Patent ID: 8576796

Claim:
A method for registration of a mobile node comprising: receiving a registration request message at a local mobility anchor relating to the mobile node connected to a first foreign network, said registration request message including a mobile node identifier, an access type identifier that indicates that communication access type used to connect to the mobile node, a handover indicator that specifies whether the registration request message is associated with a handover to a new access type on the first foreign network or a handover to a second foreign network, and an interface identifier that indicates a specific access interface being used to connect to the mobile node; correlating information received in the registration request message against information on a cache entry table associated with the local mobility anchor; creating an entry on the cache entry table depending on whether a handover to the second foreign network is detected or a handover to the new access type on the first foreign network is detected; and transmitting a registration response from the local mobility anchor with a network prefix depending on whether said handover to the second foreign network is detected or said handover to a new access type on the first foreign network is detected.