Patent ID: 7836150
Filing Date: 2010-11-16
Classification: H04L,H04M

Abstract:
1. A method for a first device in a first local area network (LAN) to communicate with a second device in a second LAN over a public computer network that couples the first and the second LANs, the method comprising the first device: discovering a first Universal Plug and Play (UPnP) enabled router in the first LAN, the first UPnP enabled router having a first public network address; configuring a mapping table of the first UPnP enabled router to associate at least a first port number to the first device; establishing a secondary communication connection to the second device over a secondary communication channel to perform at least one of following: establishing a network connection to the second device over the public computer network using the second public network address and at least the second port number to exchange data packets with the second devices.