A network gateway device providing peer-to-peer proxy service is provided, including a P2P meta descriptor detector detecting an original P2P meta descriptor file from the public network, a P2P proxy control unit modifying the original P2P meta descriptor file to generate a modified P2P meta descriptor...http://www.google.co.uk/patents/US8032583?utm_source=gb-gplus-sharePatent US8032583 - Apparatus and method for providing peer-to-peer proxy services in peer-to-peer communications