PIX 506 - Can inside and outside interface be on same subnet?

Discussion in 'Cisco' started by mvalpreda, Sep 5, 2007.

  1. mvalpreda

    mvalpreda

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    I have some servers at a co-lo facility and I want to change from a SonicWall to a PIX 506. I have a range from my co-lo of 64.X.X.225 to 64.X.X.238. I currently have the SonicWall at 64.X.X.225 and my servers all have public IP addresses.

    Since the SonicWall and PIX do things different, I have to use 2 IP addresses on the PIX. I want to set up the PIXs INSIDE interface to be 64.X.X.225 (to keep the gateway on the servers the same) and then make the outside IP address be one of my unused IP addresses.

    Is that doable? Or is there a better way to handle it? Will I need to subnet this out a little in order to make it work?
     
    mvalpreda, Sep 5, 2007
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  2. mvalpreda

    allan16

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    you are correct.
    the PIX will not allow you to have the same range of IP addresses on the inside and on the outside.

    It would be better to do a little subnetting to make this possible.
     
    allan16, Sep 7, 2007
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