Patent ID: 8565227

Claim:
A data communication system comprising a home agent, a correspondent node capable of communicating with the home agent, a mobile router, and a mobile network node capable of communicating with the mobile router, the mobile router comprising: a plurality of communication equipment of a communication service containing a same or different types of services; a control table which stores a plurality of addresses each respectively assigned to one of the plurality of communication equipment, and respective route information of the plurality of communication equipment, such that respective address and route information are associated with each other; and a transferor which receives a packet from the mobile network node to the correspondent node, selects usable communication equipment based on information of the control table, and transfers the packet to the home agent, the home agent comprising: an address identifier that identifies the address assigned to the usable communication equipment of the mobile router; a home agent control table which stores the identified address and route information of the address, such that the address and the route information are associated with each other; and transferor which receives a packet from the correspondent node addressed to the mobile network node, selects an address based on information of the home agent control table, and transfers the packet to the address, wherein a logical line, through which the mobile network node and the correspondent node communicate with each other, is configured by combining lines of the plurality of communication equipment.