Hi Rushi,
Thanks for your reply. Below are the configurations. Nothing is wrong right?
set auth-server "external" id 1
set auth-server "external" server-name "172.16.2.202"
set auth-server "external" account-type admin
set auth-server "external" type tacacs
set auth-server "external" tacacs secret "afkwf5nh6xo"
set auth-server "external" tacacs port 49
set admin auth server "external"
set admin auth remote root
set admin privilege get-external
Rgds,
Zul