Mobile IPv4 Numbers

Note

Mobile IP defines a set of new control messages, sent with UDP or TCP
[RFC 5944] using well-known port number 434.  Currently, the following
are defined.

Available Formats

Value	Message Types	Reference
1	Registration Request	[RFC 5944]
2	Unassigned
3	Registration Reply	[RFC 5944]
4	Tunnel Data	[RFC 3519]
5-6	Unassigned
7	Registration Revocation	[RFC 3543]
8-14	Unassigned
15	Revocation Acknowledgment	[RFC 3543]
16	Handoff Request	[RFC 4881]
17	Handoff Reply	[RFC 4881]
18	Regional Registration Request	[RFC 4857]
19	Regional Registration Reply	[RFC 4857]
20	Fast Binding Update (FBU)	[RFC 4988]
21	Fast Binding Acknowledgment (FBAck)	[RFC 4988]
22	Generic Notification	[RFC 6098]
23	Generic Notification Acknowledgement	[RFC 6098]
24	Home Test Init message	[RFC 6521]
25	Care-of Test Init message	[RFC 6521]
26	Home Test message	[RFC 6521]
27	Care-of Test message	[RFC 6521]
28-254	Unassigned
255	Message for Experimental use	[RFC 4064]

Extensions to Mobile IP Registration Messages

Registration Procedure(s)

Specification Required

Expert(s)

Unassigned

Reference

[RFC 5944][RFC 6098]

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

Value	Name	Permitted for Notification Messages (Y/N)	Reference
0	One-byte Padding	N	[RFC 5944]
32	Mobile-Home Authentication	Y	[RFC 5944]
33	Mobile-Foreign Authentication	Y	[RFC 5944]
34	Foreign-Home Authentication	Y	[RFC 5944]
36	Generalized Mobile IP Authentication	N	[RFC 4721]
38	Critical Vendor/Organization Specific Extension(CVSE)	N	[RFC 3115]
40	MN-FA-KeyGen Request	N	[RFC 3957]
41	MN-FA-KeyGen Reply	N	[RFC 3957]
42	MN-HA-KeyGen Request	N	[RFC 3957]
43	MN-HA-KeyGen Reply	N	[RFC 3957]
44	UDP Tunnel Reply Extension	N	[RFC 3519]
45	FA Error Extension	N	[RFC 4636]
46	GFA IP Address Extension	N	[RFC 4857]
47	PMIPv4 Non-skippable Extension	N	[RFC 5563]
48	GRE Key Extension	N	[RFC 6245]
49	Route Optimization Extensions	N	[RFC 6521]
50	Route Optimization Data	N	[RFC 6521]
51-126	Unassigned
127	Non-skippable Extension for Experimental use	N	[RFC 4064]
128	Deprecated (2001-08-31)
129	SKIP Firewall Traversal Extension	N	[RFC 2356]
130	Encapsulating Delivery Style Extension	N	[RFC 3024]
131	Mobile Node NAI	N	[RFC 2794]
132	MN-FA Challenge Extension	N	[RFC 4721]
134	Normal Vendor/Organization Specific Extension (NVSE)	N	[RFC 3115]
136	NAI Carrying Extension	N	[RFC 3846]
137	Revocation Support	N	[RFC 3543]
138	Generalized Link Layer Address Registration Extension	N	[RFC 4881]
139	Dynamic HA Extension	N	[RFC 4433]
140	Hierarchical Foreign Agent Extension	N	[RFC 4857]
141	Replay Protection Style	N	[RFC 4857]
142	Regional Registration Lifetime Extension	N	[RFC 4857]
144	UDP Tunnel Request Extension	N	[RFC 3519]
145	Message String Extension	Y	[RFC 4917]
147	PMIPv4 Skippable Extension	N	[RFC 5563]
148	Mobile Network Extension	N	[RFC 5177]
149	Trusted Networks Configured (TNC) Extension	N	[RFC 5265]
150	Reserved
151	Service Selection Extension	N	[RFC 5446]
152	Dual Stack (DSMIPv4) Extension	N	[RFC 5454]
153	Mobile Router Route Optimization Indication	N	[RFC 6521]
154	Multipath-Extension	N	[RFC 7629]
155-254	Unassigned
255	Skippable Extension for Experimental use	N	[RFC 4064]

Mobile IP Extensions for ICMP Router Discovery messages

Registration Procedure(s)

Specification Required

Expert(s)

Unassigned

Reference

Note

The second set consists of those extensions which may appear only
in ICMP Router Discovery messages RFC1256.

