Hi
turn it on
feature tacacs+
then use below , change the xxxx to your group name
aaa group server tacacs+ xxxxxx
aaa authentication login default group xxxxxx
aaa authentication login console group xxxxxx
aaa authorization commands default group xxxxxx local
aaa accounting default group xxxxx
tacacs-server host x.x.x.x key 7 "xxxxxxxxxxxxxxxxxxxxxxxx
tacacs-server host x.x.x.x key 7 "xxxxxxxxxxxxxxxxxxxxxxxx