You must configure a default route for the SD-WAN. The default gateways for each SD-WAN member interface do not need to be defined in the static routes table. FortiGate will decide what route or routes are preferred using Equal Cost Multi-Path (ECMP) based on distance and priority.
To create a static route for SD-WAN:
- Go to Network > Static Routes.
- Click Create New. The New Static Route page opens.
- Set Destination to Subnet, and leave the IP address and subnet mask as 0.0.0.0/0.0.0.0.
- In the Interface field select an SD-WAN zone.
- Ensure that Status is Enabled.
- Click OK.
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By default, a static route or the default route outgoing through an SD-WAN zone have an administrative distance of 1. To change the default distance in the CLI:config router static
edit <static-route-entry>
set distance <AD>
next
end
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