KOMMUNIKAITONSROUTEN-OPTIMIERUNGSVERFAHREN UND ENTSPRECHENDES SYSTEM

摘要

It is an object of the present invention that a suitable correspondent router or suitable route is found when route will be optimized between a mobile node (MN) or a mobile router (MR) and a correspondent node (CN) by using a correspondent router (CR). MN 125, the home agent (HA) 140 of MR 120 or a plurality of CRs forms collaborating relation in advance. A member of the collaborating relation maintains addresses of other members belonging to the same collaborating relation. When the address of CN 160 is embedded in the header portion (mobility header) of data 201 from MN or MR, HA refers to its list of other members to search a suitable CR 142 for CN 160. HA sends RBU message 204 including binding information of MN or MR to the found suitable CR 142. Thereby, MN or MR can establish a tunnel with CR and route is optimized.