Available Formats

Value	Name	Reference
0	One-byte Padding (encoded with no Length nor Data field)	[RFC 5944]
1-15	Unassigned
16	Mobility Agent Advertisement	[RFC 5944]
17-18	Unassigned
19	Prefix-Lengths	[RFC 5944]
20	Link-Layer Address Option Format (LLA)	[RFC 4988]
21	New IPv4 Address	[RFC 4988]
22	New Router Prefix Information	[RFC 4988]
23	Unassigned
24	Challenge Extension	[RFC 4721]
25-126	Unassigned
127	Non-skippable Adv. Extension for Experimental use	[RFC 4064]
128-135	Unassigned
136	NAI Carrying Extension	[RFC 3846]
137	CARD MN-AR signature option	[RFC 4065]
138	CARD Request option	[RFC 4065]
139	CARD Reply option	[RFC 4065]
140	Generalized Link Layer Address Advertisement Extension	[RFC 4881]
141-254	Unassigned
255	Skippable Adv. Extension for Experimental use	[RFC 4064]

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

[RFC 4721]

Available Formats

Subtype Value	Name	Reference
1	MN-AAA Authentication subtype	[RFC 4721]
2	FA-FA authentication	[RFC 4857]
3	MN-GFA authentication	[RFC 4857]
4	MN-PAR Auth Extension	[RFC 4988]

KeyGen Request/Reply subtypes (Value 40-43)

Registration Procedure(s)

Standards Action

Reference

[RFC 3957]

Available Formats

Subtype Value	Name	Reference
1	KeyGen Request/Reply from AAA	[RFC 3957]
7	Not to be allocated - used by early implementations

UDP Tunnel Reply Extension (Value 44)

Registration Procedure(s)

Specification Required

Expert(s)

Unassigned

Reference

[RFC 3519]

Available Formats

Subtype Value	Name	Reference
0	Regular UDP Tunnel Reply Extension	[RFC 3519]

FA Error Extension subtypes (value 45)

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

[RFC 4636]

Available Formats

Subtype Value	Name	Reference
0	FA Error Indication to MN	[RFC 4636]

GRE Key Extension subtypes (value 48)

Registration Procedure(s)

Specification Required

Expert(s)

Unassigned

Reference

[RFC 6245]

Available Formats

Subtype Value	Name	Reference
0	GRE Key Extension	[RFC 6245]
1-255	Unassigned

NAI Carrying Extension Sub-types (Value 136)

Registration Procedure(s)

Specification Required

Expert(s)

Unassigned

Reference

[RFC 3846]

Available Formats

Subtype Value	Name	Reference
1	HA Identity	[RFC 3846]
2	AAAH identity	[RFC 3846]
3	Foreign Agent NAI (FA-NAI)	[RFC 4857]

Dynamic HA Extension subtypes (Value 139)

Registration Procedure(s)

IETF Review

Reference

[RFC 4433]

Available Formats

Subtype Value	Name	Reference
1	Requested HA Extension	[RFC 4433]
2	Redirected HA Extension	[RFC 4433]

UDP Tunnel Request Extension (Value 144)

Registration Procedure(s)

Specification Required

Expert(s)

Unassigned

Reference

[RFC 3519]

Available Formats

Subtype Value	Name	Reference
0	Regular UDP Tunnel Request Extension	[RFC 3519]

Mobile Network Extension subtypes (Value 148)

