When configuring App-ID in Palo Alto Networks firewalls, it is crucial to pay attention to the “Depends on:” section in the application details. This section lists other applications required for the selected application to function correctly.
If you don’t allow the primary application and its dependencies through the firewall, the application will not work. Many engineers overlook this setting, leading to application failures and connectivity issues. Ensuring all dependencies are permitted is essential for proper application functionality.
