Patent ID: 9037731
Filing Date: 2015-05-19
Classification: H04L

Abstract:
1. A relay communication system comprising: a first network; a second network; a first relay server connected to the first network; a second relay server connected to the second network, and configured to communicate with the first relay server via a third network; one or more client terminals connected to the first relay server via the first network; and one or more client terminals connected to the second relay server via the second network; wherein each of the first relay server, the second relay server, the one or more client terminals connected to the first relay server, and the one or more client terminals connected to the second relay server includes: each of the first relay server and the second relay server further includes: each of the one or more client terminals connected to the first relay server and the one or more client terminals connected to the second relay server further including a virtual address control unit programmed and configured to create virtual address information related to the VLAN device based on the response signal, and transmit the virtual address information to the VLAN device; and during a time when at least two VLAN devices are communicating with each other using the virtual address information and the VLAN session, if the suspension processing unit provides notification of the suspension of the VLAN device, the virtual address control unit deletes the VLAN device about which the suspension has been notified from the virtual address information, and the VLAN session control unit is configured to close the VLAN session related to the VLAN device about which the suspension has been notified.