ACS tacacs authentication faild

[ybelkassem]

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

[Jatin Katyal]

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