Fortigate Firewall Policy Routing through particular WAN connection

If you have multiple WAN but not configure all WAN in one single SD-WAN group but want to allow particular host to access internet via that non SD-WAN member, use policy routing in Fortigate firewall.

1. Enable Advanced Routing under Feature Visibility.

2. Create a policy routing to allow host to access internet through the outgoing interface (that non SD-WAN group member WAN) from your LAN source.

3. Create firewall rules to allow internet connection according to your source and destination.

4. Double check the host is constantly access internet through your specific WAN connection.