Patent ID: 7426746

Claim:
A method, comprising: indicating that a correspondent registration process needs to be performed for a mobile node for which a home network registration process has been performed or needs to be performed with its home network, thereby to register current network address of the mobile node with the home network, wherein the correspondent registration process includes transmitting a binding update to a correspondent node of the mobile node, wherein the binding update includes location-related information about the mobile node, and wherein the location-related information enables one of the correspondent node, or a third party to determine a geographic location of the mobile node within a certain accuracy; authenticating the correspondent node in response to the indicating, the authenticating yielding identity information about the correspondent node; determining whether the correspondent registration process is to be carried out, based on the identity information; and performing the correspondent registration process when the determining indicates that the correspondent registration process is to be carried out and omitting the correspondent registration process when the determining indicates that the correspondent registration process is not to be carried out.