ASA 5550 - IOS Upgrade

[dacruzer1]

Hello All,

I have a ASA5550, with a IOS version 8.2(5).

I would like to upgarde to the latest version, and I believe it is 9.1.1.

Any comments or tips that anyone wants to share, I would really appreciate it.

Thanks,

Alfred                  

[Julio Carvajal]

Hello,

First and most important:

Make sure u understand the changes on the NAT and ACL syntax from 8.3 and higher versions

Make sure u have the required memory to do it (In your case 5550, no memory need it to run the higher versions

Disable no-names before the upgrade

Disable Nat-control before the upgrade

https://supportforums.cisco.com/docs/DOC-12690

Here is an important link that I recommend every time someone asks for guidance through this critical major upgrade

Remember to rate all of the helpful posts.

For this community that's as important as a thanks.