Patent ID: 7609687
Filing Date: 2009-10-27
Classification: H04W

Abstract:
1. A home agent apparatus adapted for communicating with a plurality of mobile routers that are on an external network and for communicating with a home link on a home network of the home agent apparatus, each of the plurality of mobile routers accommodating communication between the home link and a terminal device on the external network, the home agent apparatus comprising: an interface connected to the plurality of mobile routers and the home link; a mobile router movement management section managing locations of the plurality of mobile routers that are connected to the external network and remote from the home network using a mobile router movement management table; an IP processing section determining a destination of a tunnel packet received from the plurality of mobile routers and outputting the tunnel packet to a tunnel packet processing section, responsive to a destination of the tunnel packet being a local scope; the tunnel packet processing section uncapsulating the tunnel packet and sending out the uncapsulated packet to the home link from the interface; a local packet reception processing section receiving a non-tunnel packet from the home link by the interface, determining a destination of the non-tunnel packet, and outputting the non-tunnel packet to a local packet transfer processing section, responsive to the destination being the local scope and having a destination other than the home agent apparatus itself; and the local packet transfer processing section which encapsulates the non-tunnel packet and transmits the encapsulated tunnel packet to all the mobile routers in the mobile router movement management table, regardless of the destination of the non-tunnel packet.