Redirecting sessions over different paths using policy-based forwarding
Policy-Based Forwarding (PBF) allows you to set up rules that let certain sessions bypass routing entirely. In the first stage of packet processing, a session can be sent over a different interface than what the routing table would normally dictate. This could be handy if you want to send certain sessions over a secondary ISP link (or leased line) or if you need to ensure packets go out on a specific VLAN, tunnel, or SD-WAN interface.
Redirecting critical traffic
A common scenario is a small office with a cheap but unreliable DSL or cable uplink with high bandwidth for internet traffic and a reliable but expensive link for business-critical applications. While the default route in the virtual router directs all traffic out of the DSL or cable model, a PBF rule could redirect critical protocols, such as SAP, SQL, and so on, over your leased line:
- Go to Policies | Policy Based Forwarding to create...