A.5 UE-initiated Detach
24.3033GPPMobility management based on Dual-Stack Mobile IPv6Release 17Stage 3TS
A.5.1 Binding Update
The fields of a BU message for the DSMIPv6 UE-Initiated Detach are depicted in Table A.5.1-1.
The Mobility Options in a BU message for the DSMIPv6 UE-Initiated Detach are depicted in Table A.5.1-2.
Table A.5.1-1: Fields of a BU message for the DSMIPv6 UE-Initiated Detach procedure
|
Fields |
Fields Description |
Reference |
|
Sequence Number |
Set to a monotonically increasing value. |
IETF RFC 6275 [27] |
|
Lifetime |
Set to a value of "0" indicating that the Binding Cache entry for the UE is to be deleted. |
IETF RFC 6275 [27] |
|
Home Registration (H) |
Set to "1" to indicate receiving node should act as this node’s HA |
IETF RFC 6275 [27] |
|
Link-local Address Compatibility (L) |
The Link-Local Address Compatibility (L) bit is set when the home address reported by the mobile node has the same interface identifier as the mobile node’s link-local address. |
IETF RFC 6275 [27] |
|
Key Management Mobility Capability (K) |
Set to "1" to indicate IKEv2 SA ability to survive mobility |
IETF RFC 6275 [27] |
|
Acknowledge (A) |
Set to "1" to request an acknowledgement message. |
IETF RFC 6275 [27] |
|
Force UDP encapsulation request (F) Flag |
Set to "0 " to indicate no forced UDP encapsulation |
IETF RFC 5555 [2] |
Table A.5.1-2: Mobility Options in a BU message for the DSMIPv6 UE-Initiated Detach procedure
|
Mobility Option |
Cat. |
Mobility Option Description |
Reference |
|
IPv4 Home Address option |
O |
Set to the UE’s previously registered value. The "P" flag is set to zero. The Prefix Length is set to 32. |
IETF RFC 5555 [2] |
|
IPv 4 Care-of Address |
C |
Set to the IPv4 Care-of address when in an IPv4 Access Network. |
IETF RFC 5555 [2] |
|
Alternate Care-of Address |
C |
Used (in addition to the Source address of the IPv6 packet) to carry the IPv6 care-of address when in an IPv6 access network. |
IETF RFC 6275 [27] |
A.5.2 Binding Acknowledgement
The fields of a BA message for the DSMIPv6 Initial Binding Registration procedure are depicted in Table A.5.2-1.
The Mobility Options in a BA message for the DSMIPv6 Initial Binding Registration procedure are depicted in Table A.5.2-2.
Table A.5.2-1: Fields of a BA message for the DSMIPv6 UE-Initiated Detach procedure
|
Fields |
Fields Description |
Reference |
|
Status |
Set to indicate the result. |
IETF RFC 6275 [27] |
|
Key Management Mobility Capability (K) |
Set as per HA ability to support the feature of updating the IKE SA based on Binding Update processing |
IETF RFC 6275 [27], IETF RFC 5555 [2] |
|
Sequence Number |
Set to the value received in the corresponding Binding Update or the last accepted sequence number in the case of Status 135 ("Sequence Number out of window"). |
IETF RFC 6275 [27] |
|
Lifetime |
Set to "0". |
IETF RFC 6275 [27] |
Table A.5.2-2: Mobility Options in a BA message for the DSMIPv6 UE-Initiated Detach procedure
|
Mobility Option |
Cat. |
Mobility Option Description |
Reference |
|
IPv4Address Acknowledgment option |
C |
If present in the BU the IPv4 Home Address is set to the IPv4 Home Address that is now de-registered. The pref-len is set to "32" and the supporting Status field is set accordingly. |
IETF RFC 5555 [2] |