The Authentication Source panel displays the authentication method that is currently
enabled. By default, the authentication method is set to Local Authentication.
Before you can change the authentication source to use remote authentication, you
must configure those options. See
Authentication and authorization.
When you enable an authentication source, you can specify users that must always be
authenticated locally regardless of the designated authentication source. The SMS
does not support the use of RADIUS, Active Directory, TACACS+, and CAC authentication
on the same SMS server.