The shared secret is a password that is configured on each network device and TACACS+ server. The shared secret is used to verify communication between network devices and the server.
To configure the shared secret for a primary TACACS+ server, specify primary. To configure the shared secret for a secondary TACACS+ server, specify secondary.
Do not use the encrypted keyword to set the shared secret. The encrypted keyword prevents the display of the shared secret in the show configuration command output.