Internet Assigned Numbers Authority

Mobile IPv4 Numbers

Last Updated
2023-08-24
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Registries included below

Mobile IP Message Types

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC5944]
Note
Mobile IP defines a set of new control messages, sent with UDP or TCP
[RFC5944] using well-known port number 434.  Currently, the following
are defined.
Available Formats

CSV
Value Message Types Reference
1 Registration Request [RFC5944]
2 Unassigned
3 Registration Reply [RFC5944]
4 Tunnel Data [RFC3519]
5-6 Unassigned
7 Registration Revocation [RFC3543]
8-14 Unassigned
15 Revocation Acknowledgment [RFC3543]
16 Handoff Request [RFC4881]
17 Handoff Reply [RFC4881]
18 Regional Registration Request [RFC4857]
19 Regional Registration Reply [RFC4857]
20 Fast Binding Update (FBU) [RFC4988]
21 Fast Binding Acknowledgment (FBAck) [RFC4988]
22 Generic Notification [RFC6098]
23 Generic Notification Acknowledgement [RFC6098]
24 Home Test Init message [RFC6521]
25 Care-of Test Init message [RFC6521]
26 Home Test message [RFC6521]
27 Care-of Test message [RFC6521]
28-254 Unassigned
255 Message for Experimental use [RFC4064]

Extensions to Mobile IP Registration Messages

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC5944][RFC6098]
Note
The first set consists of those Extensions which may appear only
in Mobile IP control messages (those sent to and from UDP port
number 434).
Available Formats

CSV
Value Name Permitted for Notification Messages (Y/N) Reference
0 One-byte Padding N [RFC5944]
32 Mobile-Home Authentication Y [RFC5944]
33 Mobile-Foreign Authentication Y [RFC5944]
34 Foreign-Home Authentication Y [RFC5944]
36 Generalized Mobile IP Authentication N [RFC4721]
38 Critical Vendor/Organization Specific Extension(CVSE) N [RFC3115]
40 MN-FA-KeyGen Request N [RFC3957]
41 MN-FA-KeyGen Reply N [RFC3957]
42 MN-HA-KeyGen Request N [RFC3957]
43 MN-HA-KeyGen Reply N [RFC3957]
44 UDP Tunnel Reply Extension N [RFC3519]
45 FA Error Extension N [RFC4636]
46 GFA IP Address Extension N [RFC4857]
47 PMIPv4 Non-skippable Extension N [RFC5563]
48 GRE Key Extension N [RFC6245]
49 Route Optimization Extensions N [RFC6521]
50 Route Optimization Data N [RFC6521]
51-126 Unassigned
127 Non-skippable Extension for Experimental use N [RFC4064]
128 Deprecated (2001-08-31)
129 SKIP Firewall Traversal Extension N [RFC2356]
130 Encapsulating Delivery Style Extension N [RFC3024]
131 Mobile Node NAI N [RFC2794]
132 MN-FA Challenge Extension N [RFC4721]
134 Normal Vendor/Organization Specific Extension (NVSE) N [RFC3115]
136 NAI Carrying Extension N [RFC3846]
137 Revocation Support N [RFC3543]
138 Generalized Link Layer Address Registration Extension N [RFC4881]
139 Dynamic HA Extension N [RFC4433]
140 Hierarchical Foreign Agent Extension N [RFC4857]
141 Replay Protection Style N [RFC4857]
142 Regional Registration Lifetime Extension N [RFC4857]
144 UDP Tunnel Request Extension N [RFC3519]
145 Message String Extension Y [RFC4917]
147 PMIPv4 Skippable Extension N [RFC5563]
148 Mobile Network Extension N [RFC5177]
149 Trusted Networks Configured (TNC) Extension N [RFC5265]
150 Reserved
151 Service Selection Extension N [RFC5446]
152 Dual Stack (DSMIPv4) Extension N [RFC5454]
153 Mobile Router Route Optimization Indication N [RFC6521]
154 Multipath-Extension N [RFC7629]
155-254 Unassigned
255 Skippable Extension for Experimental use N [RFC4064]

Mobile IP Extensions for ICMP Router Discovery messages

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC5944]
Note
The second set consists of those extensions which may appear only
in ICMP Router Discovery messages RFC1256.
Available Formats

