Patent ID: 8244253

Claim:
A method for performing a handoff from a first access router to a second access router in a wireless communication system, the method comprising: sending, by the second access router, a Layer 2 (L2) beacon containing a link identifier prefix to a mobile node; and establishing a tunneling between the first access router and the second access router, wherein: the mobile node sends a Fast Binding Update (FBU) message comprising a care-of address (CoA) to the first access router; the mobile node dynamically constructs the CoA using the link identifier prefix; the second access router is new to the mobile node; and the link identifier prefix includes an access point prefix identifying a single access point connected to the second access router, the access point prefix being an access point prefix having a smallest value among a plurality of access point prefixes corresponding to a plurality of access points connected to the second access router.