| 摘要 |
PROBLEM TO BE SOLVED: To prevent a loop repeating data relaying by automatically recognizing a communication opposite party and the mane of a logic between networks through a data relaying interface. SOLUTION: In a data relaying method providing plural routers 11, 12, 21 and 22 connecting plural networks 10 and 20 and relaying specific data transmitted from another device 13 on a network to a prescribed destination 23 based on route information previously set to its own equipment, the routes are respectively provided with a specific data destination port and a transmission destination table storing the relaying interface of a transfer destination corresponding to the destination port to judge whether a relaying interface being the transmission source of received specific data and that of a transferring destination extracted from the transfer destination table are coincident with each other to stop the transmission processing of specific data at the time of coincidence. |
