Patent ID: 7609701
Filing Date: 2009-10-27
Classification: H04L

Abstract:
1. A system for communicating between a first private network and a second private network, the system comprising: a first device in the first private network, having a first interface at which a first end of a tunnel is terminated, the first device being coupled to a first NAPT (Network Address Port Translation)-enabled device, and comprising a first address module and a first tunneling module that corresponds to a first local address within the second private network; a second device in the second private network, having a second interface at which a second end of the tunnel is terminated, the second device being coupled to a second NAPT-enabled device and comprising a second address module and a second tunneling module that corresponds to a second local address within the first private network; a server device, coupled to the first device and the second device, that provides information related to a location of the first device in the first private network and the second device in the second private network and facilitates NAPT penetration and the tunnel; and wherein the first address module enables the first tunneling module to communicate with the second device by penetrating the second NAPT-enabled device based on the second local address and the information received from the server device.