05-04-2008 10:17 AM - edited 03-10-2019 03:49 PM
i have two switches and one router behind ASA5520 , these devices can't authenticat from ACS
there is no failed attempt on the ACS
i open all ports through ASA5520 but it doesn't work
05-04-2008 06:01 PM
Mohammed
Your post implies but is not clear that traffic from the router and switches must go through the ASA5520 to get to ACS. Can you clarify that this is the case?
If there is an ASA in the path from router and switches to ACS, my first guess would be that ASA was not allowing the traffic. Can you tell us whether the router and switches are using TACACS or Radius to request authentication with ACS? And can you post the parts of the config of the ASA in which you open the ports?
There might be some other causes of this problem. Can you verify whether the router and switches have IP connectivity to the ACS? If you traceroute from the router and switches to the ACS does the traffic take the path that you expect?
Is it possible that there is some config error in the router and switches - is there possibly an incorrect server address or incorrect key?
If you run debug for authentication (TACACS or Radius, whichever you are using) and attempt to authenticate what is in the debug output?
HTH
Rick
05-04-2008 09:24 PM
yes the traffic should go through ASA5520 to get to ACS.
i can ping from ACS to switches and router.
i can telnet from switches and router to ACS using port 49
the router and switches using TACACS to authenticate with ACS
the ip address for server is correct and key also
i have the same senario with ASA 7.0 not 7.1 and i don't have any problem
05-05-2008 08:35 AM
Do you have acs appliance or acs windows ?
05-05-2008 10:46 PM
it is ACS appliance 4.1
05-06-2008 10:01 AM
Go to
Network configuration > Proxy Distribution Table > (Default).
swap the entry in this section under tables AAA Server and Forward to > Submit + Restart.
Regards,
~JG
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