Patent ID: 8699480
Filing Date: 2014-04-15
Classification: H04L

Abstract:
1. A method of operating a tunnel point which provides a tunnel between a router group including at least one router and a mobile node, the method comprising: providing a tunnel between the mobile node and the router group by authenticating the mobile node; receiving a packet including an identifier (ID) of a target node from the mobile node; converting the ID of the target node in the packet into a locator corresponding to the ID of the target node regardless of whether the mobile node is connected to a home agent or an external agent; transmitting a packet including the converted locator to the router group; and maintaining the ID of the mobile node by authenticating the mobile node through the router group when the mobile node is connected to another external terminal node, wherein a first tunnel point requests the ID of the mobile node and locator mapping information from a second tunnel point to which the home agent of the mobile node is connected, converts the ID of the mobile node into a locator of the mobile node based on the information delivered from the second tunnel point, and transmits a packet including the locator of the mobile node directly to a third tunnel point to which the external agent of the mobile node is connected.