Mobile IP Message Types
- RFC 5944: IP Mobility Support for IPv4, Revised
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.
| 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
- RFC 5944: IP Mobility Support for IPv4, Revised
- RFC 6098: Generic Notification Message for Mobile IPv4
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).
| 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
- RFC 5944: IP Mobility Support for IPv4, Revised
The second set consists of those extensions which may appear only
in ICMP Router Discovery messages RFC 1256.
| 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
To conserve the type number space, extension types may have sub-types.
Currently the following extensions have subtypes defined:
Generalized Authentication Extension (Value 36)
- RFC 4721: Mobile IPv4 Challenge/Response Extensions (Revised)
| 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)
- RFC 3957: Authentication, Authorization, and Accounting (AAA) Registration Keys for Mobile IPv4
| 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)
- RFC 3519: Mobile IP Traversal of Network Address Translation (NAT) Devices
| Subtype Value |
Name |
Reference |
| 0 |
Regular UDP Tunnel Reply Extension |
RFC 3519 |
FA Error Extension subtypes (value 45)
- RFC 4636: Foreign Agent Error Extension for Mobile IPv4
| Subtype Value |
Name |
Reference |
| 0 |
FA Error Indication to MN |
RFC 4636 |
GRE Key Extension subtypes (value 48)
- RFC 6245: Generic Routing Encapsulation (GRE) Key Extension for Mobile IPv4
| Subtype Value |
Name |
Reference |
| 0 |
GRE Key Extension |
RFC 6245 |
| 1-255 |
Unassigned |
|
NAI Carrying Extension Sub-types (Value 136)
- RFC 3846: Mobile IPv4 Extension for Carrying Network Access Identifiers
Dynamic HA Extension subtypes (Value 139)
- RFC 4433: Mobile IPv4 Dynamic Home Agent (HA) Assignment
| Subtype Value |
Name |
Reference |
| 1 |
Requested HA Extension |
RFC 4433 |
| 2 |
Redirected HA Extension |
RFC 4433 |
UDP Tunnel Request Extension (Value 144)
- RFC 3519: Mobile IP Traversal of Network Address Translation (NAT) Devices
| Subtype Value |
Name |
Reference |
| 0 |
Regular UDP Tunnel Request Extension |
RFC 3519 |
Mobile Network Extension subtypes (Value 148)
- Standards Action or IESG Approval
- RFC 5177: Network Mobility (NEMO) Extensions for Mobile IPv4
| 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)
- RFC 5265: Mobile IPv4 Traversal across IPsec-Based VPN Gateways
| Value |
Name |
Reference |
| 0 |
Trusted Networks Configured (TNC) |
RFC 5265 |
| 1-255 |
Unassigned |
|
Multipath Extension subtypes (Value 154)
- RFC 7629: Flow-Binding Support for Mobile IP
Code Values for Mobile IP Registration Reply Messages
- RFC 5944: IP Mobility Support for IPv4, Revised
- RFC 6521: Home Agent-Assisted Route Optimization between Mobile IPv4 Networks
| 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
- RFC 5944: IP Mobility Support for IPv4, Revised
| 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
- RFC 5944: IP Mobility Support for IPv4, Revised
| 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
- RFC 5944: IP Mobility Support for IPv4, Revised
| 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
- RFC 5944: IP Mobility Support for IPv4, Revised
| Value |
Name |
Reference |
| 193 |
NO_HOME_REG |
RFC 4857 |
| 194 |
Reserved |
|
| 195-200 |
Unassigned |
|
Error Codes from the Correspondent Node
- RFC 6521: Home Agent-Assisted Route Optimization between Mobile IPv4 Networks
| 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
- Must be specified and approved by the MIP4 working group
- RFC 4721: Mobile IPv4 Challenge/Response Extensions (Revised)
Replay Method Identifier
- RFC 3957: Authentication, Authorization, and Accounting (AAA) Registration Keys for Mobile IPv4
