ADDRESS CONVERTER, COMMUNICATION SYSTEM, AND ADDRESS CONVERSION METHOD

摘要

PROBLEM TO BE SOLVED: To continue communication with an external host even if a connection point is changed where a transmission packet of an internal host goes through in a multi-homing network.

SOLUTION: An address converter 3a comprises: a first conversion unit 23 which converts a transmission destination address of a packet to be transferred to a second communication device 4a in a second network 2 from a first communication device 91 via a first network 90 into an address on the second network 2 from an address on the first network 90; and an address information transmission unit 28 which transmits address information including an identifier of the first communication device 90 and an address on the first network 90 allocated to the second communication device 4a to another address converter 3b including a second conversion unit for converting the transmission source address of a packet from the second communication device 4a to the first communication device 91 into an address on the first network 90 from an address on the second network 2 allocated to the second communication device 4a.

COPYRIGHT: (C)2013,JPO&INPIT