PACKET COMMUNICATION APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide packet communication apparatus (DNS relay server) which searches for a corresponding address from a domain name imparted to equipment connected with a network and relays a message to be used for searching for the domain name from the address.

SOLUTION: The packet communication apparatus is provided with a correspondence relation holding means for holding correspondence relation between a part depending on the network of the address to be used in a first network and an address conversion means, an address conversion means selection means for selecting the address conversion means based on the address included in a received packet, an address acquisition means for acquiring an address for replacement for replacing the address included in the received packet from the selected address conversion means and an address replacement means for replacing the address included in the received packet by using the acquired address for replacement.

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