METHOD OF REGISTERING CURRENT POSITION OF MOBILE NODE WITHIN MOBILE STATION IN MOBILE IP NETWORK, ESPECIALLY CONCERNED WITH SUBORDINATING MOBILE NODES WITHIN MOBILE OBJECT TO ONE MOBILE NODE GROUP SO THAT AN INTEGRATED MANAGEMENT AGENT CAN COLLECTIVELY REGISTER CURRENT POSITIONS OF THE NODES

摘要

PURPOSE: A method of registering a current position of a mobile node within a mobile station in a mobile IP network is provided to enable an integrated management agent to register position information of mobile nodes at a time without individually registering the information, thus the mobile nodes do not have to change into other position information although the mobile modes move to other network area. CONSTITUTION: A mobile router recognizes a current position by receiving an advertising message from an FA1(Foreign Agent 1)(S400), and requests an HA(Home Agent) to register position information and transmit IP addresses for mobile nodes(S410). The HA collectively registers the position information of the IP addresses and the mobile router(S420). If one of the mobile nodes within a mobile station participates, the mobile router assigns one of the IP addresses to the mobile node(S430). If the mobile station moves to other subnet area(S440), the mobile router receives the advertising message to recognize changed current position information(S450). The mobile router requests the HA to change into an IP address of an FA2 of the subnet(S460). The HA collectively changes the position information of the IP addresses(S470).