Virtual private network system, includes administrators which output commands to respective nodes, for communicating through tunnel network

摘要

Two batches of tunnel configuration data and back-up configuration data are assigned to respective tunnel nodes with administrators. The administrators output commands to respective nodes, for communicating through a tunnel network connected between the tunnel nodes. Independent claims are also included for the following: (a) Communication method in virtual private network system; (b) Recording medium with computer program for implementing private network.