VIRTUAL COMMUNICATION PASSAGE CONNECTION SYSTEM, CONTROL METHOD, AND CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To process respective virtual private network (VPN) connection requests when a large amount of connection requests are received.

SOLUTION: A virtual communication passage connection system includes a first terminal and multiple second terminals. The second terminals establish virtual communication passages with client terminals via the first terminal. When session initiation protocol (SIP) connection requests, which include establishment information being the information to establish the virtual communication passages with the client terminals, are received, the first terminal respectively transmits the establishment information included in the received SIP connection requests to the multiple second terminals. The second terminals transmit prescribed responses to the first terminal when receiving the establishment information. The first terminal performs control to establish the virtual communication passages between the second terminals to be the transmission sources of the initially received prescribed responses and the client terminals by receiving the prescribed responses and transmitting the initially received prescribed responses to the client terminals.

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