Hi All...
Below is the configuration i had done onto the switch for AAA.
aaa new-model
aaa group server tacacs+ tacgroup
server 172.30.xx.xx
server 172.30.yy.yy
!
aaa authentication login default group tacgroup enable
aaa authentication enable default group tacgroup enable
aaa authorization console
aaa authorization exec default group tacgroup if-authenticated
!
ip tacacs source-interface Vlan34
!
tacacs-server host 172.30.xx.xx
tacacs-server host 172.30.yy.yy
tacacs-server directed-request
tacacs-server key 7 060506324F41
!
line con 0
session-timeout 5
exec-timeout 5 0
password 7 11481D0029021E0201
transport output telnet ssh
line vty 0 4
session-timeout 5
exec-timeout 5 0
password 7 13441317351C11242E
transport input telnet ssh
transport output telnet ssh
line vty 5 15
transport input lat pad mop udptn telnet rlogin ssh nasi acercon
!
!
Initially everything was working fine when i configured ACS SE 4.1. I was able to login through tacacs without any issues. But suddenly after a month without any changes it strted creating problem for me. One by one i m lossing telnet access to all my devices.
What happens is when i telnet the device it shows blank screen & after a while it displays
% Authentication failed.
Connection to host lost.
Also i lost my console connection to devices. I even tried disconnecting my ACS SE from the network but still the same problems come & its giving getting to fallback password.
Its critical can some one tell me is it an ACS issue or some problem with the IOS i m using. IOS ver is 12.2(33)SXH1
