| 摘要 |
PURPOSE:To attain mutual connection of communication networks with simple constitution by adding a communication network address of a communication net work to which a sender address belongs to the sender address attached to a communication message. CONSTITUTION:Communication networks A-C are connected mutually via network management sections 20a-20c and the communication networks A-C have computers 24, 25, 26.... The network management sections 20a-20c have a means adding a communication network address of a network to which a sender address to the sender address attached to a communication message and a means eliminating the communication network address of the communication network to which a destination address belongs from the destination address attached to the communication message. |
