| 摘要 |
A communication server device includes: a management information registration unit for registering at least a combination of virtual addresses and real addresses of a plurality of terminal units as management information in correspondence with a service type and a communication port of the local device; and an address determination unit for searching, upon reception of a communication start request designating the virtual address and the service type of any of the plurality of the terminal units from another terminal unit, the management information with the combination of the virtual address and the service type as a key and determining the real address and the communication port used as a transferee of the communication start request.
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