Dual Wan destination routing

Question

I have a FG 100D running v5.2.9I have 2 WAN connections connected.Is it possible to route traffic to a certain IP address over the 2nd WAN link, and use the 1st WAN for all other traffic?I have tried but can't get this to work, do I just use static routes or policy routes?Also the traffic over the 2nd WAN needs to be source NAT'd Any help would be great

ede_pfau · Accepted Answer

Yes this is possible with static routes alone.

1- wan2 traffic

create a static route with destination '<remotehost_IP>/32', i.e. a host route. Point it to wan2.

2- internet traffic

create a static default route: '0.0.0.0/0', pointing to wan1.

Create the corresponding policies.

Traffic to the remotehost will follow the more specific route to wan2 while traffic to all other (unknown) destinations will be routed to wan1.

RedMt · Answer

It is definitely possible with static routes. In routing, the more specifically defined route always takes precedence. So if you set it up like this:

Set a default route (0.0.0.0/0) pointed over WAN2

Set specific routes (8.8.8.8/32 or 192.168.0.0/16 or whatever) over WAN1

It should do what you want. Because the more specific routes take precedence, any specifically defined route will go where you point them over WAN1. Anything not specifically defined will use the default route going over WAN2. Remember to set up whatever policies are necessary to allow the traffic to traverse whatever route you want it to use. Also, NAT is configured in the policy.

Hope this helps!

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