Flags RFC 8754
IETF Review
Segment Routing Header TLVs RFC 8754
IETF Review
TaggerId Types RFC 6621
IETF Review
Internet Protocol Version 6 Address Space
Internet Protocol Version 6 Address Space
Internet Small Computer System Interface (iSCSI) Parameters
iSCSI Asynchronous Events RFC 7143
Standards Action
iSCSI authentication methods RFC 7143
IETF Review
iSCSI digests RFC 7143
IETF Review
iSCSI Login Response Status Codes RFC 7143
Standards Action
iSCSI Login/Text Keys RFC 7145, RFC 7143
IETF Review
iSCSI Opcodes RFC 7143
Standards Action to define the semantics of the opcode; Expert Review to select the specific opcode(s) (Expert: Unassigned)
iSCSI Protocol Level RFC 7144
Expert Review and Standards Action (Expert: Unassigned)
iSCSI Reject Reason Codes RFC 7143
Standards Action
iSCSI Task Management Function Codes RFC 7143
Standards Action
iSCSI Task Management Function Response Codes RFC 7144
Standards Action
iSER Opcodes RFC 7145
Standards Action
SRP_GROUP key values RFC 3723
Specification Required (Expert: Unassigned)
Internet Storage Name Service (iSNS) Parameters
Block Storage Protocols RFC 4171
Expert Review (by IPS WG Chairperson or by Designated Expert) (Expert: David Black)
Standard iSNS Attributes RFC 4171
IETF Review
Intrusion Detection Exchange Protocol (IDXP) Options
IDXP Options RFC 4767
Expert Review (Expert: Ben Feinstein)
Intrusion Detection Message Exchange Format (IDMEF) Parameters
Attribute Values RFC 4765
Specification Required (Expert: Unassigned)
Class and Attribute Names RFC 4765
IETF Review
IP Flow Information Export (IPFIX) Entities
IPFIX Information Element Data Types RFC 5610
Standards Action
IPFIX Information Element Semantics RFC 5610
Standards Action
IPFIX Information Element Units RFC 5610
Expert Review (Expert: IE Doctors (Andrew Feren, Brian Trammell, Nevil Brownlee, Paul Aitken))
IPFIX Information Elements RFC 7012, Internet Draft draft-ietf-opsawg-ipfix-fixes-12
Expert Review (Expert: IE Doctors (Andrew Feren, Brian Trammell, Nevil Brownlee, Paul Aitken))
IPFIX ipv6ExtensionHeaders Bits Internet Draft draft-ietf-opsawg-ipfix-tcpo-v6eh-18
Expert Review (Expert: Unassigned)
IPFIX Set IDs RFC 7011
Standards Action
IPFIX Structured Data Types Semantics RFC 6313
Standards Action
IPFIX Version Numbers RFC 7011
Standards Action
IP Multicast Traceroute Facility (Mtrace)
Mtrace2 Forwarding Codes RFC 8487
Specification Required (Expert: Unassigned)
Mtrace2 TLV Types RFC 8487
Specification Required (Expert: Unassigned)
IP Version Numbers
IP Version Numbers RFC 2780
Standards Action
IPS Protocol# (Protocol Number) Field
Protocol# (Protocol Number) Field RFC 3643
1-239: Standards Action.
240-255: Private Use.
IPSECKEY Resource Record Parameters
Algorithm Type Field RFC 4025, RFC 9373
IETF Review
Gateway Type Field RFC 4025
Standards Action
IPv4 Multicast Address Space Registry
AD-HOC Block I (224.0.2.0 - 224.0.255.255) RFC 5771
Expert Review, IESG Approval, or Standards Action (Expert: Stig Venaas)
AD-HOC Block II (224.3.0.0-224.4.255.255 (224.3/16, 224.4/16)) RFC 5771
Expert Review, IESG Approval, or Standards Action (Expert: Stig Venaas)
AD-HOC Block III (233.252.0.0-233.255.255.255 (233.252/14)) RFC 5771
Expert Review, IESG Approval, or Standards Action (Expert: Stig Venaas)
DIS Transient Groups 224.252.0.0-224.255.255.255 (224.252/14)) RFC 2365
(Expert: Stig Venaas)
GLOP Block RFC 3180
(Expert: Stig Venaas)
Internetwork Control Block (224.0.1.0 - 224.0.1.255 (224.0.1/24)) RFC 5771
Expert Review, IESG Approval, or Standards Action (Expert: Stig Venaas)
Local Network Control Block (224.0.0.0 - 224.0.0.255 (224.0.0/24)) RFC 5771
Expert Review, IESG Approval, or Standards Action (Expert: Stig Venaas)
Relative Addresses used with Scoped Multicast Addresses RFC 5771
(Expert: Stig Venaas)
RESERVED (224.1.0.0-224.1.255.255 (224.1/16)) RFC 5771
(Expert: Stig Venaas)
RESERVED (224.5.0.0-224.251.255.255 (251 /16s)) RFC 5771
(Expert: Stig Venaas)
RESERVED (225.0.0.0-231.255.255.255 (7 /8s)) RFC 5771
(Expert: Stig Venaas)
Scoped Multicast Ranges RFC 5771
(Expert: Stig Venaas)
SDP/SAP Block (224.2.0.0-224.2.255.255 (224.2/16)) RFC 5771
(Expert: Stig Venaas)
Source-Specific Multicast Block (232.0.0.0-232.255.255.255 (232/8)) RFC 5771
(Expert: Stig Venaas)
Unicast-Prefix-based IPv4 Multicast Addresses RFC 6034
(Expert: Stig Venaas)
IPv6 Low Power Personal Area Network Parameters
Critical 6LoWPAN Routing Header Type RFC 8138
RFC Required
Dispatch Type Field RFC 4944, RFC 8025
Specification Required (Expert: Carles Gomez, Shwetha Bhandari, Pascal Thubert (secondary expert))
Elective 6LoWPAN Routing Header Type RFC 8138
RFC Required
ESC Extension Types RFC 8066
Specification Required (Expert: Shwetha Bhandari)
LOWPAN_NHC Header Type RFC 6282
IETF Review
Short Address Fields RFC 4944
Specification Required (Expert: Carles Gomez)
IPv6 Multicast Address Space Registry
IPv6 Multicast Address Scopes RFC 7346
IETF Review (Expert: Stig Venaas)
Link-Local Scope Multicast Addresses RFC 3307
Expert Review (Expert: Stig Venaas)
Node-Local Scope Multicast Addresses RFC 4291, RFC 3307
Expert Review (Expert: Stig Venaas)
Site-Local Scope Multicast Addresses RFC 3307
Expert Review (Expert: Stig Venaas)
Unicast-based (Including SSM) Multicast Group IDs RFC 3307
Addresses in FF3X:0::/32 but not listed below are reserved for future SSM address use, but are currently invalid. FF3X:0:0:0:0:0:0:0-FF3X:0:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF (FF3X:0::/32) FF3X:0:0:0:0:0:4000:0-FF3X:0:0:0:0:0:7FFF:FFFF - Expert Review; see registry at https://www.iana.org/assignments/perm-mcast-groupids FF3X:0:0:0:0:0:8000:0-FF3X:0:0:0:0:0:FFFF:FFFF - Dynamically allocated by hosts when needed RFC 4607. (Expert: Stig Venaas)
Variable Scope Multicast Addresses RFC 3307
Expert Review (Expert: Stig Venaas)
IPv6 Over the TSCH Mode of IEEE 802.15.4 (6TiSCH)
6P CellOptions Bitmap RFC 8480
IETF Review or IESG Approval
6P Command Identifiers RFC 8480
IETF Review or IESG Approval
6P Message Types RFC 8480
IETF Review or IESG Approval
6P Return Codes RFC 8480
IETF Review or IESG Approval
6P Scheduling Function Identifiers RFC 8480
0-127: IETF Review or IESG Approval.
128-255: Expert Review.
(Expert: Xavi Vilajosana Guillen, Thomas Watteyne)
6P Version Numbers RFC 8480
IETF Review or IESG Approval
Constrained Join Protocol (CoJP) Key Usage RFC 9031
Integer values less than -65536: Private Use.
Integer values from -65536 to -257: Specification Required.
Integer values from -256 to 255: Standards Action.
Integer values from 256 to 65535: Specification Required.
Integer values greater than 65535: Expert Review.
(Expert: Mališa Vučinić, Michael Richardson)
Constrained Join Protocol (CoJP) Parameters RFC 9031
Integer values less than -65536: Private Use.
Integer values from -65536 to -257: Specification Required.
Integer values from -256 to 255: Standards Action.
Integer values from 256 to 65535: Specification Required.
Integer values greater than 65535: Expert Review.
(Expert: Mališa Vučinić, Michael Richardson)
Constrained Join Protocol (CoJP) Unsupported Configuration Codes RFC 9031
Integer values less than -65536: Private Use.
Integer values from -65536 to -257: Specification Required.
Integer values from -256 to 255: Standards Action.
Integer values from 256 to 65535: Specification Required.
Integer values greater than 65535: Expert Review.
(Expert: Mališa Vučinić, Michael Richardson)
IPv6 Router Alert Option Values
IPv6 Router Alert Option Values RFC 2711
IETF Review
IPv6 Top Level Aggregation Identifier Assignments
Sub-TLA Identifier Assignments RFC 4147
Registrations no longer accepted
TLA Identifier Assignments RFC 4147
Registrations no longer accepted
IS-IS
IS-IS Application Identifiers for Generic Information TLV RFC 6823
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Authentication Type Codes RFC 5304
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Bit Values for Flooding Parameters Flags Sub-TLV Internet Draft draft-ietf-lsr-isis-fast-flooding-11
Expert Review (Expert: Unassigned)
IS-IS Bit Values for Prefix Attribute Flags Sub-TLV RFC 7794
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Group Address Type Codes for GADDR-TLV RFC 7176
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Multi-Topology ID Values RFC 5120
0-3995: Expert Review.
3996-4095: Private Use.
(Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Neighbor Link-Attribute Bit Values RFC 5029, Internet Draft draft-ietf-lsr-dynamic-flooding-18, RFC 9650
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS PDU Registry RFC 7176
IETF Review
IS-IS SRv6 Adjacency SID Sub-TLVs Flags RFC 9352
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS SRv6 Capabilities Sub-TLV Flags RFC 9352
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS SRv6 End SID Sub-TLV Flags RFC 9352
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS SRv6 Locator TLV Flags RFC 9352
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-Sub-TLV Codepoints for Application-Specific Link Attributes RFC 9479
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-Sub-TLVs for BIER Info Sub-TLV RFC 8401
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-Sub-TLVs for Flexible Algorithm Definition Sub-TLV RFC 9350
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-Sub-TLVs for Flood Reflection Discovery Sub-TLV RFC 9377
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-Sub-TLVs for SRv6 Capabilities Sub-TLV RFC 9352
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-Sub-TLVs for SRv6 SID Sub-TLVs RFC 9352
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-TLVs for Application-Specific SRLG TLV RFC 9479
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-TLVs for Flooding Parameters TLV Internet Draft draft-ietf-lsr-isis-fast-flooding-11
Expert Review (Expert: Unassigned)
IS-IS Sub-TLVs for IS-IS Router CAPABILITY TLV RFC 7981
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-TLVs for MT-Capability TLV RFC 6329
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-TLVs for MT-Port-Cap-TLV RFC 7176
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-TLVs for Reverse Metric TLV RFC 8500
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-TLVs for Segment Identifier/Label Binding TLVs RFC 8667
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-TLVs for the Area Proxy TLV Internet Draft draft-ietf-lsr-isis-area-proxy-12
Expert Review with RFC Required (Expert: Unassigned)
IS-IS Sub-TLVs for TLVs Advertising Neighbor Information RFC 5305, RFC 5316, RFC 7370, RFC 8668
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Sub-TLVs for TLVs Advertising Prefix Reachability RFC 5305, RFC 7370, RFC 9352
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
IS-IS Top-Level TLV Codepoints RFC 3563, RFC 6233, RFC 7356, RFC 8918
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
LSP Flooding Scope Identifier Registry RFC 7356
Expert Review (Expert: Chris Hopps, Hannes Gredler, Les Ginsberg)
J
Java Message Service (JMS) URI Scheme Variants
JMS URI Scheme Variants RFC 6167
First Come First Served
JSCalendar
JSCalendar Enum Values RFC 8984
Expert Review (Expert: Robert Stepanek, Neil Jenkins, Michael Douglass)
JSCalendar Properties RFC 8984
Expert Review (Expert: Robert Stepanek, Neil Jenkins, Michael Douglass)
JSCalendar Types RFC 8984
Expert Review (Expert: Robert Stepanek, Neil Jenkins, Michael Douglass)
JSContact
JSContact Enum Values RFC 9553
Major version change required: Standards Action.
All other assignments: Specification Required.
(Expert: Michael Douglass, Mario Loffredo, Robert Stepanek)
JSContact Properties RFC 9553
Major version change required: Standards Action.
All other assignments: Specification Required.
(Expert: Michael Douglass, Mario Loffredo, Robert Stepanek)
JSContact Types RFC 9553
Major version change required: Standards Action.
All other assignments: Specification Required.
(Expert: Michael Douglass, Mario Loffredo, Robert Stepanek)
JSContact Version RFC 9553
Major version change required: Standards Action.
All other assignments: Specification Required.
(Expert: Michael Douglass, Mario Loffredo, Robert Stepanek)
JSON Meta Application Protocol (JMAP)
JMAP Capabilities RFC 8620
intended use field is “common" or “placeholder”: Specification Required.
all other values: Expert Review.
(Expert: Neil Jenkins, Chris Newman, Arnt Gulbrandsen, Joris Baum)
JMAP Data Types RFC 9404
Specification Required (Expert: Ken Murchison, Neil Jenkins, Arnt Gulbrandsen, Joris Baum)
JMAP Error Codes RFC 8620
Expert Review (Expert: Neil Jenkins, Chris Newman, Arnt Gulbrandsen, Joris Baum)
JSON Object Signing and Encryption (JOSE)
JSON Web Encryption Compression Algorithms RFC 7518
Specification Required (Expert: Sean Turner, Mike Jones)
JSON Web Key Elliptic Curve RFC 7518, RFC 7638
Specification Required (Expert: Sean Turner, Mike Jones)
JSON Web Key Operations RFC 7517
Specification Required (Expert: Sean Turner, Mike Jones)
JSON Web Key Parameters RFC 7517, RFC 7638
Specification Required (Expert: Sean Turner, Mike Jones)
JSON Web Key Set Parameters RFC 7517
Specification Required (Expert: Sean Turner, Mike Jones)
JSON Web Key Types RFC 7518, RFC 7638
Specification Required (Expert: Sean Turner, Mike Jones)
JSON Web Key Use RFC 7517
Specification Required (Expert: Sean Turner, Mike Jones)
JSON Web Signature and Encryption Algorithms RFC 7518
Specification Required (Expert: Sean Turner, Mike Jones)
JSON Web Signature and Encryption Header Parameters RFC 7515
Specification Required (Expert: Sean Turner, Mike Jones)
JSON Web Token (JWT)
JSON Web Token Claims RFC 7519
Specification Required (Expert: John Bradley, Brian Campbell, Mike Jones)
JWT Confirmation Methods RFC 7800
Specification Required (Expert: John Bradley, Hannes Tschofenig)
PASSporT RCD Claim Types Internet Draft draft-ietf-stir-passport-rcd-26
Specification Required (Expert: Unassigned)
PASSporT Resource Priority Header (rph) Types RFC 8443
Specification Required (Expert: Martin Dolly, Subir Das)
Personal Assertion Token (PASSporT) Extensions RFC 8225
Specification Required (Expert: Chris Wendt (primary), Russ Housley (secondary))
JSONPath
Function Extensions RFC 9535
Expert Review (Expert: Glyn Normington)
K
Kerberized Internet Negotiation of Keys (KINK) Parameters
KINK Error Codes RFC 4430
0-8191: Standards Action or non standards-track RFCs with Expert Review.
8192-16383: Private Use.
16384-4294967295: Reserved.
(Expert: Stewart Bryant, Danny McPherson)
KINK Message Types RFC 4430
1-127: Standards Action or non standards-track RFCs with Expert Review.
128-255: Private Use.
(Expert: Shoichi Sakane, Ken'ichi Kamada)
KINK Next Payload Types RFC 4430
0-127: Standards Action or non standards-track RFCs with Expert Review.
128-255: Private Use.
(Expert: Shoichi Sakane, Ken'ichi Kamada)
Kerberos Parameters
FAST Armor Types RFC 6113
Standards Action
FAST Options RFC 6113
Standards Action
Kerberos Checksum Type Numbers RFC 3961
Standards Action for standards-track RFCs; non-standards-track RFCs must be reviewed by an expert. (Expert: Ken Raeburn)
Kerberos Encryption Type Numbers RFC 3961
Standards Action for standards-track RFCs; non-standards-track RFCs must be reviewed by an expert. (Expert: Ken Raeburn)
Kerberos Message Transport Types RFC 6784
IETF Review
Kerberos Second Factor Types RFC 9588
Specification Required (Expert: Simo Sorce, Greg Hudson)
Kerberos SPAKE Groups RFC 9588
Specification Required (Expert: Simo Sorce, Greg Hudson)
Kerberos TCP Extensions RFC 5021
0-29: Standards Action or IESG Approval.
30: Reserved.
Pre-authentication and Typed Data RFC 6113
Expert Review (Expert: Sam Hartman (primary), Larry Zhu (secondary))
Well-Known Kerberos Principal Names RFC 6111
Specification Required (Expert: Unassigned)
Well-Known Kerberos Realm Names RFC 6111
Specification Required (Expert: Unassigned)
Kerberos V GSS-API Mechanism Parameters
Kerberos V GSS-API Mechanism Extension Types RFC 6542
0x00000000 - 0x000003FF: IETF Review.
0x00000400 - 0xFFFFF3FF: Specification Required.
(Expert: Unassigned)
Kerberos V GSS-API Token Type Identifiers RFC 4121, RFC 7055
Expert Review (Expert: Sam Hartman)
Keying and Authentication for Routing Protocols (KARP) Parameters
Cryptographic Protocol ID RFC 7166
Standards Action
KeyNote Parameters
KeyNote app_domain Identifiers RFC 2704
First Come First Served
KeyNote Public Key Format Identifiers RFC 2704
Specification Required (Expert: Unassigned)
KeyNote Signature Algorithm Identifiers RFC 2704
Specification Required (Expert: Unassigned)
KeyTable
KeyTable AlgIDs RFC 7210
First Come First Served
KeyTable KDFs RFC 7210
First Come First Served
KeyTable Protocols RFC 7210
Specification Required (Expert: Unassigned)
L
Label Distribution Protocol (LDP) Parameters
Experiment ID Name Space RFC 5036
0x00000000-0xefffffff: First Come First Served.
0xf0000000-0xffffffff: Experiment Ids - Reserved for Private Use.
Forwarding Equivalence Class (FEC) Type Name Space RFC 5036, RFC 7358
0-127: IETF Review.
128-191: First Come First Served.
LDP MP Opaque Value Element basic type RFC 6388
Standards Action
LDP MP Opaque Value Element extended type RFC 6388
0-32767: Standards Action.
32768-65535: First Come First Served.
LDP MP Status Value Element type RFC 6388
Standards Action
LDP Targeted Application Identifier RFC 8223
0x0001-0x1FFF: IETF Review.
0x2000-0xF7FF: First Come First Served.
MAC Flush Flags RFC 7361
Standards Action
Message Type Name Space RFC 5036
0x0001-0x00FF: IETF Review.
0x0100-0x01FF: IETF Review.
0x0200-0x02FF: IETF Review.
0x0300-0x03FF: IETF Review.
0x0400-0x04FF: IETF Review.
0x0500-0x05FF: IETF Review.
0x0600-0x3DFF: IETF Review.
0x3E00-0x3EFF: LDP Vendor-Private Extensions.
0x3F00-0x3FFF: LDP Experimental Extensions.
Status Code Name Space RFC 5036
0x00000000-0x1FFFFFFF: IETF Review.
0x20000000-0x3EFFFFFF: First Come First Served.
0x3F000000-0x3FFFFFFF: Private Use.
TLV Type Name Space RFC 5036
0x0001-0x07FF: IETF Review.
0x0800-0x08FF (CR-LDP): IETF Review.
0x0900-0x3DFF: IETF Review.
0x3E00-0x3EFF: LDP Vendor-Private Extensions.
0x3F00-0x3FFF: LDP Experimental Extensions.
Label Generation Ruleset (LGR) Dispositions
Private Dispositions RFC 7940
First Come First Served
Standard Dispositions RFC 7940
Specification Required (Expert: Unassigned)
Language Tags
Directory of language tag applications - OBSOLETE RFC 4646
No further registrations in this registry
Language Subtag Registry RFC 5646
Expert Review (Expert: Michael Everson (primary), Doug Ewell (secondary))
Language Subtag Registry - Registration Templates RFC 5646
Expert Review (Expert: Michael Everson (primary), Doug Ewell (secondary))
Language Tag Extensions Registry RFC 5646
IESG Approval for new assignments. Modifications do not require approval, but must come from the registering authority for the Language Tag. See Section 5.2 of RFC 5646.
Language Tags RFC 4646
No further registrations in this registry.
Layer Two Tunneling Protocol "L2TP"
ATM Alarm Status AVP (Attribute Type 88) Values RFC 4454
Expert Review (Expert: Carlos Pignataro (primary), Ignacio Goyret (secondary))
ATM-Specific Sublayer bits RFC 4454
IETF Review
Bearer Field definition RFC 2661
Standards Action
Circuit Status Bits RFC 3931
IETF Review
Control Message Attribute Value Pairs RFC 3438
Expert Review (Expert: Carlos Pignataro (primary), Ignacio Goyret (secondary))
Data Sequencing Level RFC 3931
Expert Review (Expert: Carlos Pignataro (primary), Ignacio Goyret (secondary))
Default L2-Specific Sublayer bits RFC 3931
Framing Field definition RFC 2661
Standards Action
L2-Specific Sublayer Type RFC 3931
Expert Review (Expert: Carlos Pignataro (primary), Ignacio Goyret (secondary))
L2TPv3 Pseudowire Types RFC 3931
0-32767: Expert Review.
