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Webcast-Catalyst9k
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WCCP IP Spoofing details?

Hi everyone,

I'm trying to understand how WCCP works when doing IP spoofing on Assymetric networks. I have not been able to find any documentation that explains the actual exchanges of packets/information when this happens, for instance:

    • Which traffic goes inside GRE tunnels and which one does not?
    • How are TCP sessions handled?
    • How is the IP spoofing performed?
    • How does the ACK/SEQ rewriting happens?
    • When an end user request was received by a router, spoofed and sent to the origin server, it may come back to another router (assymetric network). How is this handled?

I do not have access to the protocol as I am making a high level design in order to choose whether WCCP is appropriate for my network.

Does anybody know a good document where WCCP IP Spoofing is properly explained and detailed?

Thanks in advance

Antonio

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