Define the Security Server-

hostname

Name of the TACACS+ server.

ip-addresss

IP address of the TACACS+ server.

single-connection

(Optional) Specify that the router maintain a single open connection for confirmation from the AAA/TACACS+ server. This command contains no autodetect feature and fails if the host isn’t running a Cisco Secure daemon.

port port#

(Optional) Overrides the default port number (49) with any number from 1 to 65535.

timeout seconds

(Optional) Overrides the global timeout value set with the global tacacs-server timeout command for this server only.

key string

(Optional) Specifies an authentication and encryption key. This must match the key used by the TACACS+ daemon. Overrides the key set by the global command tacacs-server key for this server only.