32768-65535: First Come First Served.
(Expert: Carlos Pignataro (primary), Ignacio Goyret (secondary))
Leading Bits of the L2TP AVP Header RFC 2661, RFC 3931
Standards Action
Leading Bits of the L2TP Message Header RFC 2661, RFC 3931
Standards Action
Message Type AVP (Attribute Type 0) Values RFC 3438
Expert Review (Expert: Carlos Pignataro (primary), Ignacio Goyret (secondary))
PPP Disconnect Cause Code (Attribute Type 46) Values RFC 3145
Proxy Authen Type AVP (Attribute Type 29) Values RFC 2661
First Come First Served
Result Code AVP (Attribute Type 1) Values RFC 3438
Expert Review (Expert: Carlos Pignataro (primary), Ignacio Goyret (secondary))
Service Category AVP (Attribute Type 42) Flag Field RFC 3301
Specification Required (Expert: Carlos Pignataro (primary), Ignacio Goyret (secondary))
VCCV Capability AVP (Attribute Type 96) Values RFC 5085
IETF Review
Layered Coding Transport (LCT) Header Extension Types
LCT Header Extension Types RFC 5651
0-63: IETF Review.
64-127: Specification Required.
128-191: IETF Review.
192-255: Specification Required.
(Expert: Vincent Roca)
Level of Assurance (LoA) Profiles
Level of Assurance Profiles RFC 6711
Expert Review (Expert: John Bradley, Joni Brennan, Leif Johansson)
Licklider Transmission Protocol (LTP) Parameters
LTP Cancel Segment Reason Codes RFC 7116
Specification Required (Expert: Unassigned)
LTP Ciphersuites RFC 5327
Specification Required (Expert: Unassigned)
LTP Client Service Identifiers RFC 7116
Specification Required (Expert: Unassigned)
LTP Engine Numbers RFC 7116
1-16383: Expert Review.
268435456-4398046511103: First Come First Served for requests of up to 16384 values. Larger requests require Expert Review..
(Expert: Unassigned)
LTP Extension Tags RFC 5326
Specification Required (Expert: Unassigned)
Lightweight Directory Access Protocol (LDAP) - pcimSchema Descriptors
pcimSchema LDAP Descriptors RFC 3703
TBD
Lightweight Directory Access Protocol (LDAP) Parameters
Attribute Description Options RFC 4520
x- Private Use (can not be registered) e- Reserved for Experiments, First Come First Served All others: Standards Action or Expert Review with Specification (Expert: Rolf Sonneveld, Andrew Findlay)
Bind Authentication Method RFC 4520
0-1023 Standards Action (can not start with e- or x-) 1024-4095 Expert Review with Specification Required (can not start with e- or x-) 4096-16383 First Come First Served (Shall start with e-) 16384 and higher Private Use (Shall start with x-) (Expert: Rolf Sonneveld, Andrew Findlay)
Internet Directory Numbers (iso.org.dod.internet.directory [1.3.6.1.1.]) RFC 4520, RFC 2578
Specification Required (Expert: Rolf Sonneveld, Andrew Findlay)
LDAP authzid prefixes RFC 4520
x- Private Use e- Reserved for Experiments, First Come First Served All others, Standards Action or Expert Review with Specification Required (Expert: Rolf Sonneveld, Andrew Findlay)
LDAP Filter Choices RFC 4520
Standards Action
LDAP ModifyRequest Operations RFC 4520
0-1023 Standards Action (can not start with e- or x-) 1024-4095 Expert Review with Specification Required (can not start with e- or x-) 4096-16383 First Come First Served (Shall start with e-) 16384 and higher Private Use (Shall start with x-) (Expert: Rolf Sonneveld, Andrew Findlay)
LDAP Search Scopes RFC 4520
0-1023 Standards Action (can not start with e- or x-) 1024-4095 Expert Review with Specification Required (can not start with e- or x-) 4096-16383 First Come First Served (Shall start with e-) 16384 and higher Private Use (Shall start with x-) (Expert: Rolf Sonneveld, Andrew Findlay)
LDAP Syntaxes RFC 4520
First Come First Served
LDAPMessage types RFC 4520
Standards Action
Object Identifier Descriptors RFC 4520
x- Private Use (can not be registered) e- Reserved for Experiments, First Come First Served All others: Expert Review (Expert: Rolf Sonneveld, Andrew Findlay)
Protocol Mechanisms RFC 4520
First Come First Served
resultCode values RFC 4520
0-1023 Standards Action (can not start with e- or x-) 1024-4095 Expert Review with Specification Required (can not start with e- or x-) 4096-16383 First Come First Served (Shall start with e-) 16384 and higher Private Use (Shall start with x-) (Expert: Rolf Sonneveld, Andrew Findlay)
Link Management Protocol (LMP) Parameters
LMP Behavior Configuration Flags RFC 6898
Standards Action
LMP Message Type Name Space RFC 4204
0-127: Standards Action.
128-247: Expert Review.
(Expert: Dimitri Papadimitriou)
LMP Object Class name space and Class type (C-Type) RFC 4204
0-127: Standards Action.
128-247: Expert Review.
(Expert: Dimitri Papadimitriou)
Link Relations
Link Relation Types RFC 8288
Specification Required (Expert: Mark Nottingham, Julian Reschke, Jan Algermissen)
Link State Routing TE Capabilities
TE Node Capabilities RFC 5073
IETF Review
Locally-Served DNS Zones
IPv4 Locally-Served DNS Zone Registry RFC 6303
IETF Review
IPv6 Locally-Served DNS Zone Registry RFC 6303
IETF Review
service.arpa Subdomain Internet Draft draft-ietf-dnssd-srp-25
Standards Action or IESG Approval
Transport-Independent Locally-Served DNS Zone Registry RFC 8375
IETF Review
Location-to-Service Translation (LoST) Location Profiles
LoST Location Profiles RFC 5222, RFC 9036
Specification Required (Expert: Henning Schulzrinne)
Locator/ID Separation Protocol (LISP) Parameters
LISP ACT Values RFC 9301
IETF Review or IESG Approval
LISP Address Type Codes (CLOSED) RFC 6830, RFC 9301
LISP Algorithm ID Numbers RFC 9301
First Come First Served
LISP Canonical Address Format (LCAF) Types RFC 8060
Specification Required (Expert: Luigi Iannone, Albert Cabellos)
LISP Control Plane Header Bits: EID-Record RFC 9301
Specification Required (Expert: Albert Cabellos, Dino Farinacci)
LISP Control Plane Header Bits: Encapsulated Control Message (ECM) RFC 9301
Specification Required (Expert: Albert Cabellos, Dino Farinacci)
LISP Control Plane Header Bits: Map-Register RFC 9301
Specification Required (Expert: Albert Cabellos, Dino Farinacci)
LISP Control Plane Header Bits: Map-Reply RFC 9301
Specification Required (Expert: Albert Cabellos, Dino Farinacci)
LISP Control Plane Header Bits: Map-Request RFC 9301
Specification Required (Expert: Albert Cabellos, Dino Farinacci)
LISP Control Plane Header Bits: Map-Request-Record RFC 9437
Specification Required (Expert: Albert Cabellos, Dino Farinacci)
LISP Control Plane Header Bits: RLOC-Record RFC 9301
Specification Required (Expert: Albert Cabellos, Dino Farinacci)
LISP Crypto Cipher Suite RFC 8061
First Come First Served
LISP ECM Authentication Data Types RFC 9303
Specification Required (Expert: Damien Saucez, Luigi Iannone)
LISP Map-Reply Authentication Data Types RFC 9303
Specification Required (Expert: Damien Saucez, Luigi Iannone)
LISP Packet Types RFC 9304, RFC 9301
Standards Action
LISP Shared Extension Message Type Sub-types RFC 9304
0-1023: Standards Action.
1024-4095: First Come First Served.
LISP-GPE Next Protocol RFC 9305
Specification Required (Expert: Darrel Lewis, Luigi Iannone)
LISP-SEC Authentication Data Key Derivation Function IDs RFC 9303
Specification Required (Expert: Damien Saucez, Luigi Iannone)
LISP-SEC Authentication Data Key Wrap IDs RFC 9303
Specification Required (Expert: Damien Saucez, Luigi Iannone)
LISP-SEC Preferred Authentication Data HMAC IDs RFC 9303
Specification Required (Expert: Damien Saucez, Luigi Iannone)
M
Machine Names
Machine Names
Not defined
"Magic Numbers" for ISAKMP Protocol
IPSEC AH Transform Identifiers RFC 2407, RFC 9395
Registry closed
IPSEC ESP Transform Identifiers RFC 2407, RFC 9395
Registry closed
IPSEC Identification Type RFC 2407, RFC 9395
Registry closed
IPSEC IPCOMP Transform Identifiers RFC 2407, RFC 9395
Registry closed
IPSEC ISAKMP Transform Identifiers RFC 2407, RFC 9395
Registry closed
IPSEC Labeled Domain Identifiers RFC 2407, RFC 9395
Registry closed
IPSEC Notify Message Types RFC 2407, RFC 9395
Registry closed
IPSEC Security Association Attributes RFC 2407, RFC 9395
Registry closed
IPSEC Security Protocol Identifiers RFC 2407, RFC 9395
Registry closed
IPSEC Situation Definition RFC 2407, RFC 9395
Registry closed
Mail Parameters
Address Literal Tags RFC 5321
Standards Action
Encoding Header Field Keywords RFC 1505
Specification Required (Expert: Unassigned)
Mail Transmission Types RFC 821, RFC 822, RFC 5321
Standards Action or IESG-Approved Experimental RFC
Multicast Email SMTP Extensions RFC 8494
Specification Required (Expert: Alexey Melnikov (primary), RFC Independent Submissions Editor (secondary))
Registered-states RFC 6729
First Come First Served
SMTP PRIORITY extension Priority Assignment Policy RFC 6710
Specification Required (Expert: Unassigned)
SMTP Server Limits RFC 9422
Specification Required (Expert: John Klensin, Murray Kucherawy (backup))
SMTP Service Extensions RFC 5321
Standards Action or IESG-Approved Experimental RFC
Manufacturer Usage Description (MUD)
MUD Extensions RFC 8520
Standards Action
MUD Well-Known Uniform Resource Name (URN) RFC 8520
Expert Review (Expert: Eliot Lear, Dan Romascanu)
Matroska
Matroska AES Cipher Modes RFC 9559
First Come First Served
Matroska Alpha Modes RFC 9559
First Come First Served
Matroska Chapter Codec IDs RFC 9559
Specification Required (Expert: Unassigned)
Matroska Color Ranges RFC 9559
Specification Required (Expert: Unassigned)
Matroska Compression Algorithms RFC 9559
Specification Required (Expert: Unassigned)
Matroska Content Encoding Scopes RFC 9559
Specification Required (Expert: Unassigned)
Matroska Content Encoding Types RFC 9559
Specification Required (Expert: Unassigned)
Matroska Display Units RFC 9559
Specification Required (Expert: Unassigned)
Matroska Element IDs RFC 9559
0x80-0xFE: RFC Required.
0x407F-0x7FFE: Specification Required.
0x203FFF-0x3FFFFE: First Come First Served.
0x101FFFFF-0x1FFFFFFE: First Come First Served.
(Expert: Unassigned)
Matroska Encryption Algorithms RFC 9559
First Come First Served
Matroska Horizontal Chroma Sitings RFC 9559
First Come First Served
Matroska Projection Types RFC 9559
First Come First Served
Matroska Stereo Modes RFC 9559
Specification Required (Expert: Unassigned)
Matroska Tags Target Types RFC 9559
Specification Required (Expert: Unassigned)
Matroska Track Plane Types RFC 9559
First Come First Served
Matroska Track Types RFC 9559
Specification Required (Expert: Unassigned)
Matroska Vertical Chroma Sitings RFC 9559
First Come First Served
Maximally Redundant Tree (MRT) Parameters
MRT Profile Identifier Registry RFC 7812
Standards Action
Media Control Channel Framework Parameters
Control Packages RFC 6230
RFC Required
Header Fields RFC 6230
RFC Required
IVR Prompt Variable Type for Control Packages RFC 6231
RFC Required
MEDIACTRL Interactive Voice Response Control Package Status Codes RFC 6623
Standards Action
Method Names RFC 6230
RFC Required
Mixer Control Package Status Code Registration RFC 6505
Standards Action
Status Codes RFC 6230
RFC Required
Media Feature Tags - iso.org.dod.internet.features (1.3.6.1.8)
iso.org.dod.internet.features.global-tree (1.3.6.1.8.2) RFC 2506
Expert Review (Expert: Paul Kyzivat)
iso.org.dod.internet.features.ietf-tree (1.3.6.1.8.1) RFC 2506, RFC 2534
IETF Review
iso.org.dod.internet.features.sip-tree (1.3.6.1.8.4) RFC 3840
IETF Review
iso.org.dod.internet.features.uri-tree (1.3.6.1.8.3) RFC 2506
Unregistered (formed from uri)
Media Gateway Control Protocol (MGCP)
List of Extension Digit Map Letters RFC 3660
Expert Review (Expert: Brian Rosen)
LocalConnectionOptions Sub-registry RFC 3435
Expert Review (Expert: Brian Rosen)
MGCP Package Sub-Registry RFC 3435
Expert Review (Expert: Brian Rosen)
Media Independent Handover (MIH)
MIH Table of Mappings From Service Field Values to Transport Protocols RFC 5679
Standards Action
Media Resource Control Protocol Version 2 (MRCPv2) Parameters
Grammar Reference List Parameters RFC 6787
Specification Required (Expert: Unassigned)
MRCPv2 Header Fields RFC 6787
Standards Action
MRCPv2 Methods and Events RFC 6787
Standards Action
MRCPv2 Resource Types RFC 6787
Standards Action
MRCPv2 Status Codes RFC 6787
Specification Required (Expert: Unassigned)
MRCPv2 Vendor-Specific Parameters RFC 6787
First Come First Served
Megaco/H.248 Packages
Error Codes RFC 5125, RFC 5615
Expert Review (Expert: Unassigned)
Private packages (0x8000 to 0xffff) RFC 5125, RFC 5615
Expert Review (Expert: Unassigned)
Profile Names RFC 5125, RFC 5615
Expert Review (Expert: Unassigned)
Public Packages (0x0001-0x7fff) RFC 5125
Expert Review or IETF Review (Expert: Unassigned)
ServiceChange Reasons RFC 5125, RFC 5615
Expert Review (Expert: Unassigned)
Message Disposition Notification (MDN) Parameters
MDN-Disposition-modifier-names RFC 8098
Specification Required (Expert: Tony Hansen)
MDN-Disposition-notification-option-names RFC 8098
Specification Required (Expert: Unassigned)
MDN-Extension-field-names RFC 8098
Specification Required (Expert: Unassigned)
Message Headers
Content-Translation-Type Header Field Values RFC 8255
Specification Required (Expert: Nik Tomkinson)
Permanent Message Header Field Names RFC 3864
Expert Review (Expert: Graham Klyne)
Provisional Message Header Field Names RFC 3864
Expert Review (Expert: Graham Klyne)
Message Session Relay Protocol (MSRP) Parameters
Header Fields RFC 4975
RFC Required
Methods RFC 4975
RFC Required
Status Codes RFC 4975
RFC Required
Message Tracking Query Protocol (MTQP) Options Registry
MTQP Options RFC 3887
Options whose names do not begin with "vnd.": Standards Action or IESG-approved experimental RFC.
Options with "vnd.": First Come First Served.
Messaging Abuse Reporting Format (MARF) Parameters
Feedback Report Header Fields RFC 5965
Specification Required (Expert: Scott Kitterman, Murray Kucherawy)
Feedback Report Type Values RFC 5965
Specification Required (Expert: Scott Kitterman, Murray Kucherawy)
Messaging Layer Security (MLS)
MLS Cipher Suites RFC 9420
Specification Required (Expert: Sean Turner, Raphael Robert, Richard Barnes)
MLS Credential Types RFC 9420
Specification Required (Expert: Sean Turner, Raphael Robert, Richard Barnes)
MLS Exporter Labels RFC 9420
Specification Required (Expert: Sean Turner, Raphael Robert, Richard Barnes)
MLS Extension Types RFC 9420
Specification Required (Expert: Sean Turner, Raphael Robert, Richard Barnes)
MLS Proposal Types RFC 9420
Specification Required (Expert: Sean Turner, Raphael Robert, Richard Barnes)
MLS Public Key Encryption Labels RFC 9420
Specification Required (Expert: Sean Turner, Raphael Robert, Richard Barnes)
MLS Signature Labels RFC 9420
Specification Required (Expert: Sean Turner, Raphael Robert, Richard Barnes)
MLS Wire Formats RFC 9420
Specification Required (Expert: Sean Turner, Raphael Robert, Richard Barnes)
Milnet Parameters - Registry closed
Milnet Link Numbers
Registry closed
Milnet Logical Addresses
Registry closed
Milnet X.25 Address Mappings
Registry closed
Mobile Ad hoc NETwork (MANET) Parameters
Address Block TLV Types RFC 5444, RFC 7631, RFC 8245
0-127: Expert Review.
128-223: Expert Review.
224-255: Reserved for Experimental Use.
(Expert: Joe Macker)
Cryptographic Functions RFC 7182
Expert Review (Expert: Joe Macker)
Hash Functions RFC 7182
Expert Review (Expert: Joe Macker)
HELLO Message-Type-specific Address Block TLV Types RFC 6130
0-127: Reserved.
128-223: Expert Review.
224-255: Reserved.
(Expert: Joe Macker)
HELLO Message-Type-specific Message TLV Types RFC 6130
0-127: Reserved.
128-223: Expert Review.
224-255: Reserved.
(Expert: Joe Macker)
ICV Address Block TLV Type Extensions RFC 7182
Expert Review (Expert: Joe Macker)
ICV Message TLV Type Extensions RFC 7182
Expert Review (Expert: Joe Macker)
ICV Packet TLV Type Extensions RFC 7182
Expert Review (Expert: Joe Macker)
LINK_METRIC Address Block TLV Type Extensions RFC 7181
Expert Review (Expert: Joe Macker)
LINK_STATUS TLV Values RFC 7188
Expert Review (Expert: Joe Macker)
LOCAL_IF TLV Values RFC 7188
Expert Review (Expert: Joe Macker)
Message TLV Types RFC 5444, RFC 7631, RFC 8245
0-127: Expert Review.
128-223: Expert Review.
224-255: Reserved for Experimental Use.
(Expert: Joe Macker)
Message Types RFC 5444, RFC 8245
Expert Review (Expert: Joe Macker)
MPR TLV BIT Values RFC 7188
Expert Review (Expert: Joe Macker)
NBR_ADDR_TYPE Address Block TLV Bit Values RFC 7188
Expert Review (Expert: Joe Macker)
OTHER_NEIGHB TLV Values RFC 7188
Expert Review (Expert: Joe Macker)
Packet TLV Types RFC 5444, RFC 8245
Expert Review (Expert: Joe Macker)
SMF Relay Algorithm IDs RFC 6621
Expert Review (Expert: Joe Macker)
SMF_NBR_TYPE Address Block TLV Type Extensions RFC 6621
Expert Review (Expert: Joe Macker)
SMF_TYPE Message TLV Type Extensions RFC 6621
Expert Review (Expert: Joe Macker)
TC Message-Type-specific Address Block TLV Types RFC 7181
0-127: Reserved.
128-223: Expert Review.
224-255: Reserved.
(Expert: Joe Macker)
TC Message-Type-specific Message TLV Types RFC 7181
0-127: Reserved.
128-223: Expert Review.
224-255: Reserved.
(Expert: Joe Macker)
TIMESTAMP Address Block TLV Type Extensions RFC 7182
Expert Review (Expert: Joe Macker)
TIMESTAMP Message TLV Type Extensions RFC 7182
Expert Review (Expert: Joe Macker)
TIMESTAMP Packet TLV Type Extensions RFC 7182
Expert Review (Expert: Joe Macker)
Type 0 Address Block TLV Type Extensions RFC 5497, RFC 7631
Expert Review (Expert: Joe Macker)
Type 0 Message TLV Type Extensions RFC 5497, RFC 7631
Expert Review (Expert: Joe Macker)
Type 1 Address Block TLV Type Extensions RFC 5497, RFC 7631
Expert Review (Expert: Joe Macker)
Type 1 Message TLV Type Extensions RFC 5497, RFC 7631
Expert Review (Expert: Joe Macker)
Type 10 Address Block TLV Type Extensions RFC 7181, RFC 7631
Expert Review (Expert: Joe Macker)
Type 2 Address Block TLV Type Extensions RFC 6130, RFC 7631
Expert Review (Expert: Joe Macker)
Type 3 Address Block TLV Type Extensions RFC 6130, RFC 7631
Expert Review (Expert: Joe Macker)
Type 4 Address Block TLV Type Extensions RFC 6130, RFC 7631
Expert Review (Expert: Joe Macker)
Type 7 Message TLV Type Extensions RFC 7181, RFC 7631
Expert Review (Expert: Joe Macker)
Type 8 Address Block TLV Type Extensions RFC 7181, RFC 7631
Expert Review (Expert: Joe Macker)
Type 8 Message TLV Type Extensions RFC 7181, RFC 7631
Expert Review (Expert: Joe Macker)
Type 9 Address Block TLV Type Extensions RFC 7181, RFC 7631
Expert Review (Expert: Joe Macker)
Mobile IPv4 Numbers
Access Technology Types RFC 5563
Expert Review (Expert: Unassigned)
Code Values for General Notification Messages RFC 6098
0: Expert Review.
1-63: Expert Review.
64-69: Expert Review.
70-127: Expert Review.
128-133: Expert Review.
134-191: Expert Review.
192-197: Expert Review.
198-255: Expert Review.
