A method and apparatus for managing a mobile Internet protocol (IP) using network address translation (NAT) in a mobile network are provided. The method includes periodically receiving an agent information message from an agent on a network, and checking a connection to a home network or a foreign network....http://www.google.de/patents/US7423998?utm_source=gb-gplus-sharePatent US7423998 - Method and apparatus for managing internet protocol using network address translation in mobile network
