IP handoff process method and system for connection of internet protocols between mobile agents in heterogeneous network

摘要

An IP handoff process method and Internet service system are provided. In the IP handoff process method, a registration request message for multiple IP handoff is received from a mobile station having a plurality of Internet protocol (IP) addresses through a currently-moving mobile agent of the mobile station. Then, the registration request for multiple IP handoff is processed according to information included in the received registration request message. A reply message thereof is transmitted according to the result of updating the information to the mobile station through the currently-moving mobile agent. Then, the received registration request message is transmitted to a previous mobile agent of the mobile station before moving and a home agent of the mobile station as it is.