(Expert: Unassigned)
Code Values for Mobile IP Handoff Reply Messages (Value 17) RFC 4881
IETF Review
Code Values for Mobile IP Registration Reply Messages RFC 5944, RFC 6521
(Expert: Unassigned)
Dual Stack (DSMIPv4) Extension subtypes (Value 152) RFC 5454
Expert Review (Expert: Unassigned)
Extension Subtypes
Extensions to Mobile IP Registration Messages RFC 5944, RFC 6098
Specification Required (Expert: Unassigned)
Generalized Link Layer Address Registration Extension Subtypes and Generalized Link Layer Address Advertisement Extension Subtypes RFC 4881
IETF Review
IPv6 Prefix Reply Extension Codes RFC 5454
Expert Review (Expert: Unassigned)
Message String Extension (Value 145) RFC 4917
Expert Review (Expert: Unassigned)
Mobile IP Extensions for ICMP Router Discovery messages RFC 5944
Specification Required (Expert: Unassigned)
Mobile IP Message Types RFC 5944
Specification Required (Expert: Unassigned)
Mobile Network Acknowledgement Extension RFC 5177
Standards Action or IESG Approval
Mobile Router Route Optimization Capability Extension (Value 153) RFC 6521
RFC Required
PMIPv4 Device ID Types RFC 5563
Expert Review (Expert: Unassigned)
PMIPv4 Non-skippable Extension (Value 47) RFC 5563
Expert Review (Expert: Unassigned)
PMIPv4 Per-Node Authentication Method Types RFC 5563
Expert Review (Expert: Unassigned)
PMIPv4 Skippable Extension (Value 147) RFC 5563
Expert Review (Expert: Unassigned)
PMIPv4 Subscriber ID Types RFC 5563
Expert Review (Expert: Unassigned)
Replay Method Identifier RFC 3957
Expert Review (Expert: Unassigned)
Route Optimization Data Extension (Value 50) RFC 6521
RFC Required
Route Optimization Extension (Value 49) RFC 6521
RFC Required
Security Parameter Index (SPI) Values for the Mobile IP Reserved SPIs RFC 4721
Must be specified and approved by the MIP4 working group
Mobile IPv6
Access Network Information (ANI) Sub-Option Type Values RFC 6757
Expert Review (Expert: Jouni Korhonen, Sri Gundavelli)
Access Technology Type Option Type Values RFC 5213
Expert Review (Expert: Sri Gundavelli, Jouni Korhonen)
Binding Acknowledgment Flags RFC 5213
Standards Action or IESG Approval
Binding Revocation Acknowledgement Status Codes RFC 5846
Standards Action or IESG Approval
Binding Revocation Type RFC 5846
Standards Action or IESG Approval
Binding Update Flags RFC 5213
Standards Action or IESG Approval
DSMIP6-TLS Packet Types Registry RFC 6618
RFC Required
Dual Stack MIPv6 (DSMIPv6) IPv4 Home Address Option Status Codes RFC 5555
IETF Review
Enumerating Algorithms RFC 4285
IETF Review
Flow Binding Acknowledgement Status Codes RFC 7109
RFC Required
Flow Binding Action Values RFC 7109
RFC Required
Flow Binding Indication Triggers RFC 7109
RFC Required
Flow Binding Type RFC 7109
RFC Required
Flow Identification Mobility Option Status Codes RFC 6089
Standards Action or IESG Approval
Flow Identification Sub-Options RFC 6089
Standards Action or IESG Approval
Handoff Indicator Option Type Values RFC 5213
Expert Review (Expert: Sri Gundavelli, Jouni Korhonen)
Handover Acknowledge Flags RFC 5949
Standards Action or IESG Approval
Handover Acknowledge Status Codes RFC 5949
Standards Action or IESG Approval
Handover Initiate Flags RFC 5949
Standards Action or IESG Approval
Handover Initiate Status Codes RFC 5949
Standards Action or IESG Approval
IPv4 DHCP Support Mode Flags RFC 5844
Expert Review (Expert: Sri Gundavelli, Jouni Korhonen)
IPv4 Home Address Reply Status Codes RFC 5844
Expert Review (Expert: Sri Gundavelli, Jouni Korhonen)
LMA-Controlled MAG Parameters Sub-Option Type Values RFC 8127
Expert Review (Expert: Dhananjay Patki, Lyle Bertz)
Mobile Node Group Identifier Type Registry RFC 6602
Expert Review (Expert: Unassigned)
Mobile Node Identifier Option Subtypes RFC 4283
Standards Action
Mobility Header Types - for the MH Type field in the Mobility Header RFC 6275
Standards Action or IESG Approval
Mobility Options RFC 6275
Standards Action or IESG Approval
Operator-Identifier Type Registry RFC 6757
Expert Review (Expert: Unassigned)
Pseudo Home Address Acknowledgement Status Codes RFC 5726
RFC Required
Quality-of-Service Attribute Registry RFC 7222
Specification Required (Expert: Jouni Korhonen, Sri Gundavelli)
Revocation Trigger Values RFC 5846
Standards Action or IESG Approval
Status Codes RFC 6275, RFC 5213
Standards Action or IESG Approval
Status Codes (DNS Update Mobility Option) RFC 5026
Standards Action or IESG Approval
Subtype Field of the MN-HA and MN-AAA Authentication Mobility Options RFC 4285
IETF Review
Traffic Selector Format RFC 6089
Standards Action or IESG Approval
Update Notification Acknowledgement Status Registry RFC 7077
Specification Required (Expert: Sri Gundavelli, Marco Liebsch)
Update Notification Reasons Registry RFC 7077
Specification Required (Expert: Sri Gundavelli, Marco Liebsch)
Multi-threaded Routing Toolkit (MRT)
Subtype Codes RFC 6396
New Subtype Code definitions must reference an existing Type Code to which the Subtype belongs. Subtype assignments follow the assignment rules for the Type Codes to which they belong.
Type Codes RFC 6396
65-511: IETF Review.
512-2047: Specification Required.
2048-64511: First Come First Served.
(Expert: Unassigned)
Multicast Acquisition
Multicast Acquisition Method Registry RFC 6332
Specification Required (Expert: Unassigned)
Multicast Acquisition Report Block TLV Space Registry RFC 6332
Specification Required (Expert: Unassigned)
Multicast Acquisition Status Code Space Registry RFC 6332
Specification Required (Expert: Unassigned)
Multicast Address Dynamic Client Allocation Protocol (MADCAP) Parameters
MADCAP Error Codes RFC 2730
IETF Review
MADCAP Feature Codes RFC 2730
IETF Review
MADCAP Lease Identifier Types RFC 2730
IETF Review
MADCAP Message Types RFC 2730
IETF Review
MADCAP Options RFC 2730
IETF Review
Multicast Address-Set Claim (MASC) Parameters
MASC Message Types RFC 2909
IETF Review
MASC NOTIFICATION Message Error Codes and Subcodes RFC 2909
IETF Review
MASC OPEN Message Optional Parameter Types RFC 2909
IETF Review
MASC UPDATE Message Attribute Types RFC 2909
IETF Review
MASC UPDATE Message Optional Parameter Types (128-255) RFC 2909
IETF Review
Notification Error Subcodes RFC 2909
IETF Review
Multicast Ping Protocol Parameters
Multicast Ping Protocol Message Types RFC 6450
Specification Required (Expert: Unassigned)
Multicast Ping Protocol Option Types RFC 6450
Specification Required (Expert: Unassigned)
Multicast Source Discovery Protocol (MSDP) TLV Values Registry
MSDP TLV Values RFC 3618
1-200: Standards Action or IESG Approval.
201-255: Experimental Use.
Multimedia Internet KEYing (MIKEY) Payload Name Spaces
Cert Hash Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
Common Header Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
DH Data Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
ECC Curve RFC 6267
Specification Required (Expert: Daniel Migault)
Envelope Data Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
Error Payload Name Spaces RFC 3830, RFC 6309
IETF Review or IESG Approval
General Extensions Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
ID Payload and Certificate Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
ID Role RFC 6043
Specification Required (Expert: Daniel Migault)
ID Scheme RFC 6509
Specification Required (Expert: Daniel Migault)
Key Data Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
Key Data Transport Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
MIKEY Security Protocol Parameters RFC 3830, RFC 6309
IETF Review or IESG Approval
RAND Role RFC 6043
Specification Required (Expert: Daniel Migault)
SAKKE params RFC 6509
Specification Required (Expert: Daniel Migault)
Security Policy Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
Signature Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
SK sub-payload RFC 6267
Specification Required (Expert: Daniel Migault)
Ticket Type RFC 6043
Specification Required (Expert: Daniel Migault)
Timestamp Payload Field Names RFC 3830, RFC 6309
IETF Review or IESG Approval
TS Role RFC 6043
Specification Required (Expert: Daniel Migault)
Multiplexed Application Substrate over QUIC Encryption (MASQUE)
HTTP Capsule Types RFC 9297
provisional: Expert Review.
Date field update for provisional registrations: First Come First Served.
permanent, 0x00-0x3f: Standards Action or IESG Approval.
permanent, greater than 0x3f: Specification Required.
first unassigned codepoint: Standards Action.
values 0x29 * N + 0x17 (for integer values of N): Reserved.
(Expert: Lucas Pardue, David Schinazi)
HTTP Capsule Types RFC 9297
MASQUE URI Suffixes RFC 9484
Expert Review (Expert: Tommy Pauly, Magnus Westerlund)
Multiprotocol Label Switching Architecture (MPLS)
Adjacency Type in the IGP-Adjacency Segment ID RFC 8287
0-250: Standards Action.
251-254: Experimental Use.
Base Special-Purpose MPLS Label Values RFC 3032, RFC 7274, RFC 9017
Standards Action
CC/CV MEP-ID TLV Registry RFC 6428, RFC 7214
Standards Action
Downstream Detailed Mapping Address Type Registry RFC 6426, RFC 7555, RFC 8029
Standards Action
DS Flags RFC 8029
Standards Action
Extended Special-Purpose MPLS Label Values RFC 7274
Standards Action
G-ACh Advertisement Protocol Application Registry RFC 7212, RFC 7214
IETF Review
G-ACh Advertisement Protocol: Ethernet Interface Parameters RFC 7213, RFC 7214
IETF Review or IESG Approval
G-ACh Advertisement Protocol: GAP TLV Objects (Application ID 0) RFC 7212, RFC 7214
IETF Review
Global Flags RFC 6425
Standards Action
Information Field and Protocol Identifier in the Q.2941 Generic Identifier RFC 3033
0x10-0xFD: IETF Review.
Interface and Label Stack and Detailed Interface and Label Stack Address Types RFC 8029, RFC 8611
1-250: Standards Action.
251-254: Experimental Use.
Interface Index Flags RFC 8611
Standards Action
Loss/Delay Measurement Control Code: Query Codes RFC 6374, RFC 7214
IETF Review
Loss/Delay Measurement Control Code: Response Codes RFC 6374, RFC 7214
IETF Review
LSR Capability Flags RFC 8611
Standards Action
Measurement Timestamp Type RFC 6374, RFC 7214
IETF Review
Message Types RFC 8029, RFC 9041
0-191: Standards Action.
192-247: RFC Required.
248-251: Experimental Use.
252-255: Private Use.
MPLS Fault OAM Flag Registry RFC 6427, RFC 7214
Standards Action
MPLS Fault OAM Message Type Registry RFC 6427, RFC 7214
Standards Action
MPLS Fault OAM TLV Registry RFC 6427, RFC 7214
0-191: Standards Action.
192-247: Specification Required.
(Expert: Unassigned)
MPLS Generalized Associated Channel (G-ACh) Types (including Pseudowire Associated Channel Types) RFC 4385, RFC 5586, RFC 7026, RFC 7214
IETF Review
MPLS Loss/Delay Measurement TLV Object RFC 6374, RFC 7214
IETF Review
MPLS Multi-Topology Identifiers RFC 7307, RFC 8320
Standards Action
MPLS OAM Function Flags RFC 7759
Standards Action
MPLS PSC Capability Flag Registry RFC 7271
Standards Action
MPLS PSC Request Registry RFC 6378, RFC 7214
Standards Action
MPLS PSC TLV Registry RFC 6378, RFC 7214
IETF Review
MPLS RPS Request Code Registry RFC 8227
Specification Required (Expert: Weiqiang Cheng, Jie Dong)
MPLS RTM TLV Registry RFC 8169
0-127: IETF Review.
128-191: First Come First Served.
MPLS-TP DHC TLVs RFC 8185
IETF Review
Multipath Types RFC 8029
0-250: Standards Action.
251-254: Experimental Use.
Standards Action
Next Hop Address Type Registry RFC 7555
Standards Action
Pad Types RFC 8029
1-250: Standards Action.
251-254: Experimental Use.
Protocol in Label Stack Sub-TLV of Downstream Detailed Mapping TLV RFC 8287
0-250: Standards Action.
251-254: Experimental Use.
Protocol in the Segment ID Sub-TLV RFC 8287
0-250: Standards Action.
251-254: Experimental Use.
Proxy Flags RFC 7555
Standards Action
Q.2957 User-to-user Signaling for the Internet Protocol RFC 3033
0x03-0xFD: IETF Review.
Reply Modes RFC 8029, RFC 9041
0-191: Standards Action.
192-247: RFC Required.
248-251: Experimental Use.
252-255: Private Use.
Reply Path Return Codes RFC 7110
0x0000-0xFFFB: Standards Action.
0xFFFC-0xFFFF: Experimental Use.
Return Codes RFC 8029, RFC 9041
0-191: Standards Action.
192-247: RFC Required.
248-251: Experimental Use.
252-255: Private Use.
Return Path Sub-TLV Type Internet Draft draft-ietf-mpls-rfc6374-sr-17
1-175: IETF Review.
176-239: First Come First Served.
240-251: Experimental Use.
252-254: Private Use.
Segment ID Sub-TLV Flags Internet Draft draft-ietf-mpls-spring-inter-domain-oam-20
Standards Action
TLVs RFC 8029, RFC 9041
0-16383: Standards Action.
16384-31739: RFC Required.
31740-31743: Experimental Use.
31744-32767: First Come First Served.
32768-49161: Standards Action.
49162-64507: RFC Required.
64508-64511: Experimental Use.
64512-65535: First Come First Served.
Multipurpose Internet Mail Extensions (MIME) and Media Types
Access Types RFC 4289
RFC publication required
CMS Encapsulating Content Types RFC 7193
Expert Review (Expert: Russ Housley, Sean Turner)
CMS Inner Content Types RFC 7193
Expert Review (Expert: Russ Housley, Sean Turner)
Event Code Registry RFC 4733
Specification Required (Expert: Unassigned)
Markdown Variants RFC 7763
First Come First Served
Media Types RFC 6838, RFC 4855
Expert Review for Vendor and Personal Trees. For Standards Tree, see RFC 6838, Section 3.1. (Expert: Alexey Melnikov, Darrel Miller, Murray Kucherawy (backup))
MIME to X.400 Table RFC 1494
N/A
MIME to X.400 Table - Extended Body Part RFC 1494
N/A
Parameter Values for the smime-type Parameter RFC 7114
Specification Required (Expert: Russ Housley, Sean Turner (secondary))
Provisional Standard Media Type Registry RFC 6838
FCFS (Organization subject to IESG Approval)
Report Types RFC 8460
Specification Required (Expert: Murray Kucherawy)
Standards-related organizations that have registered Media Types in the Standards Tree RFC 6838
IESG Approval
Structured Syntax Suffixes RFC 6838
Expert Review (Expert: Alexey Melnikov, Darrel Miller)
Sub-Parameter Registry for application/aif+cbor and application/aif+json RFC 9237
Specification Required (Expert: Göran Selander, Cigdem Sengul)
Sub-parameter Registry for application/mbox RFC 4155
Specification Required (Expert: Unassigned)
Sub-Parameter Registry for audio/rtp-midi RFC 6295
See sub-registries below
Sub-Parameter Registry for mode=rtp-midi of audio/mpeg4-generic RFC 6295
See sub-registries below
Sub-Parameter Registry for video/raw RFC 4175
See sub-registries below
Sub-Parameter Registry video/mpeg4-generic, audio/mpeg4-generic and application/mpeg4-generic RFC 3640
Specification Required (Expert: Unassigned)
text/directory Parameters RFC 2425
Two-week comment period, expert review (Expert: Rolf Sonneveld, Andrew Findlay)
text/directory Profiles RFC 2425
Two-week comment period, expert review (Expert: Rolf Sonneveld, Andrew Findlay)
text/directory Types RFC 2425
Two-week comment period, expert review (Expert: Rolf Sonneveld, Andrew Findlay)
Top-Level Media Types Internet Draft draft-ietf-mediaman-toplevel-05
Standards Action
X.400 to MIME Table - Basic Body Parts RFC 1494
N/A
N
Named Information
Named Information Hash Algorithm Registry RFC 6920
Expert Review (Expert: James Manger)
Named Information URI Parameter Definitions RFC 6920
Expert Review (Expert: James Manger)
Namespaces for IP over IEEE 1394
CSR Protocol Identifiers RFC 2734
IANA allocation
MCAP (Multicast Channel Allocation Protocol) Parameters RFC 2734, RFC 3146
Standards Action
Negative-ACKnowledgment (NACK) Oriented Reliable Multicast (NORM) Parameters
NORM Header Extension Types RFC 5740
Specification Required (Expert: Unassigned)
NORM Stream Control Codes RFC 5740
Specification Required (Expert: Unassigned)
NORM_CMD Message Sub-types RFC 5740
Specification Required (Expert: Unassigned)
Netnews Parameters
Netnews Cancel-Lock Hash Algorithms RFC 8315
First Come First Served
Network Configuration Protocol (NETCONF) Capability URNs
Capability URNs RFC 6241, RFC 7803
IETF Review
Network File System version 4 (NFSv4)
NFSv4 ${ietf.org:CPU_ARCH} Values RFC 8881
First Come First Served
NFSv4 ${ietf.org:OS_TYPE} Values RFC 8881
First Come First Served
NFSv4 Device ID Notifications RFC 8881
Standards Action with Expert Review (Expert: Unassigned)
NFSv4 Named Attribute Definitions RFC 8881, RFC 7530
Specification Required for new registrations; updates to fields other than the contact field require Expert Review or IESG Approval (Expert: Unassigned)
NFSv4 Path Variables RFC 8881
ietf.org domain: Standards Action with Expert Review.
non-ietf.org. domain: First Come First Served.
(Expert: Unassigned)
NFSv4 Recallable Object Types RFC 8881
Standards Action with Expert Review (Expert: Unassigned)
pNFS Layout Types RFC 8881
Standards Action with Expert Review (Expert: Unassigned)
Network Layer Protocol Identifiers (NLPIDs) of Interest
NLPIDs of Interest RFC 6328
IETF Review
Network News Transfer Protocol (NNTP) Parameters
NNTP Capability Labels RFC 3977
Labels beginning with X are reserved for private use. All others: Standards Track RFC or an IESG-approved experimental protocol.
NNTP Compression Algorithms RFC 8054
First Come First Served
Network Service Header (NSH) Parameters
Flow ID Context Types RFC 9263
IETF Review
Forwarding Context Types RFC 9263
IETF Review
NSH Base Header Bits RFC 8300
Standards Action
NSH IETF-Assigned Optional Variable-Length Metadata Types RFC 8300
Standards Action
NSH MD Class RFC 8300
0x0000-0x01FF: IETF Review.
0x0200-0xFFF5: Expert Review.
(Expert: Carlos Pignataro, Joel Halpern, Jim Guichard)
NSH MD Types RFC 8300
IETF Review
NSH Next Protocol RFC 8300
Expert Review (Expert: Carlos Pignataro, Joel Halpern, Jim Guichard)
NSH Version RFC 8300
Standards Action
Network Time Protocol (NTP) Parameters
NTP Extension Field Types RFC 5905, RFC 5906, Internet Draft draft-ietf-ntp-update-registries-16
Specification Required (Expert: Unassigned)
NTP Kiss-o'-Death Codes RFC 5905, Internet Draft draft-ietf-ntp-update-registries-16
Specification Required (Expert: Unassigned)
NTP Reference Identifier Codes RFC 5905, Internet Draft draft-ietf-ntp-update-registries-16
Specification Required (Expert: Unassigned)
Network Time Security (NTS)
Network Time Security Error Codes RFC 8915
0-1023: IETF Review.
1024-32767: Specification Required.
32768-65535: Private or Experimental Use.
(Expert: Miroslav Lichvar, Daniel Franke)
Network Time Security Key Establishment Record Types RFC 8915
0-1023: IETF Review.
1024-16383: Specification Required.
16384-32767: Private or Experimental Use.
(Expert: Miroslav Lichvar, Daniel Franke)
Network Time Security Next Protocols RFC 8915
0-1023: IETF Review.
1024-32767: Specification Required.
32768-65535: Private or Experimental Use.
(Expert: Miroslav Lichvar, Daniel Franke)
Network Time Security Warning Codes RFC 8915
0-1023: IETF Review.
1024-32767: Specification Required.
32768-65535: Private or Experimental Use.
(Expert: Miroslav Lichvar, Daniel Franke)
Network Virtualization Overlay (NVO3)
Geneve Option Class RFC 8926
0x0000-0x00FF: IETF Review.
0x0100-0xFEFF: First Come First Served.
0xFF00-0xFFFF: Experimental Use.
Next Hop Resolution Protocol (NHRP) Types
NHRP Extension Types RFC 2332
Expert Review (Expert: Jim Luciani)
NHRP Packet Types RFC 2332
Expert Review (Expert: Jim Luciani)
Novell Service Advisor Protocol (SAP) Numbers - Novell Object Types
Novell Object Type
IANA does not assign
NSIS Signaling Layer Protocol (NSLP) Parameters
AUTH_ENT_ID (X-Type 1) SubType values RFC 5981
Specification Required (Expert: Unassigned)
DEST_ADDR (X-Type 4) SubType values RFC 5981
Specification Required (Expert: Unassigned)
END_TIME (X-Type 6) SubType values RFC 5981
Specification Required (Expert: Unassigned)
Informational Error Codes RFC 5974
0-63: IETF Review.
64-127: Specification Required.
