method for administering roaming from a mobile node on a visited network, authentication, authorization and accounting server for use on a visited network and gateway node for use on a mobile internet protocol network proxy

摘要

method for managing roaming from a mobile node on a visited network, authentication, authorization and accounting server for use on a visited network and gateway node for use on a mobile internet protocol network proxy a method is provided to manage roaming from a mobile node in a visited network. the mobile node is associated with a home network. in the visited network, a server selects a gateway node for use by the mobile node based on selection criteria. the gateway node is arranged between the home network and the visited network. the server then sends a message to an access node on the visited network to which the mobile node is attached, the message identifying the selected gateway node. this instructs the mobile node to communicate with its home network through the selected gateway node.