| 摘要 |
A relay server (3) mainly includes a VPN group information storage part, an address filter information storage part, and a communication control part. The VPN group information storage part stores information concerning routing apparatuses that form a VPN group and a routing session. The address filter information storage part stores address filter information in association with identification information of the routing apparatus. The communication control part performs controls for: upon detection of that an address included in the address filter information overlaps, causing a translated address to be associated with the overlapping address, and transmitting the translated address to another routing apparatus; and performing routing based on the address filter information and the translated address. |
