About authentication policies
The Smoothwall Filter processes policies in order of priority, from top to bottom until it finds a match. Transparent authentication policies and nontransparent authentication policies are displayed in separate tables so that you can manage both authentication policy types.
You can use the Policy wizard to create transparent and nontransparent web proxy authentication policies. The Smoothwall Filter applies authentication policies in the order they're displayed on the Manage policies page. You can change the order the policies are applied. You can make changes to existing authentication policies, including turning them off for later use, without removing the policy.