Preparing spare routers and firewalls

[erickp]

Hi Everyone,

I am fairly new at networking so please bear with me.

I have a customer (without Smart Net) who has 2 locations with each an ASA 5505 and a 3560. He also has a spare of both in case one fails. I've heard of the way the ASA made changes in how NAT is configured between version 8.2 and later.

My question is : Can a 8.2 config be transferred to a version 9 OS without change? Or will the NAT rules have to be changed when being moved to v9? Is v9 backwards compatible with 8.2 configs?

Thank you,

Erick P.

[balaji.bandi]

Suggest to read the difference as per the below URL

I will however link a document about the new NAT format

https://supportforums.cisco.com/docs/DOC-31116

And other good document that compares the old/new NAT format

https://supportforums.cisco.com/docs/DOC-9129

Look at the upgrade path also.

To upgrade to 8.3, we must be at 8.2

To upgrade to 9.x, we must be running a 8.3 or 8.4. 

BB

[erickp]

Thanks for the reply. I did some testing today and indeed it does take some manual work to do an upgrade between the 2. The automatic conversion feature can't do it all properly.

Erick