Check your application's documentation and/or the application's  Integration Guide on RSA Link to see if it has a configuration option that will enforce access using only a single authentication source.  Applications that support RADIUS or Relying Party or SAML single sign-on will typically prevent authentication by any other means, once those options are enabled.  However, when HTTP Federation or Trusted Headers are used, there will probably not be a built-in means within an application that prevents bypass of the RSA Cloud Authentication Service.

An internal application or website protected by HTTP Federation or Trusted Headers can be limited to only accepting incoming connections from the RSA Identity Routers' proxy IP address, thereby denying access from any other source. This can be achieved with a firewall.