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VIRTUAL PRIVATE LINE NETWORK CONNECTION CONTROL METHOD, VIRTUAL PRIVATE LINE NETWORK CONNECTION CONTROLLER AND VIRUTAL PRIVATE LINE NETWORK CONNECTION SYSTEM
VIRTUAL PRIVATE LINE NETWORK CONNECTION CONTROL METHOD, VIRTUAL PRIVATE LINE NETWORK CONNECTION CONTROLLER AND VIRUTAL PRIVATE LINE NETWORK CONNECTION SYSTEM
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机译：虚拟专线网络连接控制方法，虚拟专线网络连接控制器和虚拟专线网络连接系统
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摘要
PROBLEM TO BE SOLVED: To provide a virtual private line network connection control method, its controller and system for connecting VPN devices which even in a communication environment where an IP address is dynamically allocated such as internet connection by means of dial-up.;SOLUTION: The instruction of connection to the Internet is given to the VPN device 20b of a stronghold-side from a VPN connection control part 12, installed in a VPN connection controller 10 via the VPN device 20a and a B2 channel 32a on a center-side and an ISDN network 75. The VPN device 20b receives the instruction and connects it to the connection device 60b of ISP, by using a B1 channel 31b and receives the allocation of the IP address from ISP. The IP address is notified to the VPN connection control part 12 and is written into a state managing table 14. Then, the IP address of the VPN device of a calling destination side is transmitted to the VPN device of a calling source side by communication by using the B2 channel.;COPYRIGHT: (C)2002,JPO
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