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Configure Inside Out Rule for 2 external gateways 1 with NAT one without

GernotMeyer

Hi,

I have a XG behind a cable modem and a dsl modem.

Cable modem is already NATing so it is not sensfull to NAT from my LAN behind Sophos again. I route my traffic to that GW having a transfer network.

DSL modem is NOT NATing. So when using this way out I need to NAT.

How to configure failover between this 2 ways out? Is it possible?

Thanks for hints.



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  • 0

    Hi,

    I use Firewall-NAT behind NAT routers too.

    ... why not?


    Dirk

    Systema Gesellschaft für angewandte Datentechnik mbH  // Sophos Platinum Partner
    Sophos Solution Partner since 2003
    If a post solves your question, click the 'Verify Answer' link at this post.

  • 0 in reply to dirkkotte

    Hi Dirk,

     

    thanks für answer.

    1. doubbleNATing slows down the network (i learned once upon a time)

    2. voice (cloud telephony for example) recommend not to NAT more than one time.

    But in gerenal you are right. It works somehow.

     

    Gernot

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