Two-layer cross-network segment communicating method, system and equipment

TL;DR: In this article, a method of two-layer cross-network segment communication, a system and a device, is described. But the method is used in a network including a first router and a second router equipment, the first router equipment is mutually a home agent and a foreign agent; the router equipment as foreign agent collects local terminal equipment information by intercepting free ARP requirement.

Abstract: The invention discloses a method of two layers cross-network segment communication, a system and a device. The method is used in a network including a first router equipment and a second router equipment, the first router equipment and the second router equipment are mutually a home agent and a foreign agent; the first router equipment locates in a first network, a first terminal in the first network accesses with a public network; the second router equipment locates in a second network, a second terminal in the second network accesses with the public network through the second router equipment. The router equipment as foreign agent collects local terminal equipment information by intercepting free ARP requirement, and processes router register to the home agent. The method can realize different place two layers cross-network segment communication simply by using the method of the mobile IP router register and mobile IP chunnel transfer. The method has wide suitable range and has not strict requirement to the middle network.