Registration Procedure(s)

Standards Action or IESG Approval

Reference

[RFC 5177]

Available Formats

Value	Name	Reference
0	Mobile Network Request Extension	[RFC 5177]
1	Explicit Mode Acknowledgement Extension	[RFC 5177]
2	Implicit Mode Acknowledgement Extension	[RFC 5177]
3-255	Unassigned

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

Registration Procedure(s)

Specification Required

Expert(s)

Unassigned

Reference

[RFC 5265]

Available Formats

Value	Name	Reference
0	Trusted Networks Configured (TNC)	[RFC 5265]
1-255	Unassigned

Multipath Extension subtypes (Value 154)

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

[RFC 7629]

Available Formats

Subtype Value	Name	Reference
0	Reserved	[RFC 7629]
1	Multipath Extension	[RFC 7629]
2	Flow-Binding Extension	[RFC 7629]
3-254	Unassigned
255	Reserved	[RFC 7629]

Code Values for Mobile IP Registration Reply Messages

Expert(s)

Unassigned

Reference

[RFC 5944][RFC 6521]

Available Formats

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

Available Formats

Value	Name	Reference
0	registration accepted	[RFC 3344]
1	registration accepted, but simultaneous mobility bindings unsupported	[RFC 3344]
2	Concurrent registration (pre-accept)	[RFC 6521]
3-8	Unassigned

Registration denied by the foreign agent

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

Available Formats

Value	Name	Reference
64	reason unspecified	[RFC 3344]
65	administratively prohibited	[RFC 3344]
66	insufficient resources	[RFC 3344]
67	mobile node failed authentication	[RFC 3344][RFC 4721]
68	home agent failed authentication	[RFC 3344]
69	requested Lifetime too long	[RFC 3344]
70	poorly formed Request	[RFC 3344]
71	poorly formed Reply	[RFC 3344]
72	requested encapsulation unavailable	[RFC 3344]
73	reserved and unavailable	[RFC 3344]
74	request reverse tunnel unavailable	[RFC 3024]
75	reverse runnel is mandatory and 'T' bit not set	[RFC 3024]
76	mobile node too distant	[RFC 3024]
77	invalid care-of address	[RFC 3344]
78	registration timeout	[RFC 3344]
79	delivery style not supported	[RFC 3024]
80	home network unreachable (ICMP error received)	[RFC 3344]
81	home agent host unreachable (ICMP error received)	[RFC 3344]
82	home agent port unreachable (ICMP error received)	[RFC 3344]
83-87	Unassigned
88	home agent unreachable (other ICMP error received)	[RFC 3344]
89	vendor-specific reason	[Frank_Quick]
90	Non-zero HA address required in Registration Request	[RFC 4433]
91-95	Unassigned
96	nonzero_homeaddr_reqd	[RFC 2794]
97	missing_nai	[RFC 2794]
98	missing_home_agent	[RFC 2794]
99	missing_homeaddr	[RFC 2794]
100	ERROR-FA-1	[RFC 3115]
101	ERROR-FA-2	[RFC 3115]
102-103	Unassigned
104	unknown_challenge	[RFC 4721]
105	missing_challenge	[RFC 4721]
106	stale_challenge	[RFC 4721]
107	MISSING_MN_FA	[RFC 3957]
108	Error code from Foreign Agent => fa_bad_aaa_auth	[RFC 4721]
109	Error code from Foreign Agent => ha_wrong_challenge	[RFC 4721]
110	Error code from Foreign Agent => REPLAY_PROT_UNAVAIL	[RFC 4857]
111	Error code from Foreign Agent => ZERO_COA_NOT_SUPP	[RFC 4857]
112	UNKNOWN_GFA	[RFC 4857]
113	GFA_UNREACHABLE	[RFC 4857]
114	GFA_HOST_UNREACHABLE	[RFC 4857]
115	GFA_PORT_UNREACHABLE	[RFC 4857]
116	Invalid Home Agent Address	[RFC 5944]
117-126	Unassigned
127	FA Error Code for Experimental use	[RFC 4064]

