Tunneling Continued/ End-to-End Principle. CS 4251: Computer Networking II Nick Feamster Spring 2008. Why Tunnel?. Security E.g., VPNs Flexibility Topology Protocol Bypassing local network engineers Oppressive regimes: China, Pakistan, TS… Compatibility/Interoperability
CS 4251: Computer Networking IINick FeamsterSpring 2008
Router can forward traffic to the same destination on different interfaces/paths.
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