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ACS tacacs authentication faild

ybelkassem
Beginner
Beginner

hi  ,

we have a ACS server V4 installed on W2003 server ,when we make a telnet to an equipement on the wan the authentication pass on the first

connexion ,but when we telent to a switch on the lan the first connxion fails and we need to retry to login .

when i check the  field attempt log on the ACS i dont find the field attempt.

i find this issue in ALL switch on the LAN ,from the switch i can ping the the ACS server .this problem appear frequently

1 Reply 1

Jatin Katyal
Cisco Employee
Cisco Employee

can you telnet to port tcp 49 from the LAN switches?

telnet 49

If you see that port tcp 49 is open then try to capture the following debugs:

debug tacacs

debug aaa authentication

Regards,

Jatin

~Jatin
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