摘要 |
A virtual network is dynamically created in the event of constructing a relay communication system. Between a first relay server and a second relay server, a VLAN device information sharing unit shares VLAN device information including interface information of client terminals capable of functioning as VLAN devices in a relay group. A VLAN group information creation unit edits the VLAN device information, thereby creating VLAN group information formed by grouping the client terminals indicated in the VLAN device information. A VLAN group information sharing unit shares the VLAN group information among the first relay server, the second relay server, the client terminal connected to the first relay server, and the client terminal connected to the second relay server. |