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Community Member

PIX 520 & IOS 6.2.2 *CAUTION*

I attempted to load IOS 6.2.2 on a PIX 520 firewall. I was incredibly unsuccessful and violated my change window immensely. Essentially the software was not doing any PAT or NAT translation. I cleared all my configs and wrote only the NAT/PAT configurations and even that did not work. To resolve I rolled back to my previous IOS and used the same few configurations with easy success. I do understand that 6.2.2 is ED, but I never seen such disaster. Just FYI.

Community Member

Re: PIX 520 & IOS 6.2.2 *CAUTION*

I'm not sure that the problem was with NAT. It is possible that NAT coupled with some other command might have caused this. I just saw a couple of configuration, tested on 6.2.2 all of which were using NAT. All the same, it's never a good idea to use anything but General deployment versions in critical production networks, especially on firewalls where security might be compromised due to unknown loopholes.

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