Avatar of SvenIA
SvenIA
Flag for Netherlands asked on

Cisco ASA-5520 NAT rules gone after software upgrade

Hi Experts,

After a software/firmware upgrade of my ASA5520 (8.25 to 8.43) Firewall, all my NAT rules, ACL's and Object Groups are gone. I red on the internet that something could go wrong with the NAT rules only, but I didn't expect that eveything would be gone.

Of course i created a backup of the configuration before the update, but I can't restore it on the new firmware version.

Is there a solution or workaround for this problem? Or do i have to reconfigure the ASA?

~Sven~
Cisco

Avatar of undefined
Last Comment
SvenIA

8/22/2022 - Mon
ASKER CERTIFIED SOLUTION
fgasimzade

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
SvenIA

ASKER
Is it standard that everything is gone? Or does it work in some cases?

I have to perform another upgrade tomorrow.
fgasimzade

No, NAT syntax in pre 8.3 and 8.3 and later is different, so you have to configure NAT from scratch
SvenIA

ASKER
Is it only NAT? or do I have to reconfigure access lists and object groups also?
This is the best money I have ever spent. I cannot not tell you how many times these folks have saved my bacon. I learn so much from the contributors.
rwheeler23
SOLUTION
Jacob Kellemann

Log in or sign up to see answer
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform
Sign up - Free for 7 days
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
Not exactly the question you had in mind?
Sign up for an EE membership and get your own personalized solution. With an EE membership, you can ask unlimited troubleshooting, research, or opinion questions.
ask a question
SvenIA

ASKER
Thanks for the information!