Patent ID: 8619817
Filing Date: 2013-12-31
Classification: H04L

Abstract:
1. A method of operating a communication system comprising: receiving, in a Radio Access Network (RAN) gateway system, a first Internet Protocol (IP) message sourced from a first IP address and a first port number and directed to a second IP address, encoding the first IP address and the first port number in a port code to allow a source IP address field of the first IP message to carry a different IP address than the first IP address; in the RAN gateway system, processing the second IP address to identify a RAN address, and transferring the first IP message as sourced from the second IP address and the port code and directed to the RAN address, wherein the first IP message now identifies at least two source IP addresses by including the second IP address and the port code that identifies at least the first IP address; receiving, in a RAN base station, the first IP message, and in response to the first IP message being directed to the RAN address, wirelessly transferring the first IP message to a routing system; and wirelessly receiving, in the routing system, the first IP message, translating the second IP address into a Local Area Network (LAN) address, and transferring the first IP message directed to the LAN address.