| 摘要 |
A communication apparatus allows access to be gained from a global address network to a private address network. An address converter assigns unique names (e.g., PC-B.home-a.com as an FQDN) to respective nodes (terminals A through D) belonging to the private address network and manages the nodes under the unique names. If there is an inquiry about a certain node from a certain node belonging to the global address network or another private address network, then the address converter acquires a corresponding private address (e.g., 192.168.0.2 if the inquiry is about PC-B.home-a.com) and notifies the node of the acquired private address. DNS servers for private address networks which do not belong to a tree of DNS servers on the global address network are provided in association with the respective private address networks, and are accessible from the global address network. Therefore, a name resolution for a private address can be achieved via the global address network.
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