Route optimization method for network mobile service in IPv6 networks

A route optimization method for a mobile network service in IPv6, comprising the steps of:

• a) generating a binding update message at a home agent by using an address of a correspondent node obtained from a packet transmitted from the correspondent node to the home agent and data information included in a home agent binding cache, and transmitting the generated binding update message to the correspondent node when a mobile router performs a handover to a foreign link;
• b) extracting data information included in a mobile router binding list from the binding update message received from the home agent and performing a binding operation by adding an entry to a correspondent node binding cache;
• c) transmitting a data packet having a routing expanding header to a mobile router by using the binding information added to the correspondent node when the data packet is transmitted from a correspondent node to a mobile router;
• d) processing the routing expanding header at the mobile router and transmitting the data packet to the mobile node;
• and
• e) directly transmitting a data packet to the mobile node through the mobile router.