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One Comment on “Which source NAT option would you use?

  1. BC says:

    Answer: C

    Here is explaination from JNCIS-SEC-P1 pdf doc, it would be Option 3 here:

    Three Options for Source NAT and PAT
    The Junos OS supports three methods to perform source NAT and PAT:
    • Interface-based source NAT, which is the translation of the original source IP address to the egress interface’s
    address always employing PAT;
    • Standard pool-based NAT, which is a dynamic mapping of the original source address to an address from a
    user-defined pool with or without PAT; and
    • Source NAT with address shifting, which is a one-to-one mapping of the original source address to a user-defined
    pool performed by shifting the IP addresses without PAT.




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