CSV
Value Name Reference
0 One-byte Padding (encoded with no Length nor Data field) [RFC5944]
1-15 Unassigned
16 Mobility Agent Advertisement [RFC5944]
17-18 Unassigned
19 Prefix-Lengths [RFC5944]
20 Link-Layer Address Option Format (LLA) [RFC4988]
21 New IPv4 Address [RFC4988]
22 New Router Prefix Information [RFC4988]
23 Unassigned
24 Challenge Extension [RFC4721]
25-126 Unassigned
127 Non-skippable Adv. Extension for Experimental use [RFC4064]
128-135 Unassigned
136 NAI Carrying Extension [RFC3846]
137 CARD MN-AR signature option [RFC4065]
138 CARD Request option [RFC4065]
139 CARD Reply option [RFC4065]
140 Generalized Link Layer Address Advertisement Extension [RFC4881]
141-254 Unassigned
255 Skippable Adv. Extension for Experimental use [RFC4064]

Extension Subtypes

Note
To conserve the type number space, extension types may have sub-types.
Currently the following extensions have subtypes defined:

Generalized Authentication Extension (Value 36)

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC4721]
Available Formats

CSV
Subtype Value Name Reference
1 MN-AAA Authentication subtype [RFC4721]
2 FA-FA authentication [RFC4857]
3 MN-GFA authentication [RFC4857]
4 MN-PAR Auth Extension [RFC4988]

KeyGen Request/Reply subtypes (Value 40-43)

Registration Procedure(s)
Standards Action
Reference
[RFC3957]
Available Formats

CSV
Subtype Value Name Reference
1 KeyGen Request/Reply from AAA [RFC3957]
7 Not to be allocated - used by early implementations

UDP Tunnel Reply Extension (Value 44)

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC3519]
Available Formats

CSV
Subtype Value Name Reference
0 Regular UDP Tunnel Reply Extension [RFC3519]

FA Error Extension subtypes (value 45)

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC4636]
Available Formats

CSV
Subtype Value Name Reference
0 FA Error Indication to MN [RFC4636]

GRE Key Extension subtypes (value 48)

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC6245]
Available Formats

CSV
Subtype Value Name Reference
0 GRE Key Extension [RFC6245]
1-255 Unassigned

NAI Carrying Extension Sub-types (Value 136)

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC3846]
Available Formats

CSV
Subtype Value Name Reference
1 HA Identity [RFC3846]
2 AAAH identity [RFC3846]
3 Foreign Agent NAI (FA-NAI) [RFC4857]

Dynamic HA Extension subtypes (Value 139)

Registration Procedure(s)
IETF Review
Reference
[RFC4433]
Available Formats

CSV
Subtype Value Name Reference
1 Requested HA Extension [RFC4433]
2 Redirected HA Extension [RFC4433]

UDP Tunnel Request Extension (Value 144)

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC3519]
Available Formats

CSV
Subtype Value Name Reference
0 Regular UDP Tunnel Request Extension [RFC3519]

Mobile Network Extension subtypes (Value 148)

Registration Procedure(s)
Standards Action or IESG Approval
Reference
[RFC5177]
Available Formats

CSV
Value Name Reference
0 Mobile Network Request Extension [RFC5177]
1 Explicit Mode Acknowledgement Extension [RFC5177]
2 Implicit Mode Acknowledgement Extension [RFC5177]
3-255 Unassigned

Trusted Networks Configured (TNC) Extension subtypes (Value 149)

Registration Procedure(s)
Specification Required
Expert(s)
Unassigned
Reference
[RFC5265]
Available Formats

CSV
Value Name Reference
0 Trusted Networks Configured (TNC) [RFC5265]
1-255 Unassigned

Multipath Extension subtypes (Value 154)

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC7629]
Available Formats

CSV
Subtype Value Name Reference
0 Reserved [RFC7629]
1 Multipath Extension [RFC7629]
2 Flow-Binding Extension [RFC7629]
3-254 Unassigned
255 Reserved [RFC7629]

Code Values for Mobile IP Registration Reply Messages

Expert(s)
Unassigned
Reference
[RFC5944][RFC6521]
Available Formats

CSV
Range Guideline Registration Procedures
0-8 Success Codes None
9-63 Allocation guidelines not specified None
64-127 Error Codes from the Foreign Agent Expert Review
128-192 Error Codes from the Home Agent Expert Review
193-200 Error Codes from the Gateway Foreign Agent Expert Review
201-210 Error Codes form the Correspondent Node Expert Review
211-255 Allocation guidelines not specified None

