Cisco ASA 8.2 to 8.4 to 9.1 version upgarde - How to deal with NAT ?

[Umesh Maharjan]

Hello, 

we need to upgrade cisco ASA IOS from 8.2 to 9.1. We tested in one test unit and found lots of error for NAT. Any suggestion how to deal with NAT in upgrades.

[JP Miranda Z]

Hi Umesh Maharjan,

You can use the following link to learn about the changes on the NAT from 8.2 to 9:

https://supportforums.cisco.com/document/33921/asa-pre-83-83-nat-configuration-examples

Hope this info helps!!

Rate if helps you!! 

-JP-

[Umesh Maharjan]

Hello JP,

Thanks for your response, its useful I will try it. 

except it, i need to upgrade from 8.2 to 8.4 to 9.1 cisco asa version too which has active/passive pair and multi context mode. Any idea how to upgrade without loosing context and configuration.

Thanks