METHOD FOR PERFORMING ROAMING AMONGST MULTIPLE IP NETWORKS

摘要

A method of allowing subscribers of a computer network to roam among a plurality of networks. When the subscriber attempts to communicate from a network he is visiting, the visiting network server will communicate with the home network server to verify the authenticity of the subscriber. Once authentication is completed, the visiting server will issue a temporary visiting if address to the subscriber. The visiting network will also advise the home network of the temporarily assign ed IP address. The home network stores the temporary IP address in an IP address translation database. The subscriber will then be able to communicate with h is home network from the remote network and receive all of the network services available to him from his home network. The subscriber utilizes a roaming terminal having a permanent IP address to connect to the visiting network.