Registration successful Code Values

Registration Procedure(s)
None
Reference
[RFC5944]
Available Formats

CSV
Value Name Reference
0 registration accepted [RFC3344]
1 registration accepted, but simultaneous mobility bindings unsupported [RFC3344]
2 Concurrent registration (pre-accept) [RFC6521]
3-8 Unassigned

Registration denied by the foreign agent

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5944]
Available Formats

CSV
Value Name Reference
64 reason unspecified [RFC3344]
65 administratively prohibited [RFC3344]
66 insufficient resources [RFC3344]
67 mobile node failed authentication [RFC3344][RFC4721]
68 home agent failed authentication [RFC3344]
69 requested Lifetime too long [RFC3344]
70 poorly formed Request [RFC3344]
71 poorly formed Reply [RFC3344]
72 requested encapsulation unavailable [RFC3344]
73 reserved and unavailable [RFC3344]
74 request reverse tunnel unavailable [RFC3024]
75 reverse runnel is mandatory and 'T' bit not set [RFC3024]
76 mobile node too distant [RFC3024]
77 invalid care-of address [RFC3344]
78 registration timeout [RFC3344]
79 delivery style not supported [RFC3024]
80 home network unreachable (ICMP error received) [RFC3344]
81 home agent host unreachable (ICMP error received) [RFC3344]
82 home agent port unreachable (ICMP error received) [RFC3344]
83-87 Unassigned
88 home agent unreachable (other ICMP error received) [RFC3344]
89 vendor-specific reason [Frank_Quick]
90 Non-zero HA address required in Registration Request [RFC4433]
91-95 Unassigned
96 nonzero_homeaddr_reqd [RFC2794]
97 missing_nai [RFC2794]
98 missing_home_agent [RFC2794]
99 missing_homeaddr [RFC2794]
100 ERROR-FA-1 [RFC3115]
101 ERROR-FA-2 [RFC3115]
102-103 Unassigned
104 unknown_challenge [RFC4721]
105 missing_challenge [RFC4721]
106 stale_challenge [RFC4721]
107 MISSING_MN_FA [RFC3957]
108 Error code from Foreign Agent => fa_bad_aaa_auth [RFC4721]
109 Error code from Foreign Agent => ha_wrong_challenge [RFC4721]
110 Error code from Foreign Agent => REPLAY_PROT_UNAVAIL [RFC4857]
111 Error code from Foreign Agent => ZERO_COA_NOT_SUPP [RFC4857]
112 UNKNOWN_GFA [RFC4857]
113 GFA_UNREACHABLE [RFC4857]
114 GFA_HOST_UNREACHABLE [RFC4857]
115 GFA_PORT_UNREACHABLE [RFC4857]
116 Invalid Home Agent Address [RFC5944]
117-126 Unassigned
127 FA Error Code for Experimental use [RFC4064]

Registration denied by the home agent

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5944]
Available Formats

CSV
Value Name Reference
128 reason unspecified [RFC3344]
129 administratively prohibited [RFC3344]
130 insufficient resources [RFC3344]
131 mobile node failed authentication [RFC3344]
132 foreign agent failed authentication [RFC3344]
133 registration Identification mismatch [RFC3344]
134 poorly formed Request [RFC3344]
135 too many simultaneous mobility bindings [RFC3344]
136 unknown home agent address [RFC3344]
137 request reverse tunnel unavailable [RFC3024]
138 reverse runnel is mandatory and 'T' bit not set [RFC3024]
139 requested encapsulation unavailable [RFC3024]
140 ERROR-HA-1 [RFC3115]
141 ERROR-HA-2 [RFC3115]
142 ERROR_HA_UDP-ENCAP_UNAVAIL [RFC3519]
143 Reregister with redirected HA [RFC4433]
144 Error code from Home Agent => ha_bad_aaa_auth [RFC4721]
145 Error code from Home Agent => ZERO_CAREOF_ADDRESS [RFC4857]
146 Error code from Home Agent => DYN_GFA_NOT_SUPP [RFC4857]
147 Mobile Network Prefix operation error (HA_MOBNET_ERROR) [RFC5177]
148 Mobile Router operation is not permitted (HA_MOBNET_DISALLOWED) [RFC5177]
149 PMIP_UNSUPPORTED [RFC5563]
150 PMIP_DISALLOWED [RFC5563]
151 SERVICE_AUTHORIZATION_FAILED [RFC5446]
152 MULTIPATH_NOT_ALLOWED [RFC7629]
153 INVALID_FB_IDENTIFIER [RFC7629]
154-191 Unassigned
192 HA Error Code for Experimental use [RFC4064]