Registration denied by the home agent

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

Available Formats

Value	Name	Reference
128	reason unspecified	[RFC 3344]
129	administratively prohibited	[RFC 3344]
130	insufficient resources	[RFC 3344]
131	mobile node failed authentication	[RFC 3344]
132	foreign agent failed authentication	[RFC 3344]
133	registration Identification mismatch	[RFC 3344]
134	poorly formed Request	[RFC 3344]
135	too many simultaneous mobility bindings	[RFC 3344]
136	unknown home agent address	[RFC 3344]
137	request reverse tunnel unavailable	[RFC 3024]
138	reverse runnel is mandatory and 'T' bit not set	[RFC 3024]
139	requested encapsulation unavailable	[RFC 3024]
140	ERROR-HA-1	[RFC 3115]
141	ERROR-HA-2	[RFC 3115]
142	ERROR_HA_UDP-ENCAP_UNAVAIL	[RFC 3519]
143	Reregister with redirected HA	[RFC 4433]
144	Error code from Home Agent => ha_bad_aaa_auth	[RFC 4721]
145	Error code from Home Agent => ZERO_CAREOF_ADDRESS	[RFC 4857]
146	Error code from Home Agent => DYN_GFA_NOT_SUPP	[RFC 4857]
147	Mobile Network Prefix operation error (HA_MOBNET_ERROR)	[RFC 5177]
148	Mobile Router operation is not permitted (HA_MOBNET_DISALLOWED)	[RFC 5177]
149	PMIP_UNSUPPORTED	[RFC 5563]
150	PMIP_DISALLOWED	[RFC 5563]
151	SERVICE_AUTHORIZATION_FAILED	[RFC 5446]
152	MULTIPATH_NOT_ALLOWED	[RFC 7629]
153	INVALID_FB_IDENTIFIER	[RFC 7629]
154-191	Unassigned
192	HA Error Code for Experimental use	[RFC 4064]

Registration denied by the gateway foreign agent

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

Available Formats

Value	Name	Reference
193	NO_HOME_REG	[RFC 4857]
194	Reserved
195-200	Unassigned

Error Codes from the Correspondent Node

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

[RFC 6521]

Available Formats

Value	Name	Reference
201	Expired Home nonce Index	[RFC 6521]
202	Expired Care-of nonce Index	[RFC 6521]
203	Expired nonces	[RFC 6521]
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

[RFC 4721]

Available Formats

Value	Name	Reference
0	Reserved	[RFC 4721]
1	Reserved	[RFC 4721]
2	CHAP_SPI	[RFC 4721]
3-255	Unassigned

Replay Method Identifier

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

[RFC 3957]

Available Formats

Replay Method	Name	Reference
0-1	Reserved	[RFC 3957]
2	Timestamps	[RFC 3957]
3	Nonces	[RFC 3957]
4-65535	Unassigned

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

Registration Procedure(s)

IETF Review

Reference

[RFC 4881]

Available Formats

Subtype Value	Name	Reference
0	Reserved	[RFC 4881]
1	3GPP2 International Mobile Station Identity and Connection ID	[RFC 4881]
2	3GPP International Mobile Subscriber Identity	[RFC 4881]
3	Ethernet 48-bit MAC address	[RFC 4881]
4	64-bit Global ID, EUI-64	[RFC 4881]
5	Solicited IPv4 Address	[RFC 4881]
6	Access Point Identifier	[RFC 4881]
7	FA IPv4 Address	[RFC 4881]
8-255	Unassigned

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

Registration Procedure(s)

IETF Review

Reference

[RFC 4881]

Available Formats

Value	Description	Reference
0	Successful Handoff	[RFC 4881]
1	Generic Handoff Failure	[RFC 4881]
2-255	Unassigned

Message String Extension (Value 145)

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

[RFC 4917]

