Patent ID: 6574214
Filing Date: 2003-06-03
Classification: H04W

Abstract:
A method of communicating to a mobile node on a communications system having a home network for the mobile node, at least one foreign network, and at least one mobile foreign agent connected to the mobile node comprising the steps of:receiving at the mobile node home network an information packet addressed to the mobile node; encapsulating the information packet with a first header having an address of the mobile foreign agent; transmitting the encapsulated information packet to the home network of the mobile foreign agent at the address of the mobile foreign agent; decapsulating the first header of the information packet having the address for the mobile foreign agent; encapsulating the information packet with a second header having an address for a network coupled to the mobile foreign agent; transmitting the information packet to the network coupled to the mobile foreign agent as addressed in the second header for subsequent transmission toward the mobile node.