Registration denied by the gateway foreign agent

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5944]
Available Formats

CSV
Value Name Reference
193 NO_HOME_REG [RFC4857]
194 Reserved
195-200 Unassigned

Error Codes from the Correspondent Node

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC6521]
Available Formats

CSV
Value Name Reference
201 Expired Home nonce Index [RFC6521]
202 Expired Care-of nonce Index [RFC6521]
203 Expired nonces [RFC6521]
204-210 Unassigned

Security Parameter Index (SPI) Values for the Mobile IP Reserved SPIs

Registration Procedure(s)
Must be specified and approved by the MIP4 working group
Reference
[RFC4721]
Available Formats

CSV
Value Name Reference
0 Reserved [RFC4721]
1 Reserved [RFC4721]
2 CHAP_SPI [RFC4721]
3-255 Unassigned

Replay Method Identifier

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC3957]
Available Formats

CSV
Replay Method Name Reference
0-1 Reserved [RFC3957]
2 Timestamps [RFC3957]
3 Nonces [RFC3957]
4-65535 Unassigned

Generalized Link Layer Address Registration Extension Subtypes and Generalized Link Layer Address Advertisement Extension Subtypes

Registration Procedure(s)
IETF Review
Reference
[RFC4881]
Available Formats

CSV
Subtype Value Name Reference
0 Reserved [RFC4881]
1 3GPP2 International Mobile Station Identity and Connection ID [RFC4881]
2 3GPP International Mobile Subscriber Identity [RFC4881]
3 Ethernet 48-bit MAC address [RFC4881]
4 64-bit Global ID, EUI-64 [RFC4881]
5 Solicited IPv4 Address [RFC4881]
6 Access Point Identifier [RFC4881]
7 FA IPv4 Address [RFC4881]
8-255 Unassigned

Code Values for Mobile IP Handoff Reply Messages (Value 17)

Registration Procedure(s)
IETF Review
Reference
[RFC4881]
Available Formats

CSV
Value Description Reference
0 Successful Handoff [RFC4881]
1 Generic Handoff Failure [RFC4881]
2-255 Unassigned

Message String Extension (Value 145)

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC4917]
Available Formats

CSV
Subtype Value Name Reference
1 Home Agent [RFC4917]
2 Foreign Agent [RFC4917]

Mobile Network Acknowledgement Extension

Registration Procedure(s)
Standards Action or IESG Approval
Reference
[RFC5177]
Available Formats

CSV
Value Name Reference
0 Success [RFC5177]
1 Invalid prefix length (MOBNET_INVALID_PREFIX_LEN) [RFC5177]
2 Mobile Router is not authorized for prefix (MOBNET_UNAUTHORIZED) [RFC5177]
3 Forwarding setup failed (MOBNET_FWDING_SETUP_FAILED) [RFC5177]
4 Home Agent cannot assign a mobile network prefix (MOBNET_UNASSIGNED) [RFC6626]
5-255 Unassigned

PMIPv4 Non-skippable Extension (Value 47)

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5563]
Available Formats

CSV
Value Name Reference
0 Unassigned [RFC5563]
1 PMIPv4 Per-Node Authentication Method [RFC5563]
2-255 Unassigned [RFC5563]

PMIPv4 Skippable Extension (Value 147)

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5563]
Available Formats

CSV
Value Name Reference
0 Unassigned [RFC5563]
1 PMIPv4 Interface ID [RFC5563]
2 PMIPv4 Device ID [RFC5563]
3 PMIPv4 Subscriber ID [RFC5563]
4 Access Technology Type [RFC5563]
5-255 Unassigned [RFC5563]

Dual Stack (DSMIPv4) Extension subtypes (Value 152)

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5454]
Available Formats

CSV
Value Name Reference
1 IPv6 Prefix Request [RFC5454]
2 IPv6 Prefix Reply [RFC5454]
3 IPv6 Tunneling Mode [RFC5454]

PMIPv4 Per-Node Authentication Method Types

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5563]
Available Formats

CSV
Value Name Reference
0 Reserved [RFC5563]
1 FA-HA Authentication [RFC5563]
2 IPSec Authentication [RFC5563]
3-255 Unassigned

