Patent ID: 8724641
Filing Date: 2014-05-13
Classification: H04L

Abstract:
1. A communication system for performing relay processing between a first network that includes a plurality of virtual networks whose communication ranges are divided logically and a second network, the communication system comprising: a network relay processing unit that is connected to the first network and the second network and that has first correspondence information showing a correspondence between a first identifier for identifying a communication packet in the first network and a second identifier for identifying the communication packet in the second network and an identifier conversion part for converting the first identifier for identifying the communication packet based on the first correspondence information; and a packet processing unit that is connected to the second network and that includes a packet processing part for performing data reference and/or rewrite processing of the communication packet received from the first network, second correspondence information showing a correspondence between the packet processing part and the second identifier, and a packet distribution part for distributing the received communication packet to the packet processing part based on the second correspondence information.