Multiple ISP natting with single private IP in PIX

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Aug 30th, 2008
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I do have 2 ISP terminating into Cisco PIX. I do have internal server in LAN zone. I wan to do natting the private ip of the server with 2 ISP's simultaneously. Is this possible?

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Farrukh Haroon Sat, 08/30/2008 - 11:02
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The NATing is possible, but what will you do about the default routes? The PIX supports default routes pointing out to only ONE of its interface at the same time, not more than one.

Or this is an active/backup scenario?


manjesin Sat, 08/30/2008 - 18:33
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you can nat private ip address of server with 2 ISP's public ip address.... but only one will work at a time. When ISP1 goes down the server is access via ISP2 public ip address and vise-versa.

It will only work in Active\standby scenario.. same goes with your internet traffic.



acharyr123 Sat, 08/30/2008 - 21:51
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I do have only 1 pix.

If such solution is possible iwth pix then why should people go with Radware such device???

Farrukh Haroon Sat, 08/30/2008 - 22:38
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Other firewalls in the market support this, Cisco PIX does not.




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