| 摘要 |
PROBLEM TO BE SOLVED: To obtain a communication repeating system improving convenience and safety by changing a certification method for each computer. SOLUTION: In the communication repeating system connecting plural computers having communication systems by a communication line including a radio communication line and a communication network, computers 100, 200, 300, 310 are connected by executing certification in each computer based on a service/certification method correspondence table 202 storing service classes and certification system classes and the table 202 sets up the service/certification method of each computer based on past communication history. When plural computers 100, 200, 300, 310 connected through a communication line are disconnected due to the deterioration of a line state, the connection of a communication line other than the disconnected communication line is held, certification is executed based on the table 202 and the disconnected line is connected again. |
