| 摘要 |
A method for translating non Internet unique addresses of a home networ k device to an Internet unique address for internet communication through a router. Every device within a given home network is assigned three addresses:(i) a configured address identical to the network address of the router enabling access to an Internet; (ii) a logical address visible only to the other devices in the same home network; and (iii) a medium access control ("MAC") address. Every packet originating from a home network source device includes its MAC address, the router MAC address, its configured address and the network destination address, and is forwarded to its destination through the router. The router examines the network destination address to determine whether the communication is intranet or internet. For intranet communications the router replaces the configured address of the home networ k source device with the logical address of the home network source device, the logic al address of the home network destination device with the configured address, its MAC address with the MAC address of the home network destination device, and forwards th e packet to the home network destination device. For Internet communications t he router forwards the packet along the Internet without replacing any of the sourceor destination information in the headers of the packet. Based on the source MA C address, however, the router records the logical address of the home network source device as well as the DA, SP, DP and PT in order to identify a response to t he packet from the Internet destination device.
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