A system, method and gateway for dynamically assigning a home network address to a mobile node in a foreign network

摘要

Disclosed is a communication method allowing MN (mobile nodes 3) to acquire a home address in a visited network 5a, 5b. A communication system comprises a home network 6 installed with a home agent 1 for holding mobile terminal location information and, a visited network 5a, 5b installed with a radio communications device for communicating with that mobile terminal 3, and gateway equipment 2 in the visited network 5a, 5b for forming an interface with the home network 6. The radio communication device contains an access request transfer means for forwarding access requests from a mobile terminal 3 of the visited network 5a, 5b to the gateway equipment 2, and the gateway equipment 2 makes an acquisition request to the home agent 1 for an identifier of that mobile terminal 3, and forwards that acquired identifier to that mobile terminal 3. IMAGE