(Expert: Unassigned)
NATFW NSLP Header Flags RFC 5973
IETF Review
NATFW NSLP Message Types RFC 5973
IETF Review
NATFW Response Codes RFC 5973
IETF Review
NSLP Error Classes RFC 5974, RFC 5973
IETF Review
NSLP Message Objects RFC 5974
1-1023: IETF Review.
1024-1999: Specification Required.
(Expert: Unassigned)
Permanent Failure Codes RFC 5974
0-63: IETF Review.
64-127: Specification Required.
(Expert: Unassigned)
Protocol Error Codes RFC 5974
0-63: IETF Review.
64-127: Specification Required.
(Expert: Unassigned)
QoS Model Error Codes RFC 5975
Specification Required (Expert: Unassigned)
QoS NSLP Binding Codes RFC 5974
IETF Review
QoS NSLP Error Source Identifiers RFC 5974
Specification Required (Expert: Unassigned)
QoS NSLP Message Types RFC 5974
IETF Review
SESSION_AUTH X-Types RFC 5981
Specification Required (Expert: Unassigned)
SOURCE_ADDR (X-Type 3) SubType values RFC 5981
Specification Required (Expert: Unassigned)
START_TIME (X-Type 5) SubType values RFC 5981
Specification Required (Expert: Unassigned)
Success Error Codes RFC 5974
0-63: IETF Review.
64-127: Specification Required.
(Expert: Unassigned)
Transient Failure Codes RFC 5974
0-63: IETF Review.
64-127: Specification Required.
(Expert: Unassigned)
O
OAuth Parameters
OAuth Access Token Types RFC 6749, RFC 8414
Specification Required (Expert: Hannes Tschofenig, Mike Jones)
OAuth Authorization Endpoint Response Types RFC 6749
Specification Required (Expert: Hannes Tschofenig, Mike Jones)
OAuth Authorization Server Metadata RFC 8414
Specification Required (Expert: Mike Jones, Nat Sakimura, John Bradley, Dick Hardt)
OAuth Dynamic Client Registration Metadata RFC 7591
Specification Required (Expert: Justin Richer)
OAuth Extensions Error Registry RFC 6749
Specification Required (Expert: Hannes Tschofenig, Mike Jones)
OAuth Parameters RFC 6749
Specification Required (Expert: Hannes Tschofenig, Mike Jones)
OAuth Protected Resource Metadata Internet Draft draft-ietf-oauth-resource-metadata-13
Specification Required (Expert: Unassigned)
OAuth Token Endpoint Authentication Methods RFC 7591, RFC 8414
Specification Required (Expert: Justin Richer)
OAuth Token Introspection Response RFC 7662
Specification Required (Expert: Justin Richer)
OAuth Token Type Hints RFC 7009
Specification Required (Expert: Torsten Lodderstedt, Mike Jones)
OAuth URI RFC 6755
Specification Required (Expert: Hannes Tschofenig, Mike Jones)
PKCE Code Challenge Methods RFC 7636
Specification Required (Expert: John Bradley, Mike Jones)
One Time Password (OTP) Parameters
Algorithm Identifier RFC 2289
IESG Approval
Extension Set Identifiers RFC 2243
IESG Approval
One-Way Active Measurement Protocol (OWAMP) Parameters
OWAMP-Control Command Numbers RFC 7718
IETF Review
OWAMP-Modes RFC 7718
IETF Review
Open Pluggable Edge Services (OPES)
OPES Callout Protocol (OCP) Core RFC 4037
Expert Review for standards-track registration
Open Shortest Path First (OSPF)
Bandwidth Constraints Model Identifiers RFC 4124
0-239: Specification Required.
240-255: Reserved for Private Use.
(Expert: Unassigned)
Open Shortest Path First (OSPF) Authentication Codes
Authentication Codes RFC 2328, RFC 6549
IETF Review
Open Shortest Path First (OSPF) Link Local Signalling (LLS) - Type/Length/Value Identifiers (TLV)
Link Local Signalling TLV Identifiers (LLS Types) RFC 5613
IETF Review
LLS Type 1 Extended Options and Flags RFC 5613
Expert Review (Expert: Gunter Van De Velde, Peter Psenak)
Open Shortest Path First (OSPF) Multi-Topology Routing
Multi-Topology ID Values RFC 4915
0-2: Reserved.
3-31: IETF Review.
32-127: Reserved.
128-255: Reserved.
Open Shortest Path First (OSPF) Opaque Link-State Advertisements (LSA) Option Types
Opaque Link-State Advertisements (LSA) Option Types RFC 5250
0-127: IETF Review.
128-255: Private Use.
OSPFv2 TTZ LSA TLVs RFC 8099
IETF Review
Open Shortest Path First (OSPF) Parameters
OSPF Dynamic Flooding LSA TLVs Internet Draft draft-ietf-lsr-dynamic-flooding-18
IETF Review or IESG Approval
OSPF Flex-Algorithm Prefix Metric Bits RFC 9350
IETF Review
OSPF Flexible Algorithm Definition TLV Sub-TLVs RFC 9350
IETF Review or IESG Approval
OSPF Link Attributes Sub-TLV Bit Values Internet Draft draft-ietf-lsr-dynamic-flooding-18
IETF Review or IESG Approval
OSPF Router Functional Capability Bits RFC 7770
IETF Review
OSPF Router Information (RI) TLVs RFC 7770
1-32767: IETF Review.
32768-32777: Experimentation.
32778-65535: Reserved.
OSPF Router Informational Capability Bits RFC 7770
IETF Review
OSPF Tunnel Parameter Sub-TLVs RFC 9013
1-34999: Standards Action.
35000-65499: First Come First Served.
Open Shortest Path First (OSPF) Signature Algorithms
Signature Algorithms RFC 2154
IETF Review
Open Shortest Path First (OSPF) Traffic Engineering TLVs
RFC 4973 Experimental TE LSA Types RFC 4973
IETF Review
RFC 4973 Experimental TE TLVs RFC 4973
IETF Review
Top Level Types in TE LSAs RFC 3630
Standards Action
Types for sub-TLVs of Optical Node Property (Value 6) RFC 7688
Standards Action
Types for sub-TLVs of OTN-TDM SCSI (Switching Capability Specific Information) RFC 7138
Standards Action
Types for sub-TLVs of Router Address TLV (Value 1) RFC 6827
Standards Action
Types for sub-TLVs of TE Link TLV (Value 2) RFC 3630
Standards Action
Types for sub-TLVs of TE Node Attribute TLV (Value 5) RFC 5786
Standards Action
Types for sub-TLVs of WSON-LSC SCSI (Switching Capability Specific Information) RFC 7688
Standards Action
Open Shortest Path First v2 (OSPFv2) Parameters
IP Algorithm Prefix Reachability Sub-TLV Flags RFC 9502
IETF Review or IESG Approval
OSPF Packet Type (both v2 and v3) RFC 2328, RFC 4940
1-127: Standards Action.
128-255: Reserved.
OSPFv2 Extended Inter-Area ASBR Sub-TLVs RFC 9350
IETF Review or IESG Approval
OSPFv2 Extended Inter-Area ASBR TLVs RFC 9350
IETF Review or IESG Approval
OSPFv2 Extended Link Opaque LSA TLVs RFC 7684
IETF Review or IESG Approval
OSPFv2 Extended Link TLV Sub-TLVs RFC 7684, RFC 9356
IETF Review or IESG Approval
OSPFv2 Extended Prefix Opaque LSA TLVs RFC 7684
IETF Review or IESG Approval
OSPFv2 Extended Prefix TLV Flags RFC 7684
IETF Review or IESG Approval
OSPFv2 Extended Prefix TLV Sub-TLVs RFC 7684
IETF Review or IESG Approval
OSPFv2 Grace LSA Top Level TLV RFC 4940
1-255: Standards Action.
256-65519: Reserved.
65520-65527: Experimentation.
65528-65535: Vendor Private Use.
OSPFv2 Instance IDs RFC 6549
Standards Action
OSPFv2 Link State (LS) Type RFC 2328, RFC 4940
1-127: Standards Action.
128-255: Reserved.
OSPFv2 Options Registry (8 bits) RFC 4940
Standards Action
OSPFv2 Router LSA Link Type (Value 1) RFC 4940
1-127: Standards Action.
128-255: Reserved.
OSPFv2 Router Properties Registry RFC 4940
Standards Action
Open Shortest Path First v3 (OSPFv3) Authentication Trailer Options
OSPFv3 Authentication Types RFC 7166
Standards Action
Open Shortest Path First v3 (OSPFv3) Parameters
LD Options RFC 5820
IETF Review
OSPFv3 Autoconfiguration (AC) LSA TLVs RFC 7503
IETF Review or IESG Approval
OSPFv3 Extended-LSA Sub-TLVs RFC 8362, RFC 9356
4-32767: IETF Review or IESG Approval.
33024-45055: First Come First Served.
OSPFv3 Extended-LSA TLVs RFC 8362
9-32767: IETF Review or IESG Approval.
33024-45055: First Come First Served.
OSPFv3 Instance ID Address Family Values RFC 5838, RFC 6969
Standards Action
OSPFv3 LSA Function Codes RFC 7770
0-255: IETF Review.
256-8175: Reserved.
8176-8183: Experimentation.
8184-8190: Vendor Private Use.
8191: Reserved.
OSPFv3 Options (24 bits) RFC 4940
Standards Action
OSPFv3 Prefix Options (8 bits) RFC 4940
Standards Action
OSPFv3 Router LSA Link Types RFC 4940
0-127: Standards Action.
128-255: Reserved.
OSPFv3 Router Properties Registry RFC 5340
Standards Action
OSPFv3 SRv6 Adjacency SID Sub-TLV Flags RFC 9513
Standards Action
OSPFv3 SRv6 Capabilities TLV Flags RFC 9513
Standards Action
OSPFv3 SRv6 End SID Sub-TLV Flags RFC 9513
Standards Action
OSPFv3 SRv6 Locator LSA Sub-TLVs RFC 9513
0-32767: IETF Review or IESG Approval.
33024-45055: First Come First Served.
OSPFv3 SRv6 Locator LSA TLVs RFC 9513
0-32767: IETF Review or IESG Approval.
33024-45055: First Come First Served.
Open Systems Interconnection (OSI) Network Service Access Point Addresses (NSAPA) Internet Code Point Registry
OSI NSAPA Internet Code Points for AFI 35 RFC 4548
IETF Review
OpenPGP
OpenPGP AEAD Algorithms RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Armor Header Keys RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Armor Header Lines RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Compression Algorithms RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP ECC Curve OIDs and Usage RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP ECC Curve-Specific Wire Formats RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP ECDH KDF and KEK Parameters RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Elliptic Curve Point Wire Formats RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Elliptic Curve Scalar Encodings RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Encrypted Message Packet Versions RFC 9580
RFC Required
OpenPGP Features Flags RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Hash Algorithm Identifiers for RSA Signatures' Use of EMSA-PKCS1-v1_5 Padding RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Hash Algorithms RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Image Attribute Encoding Format RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Image Attribute Versions RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Key and Signature Versions RFC 9580
RFC Required
OpenPGP Key Flags RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Key IDs and Fingerprints RFC 9580
RFC Required
OpenPGP Key Server Preference Flags RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP New Packet Versions (OBSOLETE) RFC 9580
Registry closed
OpenPGP Packet Types RFC 9580
RFC Required
OpenPGP Public Key Algorithms RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Reason for Revocation (Revocation Octet) RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Secret Key Encryption (S2K Usage Octet) RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Signature Notation Data Subpacket Notation Flags RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Signature Notation Data Subpacket Types RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Signature Subpacket Types RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Signature Types RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP String-to-Key (S2K) Types RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP Symmetric Key Algorithms RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
OpenPGP User Attribute Subpacket Types RFC 9580
Specification Required (Expert: Daniel Kahn Gillmor, Andrew Gallagher, Heiko Schäfer)
Operating System Names
Operating System Names RFC 952
First Come First Served
OS Specific Fact Names RFC 3659
First Come First Served
OS Specific Filetypes RFC 3659
First Come First Served
Optimized Link State Routing (OLSR) Protocol Message Types
OLSR Protocol Message Types RFC 3626
1-127: Standards Action.
128-255: Private/Local Use.
Opus Channel Mapping Families
Opus Channel Mapping Families RFC 7845, RFC 8486
Specification Required (Expert: Tim Terriberry, Ralph Giles)
OSPF Database Description (DD) Packet Flags
Database Description (DD) Packet Flags RFC 5838
Standards Action
P
Packet Sampling (PSAMP) Parameters
PSAMP selectorAlgorithm Identifiers RFC 5476
Expert Review (Expert: Unassigned)
PAL Package Types
PAL Package Types RFC 8295
Expert Review (Expert: Sean Turner)
Path Computation Element Protocol (PCEP) Numbers
ASSOCIATION Flag Field RFC 8697
Standards Action
ASSOCIATION Type Field RFC 8697
Standards Action
AUTO-BANDWIDTH-ATTRIBUTES Sub-TLV Types RFC 8733
0-65503: IETF Review.
65504-65535: Experimental Use.
AUTO-BANDWIDTH-CAPABILITY TLV Flag Field RFC 8733
Standards Action
Bidirectional LSP Association Group TLV Flag Field RFC 9059
Standards Action
BPI Object Error Code Field Internet Draft draft-ietf-pce-pcep-extension-native-ip-39
IETF Review
BPI Object Flag Field Internet Draft draft-ietf-pce-pcep-extension-native-ip-39
IETF Review
BPI Object Status Code Field Internet Draft draft-ietf-pce-pcep-extension-native-ip-39
IETF Review
BU Object Type Field RFC 8233
Standards Action
CCI Object Flag Field for MPLS Label RFC 9050
Standards Action
CCI Object Flag Field for Native-IP Internet Draft draft-ietf-pce-pcep-extension-native-ip-39
IETF Review
CLOSE Object Flag Field RFC 5440
IETF Review
CLOSE Object Reason Field RFC 5440
IETF Review
DISJOINTNESS-CONFIGURATION TLV Flag Field RFC 8800
Standards Action
Domain-ID TLV Domain Type RFC 8685
IETF Review
FLOWSPEC Object Flag Field RFC 9168
Standards Action
Generalized Endpoint Types RFC 8779
0-244: Standards Action.
245-255: Experimental Use.
GMPLS-CAPABILITY TLV Flag Field RFC 8779
Standards Action
H-PCE-CAPABILITY TLV Flag Field RFC 8685
Standards Action
H-PCE-FLAG TLV Flag Field RFC 8685
Standards Action
Inter-Layer Object Path Property Bits RFC 8282
IETF Review
IRO Subobjects RFC 5521
IETF Review
LOAD-BALANCING Object Flag Field RFC 5440
IETF Review
LSP Exclusion Subobject Flag Field RFC 9504
Standards Action
LSP Object Flag Field RFC 8231
Standards Action
LSP-ERROR-CODE TLV Error Code Field RFC 8231
Standards Action
LSP-EXTENDED-FLAG TLV Flag Field RFC 9357
Standards Action
LSPA Object Flag Field RFC 5440
IETF Review
METRIC Object Flag Field RFC 5440
IETF Review
METRIC Object T Field RFC 5440
IETF Review
MONITORING Object Flag Field RFC 5886
IETF Review
NO-PATH Object Flag Field RFC 5440
IETF Review
NO-PATH Object NI Field RFC 5440
IETF Review
NO-PATH-VECTOR TLV Flag Field RFC 5440
IETF Review
Notification Object RFC 5440
IETF Review
Notification Object Flag Field RFC 5440
IETF Review
Objective Function RFC 5541
1-1023: IETF Review.
1024-32767: First Come First Served.
32768-65535: Reserved for Private Use.
Open Object Flag Field RFC 5440
IETF Review
OVERLOAD Object Flag field RFC 5886
IETF Review
Path Protection Association Group TLV Flag Field RFC 8745
Standards Action
PATH-KEY Subobjects RFC 5520
IETF Review
PATH-SETUP-TYPE-CAPABILITY Sub-TLV Type Indicators RFC 8664
Standards Action
PCECC-CAPABILITY sub-TLV RFC 9050
Standards Action
PCEP Flow Specification TLV Type Indicators RFC 9168
0-255: Reserved.
256-64506: Specification Required.
64507-65531: First Come First Served.
65532-65535: Experimental Use.
PCEP Message Common Header Flag Field RFC 5440
IETF Review
PCEP Messages RFC 5440
0-251: IETF Review.
252-255: Experimental Use.
PCEP Objects RFC 5440
0-247: IETF Review.
248-255: Experimental Use.
PCEP Path Setup Types RFC 8408
IETF Review
PCEP SR-ERO NAI Types RFC 8664
IETF Review
PCEP SRv6-ERO NAI Types RFC 9603
IETF Review
PCEP TLV Type Indicators RFC 5440
0-65503: IETF Review.
65504-65535: Experimental Use.
PCEP-ERROR Object Error Types and Values RFC 5440
IETF Review
PCEP-ERROR Object Flag Field RFC 5440
IETF Review
PROC-TIME Object Flag Field RFC 5886
IETF Review
RP Object Flag Field RFC 5440
IETF Review
S2LS Object Flag Field RFC 8623
Standards Action
SCHED-PD-LSP-ATTRIBUTE TLV Opt Field RFC 8934
Standards Action
Schedule TLVs Flag Field RFC 8934
Standards Action
SR Capability Flag Field RFC 8664
Standards Action
SR-ERO Flag Field RFC 8664
Standards Action
SRP Object Flag Field RFC 8281, RFC 8786
Standards Action
SRv6 Capability Flag Field RFC 9603
Standards Action
SRv6-ERO Flag Field RFC 9603
Standards Action
STATEFUL-PCE-CAPABILITY TLV Flag Field RFC 8231
Standards Action
SVEC Object Flag Field RFC 5440
IETF Review
TE-PATH-BINDING TLV BT Field RFC 9604
Standards Action
TE-PATH-BINDING TLV Flag Field RFC 9604
Standards Action
WA Object Flag Field RFC 8780
Standards Action
Wavelength Allocation TLV Flag Field RFC 8780
Standards Action
Wavelength Restriction TLV Action Values RFC 8780
Standards Action
XRO Flag Field RFC 5521
IETF Review
XRO Subobjects RFC 5521
IETF Review
Peer-to-Peer Streaming Peer Protocol (PPSPP)
PPSP Peer Protocol Chunk Addressing Method Registry RFC 7574
IETF Review
PPSP Peer Protocol Content Integrity Protection Method Registry RFC 7574
IETF Review
PPSP Peer Protocol Merkle Hash Tree Function Registry RFC 7574
IETF Review
PPSP Peer Protocol Message Type Registry RFC 7574
IETF Review
PPSP Peer Protocol Option Registry RFC 7574
IETF Review
PPSP Peer Protocol Version Number Registry RFC 7574
IETF Review
Peer-to-Peer Streaming Tracker Protocol (PPSTP)
PPSTP Error Code Registry RFC 7846
IETF Review
PPSTP Request Type Registry RFC 7846
IETF Review
PPSTP Version Number Registry RFC 7846
IETF Review
Per Hop Behavior Identification Codes
Per Hop Behavior Identification Codes RFC 3140
Expert or area director review (Expert: Primary: Brian Carpenter; Secondary: David Black)
Performance Metrics
Performance Metric Name Elements - Method RFC 8911
Specification Required (Expert: Greg Mirsky, Michael Scharf)
Performance Metric Name Elements - Metric Type RFC 8911
Specification Required (Expert: Greg Mirsky, Michael Scharf)
Performance Metric Name Elements - Output RFC 8911
Specification Required (Expert: Greg Mirsky, Michael Scharf)
Performance Metric Name Elements - Spec RFC 8911
Specification Required (Expert: Greg Mirsky, Michael Scharf)
Performance Metric Name Elements - SubTypeMethod RFC 8911
Specification Required (Expert: Greg Mirsky, Michael Scharf)
Performance Metric Name Elements - Units RFC 8911
Specification Required (Expert: Greg Mirsky, Michael Scharf)
Performance Metrics Registry RFC 8911
Specification Required (Expert: Greg Mirsky, Michael Scharf)
Permanent IPv6 Multicast Group Identifiers
Group Identifier Values RFC 3307
Expert Review (Expert: Stig Venaas)
Point-to-Point (PPP) Protocol Field Assignments
IP Header Compression Configuration Option Suboption Types RFC 3544
Standards Action
IP-Compression-Protocol Types RFC 1332
IETF Review
IPv6-Compression-Protocol Types RFC 5172
IETF Review
NetBIOS Frames Control Protocol (NBFCP) Configuration Options RFC 2097
Expert Review (Expert: James Carlson)
PPP (IPXCP) Configuration Options RFC 1552
Expert Review (Expert: James Carlson)
PPP ATCP Configuration Option Types RFC 1378
Expert Review (Expert: James Carlson)
PPP Authentication Algorithms RFC 1994
Expert Review (Expert: James Carlson)
PPP Banyan Vines Configuration Option Types RFC 1763
Expert Review (Expert: James Carlson)
PPP Bridging Configuration Option Types RFC 3518, RFC 3818
IETF Review
PPP Bridging MAC Types RFC 3518, RFC 3818
IETF Review
PPP Bridging Spanning Tree RFC 3518, RFC 3818
IETF Review
PPP CCP Configuration Option Types RFC 1962, RFC 3818
IETF Review
PPP DLL Protocol Numbers RFC 1661, RFC 3818
0xxx-3xxx: IETF Review.
4xxx-7xxx: IETF Review.
8xxx-bxxx: IETF Review.
cxxx-fxxx: IETF Review.
