Patent ID: 8724513
Filing Date: 2014-05-13
Classification: H04L

Abstract:
1. A method for providing communication between a first network and a second network, the method comprising: transmitting an advertisement to a first subnet of the first network advertising the accessibility of a second subnet of the second network, wherein the first network is disjoint from the second network, wherein the advertisement includes a second address and a second unique subnet identifier corresponding to the second subnet, wherein a first address and a first unique subnet identifier are associated with the first subnet, and wherein unique subnet identifiers disambiguate overlapping addresses; receiving a request from the first network to establish communications with the second network, wherein the request identifies the first address and the first unique subnet identifier corresponding to the first subnet and the second address and the second unique identifier corresponding to the second subnet; establishing a first tunnel between a provider node and the second subnet; establishing a second tunnel between the provider node and the first subnet; and directing, by the provider node, a transmission between the first tunnel and the second tunnel based on policy information which results in communication between the first network and the second network.