Generalized Link Layer Address Registration Extension Subtypes and Generalized Link Layer Address Advertisement Extension Subtypes
- RFC 4881: Low-Latency Handoffs in Mobile IPv4
| 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)
- RFC 4881: Low-Latency Handoffs in Mobile IPv4
| Value |
Description |
Reference |
| 0 |
Successful Handoff |
RFC 4881 |
| 1 |
Generic Handoff Failure |
RFC 4881 |
| 2-255 |
Unassigned |
|
Message String Extension (Value 145)
- RFC 4917: Mobile IPv4 Message String Extension
Mobile Network Acknowledgement Extension
- Standards Action or IESG Approval
- RFC 5177: Network Mobility (NEMO) Extensions for Mobile IPv4
| 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)
- RFC 5563: WiMAX Forum / 3GPP2 Proxy Mobile IPv4
PMIPv4 Skippable Extension (Value 147)
- RFC 5563: WiMAX Forum / 3GPP2 Proxy Mobile IPv4
Dual Stack (DSMIPv4) Extension subtypes (Value 152)
PMIPv4 Per-Node Authentication Method Types
- RFC 5563: WiMAX Forum / 3GPP2 Proxy Mobile IPv4
| 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
- RFC 5563: WiMAX Forum / 3GPP2 Proxy Mobile IPv4
| 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
- RFC 5563: WiMAX Forum / 3GPP2 Proxy Mobile IPv4
| Value |
Name |
Reference |
| 0 |
Reserved |
RFC 5563 |
| 1 |
International Mobile Subscriber Identity (IMSI) |
RFC 5563 |
| 2-255 |
Unassigned |
|
Access Technology Types
- RFC 5563: WiMAX Forum / 3GPP2 Proxy Mobile IPv4
IPv6 Prefix Reply Extension Codes
| 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
- RFC 6098: Generic Notification Message for Mobile IPv4
| 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 |
RFC 6098 |
| 1-63 |
Unassigned |
|
| 64 |
reason unspecified |
RFC 6098 |
| 65 |
administratively prohibited |
RFC 6098 |
| 66 |
insufficient resources |
RFC 6098 |
| 67 |
mobile node failed authentication |
RFC 6098 |
| 68 |
home agent failed authentication |
RFC 6098 |
| 69 |
notification Identification mismatch |
RFC 6098 |
| 70-126 |
Unassigned |
|
| 127 |
Reserved for Experimental Use |
RFC 6098 |
| 128 |
reason unspecified |
RFC 6098 |
| 129 |
administratively prohibited |
RFC 6098 |
| 130 |
insufficient resources |
RFC 6098 |
| 131 |
mobile node failed authentication |
RFC 6098 |
| 132 |
foreign agent failed authentication |
RFC 6098 |
| 133 |
notification Identification mismatch |
RFC 6098 |
| 134-190 |
Unassigned |
|
| 191 |
Reserved for Experimental Use |
RFC 6098 |
| 192 |
reason unspecified |
RFC 6098 |
| 193 |
administratively prohibited |
RFC 6098 |
| 194 |
insufficient resources |
RFC 6098 |
| 195 |
foreign agent failed authentication |
RFC 6098 |
| 196 |
home agent failed authentication |
RFC 6098 |
| 197 |
notification Identification mismatch |
RFC 6098 |
| 198-254 |
Unassigned |
|
| 255 |
Reserved for Experimental Use |
RFC 6098 |
Route Optimization Extension (Value 49)
- RFC 6521: Home Agent-Assisted Route Optimization between Mobile IPv4 Networks
| Subtype Value |
Name |
Reference |
| 0 |
Reserved |
RFC 6521 |
| 1 |
Route Optimization Reply |
RFC 6521 |
| 2 |
Mobile-Correspondent Authentication |
RFC 6521 |
| 3 |
Care-of Address |
RFC 6521 |
| 4-255 |
Unassigned |
|
Route Optimization Data Extension (Value 50)
- RFC 6521: Home Agent-Assisted Route Optimization between Mobile IPv4 Networks
| Subtype Value |
Name |
Reference |
| 0 |
Reserved |
RFC 6521 |
| 1 |
Route Optimization Prefix Advertisement |
RFC 6521 |
| 2-255 |
Unassigned |
|
Mobile Router Route Optimization Capability Extension (Value 153)
- RFC 6521: Home Agent-Assisted Route Optimization between Mobile IPv4 Networks
| Subtype Value |
Name |
Reference |
| 0 |
Reserved |
RFC 6521 |
| 1 |
Mobile Router Route Optimization Capability |
RFC 6521 |
| 2-255 |
Unassigned |
|
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