PPP EAP Request/Response Types RFC 3748
Expert Review
PPP ECP Configuration Option Types RFC 1968
Expert Review (Expert: James Carlson)
PPP IPCP Configuration Option Types RFC 1332, RFC 3818
IETF Review
PPP IPv6CP Configuration Options RFC 5072, RFC 3818
IETF Review
PPP LCP Callback Operation Fields RFC 1570, RFC 3818
IETF Review
PPP LCP Configuration Option Types RFC 1661, RFC 3818
IETF Review
PPP LCP FCS-Alternatives RFC 1570, RFC 3818
IETF Review
PPP Link Control Protocol (LCP) and Internet Protocol Control Protocol (IPCP) Codes RFC 1661, RFC 3818
IETF Review
PPP Multilink Endpoint Discriminator Class RFC 1990, RFC 3818
IETF Review
PPP OSINLCP Configuration Option Types RFC 1377
Expert Review (Expert: James Carlson)
PPP Over Ethernet Versions RFC 2516, RFC 8822
Specification Required (Expert: Donald Eastlake)
PPP SDCP Configuration Options RFC 1963
Expert Review (Expert: James Carlson)
PPP TNCP Configuration Option Types RFC 6361
IETF Review
PPP Vendor Specific OUI Options RFC 5342
Registry closed by RFC 5342
ROHC Configuration Option Suboption Identifier Values RFC 3241
Point-to-Point Over Ethernet (PPPoE) Parameters
PPPoE Active Discovery Code fields (8-bit values) RFC 4937
First Come First Served
PPPoE TAG Values (16-bit values) RFC 4937
First Come First Served
Port Control Protocol (PCP) Parameters
PCP Opcodes RFC 6887
0-31, 127: Standards Action.
32-63: Specification Required.
(Expert: Dan Wing, Stuart Cheshire)
PCP Options RFC 6887
0-63, 127-191, 255: Standards Action.
64-95, 192-223: Specification Required.
(Expert: Dan Wing, Stuart Cheshire)
PCP Result Codes RFC 6887
0-127, 255: Standards Action.
128-191: Specification Required.
(Expert: Dan Wing, Stuart Cheshire)
Portable Symmetric Key Container (PSKC)
Algorithm URI Registry and Related PSKC Profiles RFC 6030
Specification Required (Expert: Unassigned)
Key Usage Registry RFC 6030
Expert Review (Expert: Unassigned)
PSKC Version Registry RFC 6030
Standards Action
Post Office Protocol version 3 (POP3) Extension Mechanism
POP3 Capabilities RFC 2449
Standards Track or IESG-approved Experimental RFC
POP3 Response Codes RFC 2449
RFC Specification Required
Posture Attribute (PA) Protocol Compatible with Trusted Network Connect (TNC) Parameters
PA-TNC Attribute Types RFC 5792
Specification Required (Expert: Steve Hanna, Jessica Fitzgerald-McKay, Charles Schmidt)
PA-TNC Error Codes RFC 5792
Specification Required (Expert: Steve Hanna, Jessica Fitzgerald-McKay, Charles Schmidt)
PA-TNC Remediation Parameters Types RFC 5792
Specification Required (Expert: Steve Hanna, Jessica Fitzgerald-McKay, Charles Schmidt)
Software Data Model Types RFC 8412
Specification Required (Expert: David Waltermire, Jessica Fitzgerald-McKay)
Posture Broker (PB) Protocol Compatible with Trusted Network Connect (TNC) Parameters
PA Subtypes RFC 5793
Specification Required (Expert: Steve Hanna, Jessica Fitzgerald-McKay, Charles Schmidt)
PB-TNC Error Codes RFC 5793
Specification Required (Expert: Steve Hanna, Jessica Fitzgerald-McKay, Charles Schmidt)
PB-TNC Message Types RFC 5793
Specification Required (Expert: Steve Hanna, Jessica Fitzgerald-McKay, Charles Schmidt)
PB-TNC Remediation Parameters Types RFC 5793
Specification Required (Expert: Steve Hanna, Jessica Fitzgerald-McKay, Charles Schmidt)
Power State Sets
DMTF Power State Set RFC 7326
Expert Review (Expert: Unassigned)
EMAN Power State Set RFC 7326
Expert Review (Expert: Unassigned)
IEEE1621 Power State Set RFC 7326
Expert Review (Expert: Unassigned)
PRECIS Derived Property Value
PRECIS Derived Property Value RFC 8264, RFC 5892
Expert Review (Expert: Patrik Fältström)
Preparation and Comparison of Internationalized Strings (PRECIS) Parameters
PRECIS Base Classes RFC 8264
RFC Required
PRECIS Profiles RFC 8264
Expert Review (Expert: Peter Saint-Andre (primary), Pete Resnick (secondary), Andrew Sullivan (backup))
Presence SRV Protocol Label Registry
Presence SRV Protocol Labels RFC 3861
Specification Required (Expert: Unassigned)
Printer MIB Interpreters Language Families - OBSOLETE
Printer MIB Interpreters Language Families - OBSOLETE RFC 3805
Expert Review (Expert: Ira McDonald, Michael Sweet)
Privacy Enhanced RTP Conferencing (PERC)
Datagram Transport Layer Security (DTLS) Tunnel Protocol Message Types for Privacy Enhanced Conferencing RFC 9185
IETF Review
Privacy Pass
Privacy Pass Token Types RFC 9577
Specification Required (Expert: Tommy Pauly, Chris Wood)
Probabilistic Routing Protocol using History of Encounters and Transitivity (PRoPHET)
Bundle Offer and Response B Flags RFC 6693
Specification Required (Expert: Unassigned)
Bundle Offer and Response TLV Flags RFC 6693
Specification Required (Expert: Unassigned)
DTN Routing Protocol Number RFC 6693
Specification Required (Expert: Unassigned)
Error TLV Flags RFC 6693
Specification Required (Expert: Unassigned)
Hello TLV Flags 0, 1, 2 RFC 6693
Specification Required (Expert: Unassigned)
Hello TLV Flags 3-7 RFC 6693
Specification Required (Expert: Unassigned)
PRoPHET Codes for Failure RFC 6693
Specification Required (Expert: Unassigned)
PRoPHET Codes for Success RFC 6693
Specification Required (Expert: Unassigned)
PRoPHET Header Flags RFC 6693
Specification Required (Expert: Unassigned)
PRoPHET Protocol Version RFC 6693
Specification Required (Expert: Unassigned)
PRoPHET Result Field RFC 6693
Specification Required (Expert: Unassigned)
PRoPHET TLV Type RFC 6693
Specification Required (Expert: Unassigned)
RIB Dictionary TLV Flags RFC 6693
Specification Required (Expert: Unassigned)
RIB Flags RFC 6693
Specification Required (Expert: Unassigned)
RIB TLV Flags RFC 6693
Specification Required (Expert: Unassigned)
Profile URIs
Profile URIs RFC 7284
First Come First Served (Specification Suggested)
Pronet 80 Type Numbers
Pronet 80 Type Numbers
IANA does not assign
Protocol for Carrying Authentication for Network Access (PANA) Parameters
AVP Codes RFC 5191, RFC 6786
Expert Review with Specification Required, or Standards Action (Expert: Alper Yegin)
AVP Flags RFC 5191, RFC 5872
Standards Action or IESG Approval
Message Flags RFC 5191, RFC 5872
Standards Action or IESG Approval
Message Types RFC 5191, RFC 5872
1-65519: IETF Review or IESG Approval.
65520-65535: IANA does not assign.
Protocol Independent Multicast (PIM) Parameters
PIM Address Encoding Types RFC 5384, RFC 7761, RFC 7887
IETF Review
PIM Address Family RFC 3973, RFC 7761
IESG Approval
PIM Designated Router Load-Balancing Hash Algorithms RFC 8775
IETF Review
PIM Flooding Mechanism Message Types RFC 8364
IETF Review
PIM Join Attribute Types RFC 5384
IETF Review
PIM Join/Prune Transport Types RFC 8059
IETF Review
PIM Message Types RFC 9436
IETF Review
PIM-Hello Options RFC 7761, RFC 3973
First Come First Served (expire in 1 year); Specification Required for Permanent assignments (Expert: Stig Venaas, Jeffrey (Zhaohui) Zhang)
PORT Message Types RFC 6559
RFC Required
PORT Option Types RFC 6559
RFC Required
Protocol Numbers
Assigned Internet Protocol Numbers RFC 5237, RFC 7045
IESG Approval or Standards Action
Protocol to Access White-Space (PAWS)
PAWS Error Code Registry RFC 7545
Specification Required (Expert: Unassigned)
PAWS Parameters Registry RFC 7545
Specification Required (Expert: Unassigned)
PAWS Ruleset ID Registry RFC 7545
Specification Required (Expert: Unassigned)
Provisioning Domains (PvDs)
Additional Information PvD Keys RFC 8801
Expert Review (Expert: Tommy Pauly, David Schinazi)
PvD Option Flags RFC 8801
Standards Action
PvD Split DNS Claims Internet Draft draft-ietf-add-split-horizon-authority-14
Expert Review (Expert: Unassigned)
Proxy Certificate Policy Languages
Proxy Certificate Policy Languages RFC 3820
IETF Standards Action
Pseudowire Name Spaces (PWE3)
Associated Channel Header TLV Registry (DELETED) RFC 5586, RFC 7026
Attachment Group Identifier (AGI) Type Registry RFC 4446
2-64: Expert Review.
65-127: IETF Review.
128-254: First Come First Served.
255: IETF Review.
(Expert: Stewart Bryant, Andrew Malis, Matthew Bocci)
Attachment Individual Identifier Type Registry RFC 4446
2-64: Expert Review.
65-127: IETF Review.
128-254: First Come First Served.
255: IETF Review.
(Expert: Stewart Bryant, Andrew Malis, Matthew Bocci)
CC/CV MEP-ID TLV Registry RFC 6428, RFC 7214
G-ACh Advertisement Protocol Application Registry RFC 7212, RFC 7214
G-ACh Advertisement Protocol TLV Registry RFC 7212, RFC 7214
G-ACh Advertisement Protocol: Ethernet Interface Parameters RFC 7213, RFC 7214
Header Compression Over MPLS PW Control Word Packet Type RFC 4901
Expert Review
ICC RG Parameter Types RFC 7275
0x0000: IETF Review.
0x003B-0x1FFF: Expert Review.
0x2000-0x2FFF: IETF Review.
0x3000-0x3FFE: First Come First Served.
0x3FFF: IETF Review.
(Expert: Stewart Bryant, Matthew Bocci)
L2VPN PE Stack Capabilities RFC 6575
IETF Review
MPLS Pseudowire Types Registry RFC 4446
31-1024: Expert Review.
1025-4096: IETF Review.
4097-32766: First Come First Served.
32767: IETF Review.
(Expert: Stewart Bryant, Andrew Malis, Matthew Bocci)
MPLS VCCV Connectivity Verification (CV) Types RFC 5085
IETF Review
MPLS VCCV Control Channel (CC) Types RFC 5085
IETF Review
Pseudowire Associated Channel Types RFC 4385, RFC 5586, RFC 7026, RFC 7214
Pseudowire Interface Parameters Sub-TLV type Registry RFC 4446
2-64: Expert Review.
65-127: IETF Review.
128-254: First Come First Served.
255: IETF Review.
(Expert: Stewart Bryant, Andrew Malis, Matthew Bocci)
Pseudowire Status Codes Registry RFC 4446
Expert Review (Expert: Stewart Bryant, Andrew Malis, Matthew Bocci)
Pseudowire Switching Point PE sub-TLV Type RFC 6073
0: IETF Review.
1-64: Expert Review.
65-127: IETF Review.
128-254: First Come First Served.
255: IETF Review.
(Expert: Primary: Stewart Bryant; secondary: Matthew Bocci)
PSN Tunnel Sub-TLV Name Space RFC 7965
IETF Review
PW Generic Protocol Flags RFC 6478
IETF Review
PW Status Refresh Reduction Configuration Message Sub-TLVs RFC 8237
0x00: IETF Review.
0x04-0x40: Expert Review.
0x41-0x7F: IETF Review.
0x80-0xFE: Expert Review.
0xFF: IETF Review.
(Expert: Stewart Bryant, Andrew Malis)
PW Status Refresh Reduction Control Messages RFC 8237
0x00: IETF Review.
0x03-0x40: Expert Review.
0x41-0x7F: IETF Review.
0x80-0xFE: Expert Review.
0xFF: IETF Review.
(Expert: Stewart Bryant, Andrew Malis)
PW Status Refresh Reduction Message Flags RFC 8237
IETF Review
PW Status Refresh Reduction Notification Codes RFC 8237
0x00000000: IETF Review.
0x00000008-0x00010000: Expert Review.
0x00010001-0x08000000: IETF Review.
0x08000001-0xFFFFFFFE: Expert Review.
0xFFFFFFFF: IETF Review.
(Expert: Stewart Bryant, Andrew Malis)
VCCV Extended CV Types RFC 7189
IETF Review
PT-EAP: Posture Transport (PT) Protocol For EAP Tunnel Methods
PT-EAP Versions RFC 7171
Standards Action
Public Data Network Numbers
Public Data Network Numbers RFC 1356
Registrations no longer accepted
Public Key Infrastructure using X.509 (PKIX) Parameters
Certification Authority Restriction Flags RFC 8659
RFC Required
Certification Authority Restriction Properties RFC 8659
Specification Required (Expert: Phillip Hallam-Baker)
PKIX SRV Protocol Labels RFC 4386
Specification Required (Expert: Unassigned)
Public Notary Transparency
Error Types RFC 9162
Specification Required (Expert: Unassigned)
Hash Algorithms RFC 9162
0x00-0xDF: Specification Required.
0xE0-0xEF: Experimental Use.
0xF0-0xFF: Private Use.
(Expert: Unassigned)
Log Artifact Extensions RFC 9162
0x0000-0xDFFF: Specification Required.
0xE000-0xEFFF: Experimental Use.
0xF000-0xFFFF: Private Use.
(Expert: Unassigned)
Log IDs RFC 9162
First Come First Served
Signature Algorithms RFC 9162
0x0000-0x0807: Specification Required.
0x0808-0xFDFF: Expert Review.
0xFE00-0xFEFF: Experimental Use.
0xFF00-0xFFFF: Private Use.
(Expert: Unassigned)
VersionedTransTypes RFC 9162
0x0100-0xDFFF: Specification Required.
0xE000-0xEFFF: Experimental Use.
0xF000-0xFFFF: Private Use.
(Expert: Unassigned)
Q
QoS NSIS Signal Layering Protocol (NSLP) QSPEC Parameters
Excess Treatment Parameter RFC 5975
Specification Required (Expert: Unassigned)
Extent of Restoration Field RFC 5976
Specification Required (Expert: Unassigned)
Object Types RFC 5975
Specification Required (Expert: Unassigned)
Parameter ID RFC 5975
Specification Required (Expert: Unassigned)
QSPEC Procedure RFC 5975
Specification Required (Expert: Unassigned)
QSPEC Type RFC 5975
Specification Required (Expert: Unassigned)
QSPEC Version RFC 5975
Specification Required (Expert: Unassigned)
Restoration Priority Field RFC 5976
Specification Required (Expert: Unassigned)
Time to Restore Field RFC 5976
Specification Required (Expert: Unassigned)
Y.1541 QoS Class Parameter RFC 5975
Specification Required (Expert: Unassigned)
Y.2171 Admission Priority Parameter RFC 5975
Specification Required (Expert: Unassigned)
QUIC
QUIC Frame Types RFC 9000
provisional: Expert Review.
provisional registration Date field update: First Come First Served.
permanent, 0x00-0x3f: Standards Action or IESG Approval.
permanent, greater than 0x3f: Specification Required.
first unassigned codepoint: Standards Action.
(Expert: Jana Iyengar, Ian Swett, Martin Thomson)
QUIC Transport Error Codes RFC 9000
provisional: Expert Review.
provisional registration Date field update: First Come First Served.
permanent, 0x00-0x3f: Standards Action or IESG Approval.
permanent, greater than 0x3f: Specification Required.
first unassigned codepoint: Standards Action.
(Expert: Jana Iyengar, Ian Swett, Martin Thomson)
QUIC Transport Parameters RFC 9000
provisional: Expert Review.
provisional registration Date field update: First Come First Served.
permanent, 0x00-0x3f: Standards Action or IESG Approval.
permanent, greater than 0x3f: Specification Required.
first unassigned codepoint: Standards Action.
values 31 * N + 27 (for integer values of N): Reserved.
(Expert: Jana Iyengar, Ian Swett, Martin Thomson)
QUIC Versions RFC 9000
provisional: Expert Review.
provisional registration Date field update: First Come First Served.
permanent: Specification Required.
first unassigned codepoint: Standards Action.
value 0x?a?a?a?a: Reserved.
(Expert: Jana Iyengar, Ian Swett, Martin Thomson)
R
Radius Types
Code Values for RADIUS Attribute 241.1, Frag-Status RFC 7499
RFC Required
Data Type RFC 8044
Standards Action
Entity Types (Attribute 127, Location-Information) RFC 5580
Expert Review (Expert: Alan DeKok, Mohit Sethi)
Location Profiles (Attribute 127, Location-Information) RFC 5580
Expert Review (Expert: Alan DeKok, Mohit Sethi)
Location-Capable Attribute (Attribute 131) RFC 5580
Expert Review (Expert: Alan DeKok, Mohit Sethi)
Operator Namespace Identifier for Attribute 126 RFC 5580
Expert Review (Expert: Alan DeKok, Mohit Sethi)
Option Codes Permitted in the Softwire46-Priority Attribute RFC 8658
IETF Review
Privacy Flags (Attribute 129, Basic-Location-Policy-Rules) RFC 5580
Expert Review (Expert: Alan DeKok, Mohit Sethi)
RADIUS Attribute Types RFC 3575, RFC 6929, RFC 8044
1-191: IETF Review.
192-240: Reserved for Private Use.
224-240: Implementation Specific.
241-246 (extended space, Unassigned): IETF Review.
241-246 (extended space, Reserved): Standards Action.
247-255: Reserved.
RADIUS IP Port Configuration and Reporting TLVs RFC 8045
Standards Action
RADIUS Packet Type Codes RFC 3575
IESG Approval
RADIUS Softwire46 Configuration and Multicast Attributes RFC 8658
Standards Action
Requested-Location-Info Attribute (Attribute 132) RFC 5580
Expert Review (Expert: Alan DeKok, Mohit Sethi)
Values for RADIUS Attribute 10, Framed-Routing RFC 2865, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 101, Error-Cause Attribute RFC 3575, RFC 5176, RFC 7930
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 13, Framed-Compression RFC 2865, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 133, Framed-Management-Protocol Attribute RFC 5607
Specification Required
Values for RADIUS Attribute 134, Management-Transport-Protection Attribute RFC 5607
Specification Required
Values for RADIUS Attribute 15, Login-Service RFC 2865, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 29, Termination-Action RFC 2865, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 40, Acct-Status-Type RFC 2866, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 45, Acct-Authentic RFC 2866, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 49, Acct-Terminate-Cause RFC 2866, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 6, Service-Type RFC 2865, RFC 3575
IETF Review
Values for RADIUS Attribute 61, NAS-Port-Type RFC 2865, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 64, Tunnel-Type RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 65, Tunnel-Medium-Type RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 7, Framed-Protocol RFC 2865, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 72, ARAP-Zone-Access RFC 2869, RFC 3575
Expert Review (Expert: Bernard Aboba)
Values for RADIUS Attribute 76, Prompt RFC 2869, RFC 3575
Expert Review (Expert: Bernard Aboba)
Real Time Streaming Protocol (RTSP)/1.0 Parameters
RTSP/1.0 Headers RFC 2326
Standards Document, preferably an IETF RFC
RTSP/1.0 Methods RFC 2326
Standards Action
RTSP/1.0 Option Tags RFC 2326
Specification Required (Expert: Unassigned)
RTSP/1.0 Status Codes RFC 2326
Standards Action
Real-time Inter-network Defense (RID)
RID Enumeration List RFC 6545
Expert Review (Expert: Unassigned)
XML Schemas Exchanged via RID RFC 6545
Specification Required (Expert: Unassigned)
Real-Time Streaming Protocol (RTSP) 2.0 Parameters
Accept-Credentials Hash Algorithms RFC 7826
Standards Action
Accept-Credentials Policies RFC 7826
Standards Action
Cache-Control Cache Directive Extensions RFC 7826
Standards Action or IESG Approval
Feature-tags RFC 7826
First Come First Served
Media Properties RFC 7826
Specification Required (Expert: Martin Stiemerling)
Notify-Reason Values RFC 7826
Specification Required (Expert: Martin Stiemerling)
Range Header Formats RFC 7826
Specification Required (Expert: Martin Stiemerling)
RSTP 2.0 Headers RFC 7826
Expert Review (Expert: Martin Stiemerling)
RTP-Info Header Parameters RFC 7826
Specification Required (Expert: Martin Stiemerling)
RTSP 2.0 Methods RFC 7826
Standards Action
RTSP 2.0 Status Codes RFC 7826
IETF Review
Seek-Style Policies RFC 7826
Specification Required (Expert: Martin Stiemerling)
Terminate-Reason Header Parameters RFC 7826
Specification Required (Expert: Martin Stiemerling)
Terminate-Reason Redirect Reasons RFC 7826
Expert Review (Expert: Martin Stiemerling)
Transport Modes RFC 7826
Standards Action
Transport Parameters RFC 7826
Specification Required (Expert: Martin Stiemerling)
Transport Protocol Identifier RFC 7826
Specification Required (Expert: Martin Stiemerling)
Real-Time Transport Protocol (RTP) Parameters
EKT Ciphers RFC 8870
Specification Required (Expert: Unassigned)
EKT Message Types RFC 8870
Specification Required (Expert: Unassigned)
FMT Values for PSFB Payload Types RFC 4585
Specification Required (Expert: Magnus Westerlund, Roni Even)
FMT Values for RTPFB Payload Types RFC 4585
Specification Required (Expert: Magnus Westerlund, Roni Even)
RAMS Response Code Space Registry RFC 6285
1xx: Informational.
2xx: Success.
3xx: Redirection.
4xx: RTP Receiver (RTP_Rx) Error.
5xx: Burst/Retransmission Source (BRS) Error.
Specification Required (Expert: Unassigned)
RAMS TLV Space Registry RFC 6285
Specification Required (Expert: Unassigned)
RTCP Control Packet Types (PT) RFC 5761, RFC 3550
1-191: Specification Required or Expert Review.
194-199: Specification Required or Expert Review.
