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ASA5510 drops valid traffic

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12 years 8 months ago #37175 by jrecho
I have a asa5510 and I have my servers web, mail, DNS and terminal server on my Lan interface with security level set to 100 I have a NAT from outside Ip to the inside IP. all works fine other than the facts that ass soon as we do an email campaign the ASA starts treating the traffic as an attack. and when I connect via terminal server I get disconnected ever 3 to 5 minutes. When I do a ping from a machine to a server hosted on behind the asa 5510 drops 5 to 10 pings every 5 to 7 minutes. I am stuck and am seeking some help on the matter
I thought it was a ram issue and upgraded to 1024 but that was not the problem. I had customers complain about the sip server and was forced to put it behind a Linux firewall which fixed my problem.

Your help s appreciated
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12 years 8 months ago #37185 by S0lo
The ASA might be configured to do SMTP or ESMTP inspection. Try disabling inspection using the command no enable inspection. You might also need to remove any service-policy commands that are configured for the same purpose.

Studying CCNP...

Ammar Muqaddas
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