SonicOS 7 Rules and Policies

App-based Routing

App-based Routing is a kind of PBF (policy-based forwarding) rule that allows traffic to take an alternative path from the next hop specified in the route table and is typically used to specify an egress interface for security or performance reasons.

When an App-based Route entry is created, at the beginning the appliance does not have enough information to identify the application and, therefore, cannot enforce the route entry. As more packets arrive, the appliance determines the application and creates an internal entry in the App-ID cache, which is retained for the session. When a new session is created with the same destination IP address, destination port, and protocol ID, the appliance could identify the application as the same from the initial session and apply the App-based Route. Therefore, a session that is not an exact match and is not the same application, cannot be forwarded based on the App-based Route.

This feature is available only when Gateway AV/Anti-Spyware/Intrusion Prevention/App Control/App Visualization is licensed and App Control is enabled in POLICY | Rules and Policies > App Rules.

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