Cisco ASA-5520 NAT rules gone after software upgrade

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    Svenster
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    #158805

    Hi All,

    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~

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