We have from 2 days an error message shown from ASA5520 on syslogserver.
I am troubleshooting in order to find any mac or anything else for source of problem.
It is important to tell that they are two ip from domain controllers which generating this event.
1187441 3/23/2010 09:09 192.168.6.1 Critical :Mar 23 00:14:34 CEST: %ASA-session-2-106017: Deny IP due to Land Attack from AD1 to AD1
Could you advice me how to localize this error and what is causing it?