Patent ID: 7233995
Filing Date: 2007-06-19
Classification: H04L

Abstract:
1. A network connecting method that processes communications between a first multi-media terminal having a first terminal address in a first address space and a second multi-media terminal having a second terminal address in a second address space, comprising the steps of: (a) providing a proxy device having a first proxy address in the first address space and a second proxy address in the second address space; (b) transmitting packets from the first multi-media terminal to the proxy device using the first terminal address as a source address and the first proxy address as a destination address in headers of the packets, the packets also including the second terminal address in data areas of the packets; (c) in the proxy device, modifying the packets received from the first terminal by translating the addresses in the headers and data areas of the packets, the source address being translated to the second proxy address and the destination address being translated to the second terminal address; (d) transmitting the packets modified in step (c) from the proxy device to the second multi-media terminal; (e) transmitting packets from the second multi-media terminal to the proxy device using the second terminal address as the source address and the second proxy address as the destination address in the headers of the packets and the first address in the data areas of the packets; (f) in the proxy device, modify the packets received from the second multi-media terminal by translating the addresses in the headers and data areas of the packets, the source address being translated to the first proxy address and the destination address being translated to the first terminal address; and (g) transmitting the packets modified in step (f) from the proxy device to the first multi-media terminal.