200-223: Specification Required or Expert Review.
224-254: Specification Required or Expert Review.
(Expert: Magnus Westerlund)
RTP Compact Header Extensions RFC 8285
Expert Review (Expert: Magnus Westerlund)
RTP Payload Format Media Types RFC 4855
Standards Action or Expert Review (Expert: Unassigned)
RTP Payload Types (PT) for standard audio and video encodings - Closed RFC 3551
Registry closed; see RFC 3551, Section 3
RTP Profile Names RFC 3550
Standards Action or Expert Review (Expert: Unassigned)
RTP SDES Compact Header Extensions RFC 7941
Expert Review (Expert: Magnus Westerlund)
RTP SDES Item Types RFC 3550
Specification Required or Expert Review (Expert: Magnus Westerlund)
SFMT Values for RAMS Messages RFC 6285
Specification Required (Expert: Unassigned)
SMT Values for TOKEN Packet Type Registry RFC 6284
IETF Review
Sub-Report Block Type (SRBT) Values for the RSI Packet RFC 5760
Specification Required (Expert: Unassigned)
Realm Specific IP (RSIP) Parameters
RSIP Address Types RFC 3103
0: Reserved.
1-240: Specification Required.
241-255: Private Use.
(Expert: Unassigned)
RSIP Error Codes RFC 3103
Specification Required (Expert: Unassigned)
RSIP Local Flow Policies RFC 3103
0: Reserved.
1-240: Specification Required.
241-255: Private Use.
(Expert: Unassigned)
RSIP Message Types RFC 3103
0: Reserved.
1-240: Specification Required.
241-255: Private Use.
(Expert: Unassigned)
RSIP Methods RFC 3103
0: Reserved.
1-240: Specification Required.
241-255: Private Use.
(Expert: Unassigned)
RSIP Parameters RFC 3103
0: Reserved.
1-240: Specification Required.
241-255: Private Use.
(Expert: Unassigned)
RSIP Remote Flow Policies RFC 3103
0: Reserved.
1-240: Specification Required.
241-255: Private Use.
(Expert: Unassigned)
RSIP Tunnel Types RFC 3103
0: Reserved.
1-240: Specification Required.
241-255: Private Use.
(Expert: Unassigned)
RSIP Vendor IDs RFC 3103
0: Reserved.
1-240: Specification Required.
241-255: Private Use.
(Expert: Unassigned)
Realtime Traffic Flow Measurement (RTFM)
Pattern Matching Engine (PME) Opcodes RFC 2722
IETF Review
RTFM Attributes RFC 2722
0-511: IETF Review.
512-1023: First Come First Served.
1024 and above: Reserved for Private Use.
Registrar IDs
Registrar IDs
Assigned by ICANN
Registration Data Access Protocol (RDAP)
Bootstrap Service Registry for AS Number Space RFC 9224
Bootstrap Service Registry for Domain Name Space RFC 9224
Bootstrap Service Registry for IPv4 Address Space RFC 9224
Bootstrap Service Registry for IPv6 Address Space RFC 9224
Bootstrap Service Registry for Provider Object Tags RFC 8521
RDAP Extensions RFC 7480
Specification Required (Expert: Andy Newton, Scott Hollenbeck)
RDAP JSON Values RFC 9083, RFC 9537
Expert Review (Expert: Andy Newton, Scott Hollenbeck)
RDAP Provider Object Tags RFC 8521
First Come First Served
RDAP Reverse Search RFC 9536
Specification Required (Expert: Andy Newton, Scott Hollenbeck)
RDAP Reverse Search Mapping RFC 9536
Specification Required (Expert: Andy Newton, Scott Hollenbeck)
Registration Data Access Protocol (RDAP) Query Purpose Values RFC 9560
Specification Required (Expert: Scott Hollenbeck, Andrew Newton, Mario Loffredo, Pawel Kowalik)
Registry for the Session Initiation Protocol (SIP) NAPTR Resource Record Services Field
SIP Table of Mappings From Service Field Values to Transport Protocols RFC 3263
Standards Action
Relay User Equipment (RUE)
RUE Provider List RFC 9248
Expert Review (Expert: Brian Rosen)
Reliable Multicast Transport (RMT) FEC Encoding IDs and FEC Instance IDs
FEC Framework (FECFRAME) FEC Encoding IDs RFC 6363
IETF Review
ietf:rmt:fec:encoding - Fully-Specified FEC schemes (0-127) RFC 5052
IETF Review
ietf:rmt:fec:encoding - Under-Specified FEC schemes (128-255) RFC 5052
IETF Review
Reliable Server Pooling (RSerPool) Parameters
Aggregate Server Access Protocol (ASAP) Message Types RFC 5352
Specification Required (Expert: Unassigned)
Endpoint Handlespace Redundancy Protocol (ENRP) Message Types RFC 5353
Specification Required (Expert: Unassigned)
RSerPool Error Causes RFC 5354
Specification Required (Expert: Unassigned)
RSerPool Parameter Types RFC 5354
Specification Required (Expert: Unassigned)
RSerPool Policy Types RFC 5356
Specification Required (Expert: Unassigned)
Update Action Types RFC 5353
Specification Required (Expert: Unassigned)
Remote Attestation Procedures (RATS)
Entity Attestation Token (EAT) Intended Uses Internet Draft draft-ietf-rats-eat-30
Expert Review (Expert: Unassigned)
Remote Direct Data Placement
RDMA-CM Private Data Identifiers RFC 8797
Specification Required (Expert: Chuck Lever (primary), Tom Talpey (secondary))
Remote Direct Data Placement (RDDP)
DDP Errors RFC 6580
Standards Action
MPA Errors RFC 6580
Standards Action
RDMAP DDP Untagged Queue Numbers RFC 7306
Standards Action
RDMAP Errors RFC 6580
Standards Action
RDMAP Message Atomic Operation Subcodes RFC 7306
Standards Action
RDMAP Message Operation Codes RFC 6580
Standards Action
SCTP Function Codes for DDP Stream Session Control RFC 6580
Standards Action
Remote Framebuffer (RFB)
Remote Framebuffer Client-to-Server Message Types RFC 6143
Expert Review (Expert: Tristan Richardson)
Remote Framebuffer Encoding Types RFC 6143
Expert Review (Expert: Tristan Richardson, John Levine)
Remote Framebuffer Security Types RFC 6143
Expert Review (Expert: Tristan Richardson)
Remote Framebuffer Server-to-Client Message Types RFC 6143
Expert Review (Expert: Tristan Richardson)
Remote Procedure Call (RPC)
Network Identifier (r_netid) RFC 7530
Informational RFC
ONC RPC Netids (First Come First Served) RFC 5665
First Come First Served
ONC RPC Netids (Standards Action) RFC 5665
Standards Action
ONC RPC Uaddr Format Registry RFC 5665
First Come First Served or Standards Action
Protocol family (r_nc_protofmly) RFC 1833
Standards Action
Protocol name (r_nc_proto) RFC 1833
Standards Action
RPC Authentication Flavor Numbers RFC 5531
First Come First Served
RPC Authentication Status Numbers RFC 5531
First Come First Served
RPCSEC_GSS Structured Privilege Names Registry RFC 7861
Standards Action
Transport semantics (r_nc_semantics) RFC 1833
Standards Action
Remote Procedure Call (RPC) Program Numbers
RPC Program Numbers RFC 5531
Up to 100 numbers: First Come First Served.
101-1000 numbers: Specification Required.
More than 1000 numbers: IESG Approval.
(Expert: Unassigned)
Reputation Parameters
Reputation Applications RFC 7071
IETF Review or Specification Required (Expert: Unassigned)
Reserved IPv6 Interface Identifiers
Reserved IPv6 Interface Identifiers RFC 5453, RFC 7136
Standards Action
REsource LOcation And Discovery (RELOAD)
CoAP Usage for RELOAD Access Control Policy RFC 7650
Specification Required (Expert: Unassigned)
RELOAD Access Control Policies RFC 6940
Standards Action
RELOAD Application-ID RFC 6940
1-32767: Standards Action.
32768-61440: Expert Review.
(Expert: Marc Petit-Huguenin (primary), Cullen Jennings (secondary))
RELOAD Data Kind-ID RFC 6940
0x00000001-0x7fffffff: Standards Action.
0x8000000-0xf0000000: Expert Review.
(Expert: Marc Petit-Huguenin (primary), Cullen Jennings (secondary))
RELOAD Data Model RFC 6940
Standards Action
RELOAD Diagnostic Kind ID RFC 7851
Standards Action
RELOAD Diagnostics Flag RFC 7851
Standards Action
RELOAD Error Codes RFC 6940
Standards Action
RELOAD Extensions Registry RFC 6940
Specification Required (Expert: Marc Petit-Huguenin (primary), Cullen Jennings (secondary))
RELOAD Forwarding Option Registry RFC 6940
01-127: Standards Action.
128-254: Specification Required.
(Expert: Marc Petit-Huguenin (primary), Cullen Jennings (secondary))
RELOAD Message Codes RFC 6940
Standards Action
RELOAD Overlay Algorithm Types RFC 6940
IETF Review
RELOAD Overlay Link Protocol Registry RFC 6940
Standards Action
RELOAD Overlay Link Registry RFC 6940
Standards Action
RELOAD Probe Information Type Registry RFC 6940
Standards Action
RELOAD Services Registry RFC 7374
Specification Required (Expert: Unassigned)
Resource Public Key Infrastructure (RPKI)
BGPsec Algorithm Suites RFC 8608
Standards Action
BGPsec Capability RFC 8205
Standards Action
BGPsec_Path Flags RFC 8205
Standards Action
RPKI Repository Name Schemes RFC 6481
IETF Review
RPKI Signed Objects RFC 6488
Standards Action
rpki-rtr-afi Internet Draft draft-ietf-sidrops-8210bis-10
Expert Review (Expert: Unassigned)
rpki-rtr-error RFC 6810
Expert Review (Expert: Keyur Patel (Primary), John G. Scudder (Secondary))
rpki-rtr-pdu RFC 6810
RFC Required (Standards Track or Experimental)
Resource Reservation Protocol (RSVP) Parameters
Call Attributes Flags RFC 6001
RFC Required
Call Attributes TLV RFC 6001
RFC Required
Capability Object values RFC 5063
Standards Action
Class Names, Class Numbers, and Class Types RFC 3936
0-119: Standards Action.
120-123: Expert Review.
124-127: Reserved for Private Use.
128-183: Standards Action.
184-187: Expert Review.
188-191: Reserved for Private Use.
192-247: Standards Action.
248-251: Expert Review.
252-255: Reserved for Private Use.
(Expert: Dimitri Papadimitriou)
CONDITIONS Object Flags Internet Draft draft-ietf-mpls-ri-rsvp-frr-22
IETF Review
Error Codes and Globally-Defined Error Value Sub-Codes RFC 3936
0-239: Standards Action.
240-251: Expert Review.
252-255: Reserved for Private Use.
(Expert: Dimitri Papadimitriou)
Interface Id Error specification
Message Types RFC 3936
0-239: Standards Action.
240-255: Expert Review.
(Expert: Dimitri Papadimitriou)
VCAT Elementary Signal Registry RFC 6344
IETF Review
VCAT VCG Operation Actions RFC 6344
IETF Review
Virtual Destination Ports RFC 2207
0: Reserved.
1-10: Reserved.
11-8191: Not Defined.
8192-65535: Dynamic.
Resource Reservation Protocol-Traffic Engineering (RSVP-TE) Parameters
Attribute Flags RFC 5420, RFC 7570
IETF Review
Attributes TLV Space RFC 5420, RFC 7570
IETF Review
Record Route Object Sub-object Flags RFC 3209
Standards Action
RTM_SET Object Sub-Object Types RFC 8169
0-127: IETF Review.
128-191: First Come First Served.
Session Attribute Object Flags RFC 4859
IETF Review
Sub-TLV Types for WSON Processing Hop Attribute TLV RFC 7689
Standards Action or Specification Required (Expert: Unassigned)
Values for Wavelength Assignment Method field in WavelengthSelection Sub-TLV RFC 7689
Standards Action or Specification Required (Expert: Unassigned)
Resource-Oriented Lightweight Information Exchange (ROLIE) URN Parameters
ROLIE Information Types RFC 8322
Specification Required (Expert: David Waltermire, Stephen Banghart)
ROLIE URN Parameters RFC 8322
Specification Required (Expert: David Waltermire, Stephen Banghart)
RESTCONF Capability URNs
RESTCONF Capability URNs RFC 8040
IETF Review
RObust Header Compression (ROHC) Profile Identifiers
Profile Identifiers RFC 5795
Specification Required (Expert: Unassigned)
RObust Header Compression (ROHC) Suboption Identifier Values
ROHC Configuration Option Suboption Identifier Values RFC 3241
0-127: Standards Action.
128-254: Specification Required.
(Expert: Unassigned)
Route Distinguisher Type Field
Route Distinguisher Type Field RFC 4364
0-32767: First Come First Served.
32768-65535: IETF Review.
Routing in Fat Trees (RIFT)
RIFT Security Algorithms Internet Draft draft-ietf-rift-rift-24
Specification Required (Expert: Unassigned)
RIFTCommonAddressFamilyType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonHierarchyIndications Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonIEEE8021ASTimeStampType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonIPAddressType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonIPPrefixType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonIPv4PrefixType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonIPv6PrefixType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonKVTypes Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonPrefixSequenceType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonRouteType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonTieDirectionType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTCommonTIETypeType Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingCommunity Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingKeyValueTIEElement Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingKeyValueTIEElementContent Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingLIEPacket Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingLinkCapabilities Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingLinkIDPair Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingNeighbor Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingNodeCapabilities Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingNodeFlags Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingNodeNeighborsTIEElement Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingNodeTIEElement Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingPacketContent Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingPacketHeader Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingPrefixAttributes Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingPrefixTIEElement Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingProtocolPacket Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingTIDEPacket Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingTIEElement Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingTIEHeader Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingTIEHeaderWithLifeTime Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingTIEID Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingTIEPacket Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTEncodingTIREPacket Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
RIFTVersions Internet Draft draft-ietf-rift-rift-24
Minor change (per RFC-ietf-rift-rift-24, Section 7): Expert Review.
All other allocations: Specification Required.
(Expert: Unassigned)
Routing Information Protocol (RIP) Parameters
RIP Address Family Identifiers RFC 1058
Not defined
RIP Authentication Type RFC 1388
Not defined
RIP Commands RFC 1723
Not defined
RIP Update Headers RFC 1058
Not Defined
RIPNG Commands RFC 2080
Not defined
RIPNG Update Headers RFC 2080
Not defined
Routing Protocol for Low Power and Lossy Networks (RPL)
Consistency Check (CC) Flags RFC 6550
IETF Review
Destination Advertisement Object (DAO) Acknowledgment Flags RFC 6550
IETF Review
Destination Advertisement Object (DAO) Flags RFC 6550
IETF Review
Destination Cleanup Object (DCO) Flags RFC 9009
IETF Review
Destination Cleanup Object Acknowledgment (DCO) Acknowledgment Flags RFC 9009
IETF Review
DODAG Configuration Option Flags for MOP 0..6 RFC 6550, RFC 9008
IETF Review
DODAG Information Object (DIO) Flags RFC 6550
IETF Review
DODAG Informational Solicitation (DIS) Flags RFC 6550
IETF Review
Mode of Operation RFC 6550, RFC 9008
IETF Review
Objective Code Point (OCP) RFC 6550
IETF Review
Per-KIM Security Levels RFC 6550
IETF Review
RPL Control Codes RFC 6550
IETF Review
RPL Control Message Options RFC 6550
IETF Review
RPL Non-Rejection Status RFC 9010
IETF Review
RPL Rejection Status RFC 9010
IETF Review
RPL Target Option Flags RFC 6550, RFC 9010
IETF Review
Security Section Algorithm RFC 6550
IETF Review
Security Section Flags RFC 6550
IETF Review
Solicited Information Option Flags RFC 6550
IETF Review
Transit Information Option Flags RFC 6550
IETF Review
Routing Protocol for Low Power and Lossy Networks (RPL) Routing Metric/Constraint
Hop-Count Object Flag field RFC 6551
IETF Review
Node Type Field RFC 6551
IETF Review
NSA Object Flag field RFC 6551
IETF Review
Routing Metric/Constraint Common Header A field RFC 6551
IETF Review
Routing Metric/Constraint Common Header Flag field RFC 6551
IETF Review
Routing Metric/Constraint TLVs RFC 6551
First Come First Served
Routing Metric/Constraint Type RFC 6551
IETF Review
RSVP-TE OAM Configuration Registry
BFD Configuration Sub-TLV Types RFC 7487
IETF Review
Ethernet Sub-TLVs Sub-Registry RFC 7369
IETF Review
MPLS OAM Configuration Sub-TLV Types RFC 7487
IETF Review
OAM Function Flags Sub-Registry RFC 7260
IETF Review
OAM Sub-TLVs RFC 7260
0-31: IETF Review.
32-65533: IETF Review.
65534-65535: Reserved for Experimental Use.
OAM Types RFC 7260
IETF Review
Performance Monitoring Sub-TLV Types RFC 7487
IETF Review
RTP Control Protocol Extended Reports (RTCP XR) Block Type Registry
IDMS XR Block SPST Registry RFC 7272
Specification Required (Expert: Roni Even)
RTCP XR Block Type RFC 3611
Specification Required (Expert: Joerg Ott)
RTCP XR MOS Metric block - multimedia application Calculation Algorithm RFC 7266
Specification Required (Expert: Roni Even)
RTCP XR PDV block - PDV type RFC 6798
Specification Required (Expert: Roni Even)
RTP Control Protocol Extended Reports (RTCP XR) Session Description Protocol (SDP) Parameters Registry
RTCP XR SDP Parameters RFC 3611
Specification Required (Expert: Joerg Ott)
S
Scalable Adaptive Multicast (SAM) Baseline
SAM ALM Algorithm IDs RFC 7019
Expert Review (Expert: Marc Petit-Huguenin (primary), Thomas Schmidt, John Buford)
SAM ALM Error Codes RFC 7019
Expert Review (Expert: Marc Petit-Huguenin (primary), Thomas Schmidt, John Buford)
SAM ALM Message Codes RFC 7019
Expert Review (Expert: Marc Petit-Huguenin (primary), Thomas Schmidt, John Buford)
Secret Key Transaction Authentication for DNS (TSIG) Algorithm Names
TSIG Algorithm Names RFC 8945
IETF Review
Secure Shell (SSH) Protocol Parameters
Authentication Method Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Channel Connection Failure Reason Codes and Descriptions RFC 4250, RFC 9519
0x00000001-0xFDFFFFFF: Expert Review.
0xFE000000-0xFFFFFFFF: Reserved for Private Use.
(Expert: Peter Yee, Markus Stenberg)
Compression Algorithm Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Connection Protocol Channel Request Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Connection Protocol Channel Types RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Connection Protocol Global Request Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Connection Protocol Subsystem Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Disconnection Messages Reason Codes and Descriptions RFC 4250, RFC 9519
0x00000001-0xFDFFFFFF: Expert Review.
0xFE000000-0xFFFFFFFF: Reserved for Private Use.
(Expert: Peter Yee, Markus Stenberg)
Encryption Algorithm Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Extended Channel Data Transfer data_type_code and Data RFC 4250, RFC 9519
0x00000001-0xFDFFFFFF: Expert Review.
0xFE000000-0xFFFFFFFF: Reserved for Private Use.
(Expert: Peter Yee, Markus Stenberg)
Extension Names RFC 8308, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Key Exchange Method Names RFC 4250, RFC 9142, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
MAC Algorithm Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Message Numbers RFC 4250
Standards Action
Pseudo-Terminal Encoded Terminal Modes RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Public Key Algorithm Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Publickey Subsystem Attributes RFC 4819, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Publickey Subsystem Request Names RFC 4819, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Publickey Subsystem Response Names RFC 4819, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Publickey Subsystem Status Codes RFC 4819
0-191: Standards Action.
192-255: Reserved for Private Use.
Service Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Signal Names RFC 4250, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
SSH Public-Key File Header Tags RFC 4716, RFC 9519
Expert Review (Expert: Peter Yee, Markus Stenberg)
Security Event Token (SET)
Security Event Token Error Codes RFC 8935
Specification Required (Expert: Mike Jones, John Bradley)
Subject Identifier Formats RFC 9493
Specification Required (Expert: Prachi Jain)
Security External Enumeration Registry
Security External Enumeration Registry RFC 7495
Specification Required (Expert: Unassigned)
Security Label Format Selection
Security Label Format Selection Registry RFC 7569
Specification Required (Expert: Unassigned)
Security Parameters Index (SPI) Parameters
Security Parameters Index (SPI) RFC 1826, RFC 2402, RFC 2406, RFC 4302, RFC 4303
RFC Required
security.txt Fields
security.txt Fields RFC 9116
Expert Review (Expert: Yakov Shafranovich, Edwin Foudil)
Segment Routing
Segment Types RFC 9256
Specification Required (Expert: Ketan Talaulikar, Matthew Bocci)
SRv6 Endpoint Behaviors RFC 8986
0: Reserved.
1-32767: First Come First Served.
32768-34815: Private Use.
34816-65534: Reserved.
65535: Reserved.
Selective P-Multicast Service Interface (S-PMSI) Parameters
S-PMSI Join Message Type Field RFC 6513
IETF Review
Sender Policy Framework (SPF) Parameters
Modifier Names RFC 6652
Specification Required (Expert: Unassigned)
Sensor Measurement Lists (SenML)
Secondary Units RFC 8798
Expert Review (Expert: Ari Keränen)
SenML Features RFC 9100
Specification Required (Expert: Ari Keränen (primary), Carsten Bormann (secondary))
SenML Labels RFC 8428
Expert Review (Expert: Ari Keränen)
SenML Units RFC 8428
Expert Review (Expert: Ari Keränen)
Server Cache Synchronization Protocol (SCSP) Parameters
Protocol IDs RFC 2334
RFC, product of standards body, or Expert Review
Service Function Chaining (SFC) Active Operations, Administration, and Maintenance (OAM)
SF Identifier Types RFC 9516
0-191: IETF Review.