PMIPv4 Device ID Types

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5563]
Available Formats

CSV
Value Name Reference
0 Reserved [RFC5563]
1 Ethernet MAC address [RFC5563]
2 Mobile Equipment Identifier (MEID) [RFC5563]
3 International Mobile Equipment Identity (IMEI) [RFC5563]
4 Electronic Serial Number (ESN) [RFC5563]
5-255 Unassigned

PMIPv4 Subscriber ID Types

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5563]
Available Formats

CSV
Value Name Reference
0 Reserved [RFC5563]
1 International Mobile Subscriber Identity (IMSI) [RFC5563]
2-255 Unassigned

Access Technology Types

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5563]
Available Formats

CSV
Value Name Reference
0 Reserved [RFC5563]
1 802.3 [RFC5563]
2 802.11a/b/g [RFC5563]
3 802.16e [RFC5563]
4 802.16m [RFC5563]
5 3GPP EUTRAN/LTE [RFC5563]
6 3GPP UTRAN/GERAN [RFC5563]
7 3GPP2 1xRTT/HRPD [RFC5563]
8 3GPP2 UMB [RFC5563]
9-255 Unassigned

IPv6 Prefix Reply Extension Codes

Registration Procedure(s)
Expert Review
Expert(s)
Unassigned
Reference
[RFC5454]
Available Formats

CSV
Code Description Reference
0 registration accepted, IPv6 to be tunneled to HoA [RFC5454]
1 registration accepted, IPv6 to be tunneled to CoA [RFC5454]
2-7 Unassigned (available for accept codes)
8 registration rejected, reason unspecified [RFC5454]
9 registration rejected, administratively prohibited [RFC5454]
10-255 Unassigned (available for reject codes)

Code Values for General Notification Messages

Expert(s)
Unassigned
Reference
[RFC6098]
Available Formats

CSV
Range Registration Procedures Note
0 Expert Review Success Code
1-63 Expert Review
64-69 Expert Review Error Codes from the FA
70-127 Expert Review
128-133 Expert Review Error Codes from the HA
134-191 Expert Review
192-197 Expert Review Error Codes from the MN
198-255 Expert Review
Value Name Reference
0 notification accepted [RFC6098]
1-63 Unassigned
64 reason unspecified [RFC6098]
65 administratively prohibited [RFC6098]
66 insufficient resources [RFC6098]
67 mobile node failed authentication [RFC6098]
68 home agent failed authentication [RFC6098]
69 notification Identification mismatch [RFC6098]
70-126 Unassigned
127 Reserved for Experimental Use [RFC6098]
128 reason unspecified [RFC6098]
129 administratively prohibited [RFC6098]
130 insufficient resources [RFC6098]
131 mobile node failed authentication [RFC6098]
132 foreign agent failed authentication [RFC6098]
133 notification Identification mismatch [RFC6098]
134-190 Unassigned
191 Reserved for Experimental Use [RFC6098]
192 reason unspecified [RFC6098]
193 administratively prohibited [RFC6098]
194 insufficient resources [RFC6098]
195 foreign agent failed authentication [RFC6098]
196 home agent failed authentication [RFC6098]
197 notification Identification mismatch [RFC6098]
198-254 Unassigned
255 Reserved for Experimental Use [RFC6098]

Route Optimization Extension (Value 49)

Registration Procedure(s)
RFC Required
Reference
[RFC6521]
Available Formats

CSV
Subtype Value Name Reference
0 Reserved [RFC6521]
1 Route Optimization Reply [RFC6521]
2 Mobile-Correspondent Authentication [RFC6521]
3 Care-of Address [RFC6521]
4-255 Unassigned

Route Optimization Data Extension (Value 50)

Registration Procedure(s)
RFC Required
Reference
[RFC6521]
Available Formats

CSV
Subtype Value Name Reference
0 Reserved [RFC6521]
1 Route Optimization Prefix Advertisement [RFC6521]
2-255 Unassigned

Mobile Router Route Optimization Capability Extension (Value 153)

Registration Procedure(s)
RFC Required
Reference
[RFC6521]
Available Formats

CSV
Subtype Value Name Reference
0 Reserved [RFC6521]
1 Mobile Router Route Optimization Capability [RFC6521]
2-255 Unassigned

Contact Information

ID Name Contact URI Last Updated
[Frank_Quick] Frank Quick mailto:fquick&qualcomm.com 2002-07