Trouble shooting Static NAT

Unanswered Question
May 6th, 2010

Hi every body ,

I have a cisco 1800 series router configured with some static nat entries and running on network,the problem is automatically 1 static nat entry will dissapear(removed) .I am also clearing the nat buffer daily by using the command clear ip nat translation * but still i am fcaing same problem,and where ever is put the coommand clear ip nat translation  * the router restarts.pls finf the attached file of router configurration

thanks  a lot for help in advance

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dirkfeldhaus Fri, 05/07/2010 - 10:39

I'm not sure. Can be a problem with the IOS image. Have you already tried another image?

Also possible that there is a problem because the dynamic nat configuration might overlap with the static nat configuration.

You could test the configurarion without the dynamic nat configuration and check if the problem persists. Or reduce the scop of acl 1 for the dynamic nat.

Perhaps replace "access-list 1 permit any" with "access-list 1 permit 192.168.10.128 0.0.0.127". That way you can test the dynamic nat with 192.168.10.0/25.

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