192-251: First Come First Served.
252-254: Private Use.
SFC Active OAM Message Types RFC 9516
0-31: IETF Review.
32-62: First Come First Served.
SFC Active OAM TLV Types RFC 9516
0-175: IETF Review.
176-239: First Come First Served.
240-251: Experimental Use.
252-254: Private Use.
SFC Echo Reply Modes RFC 9516
0-175: IETF Review.
176-239: First Come First Served.
240-251: Experimental Use.
252-254: Private Use.
SFC Echo Request Flags RFC 9516
Standards Action
SFC Echo Return Codes RFC 9516
0-191: IETF Review.
192-251: First Come First Served.
252-254: Private Use.
SFC Echo Types RFC 9516
0-175: IETF Review.
176-239: First Come First Served.
240-251: Experimental Use.
252-254: Private Use.
Service Function Chaining Service Function Types
Service Function Chaining Service Function Types RFC 9015
1-31: Standards Action.
32-64495: First Come First Served.
64496-65534: Private Use.
Service Location Protocol (SLP) Remote Service Discovery
SLP Remote Service Discovery RFC 3832
Expert Review (Expert: Unassigned)
Service Location Protocol Version 2 (SLPv2) Cryptographic BSD Codes
Cryptographic BSD Codes RFC 2608
IETF Review
Service Location Protocol Version 2 (SLPv2) Registrations
Service Location Protocol, Version 2 (SLPv2) Templates RFC 2609
Expert Review (Expert: Erik Guttman)
SLPv2 Extension IDs RFC 2608
Expert Review (Expert: Erik Guttman)
Service Location Protocol, Version 2 (SLPv2) Error Numbers
Error Numbers RFC 2608
Standards Action
Service Location Protocol, Version 2 (SLPv2) Function IDs
Function IDs RFC 2608
IETF Review
Service Names and Transport Protocol Port Numbers
Service Name and Transport Protocol Port Number Registry RFC 6335
(Expert: TCP/UDP: Joe Touch; Eliot Lear, Kumiko Ono, Wes Eddy, Brian Trammell, Jana Iyengar, and Michael Scharf SCTP: Michael Tuexen DCCP: Eddie Kohler and Yoshifumi Nishida)
Session Description Protocol (SDP) Parameters
"ack" and "nack" Attribute Values RFC 4585, RFC 8859
First Come First Served with a permanent, stable, and publically accessible document
addrtype RFC 8866
RFC Required
association-usage Name Registry RFC 8841
First Come First Served
attribute-name (formerly "att-field") RFC 8866, RFC 8864, RFC 8859
Specification Required (Expert: Flemming Andreasen)
bwtype RFC 8866, RFC 8859
Standards Action
Candidate Attribute Extensions RFC 8839
Specification Required (Expert: Christer Holmberg)
Codec Control Messages RFC 5104, RFC 8859
Specification Required (Expert: Stephan Wenger)
content SDP Parameters RFC 4796, RFC 8859
Specification Required (Expert: Christer Holmberg)
"cs-correlation" Attribute Values RFC 7195, RFC 8859
Specification Required (Expert: Bo Burman)
"depend" SDP Attribute Values RFC 5583, RFC 8859
Specification Required (Expert: Stephan Wenger)
enckey RFC 8866
REGISTRY OBSOLETED - No further registrations accepted
Key Methods RFC 4568
Standards Action
media RFC 8866
Standards Action
Media Clock Source Parameters RFC 7273, RFC 8859
Specification Required (Expert: Magnus Westerlund)
Media Stream Transports RFC 4568
Standards Action
Multiplexing Categories RFC 8859
Standards Action
nettype RFC 8866
RFC Required
proto RFC 8866
RFC Required
QoS Mechanism Tokens RFC 5432, RFC 8859
Specification Required (Expert: Christer Holmberg)
RID Attribute Parameters RFC 8851
Specification Required (Expert: Adam Roach)
"rtcp-fb" Attribute Values RFC 4585, RFC 8859
First Come First Served with permanent, stable, and publically accessible document.
SDP Capability Negotiation Configuration Parameters Registry RFC 5939, RFC 6871
IETF Review
SDP Capability Negotiation Option Tags RFC 5939, RFC 8859
IETF Review
SDP/RTSP key management protocol identifiers RFC 4567, RFC 8859
Specification Required (Expert: Magnus Westerlund)
Semantics for the "group" SDP Attribute RFC 5888, RFC 8859
Standards Action
Semantics for the "ssrc-group" SDP Attribute RFC 5576, RFC 8859
Standards Action
SRTP Crypto Suite Registrations RFC 4568
Standards Action
SRTP Session Parameters RFC 4568
Standards Action
Timestamp Reference Clock Source Parameters RFC 7273, RFC 8859
Specification Required (Expert: Magnus Westerlund)
Session Initiation Protocol (SIP) Common Log Format (CLF) Parameters
SIP CLF Transport Flag Values RFC 6873
IETF Review
SIP CLF Version Values RFC 6873
Standards Action
Session Initiation Protocol (SIP) Event Types Namespace
Event packages and Event template-packages RFC 3427, RFC 6665, RFC 5727
event template packages: Standards Action.
event packages: RFC Required with Designated Expert.
(Expert: Adam Roach)
Session Initiation Protocol (SIP) Parameters
Compression Schemes RFC 3486
Standards Action
Geolocation-Error Codes RFC 6442
Specification Required (Expert: Unassigned)
Global Feature-Capability Indicator Registration Tree RFC 6809
Specification Required (Expert: Paul Kyzivat (primary), Christer Holmberg (secondary))
Header Field Parameters and Parameter Values RFC 3968
IETF Review
Header Fields RFC 3261, RFC 3427, RFC 5727
Informational Header: Expert Review.
Standard Header: Standards Action.
(Expert: Adam Roach)
Identity Parameters RFC 8224
Standards Action
Identity-Info Algorithm Parameter Values RFC 8224
Deprecated and closed per RFC8224
Info Packages Registry RFC 6086
Specification Required (Expert: Adam Roach)
Methods and Response Codes RFC 3261, RFC 5727
Standards Action
Option Tags RFC 3261, RFC 5727
Standards Action
Precondition Types Used with SIP RFC 4032, RFC 3312
Standards Action
Preemption Namespaces RFC 4411
Standards Action
Priority Header Field Values RFC 6878
IETF Review
Proxy-Feature Feature-Capability Indicator Trees RFC 6809
Standards Action
Push Notification Service (PNS) RFC 8599
Specification Required (Expert: Christer Holmberg)
Reason Codes RFC 6665
Standards Action
Reason Protocols RFC 3326
Specification Required (Expert: Christer Holmberg)
Resource-Priority Namespaces RFC 4412, RFC 7134
IETF Review
Resource-Priority Priority-values RFC 4412, RFC 7134
IETF Review
Response Codes RFC 3261
RFC Required
Security Mechanism Names RFC 3329
IETF Review
Service-ID/Application-ID Labels RFC 6050
Specification Required (Expert: Unassigned)
SIP AlertMsg-Error Codes RFC 8876
Specification Required (Expert: Brian Rosen)
SIP Configuration Profile Types RFC 6080
Specification Required (Expert: Unassigned)
SIP Feature-Capability Indicator Registration Tree RFC 6809
IETF Review
SIP Forum User Agent Configuration Parameters RFC 6011
begins with 'sfua-': RFC Required.
all other names: First Come First Served.
SIP Privacy Header Field Values RFC 3323
IETF Review
SIP Transport RFC 7118
Standards Action
SIP/SIPS URI Parameters RFC 3969, RFC 5727
Standards Action
URI Purposes RFC 4575
Specification Required (Expert: Unassigned)
UUI Content Parameters RFC 7433
Standards Action
UUI Encoding Parameters RFC 7433
Standards Action
UUI Packages RFC 7433
Standards Action
Warning Codes (warn-codes) RFC 3261
RFC Required
Session Initiation Protocol (SIP) Privacy Header Values
SIP Privacy Header Values RFC 3323
IETF Review
Session Peering Provisioning Framework (SPPF) Organization Identifier Type Namespaces
SPPF OrgIdType Namespaces RFC 7877
RFC Required
Session Traversal Utilities for NAT (STUN) Parameters
STUN Attributes RFC 8489
0x0000-0x3FFF: IETF Review.
0x4000-0x7FFF: Expert Review.
0x8000-0xBFFF: IETF Review.
0xC000-0xFFFF: Expert Review.
(Expert: Dan Wing)
STUN Error Codes RFC 8489
IETF Review
STUN Methods RFC 8489, RFC 7983
0x000-0x07F: IETF Review.
0x080-0x0FF: Expert Review.
(Expert: Dan Wing)
STUN Password Algorithms RFC 8489
0x0000-0x7FFF: IETF Review.
0x8000-0xFFFF: Expert Review.
(Expert: Dan Wing)
STUN Security Features RFC 8489
Standards Action
Traversal Using Relays around NAT (TURN) Channel Numbers RFC 7983, RFC 8656
Standards Action
SFrame
SFrame Cipher Suites RFC 9605
0-0xEFFF: Specification Required.
0-0xEFFF: Standards Action.
0xF000-0xFFFF: Private Use.
(Expert: Richard Barnes (primary), Emad Omara (secondary))
Shim6 Parameters
Shim6 Error Codes RFC 5533
Standards Action
Shim6 Options RFC 5533
Standards Action
Shim6 Types RFC 5533
Standards Action
Shim6 Verification Methods RFC 5533
Standards Action
Sieve Extensions
ManageSieve Capabilities RFC 5804
Standards Track or IESG-Approved Experimental RFC
ManageSieve Response Codes RFC 5804
Standards Track or IESG-Approved Experimental RFC
Notification-Capability Parameters RFC 5435
Vendor-controlled: First Come First Served.
IETF-controlled: Specification Required.
(Expert: Barry Leiba, Alexey Melnikov)
Sieve Actions RFC 9122
Expert Review (Expert: Alexey Melnikov, Ken Murchison)
Sieve Environment Items RFC 5183
name begins with "vnd.": First Come First Served.
standardized (no "vnd." prefix): Standards track or experimental RFC.
Sieve Extensions RFC 5228
vendor-controlled (name begins with "vnd."): First Come First Served.
IETF-controlled (no "vnd." prefix): Standards track or IESG-approved experimental RFC.
Sieve Notification Mechanisms RFC 5435
Vendor-controlled: First Come First Served.
IETF-controlled: Specification Required.
(Expert: Unassigned)
Sieve URN Parameters RFC 6134
Specification Required (Expert: Unassigned)
SIG (0) Algorithm Numbers
SIG (0) Algorithm Numbers RFC 3755
Standards Action
Signaling Compression (SigComp) Registry
SigComp_version Namespace RFC 3320
Standards Action
Signaling User Adaptation Layer Assignments
Message Classes RFC 3057, RFC 4233
IETF Review
Message Parameters RFC 3331, RFC 4233, RFC 4666
IETF Review
Message Types - ASP State Maintenance (ASPSM) Messages (Value 3) RFC 4233, RFC 3331, RFC 4666, RFC 3868, RFC 4129, RFC 3057
IETF Review
Message Types - ASP Traffic Maintenance (ASPTM) Messages (Value 4) RFC 4233, RFC 3331, RFC 4666, RFC 3868, RFC 4129, RFC 3057
IETF Review
Message Types - Connection-Oriented Messages (Value 8) RFC 3868
IETF Review
Message Types - Connectionless Messages (Value 7) RFC 3868
IETF Review
Message Types - DPNSS/DASS2 Boundary Primitives Transport Messages (Value 13) RFC 4129
IETF Review
Message Types - Interface Identifier Management (IIM) Messages (Value 10) RFC 3331
IETF Review
Message Types - M2PA Messages (Value 11) RFC 4165
IETF Review
Message Types - Management (MGMT) Message (Value 0) RFC 4233, RFC 3331, RFC 4666, RFC 3868, RFC 4129, RFC 3057
IETF Review
Message Types - MTP2 User Adaptation (MAUP) Messages (Value 6) RFC 3331
IETF Review
Message Types - Q.921/Q.931 Boundary Primitives Transport (QPTM) Messages (Value 5) RFC 4233
IETF Review
Message Types - Routing Key Management (RKM) Messages (Value 9) RFC 4666
IETF Review
Message Types - Security Messages (Value 12) RFC 3788
IETF Review
Message Types - SS7 Signalling Network Management (SSNM) Messages (Value 2) RFC 4666, RFC 3868
IETF Review
Message Types - Transfer Messages (Value 1) RFC 4666
IETF Review
Message Types - V5 Boundary Primitives Transport (V5PTM) Messages (Value 14) RFC 3807
IETF Review
Simple Authentication and Security Layer (SASL) Mechanisms
SASL Mechanisms RFC 4422
First Come First Served for mechanisms. Expert Review with mailing list for family name registrations. For names beginning with "GS2-", see RFC 5801. For names beginning with "SCRAM-", see RFC7677. (Expert: Simon Josefsson)
SASL SCRAM Family Mechanisms RFC 7677
IETF Review with mailing list
Simple Certificate Enrollment Protocol (SCEP)
SCEP CA Capabilities RFC 8894
IETF Review
SCEP Message Types RFC 8894
Specification Required (Expert: Peter Gutmann)
Simple Gateway Monitoring Protocol (SGMP) Vendor Specific Codes (Obsolete)
SGMP Vendor Specific Codes (Obsolete) RFC 1028
No further registrations
Simple Mail Transfer Protocol (SMTP) Enhanced Status Codes Registry
Class Sub-Codes RFC 5248
Specification Required (Expert: Chris Newman)
Enumerated Status Codes RFC 5248
Specification Required (Expert: Chris Newman)
Subject Sub-Codes RFC 5248
Specification Required (Expert: Chris Newman)
Simple Network Management Protocol (SNMP) Number Spaces
Message Processing Models RFC 3411
Standards Action
Security Models RFC 3411
Standards Action
SNMP Transport Domains RFC 2578, RFC 3417, RFC 5590
Specification Required (Expert: Unassigned)
SnmpAuthProtocols RFC 3411
Standards Action
SnmpEngineID Formats RFC 3411, RFC 5343
1-127: Specification Required.
128-255: Enterprise-specific.
(Expert: Unassigned)
SnmpPrivProtocols RFC 3411
Standards Action
Simple Two-way Active Measurement Protocol (STAMP)
Return Path Control Code Flags RFC 9503
31-12: IETF Review.
11-8: First Come First Served.
7-4: Experimental Use.
3-0: Private Use.
Return Path Sub-TLV Types RFC 9503
1-175: IETF Review.
176-239: First Come First Served.
240-251: Experimental Use.
252-254: Private Use.
STAMP Return Codes RFC 8972
1-127: IETF Review.
128-239: First Come First Served.
240-249: Experimental Use.
250-254: Private Use.
STAMP Sub-TLV Types RFC 8972
1-175: IETF Review.
176-239: First Come First Served.
240-251: Experimental Use.
252-254: Private Use.
STAMP Synchronization Sources RFC 8972
1-127: IETF Review.
128-239: First Come First Served.
240-249: Experimental Use.
250-254: Private Use.
STAMP Timestamping Methods RFC 8972
1-127: IETF Review.
128-239: First Come First Served.
240-249: Experimental Use.
250-254: Private Use.
STAMP TLV Flags RFC 8972
IETF Review
STAMP TLV Types RFC 8972
1-175: IETF Review.
176-239: First Come First Served.
240-251: Experimental Use.
252-254: Private Use.
SMTP MTA Strict Transport Security (MTA-STS)
MTA-STS Policy Fields RFC 8461
Expert Review (Expert: Unassigned)
MTA-STS TXT Record Fields RFC 8461
Expert Review (Expert: Unassigned)
Snoop Datalink Types
Datalink Types RFC 3827
0-26: Reserved.
27-4294967295: First Come First Served.
SOCKS Methods
SOCKS Method Values RFC 1928
IESG Approval
Software ID Values
Software ID Entity Role Values RFC 9393
0-127: Standards Action with Expert Review.
128-255: Specification Required.
(Expert: Charles Schmidt, Jessica Fitzgerald-McKay, Henk Birkholz)
Software ID Link Ownership Values RFC 9393
0-127: Standards Action with Expert Review.
128-255: Specification Required.
(Expert: Charles Schmidt, Jessica Fitzgerald-McKay, Henk Birkholz)
Software ID Link Relationship Values RFC 9393
0-32767: Standards Action with Expert Review.
32768-65535: Specification Required.
(Expert: Charles Schmidt, Jessica Fitzgerald-McKay, Henk Birkholz)
Software ID Link Use Values RFC 9393
0-127: Standards Action with Expert Review.
128-255: Specification Required.
(Expert: Charles Schmidt, Jessica Fitzgerald-McKay, Henk Birkholz)
Software ID Version Scheme Values RFC 9393
0-16383: Standards Action with Expert Review.
16384-65535: Specification Required.
(Expert: Charles Schmidt, Jessica Fitzgerald-McKay, Henk Birkholz)
Special People Numbers Registry (SPNR)
Special People Numbers Registry
Not an IETF Registry. Contact IANA
Special-Purpose Autonomous System (AS) Numbers
Special-Purpose AS Numbers RFC 7249
IETF Review
Special-Use Domain Names
Special-Use Domain Names RFC 6761
Standards Action or IESG Approval
STARTTLS Validation Result Types
STARTTLS Validation Result Types RFC 8460
Expert Review (Expert: Alexander Brotman, Daniel Margolis, Viktor Dukhovni)
Straightforward-NAPTR (S-NAPTR) Parameters
S-NAPTR Application Protocol Tags RFC 3958, RFC 4848
Specification Required in form of an RFC (Expert: Jouni Korhonen)
S-NAPTR Application Service Tags RFC 3958, RFC 4848
Specification Required in form of an RFC (Expert: Jouni Korhonen)
Stream Control Transmission Protocol (SCTP) Parameters
Adaptation Code Points RFC 5061
IETF Review
Chunk Flags RFC 9260
RFC Required
Chunk Parameter Types RFC 9260
IETF Review
Chunk Types RFC 9260
IETF Review
Error Cause Codes RFC 9260
Specification Required (Expert: Michael Tuexen, Randall Stewart)
Error Detection Methods RFC 9653
Specification Required (Expert: Unassigned)
Hashed Message Authentication Code (HMAC) Identifiers RFC 4895
Specification Required (Expert: Unassigned)
SCTP Payload Protocol Identifiers RFC 9260
First Come First Served
Stringprep Profiles
Stringprep Profiles RFC 3454
IETF Review
Structure of Management Information (SMI) Numbers (MIB Module Registrations)
Interface Types (ifType) RFC 1213, RFC 2863, RFC 7224, RFC 8892
Expert Review (Expert: Dave Thaler (primary), Dan Romascanu (secondary))
Internet-standard MIB - Mail Monitoring
Internet-standard MIB - Network Services Monitoring
IPFIX-SELECTOR-MIB Functions RFC 6615
Expert Review (Expert: Unassigned)
MIB - Remote Network Monitoring RFC 2819, RFC 3737
Standards Action
SMI Experimental Codes RFC 4181, RFC 2578, RFC 1155
Experimental RFC
SMI Features RFC 2506
Not Defined ?
SMI mail Codes
Not Defined ?
SMI mib-2 snanauMIB Codes RFC 1666
Not Defined ?
SMI Network Management Directory Codes
SMI Network Management MGMT Codes RFC 2578
Not Defined ?
SMI pib PIB Codes RFC 3159
Standards Action
SMI Private Codes RFC 2578
For Private Enterprise Number (PEN) registration (prefix 1.3.6.1.4.1), see .
SMI Security Codes (including S/MIME, PKIX and LTANS)
Not Defined ?
SMI Security for Cryptographic Algorithms RFC 8411
Specification Required (Expert: Russ Housley (primary), Sean Turner (secondary))
SMI Security for Name System Designators Codes (nametypes)
Not Defined ?
SMI Security Services Codes
IETF Review
SMI SNMPv2 Codes RFC 2578, RFC 1902
IETF Review
SNMP Management Architecture - Message Processing Subsystem (SnmpMessageProcessingModel)
SNMP Management Architecture - Security Subsystem (SnmpSecurityModel)
SNMP-TLSTM HashAlgorithms RFC 9456
Expert Review (Expert: Russ Housley, Sean Turner)
spdActions RFC 4807
Specification Required (Expert: Wes Hardaker)
Transmission Number Values RFC 1213, RFC 8892
Specification Required (Expert: Dave Thaler (primary), Dan Romascanu (secondary))
Tunnel Types (tunnelType) RFC 4087, RFC 8675, RFC 8892
Expert Review (Expert: Dave Thaler (primary), Dan Romascanu (secondary))
Structured Data Exchange Format (SDXF)
Compression Methods for SDXF RFC 3072
RFC or equivalent
Encryption Methods for SDXF RFC 3072
RFC or equivalent
Subsequent Address Family Identifiers (SAFI) Parameters
SAFI Values RFC 4760
1-63: Standards Action.
64-127: First Come First Served.
128-240: Some recognized assignments below, others Reserved.
241-254: Reserved for Private Use.
SUN Remote Procedure Call (RPC) Numbers - Obsolete
SUN RPC Numbers RFC 1831
syslog Parameters
syslog Message Facilities RFC 5424
IETF Review
syslog Message Severities RFC 5424
IETF Review
syslog Structured Data ID Values RFC 5424
IETF Review
syslog Version Values RFC 5424
Standards Action
syslog-sign Hash Algorithm Values RFC 5848
IETF Review
syslog-sign Key Blob Type Values RFC 5848
IETF Review
syslog-sign Protocol Version Values RFC 5848
IETF Review
syslog-sign SG Field Values RFC 5848
IETF Review
syslog-sign Signature Scheme Values RFC 5848
IETF Review
System for Cross-domain Identity Management (SCIM) Schema URIs
SCIM Schema URIs for Data Resources RFC 7643
Expert Review (Expert: Phil Hunt, Morteza Ansari)
SCIM Server-Related Schema URIs RFC 7643
Expert Review (Expert: Phil Hunt, Morteza Ansari)
T
TCP Convert Protocol (Convert) Parameters
Convert Errors RFC 8803
1-127: IETF Review.
