Residential gateways (often called routers) are frequently used in homes to connect to a broadband service, such as IP over cable or DSL. A home router may allow connectivity to an enterprise via a secure Virtual Private Network.
While functionally similar to routers, residential gateways use network address translation instead of routing. Instead of connecting local computers to the remote network directly, a residential gateway must make local computers appear to be a single computer.
While functionally similar to routers, residential gateways use network address translation instead of routing. Instead of connecting local computers to the remote network directly, a residential gateway must make local computers appear to be a single computer.
source:wikipedia
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