Patent ID: 8068840

Claim:
An apparatus, comprising: a processor; and a memory, at least one of the processor or the memory being adapted for: receiving a registration request identifying a node at a Home Agent from a first Local Mobility Anchor when the node moves into a region associated with the first Local Mobility Anchor, wherein the first Local Mobility Anchor is a regional controller via which registration is performed when the node moves within the region associated with the first Local Mobility Anchor such that the Home Agent does not receive registration requests identifying the node when the node moves within the region associated with the first Local Mobility Anchor, the registration request including a care-of address field identifying an IP address associated with the first Local Mobility Anchor; and updating a mobility binding table at the Home Agent such that a binding between the node and the care-of address of the node is generated; receiving a second registration request identifying the node at the Home Agent from a second Local Mobility Anchor when the node moves into a second region associated with the second Local Mobility Anchor and outside the first region associated with the first Local Mobility Anchor, wherein the second Local Mobility Anchor is a regional controller via which registration is performed when the node moves within the second region associated with the second Local Mobility Anchor such that the Home Agent does not receive registration requests identifying the node when the node moves within the second region associated with the second Local Mobility Anchor, the second registration request including a second care-of address field identifying an IP address associated with the second Local Mobility Anchor; and updating the mobility binding table at the Home Agent such that a binding between the node and the second care-of address is generated.