Internet Assigned Numbers Authority Mobile IPv4 Numbers Last Updated 2023-08-24 Available Formats [IMG] XML [IMG] HTML [IMG] Plain text Registries included below • Mobile IP Message Types • Extensions to Mobile IP Registration Messages • Mobile IP Extensions for ICMP Router Discovery messages • Extension Subtypes • Generalized Authentication Extension (Value 36) • KeyGen Request/Reply subtypes (Value 40-43) • UDP Tunnel Reply Extension (Value 44) • FA Error Extension subtypes (value 45) • GRE Key Extension subtypes (value 48) • NAI Carrying Extension Sub-types (Value 136) • Dynamic HA Extension subtypes (Value 139) • UDP Tunnel Request Extension (Value 144) • Mobile Network Extension subtypes (Value 148) • Trusted Networks Configured (TNC) Extension subtypes (Value 149) • Multipath Extension subtypes (Value 154) • Code Values for Mobile IP Registration Reply Messages • Registration successful Code Values • Registration denied by the foreign agent • Registration denied by the home agent • Registration denied by the gateway foreign agent • Error Codes from the Correspondent Node • Security Parameter Index (SPI) Values for the Mobile IP Reserved SPIs • Replay Method Identifier • Generalized Link Layer Address Registration Extension Subtypes and Generalized Link Layer Address Advertisement Extension Subtypes • Code Values for Mobile IP Handoff Reply Messages (Value 17) • Message String Extension (Value 145) • Mobile Network Acknowledgement Extension • PMIPv4 Non-skippable Extension (Value 47) • PMIPv4 Skippable Extension (Value 147) • Dual Stack (DSMIPv4) Extension subtypes (Value 152) • PMIPv4 Per-Node Authentication Method Types • PMIPv4 Device ID Types • PMIPv4 Subscriber ID Types • Access Technology Types • IPv6 Prefix Reply Extension Codes • Code Values for General Notification Messages • Route Optimization Extension (Value 49) • Route Optimization Data Extension (Value 50) • Mobile Router Route Optimization Capability Extension (Value 153) 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 [IMG] 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 Licensing Terms