Patent ID: 8279807

Claim:
A communication control method in a communication system that configures a network domain implementing a network-based local mobility management protocol, the communication system including a location management node having a function of managing location information of a mobile terminal connecting with the network domain, a proxy registration node having a function of registering location information of the mobile terminal as a proxy, and an authorization server that authorizes the mobile terminal, the method comprising the steps of: a prefix acquisition step where the mobile terminal with the network domain as a home domain acquires a plurality of prefixes; an address acquisition step where the mobile terminal acquires a plurality of addresses from the plurality of prefixes; an address notification step where the mobile terminal notifies the proxy registration node in the network domain of the plurality of addresses; and a binding registration step where the proxy registration node registers, with the location management node, binding information on each of the plurality of addresses received from the mobile terminal, and wherein the proxy registration node uses, as the binding information of the mobile terminal registered with the location management node, first binding information and second binding information, the first binding information associating a home address of the mobile terminal or a domain prefix assigned to the mobile terminal from the authorization server with an address or a prefix of the proxy registration node, and the second binding information associating the home address of the mobile terminal with an on-link address configured with an on-link prefix of a connection point of the mobile terminal.