SD-WAN gateway question

[1ryan1]

When do you need to put a gateway for SDWAN interfaces? The default when adding a new interface member to the SD-WAN group is 0.0.0.0. If you have the default route set already in your routing table, do you still need to specify the gateway in SD-WAN interface?

[EricPan]

WAN Interface => Yes, Gateway IP Addrees that ISP provied.
[Static Route]
Destination：0.0.0.0/0.0.0.0
Interface：SDWAN

SDWAN VPN Interface => No need.
[Static Route]
Destination：Peer Site IP / Peer Site Mask
Interface：SDWAN VPN

[Kush_Patel]

Hello,

If an interface has static IP configuration then you need to provide the gateway member while adding that interface to SD-WAN zone. In case of DHCP IP configuration, DHCP server provides the gateway information so you can put 0.0.0.0 while adding the interface into SD-WAN zone.

https://docs.fortinet.com/document/fortigate/7.4.1/administration-guide/218559/configuring-the-sd-wa...

Regards.