Importance

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Abstract

An address interworking system and method for an internetwork that includes a first network using first network addressing communicating via one or more internetworking gateways with a second network using second network addressing. The gateways register one or more first network addresses in the second network as first network address-encapsulated or- mapped second network addresses. Reachability information regarding the first network-encapsulated or -mapped second network addresses is then disseminated through the second network. When a communication request containing a first network destination address is received from the first network at one of the gateways, the receiving gateway performs encapsulation or mapping of the first network destination address into a first network-encapsulated or -mapped second network destination address. It then routes a communication request containing the first network-encapsulated or -mapped second network destination address through the second network based on said disseminated reachability information.

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First Claim