The firewall uses the management (MGT) interface by default to access external services, such as DNS servers, external authentication servers, Palo Alto Networks® services such as software, URL updates, licenses and AutoFocus. An alternative to using the MGT interface is to configure a data port (a regular interface) to access these services. A service route is the path from the interface to the service on a server. Strata Cloud Manager allows you to customize service routes for various services or Use Management Interface for all services.