Available Formats

Subtype Value	Name	Reference
1	Home Agent	[RFC 4917]
2	Foreign Agent	[RFC 4917]

Mobile Network Acknowledgement Extension

Registration Procedure(s)

Standards Action or IESG Approval

Reference

[RFC 5177]

Available Formats

Value	Name	Reference
0	Success	[RFC 5177]
1	Invalid prefix length (MOBNET_INVALID_PREFIX_LEN)	[RFC 5177]
2	Mobile Router is not authorized for prefix (MOBNET_UNAUTHORIZED)	[RFC 5177]
3	Forwarding setup failed (MOBNET_FWDING_SETUP_FAILED)	[RFC 5177]
4	Home Agent cannot assign a mobile network prefix (MOBNET_UNASSIGNED)	[RFC 6626]
5-255	Unassigned

PMIPv4 Non-skippable Extension (Value 47)

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

Available Formats

Value	Name	Reference
0	Unassigned	[RFC 5563]
1	PMIPv4 Per-Node Authentication Method	[RFC 5563]
2-255	Unassigned	[RFC 5563]

PMIPv4 Skippable Extension (Value 147)

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

Available Formats

Value	Name	Reference
0	Unassigned	[RFC 5563]
1	PMIPv4 Interface ID	[RFC 5563]
2	PMIPv4 Device ID	[RFC 5563]
3	PMIPv4 Subscriber ID	[RFC 5563]
4	Access Technology Type	[RFC 5563]
5-255	Unassigned	[RFC 5563]

Dual Stack (DSMIPv4) Extension subtypes (Value 152)

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

[RFC 5454]

Available Formats

Value	Name	Reference
1	IPv6 Prefix Request	[RFC 5454]
2	IPv6 Prefix Reply	[RFC 5454]
3	IPv6 Tunneling Mode	[RFC 5454]

PMIPv4 Per-Node Authentication Method Types

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

Available Formats

Value	Name	Reference
0	Reserved	[RFC 5563]
1	FA-HA Authentication	[RFC 5563]
2	IPSec Authentication	[RFC 5563]
3-255	Unassigned

PMIPv4 Device ID Types

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

Available Formats

Value	Name	Reference
0	Reserved	[RFC 5563]
1	Ethernet MAC address	[RFC 5563]
2	Mobile Equipment Identifier (MEID)	[RFC 5563]
3	International Mobile Equipment Identity (IMEI)	[RFC 5563]
4	Electronic Serial Number (ESN)	[RFC 5563]
5-255	Unassigned

PMIPv4 Subscriber ID Types

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

Available Formats

Value	Name	Reference
0	Reserved	[RFC 5563]
1	International Mobile Subscriber Identity (IMSI)	[RFC 5563]
2-255	Unassigned

Access Technology Types

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

Available Formats

Value	Name	Reference
0	Reserved	[RFC 5563]
1	802.3	[RFC 5563]
2	802.11a/b/g	[RFC 5563]
3	802.16e	[RFC 5563]
4	802.16m	[RFC 5563]
5	3GPP EUTRAN/LTE	[RFC 5563]
6	3GPP UTRAN/GERAN	[RFC 5563]
7	3GPP2 1xRTT/HRPD	[RFC 5563]
8	3GPP2 UMB	[RFC 5563]
9-255	Unassigned

IPv6 Prefix Reply Extension Codes

Registration Procedure(s)

Expert Review

Expert(s)

Unassigned

Reference

[RFC 5454]

Available Formats

Code	Description	Reference
0	registration accepted, IPv6 to be tunneled to HoA	[RFC 5454]
1	registration accepted, IPv6 to be tunneled to CoA	[RFC 5454]
2-7	Unassigned (available for accept codes)
8	registration rejected, reason unspecified	[RFC 5454]
9	registration rejected, administratively prohibited	[RFC 5454]
10-255	Unassigned (available for reject codes)

Code Values for General Notification Messages

Expert(s)

Unassigned

Reference

[RFC 6098]

Available Formats