ROUTE SELECTING SYSTEM, COMMUNICATION DEVICE USED FOR IT AND METHOD FOR SELECTING ROUTE

摘要

PROBLEM TO BE SOLVED: To provide a route selecting system easily selecting the optimal network (a route) for a communication by a simple constitution, and also to provide a communication device used for the route selecting system and a method for selecting the route.;SOLUTION: The route selecting system has: the communication device 1 selecting a selective network proper to the communication from a plurality of the networks 21 to 23; and an address register 41 provided on the selective network 21, to which the IP address of the selective network 21 is registered. The route selecting system further has a communication opposite device 3 acquiring the IP address of the selective network 21 from the address register 41 and communicating with the communication device 1 through the selective network 21 on the basis of the acquired IP address. Consequently, the communication opposite device 3 acquires the IP address of the selective network 21 optimum for the communication selected by the communication device 1 from the address register 41 and thereby uses the selective network 21 optimum for the communication on the basis of the acquiring of the IP address of the selective network 21, and the route selecting system is structured into a simple system as a whole.;COPYRIGHT: (C)2007,JPO&INPIT