ASA 5500 IOS differences?

[hugochengym]

Hi ALL

We are now using image 8.0(4) for my ASA 5510. Later on, I would like to upgrade the image to 8.4(3).

May I have to know what difference for those images, what should I take care of the script?

Hugo

[varrao · Accepted solution]

Hi Hugo,

There are a few major differences as compared to NAT and ACL logic in the software versions 8.3 or later. I would suggest you go through the 8.4 release notes first, to understand the new features in it, and also go through the new NAT logic and syntax to make yourself familiar with it.

Here are a few links whioch wud help you:

https://supportforums.cisco.com/docs/DOC-12690#comment-7803

https://supportforums.cisco.com/community/netpro/security/firewall/blog/2011/05/26/video-asa-83-upgrade--what-you-need-to-know

https://supportforums.cisco.com/docs/DOC-12324

https://supportforums.cisco.com/docs/DOC-9129#comment-3934

Hope that helps,

Thanks,

Varun