128-191: Specification Required.
192-255: Private Use.
(Expert: Mohamed Boucadair (primary), Olivier Bonaventure (secondary))
Convert TLVs RFC 8803
1-127: IETF Review.
128-191: Specification Required.
192-255: Private Use.
(Expert: Mohamed Boucadair (primary), Olivier Bonaventure (secondary))
Convert Versions RFC 8803
IETF Review
Telephony Routing over IP (TRIP) Parameters
TRIP Address Families RFC 3219
Expert Review (Expert: Jonathan Rosenberg)
TRIP Application Protocols RFC 3219
Expert Review (Expert: Jonathan Rosenberg)
TRIP Attributes RFC 3219
Specification Required (Expert: Unassigned)
TRIP Capabilities RFC 3219
Specification Required (Expert: Unassigned)
TRIP IP Telephony Administrative Domain (ITAD) Numbers RFC 3219, RFC 8602
First Come First Served
Telnet Options
CAST5_40_CFB64 (Type 8) and CAST128_CFB64 (Type 10) Telnet Encryption Types RFC 2950
First Come First Served
CAST5_40_OFB64 (Type 9) and CAST128_OFB64 (Type 11) Telnet Encryption Types RFC 2949
First Come First Served
DES3_CFB64 Telnet Encryption Type (Type 3) RFC 2947
First Come First Served
DES3_OFB64 Telnet Encryption Type (Type 4) RFC 2948
First Come First Served
DES_CFB64 Telnet Encryption Type (Type 1) RFC 2952
First Come First Served
DES_OFB64 Telnet Encryption Type (Type 2) RFC 2953
First Come First Served
DSS Authentication Type (Type 14) RFC 2943
Specification Required (Expert: Unassigned)
KEA_SJ (Type 12) and KEA_SJ_INTEG (Type 13) Authentication Types RFC 2951
Specification Required (Expert: Unassigned)
KERBEROS_V4 Telnet Authentication Type (Type 1) RFC 1411
First Come First Served
KERBEROS_V5 Telnet Authentication Type (Type 2) RFC 2942
Specification Required (Expert: Unassigned)
SRP Telnet Authentication Type (Type 5) RFC 2944
Specification Required (Expert: Unassigned)
Telnet Authentication Types (Option 37) RFC 2941
First Come First Served
Telnet Encryption Types (Option 38) RFC 2946
First Come First Served
Telnet Options RFC 855
IETF Review
Terminal Type Names
Terminal Type Names RFC 1091
Not defined?
The Binary Floor Control Protocol (BFCP) Parameters
Attributes RFC 8855
Specification Required (Expert: Brian Rosen, Tom Kristensen)
Error Codes RFC 8855
Specification Required (Expert: Brian Rosen, Tom Kristensen)
Primitives RFC 8855
Specification Required (Expert: Brian Rosen, Tom Kristensen)
Request Statuses RFC 8855
Specification Required (Expert: Brian Rosen, Tom Kristensen)
The Extensible Authentication Protocol Mechanism for the Generic Security Service Application Programming Interface (GSS-EAP) Parameters
GSS-EAP Context Flags RFC 7055
IETF Review or IESG Approval
GSS-EAP Error Codes RFC 7055
0-127: Standards Action.
128-255: Specification Required.
(Expert: Joseph Salowey)
GSS-EAP Subtoken Types RFC 7055
Expert Review (Expert: Joseph Salowey)
Time Zone Data Distribution Service (TZDIST) Parameters
TZDIST Identifiers RFC 7808
IETF Review
TZDIST Service Actions RFC 7808
Specification Required (Expert: Michael Douglass)
Timed Efficient Stream Loss-tolerant Authentication (TESLA) Parameters
Cryptographic Message Authentication Code (MAC) Function, TESLA-MAC Values RFC 4442
Expert Review (Expert: MSEC working group or its designated successor)
Cryptographic Pseudo-Random Function, TESLA-PRF Values RFC 4442
Expert Review (Expert: MSEC working group or its designated successor)
Signature Cryptographic Function, TESLA-SIG-CRYPTO-FUNC Values RFC 5776
Expert Review (Expert: MSEC working group or its designated successor)
Signature Encoding Algorithm, TESLA-SIG-ALGO Values RFC 5776
Expert Review (Expert: MSEC working group or its designated successor)
TLS-based Posture Transport Protocol (PT-TLS)
PT-TLS Error Codes RFC 6876
Specification Required (Expert: Unassigned)
PT-TLS Message Types RFC 6876
Specification Required (Expert: Unassigned)
Token Binding Protocol
Token Binding Extensions RFC 8471
Specification Required (Expert: Andrei Popov, Dirk Balfanz)
Token Binding Key Parameters RFC 8471
Specification Required (Expert: Andrei Popov, Dirk Balfanz)
Token Binding Types RFC 8471
Specification Required (Expert: Andrei Popov, Dirk Balfanz)
Trailer Types
Trailer Types RFC 6081
Specification Required (Expert: Unassigned)
Transfer Encodings
Transfer Encodings RFC 4289
Standards Action
Transmission Control Protocol (TCP) Header Flags
TCP Header Flags RFC 9293
Standards Action
Transmission Control Protocol (TCP) Parameters
Cryptographic Algorithms for TCP-AO Registration RFC 5926
RFC Publication After Expert Review
MPTCP Handshake Algorithms RFC 8684
Standards Action
MPTCP MP_TCPRST Reason Codes RFC 8684
Specification Required (Expert: Unassigned)
MPTCP Option Subtypes RFC 8684
Standards Action
TCP Alternate Checksum Numbers RFC 1146
Not defined
TCP Encryption Protocol Identifiers RFC 8547
IETF Review or Expert Review with RFC Required (Expert: Unassigned)
TCP Experimental Option Experiment Identifiers (TCP ExIDs) RFC 6994
First Come First Served
TCP Header Flags RFC 9293
Standards Action
TCP Option Kind Numbers RFC 2780
Standards Action or IESG Approval
tcpcrypt AEAD Algorithms RFC 8548
IETF Review or Expert Review with RFC Required (Expert: Unassigned)
Transparent Interconnection of Lots of Links (TRILL) Parameters
Extended RBridge Channel Payload Types RFC 7978
IETF Review
Extended RBridge Channel Security Types RFC 7978
IETF Review
Interested Labels Flag Bits RFC 7176, RFC 7357
IETF Review
Interested VLANs Flag Bits RFC 7176, RFC 7357
IETF Review
PORT-TRILL-VER Sub-TLV Capability Flags RFC 7176
IETF Review
RBridge Channel Error Codes RFC 7178
Standards Action
RBridge Channel Header Flags RFC 7178
IETF Review
RBridge Channel Protocols RFC 7178
0x002-0x0FF: Standards Action.
0x100-0xFF7: RFC Required.
0x100-0xFF7: IESG Approval.
TRILL APPsub-TLV Types under IS-IS TLV 251 Application Identifier 1 RFC 7357
IETF Review with additional requirements on the documentation of the use being registered as specified in Section 7.2 of RFC 7357.
TRILL Ethertypes RFC 8377
Ethertypes are assigned by the IEEE Registration Authority. Updates to this registry are coordinated with the designated expert. (Expert: Donald Eastlake (primary), Sue Hares (secondary))
TRILL Extended Header Flags RFC 7179
IETF Review
TRILL Multicast Addresses RFC 6325
IETF Review
TRILL Neighbor TLV NEIGHBOR RECORD Flags RFC 7176
Standards Action
TRILL Nicknames RFC 6325
RFC Required (single value) or IETF Review (single or multiple values)
TRILL OAM Return Codes RFC 7455
Standards Action
TRILL Pull Directory Errors RFC 8171
IETF Review
TRILL Pull Directory Query Types (QTYPEs) RFC 8171
IETF Review
TRILL-VER Sub-TLV Capability Flags RFC 7176
IETF Review
Transport Layer Security (TLS)
TLS Alerts RFC 8446
Standards Action
TLS Application-Layer Protocol Negotiation (ALPN) Protocol IDs RFC 7301, RFC 8447
Expert Review (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS Authorization Data Formats RFC 5878, RFC 8447
0-63: IETF Review.
64-223: Specification Required.
224-255: Reserved for Private Use.
(Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS CachedInformationType Values RFC 7924
0-63: Standards Action.
64-223: Specification Required.
(Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS Certificate Compression Algorithm IDs RFC 8879
1-255: IETF Review.
256-16383: Specification Required.
16384-65535: Experimental Use.
(Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS Certificate Status Types RFC 6961, RFC 8446
IETF Review
TLS Certificate Types RFC 6091, RFC 8446, RFC 8447
Specification Required (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS Cipher Suites RFC 8446, RFC 8447, RFC 9147
Specification Required (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS ClientCertificateType Identifiers RFC 5246, RFC 8447
0-63: Standards Action.
64-223: Specification Required.
224-255: Reserved for Private Use.
(Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS Compression Method Identifiers RFC 3749, RFC 8447
0-63: Standards Action.
64-223: Specification Required.
224-255: Reserved for Private Use.
(Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS ContentType RFC 8446, RFC 9443
Standards Action
TLS EC Curve Types RFC 8422
Specification Required (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS EC Point Formats RFC 8422
Specification Required (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS Exporter Labels RFC 5705, RFC 8447
Specification Required (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS ExtensionType Values RFC 8446, RFC 8447, RFC 9146
Specification Required (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS HandshakeType RFC 8446
Standards Action
TLS HashAlgorithm RFC 5246, RFC 8447, RFC 9155
0-63: Standards Action.
64-223: Specification Required.
224-255: Reserved for Private Use.
(Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS Heartbeat Message Types RFC 6520, RFC 8447
Expert Review (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS Heartbeat Modes RFC 6520, RFC 8447
Expert Review (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS KDF Identifiers RFC 9258
0x0000-0xfeff: Specification Required.
0xff00-0xffff: Private Use.
(Expert: Rich Salz, Nick Sullivan)
TLS PskKeyExchangeMode RFC 8446
Specification Required (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS SignatureAlgorithm RFC 5246, RFC 8447, RFC 9155
0-63: Standards Action.
64-223: Specification Required.
224-255: Reserved for Private Use.
(Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS SignatureScheme RFC 8446
Specification Required (Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS Supplemental Data Formats (SupplementalDataType) RFC 4680, RFC 8447
0-16385: Standards Action.
16386-65279: IETF Review.
65280-65535: Reserved for Private Use.
TLS Supported Groups RFC 8422, RFC 7919, RFC 8446, RFC 8447
0-255, 512-65535: Specification Required.
256-511: Specification Required.
(Expert: Yoav Nir, Rich Salz, Nick Sullivan)
TLS UserMappingType Values RFC 4681
0-63: Standards Action.
64-223: Specification Required.
224-255: Reserved for Private Use.
(Expert: Yoav Nir, Rich Salz, Nick Sullivan)
Tunnel Setup Protocol (TSP) Parameters
Tunnel Types RFC 5572
First Come First Served
Two-way Active Measurement Protocol (TWAMP) Parameters
TWAMP-Control Command Numbers RFC 5357, RFC 5938
IETF Review
TWAMP-Modes RFC 5618, RFC 5938, RFC 7717
IETF Review
U
Unidirectional Lightweight Encapsulation (ULE) Next-Header Registry
Mandatory Extension Headers (or link-dependent type fields) for ULE (Range 0-255 decimal) RFC 4326, RFC 7280
Specification Required (Expert: Gorry Fairhurst)
Optional Extension Headers for ULE (Range 256-511 decimal) RFC 4326, RFC 7280
Specification Required (Expert: Gorry Fairhurst)
Uniform Resource Identifier (URI) Schemes
"about" URI Tokens RFC 6694
First Come First Served
'geo' URI 'crs' Parameter Values RFC 5870
IESG Approval with Specification Required
'geo' URI Parameters RFC 5870
Specification Required (Expert: Unassigned)
'ipn' Scheme URI Allocator Identifiers Internet Draft draft-ietf-dtn-ipn-update-14
0-0xFFFF: Expert Review.
0x10000-0x3FFFFFFF: Expert Review.
0x40000000-0x7FFFFFFF: Experimental Use.
0x80000000-0xFFFFFFFF: Reserved.
>=0x100000000: Reserved.
(Expert: Unassigned)
'ipn' Scheme URI Default Allocator Node Numbers RFC 7116, Internet Draft draft-ietf-dtn-ipn-update-14
1-0x3FFF: Private Use.
0x4000-0xFFFFFFFE: Expert Review.
>=0x100000000: Invalid.
(Expert: Marc Blanchet, Keith Scott)
'ipn' Scheme URI Well-known Service Numbers for BPv7 Internet Draft draft-ietf-dtn-ipn-update-14
1-127: Private Use.
128-255: Standards Action.
0x0100-0x7FFF: Private Use.
0x8000-0xFFFF: Specification Required.
0x10000-0xFFFFFFFF: Private Use.
greater than 0x100000000: Reserved for future expansion.
(Expert: Unassigned)
POSH Service Names RFC 7711
Expert Review or IETF Review (Expert: Unassigned)
tel URI Parameters RFC 5341
Specification Required (Expert: Vijay Gurbani)
Uniform Resource Identifier (URI) Schemes RFC 7595, RFC 8615
Permanent: Expert Review.
Provisional: First Come First Served.
Historical: Expert Review.
(Expert: Graham Klyne)
Well-Known URIs RFC 8615
Specification Required (Expert: Mark Nottingham)
Uniform Resource Name (URN) Namespace for IETF Use
IETF URN Sub-namespace for Registered Protocol Parameter Identifiers RFC 3553
IETF Review
IETF URN Sub-namespaces RFC 6924
IETF Review
Uniform Resource Names (URN)
Alert URN Identifiers RFC 7462
Specification Required (Expert: Dale Worley)
Alert URN Providers RFC 7462
First Come First Served
Formal URN Namespaces RFC 8141
Expert Review, per Section 6 of RFC 8141. Fast-track procedure for standards organizations described in Section 6.3. (Expert: Peter Saint-Andre (team leader), Dale Worley, Juha Hakala, Stephanie Palek, Lars Svensson, Jyrki Ilva)
Informal URN Namespaces RFC 8141
Expert Review, per Section 6 of RFC 8141. (Expert: Peter Saint-Andre (team leader), Dale Worley, Juha Hakala, Stephanie Palek)
URN Service Labels RFC 5031
Standards Action
UUID
UUID Namespace IDs RFC 9562
Specification Required (Expert: Kyzer Davis, Brad Peabody)
UUID Subtypes RFC 9562
Standards Action With Expert Review (Expert: Kyzer Davis, Brad Peabody)
V
vCard Elements
vCard Parameter Values RFC 6350
Expert Review and RFC Required (Expert: Primary: Simon Perreault; Backup: Peter Saint-Andre)
vCard Parameters RFC 6350
No namespace specified: Expert Review and RFC Required.
Vendor namespace specified: First Come First Served.
(Expert: Primary: Simon Perreault; Backup: Peter Saint-Andre)
vCard Properties RFC 6350
No namespace specified: Expert Review and RFC Required.
Vendor namespace specified: First Come First Served.
(Expert: Primary: Simon Perreault; Backup: Peter Saint-Andre)
vCard Property Values RFC 6350
Expert Review and RFC Required (Expert: Primary: Simon Perreault; Backup: Peter Saint-Andre)
vCard Value Data Types RFC 6350
Expert Review and RFC Required (Expert: Primary: Simon Perreault; Backup: Peter Saint-Andre)
VCDIFF Secondary Compressor ID Values
VCDIFF Secondary Compressor ID Values RFC 3284
RFC or peer-reviewed permanent and readily available reference. Subject to the above, name assignments are First Come First Served.
Vectors of Trust (VoT)
Vectors of Trust Components RFC 8485
Specification Required (Expert: Justin Richer, Leif Johansson)
'version' symbols used within the ISUP and QSIG
application/ISUP symbols RFC 3204
Expert Review (Expert: Jon Peterson)
application/QSIG symbols RFC 3204
Expert Review (Expert: Jon Peterson)
Virtual Network Computing (VNC) Uniform Resource Identifier (URI)
VNC URI Connection Channel Types RFC 7869
First Come First Served
VNC URI ID Hash Algorithms RFC 7869
First Come First Served
VNC URI Parameters RFC 7869
First Come First Served
W
WAVE and AVI Codec Registries (Historic Registry)
WAVE and AVI Codec Registries RFC 2361
IANA does not assign. Republication of values.
Web Authentication (WebAuthn)
WebAuthn Attestation Statement Format Identifiers RFC 8809
Specification Required (Expert: Mike Jones, Giridhar Mandyam)
WebAuthn Extension Identifiers RFC 8809
Specification Required (Expert: Mike Jones, Giridhar Mandyam)
Web Push Parameters
VAPID Authentication Scheme Parameters RFC 8292
Specification Required (Expert: Martin Thomson)
Web Push Identifiers RFC 8030
IETF Review
Webfinger Parameters
Webfinger Properties RFC 7033
Expert Review (Expert: Unassigned)
WebRTC-HTTP ingestion protocol (WHIP)
WebRTC-HTTP ingestion protocol (WHIP) Extension URNs Internet Draft draft-ietf-wish-whip-16
Specification Required (Expert: Unassigned)
WebRTC-HTTP ingestion protocol (WHIP) URNs Internet Draft draft-ietf-wish-whip-16
Specification Required (Expert: Unassigned)
WebSocket Protocol Registries
WebSocket Close Code Number Registry RFC 6455
1000-2999: Standards Action, Specification Required or IESG Review.
3000-3999: First Come First Served.
(Expert: Alexey Melnikov)
WebSocket Extension Name Registry RFC 6455
First Come First Served
WebSocket Framing Header Bits Registry RFC 6455
Standards Action
WebSocket Opcode Registry RFC 6455
Standards Action
WebSocket Subprotocol Name Registry RFC 6455, RFC 7936, RFC 8864
First Come First Served
WebSocket Version Number Registry RFC 6455
Standard Version Numbers: IETF Review.
Interim Version Numbers: Expert Review.
(Expert: HYBI WG Chairs)
Wrapped Encapsulating Security Payload (WESP) Flags
WESP Flags RFC 5840
IETF Review
WESP Version Numbers RFC 5840
Standards Action
X
X.25 Type Numbers
X.25 Type Numbers
Not assigned by IANA
Xerox Network System (XNS) Protocol Types
Assigned internet packet types
Not assigned by IANA
Assigned well-known socket numbers
Not assigned by IANA
XML Evidence Record Syntax (XMLERS)
Cryptographic Information Type RFC 6283
RFC Required
Time-Stamp Token Type RFC 6283
RFC Required
XML Security URIs
XML Security URIs RFC 9231
Specification Required (Expert: Donald Eastlake, Alexey Melnikov)
Y
YANG Geographic Location Parameters
Geodetic System Values RFC 9179
First Come First Served
YANG Module Tags
IETF YANG Module Tags RFC 8819
IETF Review
YANG Module Tag Prefixes RFC 8819
Specification Required (Expert: Christian Hopps, Lou Berger, Dean Bogdanovic)
YANG Modules
iana-bfd-types YANG Module RFC 9127, RFC 5880
See BFD Diagnostic Codes and BFD Authentication Types registries.
iana-bgp-l2-encaps YANG Module RFC 9291, RFC 6624
See BGP Layer 2 Encapsulation Types registry.
iana-crypt-hash YANG Module RFC 7317
Expert Review (Expert: Kent Watsen)
iana-dns-class-rr-type YANG Module RFC 9108
See DNS CLASSes and Resource Record (RR) TYPEs registries.
iana-dots-signal-channel YANG Module RFC 9132
See the DOTS Status Codes, DOTS Conflict Status Codes, DOTS Conflict Cause Codes, and DOTS Attack Status Codes registries.
iana-hardware YANG Module RFC 8348
See IANA-ENTITY-MIB MIB module.
iana-if-type YANG Module RFC 1213, RFC 2863, RFC 7224, RFC 8892
This is one of the available formats of the Interface Types (ifType) registry.
iana-msd-types YANG Module Internet Draft draft-ietf-mpls-msd-yang-12
See the IGP MSD-Types registry.
iana-pseudowire-types YANG Module RFC 9291, RFC 4446
See MPLS Pseudowire Types registry.
iana-routing-types YANG Module RFC 8294, RFC 2453, RFC 2677, RFC 2858, RFC 4760
See Address Family Numbers and Subsequent Address Family Identifiers (SAFI) Values registries.
iana-ssh-encryption-algs YANG Module Internet Draft draft-ietf-netconf-ssh-client-server-40
See the Encryption Algorithm Names registry.
iana-ssh-key-exchange-algs YANG Module Internet Draft draft-ietf-netconf-ssh-client-server-40
See the Key Exchange Method Names registry.
iana-ssh-mac-algs YANG Module Internet Draft draft-ietf-netconf-ssh-client-server-40
See the MAC Algorithm Names registry.
iana-ssh-public-key-algs YANG Module Internet Draft draft-ietf-netconf-ssh-client-server-40
See the Public Key Algorithm Names registry.
iana-tls-cipher-suite-algs YANG Module RFC 9645
See the TLS Cipher Suites registry.
iana-tunnel-type YANG Module RFC 4087, RFC 8675, RFC 8892
This is one of the available formats of the Tunnel Types (tunnelType) registry.
YANG Parameters
YANG Module Names RFC 6020, RFC 8407
RFC Required
YANG SIDs
IETF YANG-SID Modules RFC 9595
Expert Review (Expert: Michel Veillette, Alexander Pelov, Laurent Toutain)
IETF YANG-SID Ranges RFC 9595
0: IESG Approval.
1000: RFC and Expert Review Required.
60000: Reserved for Experimental Use.
100000: RFC and Expert Review Required.
300000: Reserved.
(Expert: Michel Veillette, Alexander Pelov, Laurent Toutain)
YANG-SID Mega-Ranges RFC 9595
Expert Review (Expert: Michel Veillette, Alexander Pelov, Laurent Toutain)