Issue with ASA losing static nat rules

[mbluemel]

I have a customer with an ASA 5510 with asa915-k8.bin software running. The static nat rules keep disappearing for no apparent reason. The rest of yhe configuration is unaffected.

[Maykol Rojas · Accepted solution]

There is an specific bug that affected that version.

You can take the output of "show startup-errors" and you should be able to see the errors saying "unable to reserve ports".

Probably the bug is:

https://tools.cisco.com/bugsearch/bug/CSCuo37603/?reffering_site=dumpcr

Mike.

[mbluemel]

Thanks very much for that. We did actually do a software upgrade and the issue hasnt occured again. Nice to know what was causing it for future reference.

[Maykol Rojas]

You are very welcome.

Mike.