Trouble with dual wan setup

[Xaak]

This is what I'm trying to set up on an Fortigate 60F with firmware version 7.41:

Wan1 - multiple static IPs

subnet 192.168.2.0/24 on vlan switch internal on internal 1 port

Administrative Distance: 10 via static route

various inbound and outbound policies.

this contains public facing servers, domain infrastructure and other servers with static ips mostly for inbound.

various inbound and outbound policies.

This part is working fine.

What I've set up on wan 2

Wan2 - DHCP

Subnet 192.168.3.0/24 on vlan switch internal1 on internal2 port

Distance 10 via wan2 interface

inbound policy block all ports

outbound policy allow all ports (for now, will lock down once things are working)

This would be PCs, phones and other devices for internet access, with addresses assigned by domain dhcp service.

What's happening (while playing around with various settings) is that either wan2 isn't working for internet, or the internet on both interfaces is completely hosed.

Also required, bidirectional access between vlan switches, which I haven't tried to set up yet.

What am I doing wrong?

[Toshi_Esumi]

So, the two parallel default routes are ok. But the last line doesn't make sense.
"C 192.168.3.0/24 is directly connected, Internal wan2"

It is not bound to either "internal1" vlan switch you mentioned or "internal2" physical interface. What exactly did you configure on both "internal" and "wan2" interfaces?

Go to "config sys int" then "edit internal" -> "show", then "next"->"edit wan2"->"show".
you can get out with "end" at the end.

Toshi

[Xaak]

Ok, I deleted the previous internal1 because it was mentioned in a previous post that the name could be a problem.  Then I created a new virtual switch "internal wan2".  it is bound to the interface internal2.

[Toshi_Esumi]

Then that's fine. Now you need to have two policy routes from internal to wan1 and "internal wan2" to wan2. You can configure them in GUI. Should be under "Network" menu. How to create them should be relatively self-explanatory.

Toshi

[Toshi_Esumi]

You probably still need to have regular policies to allow traffic to both wan1 and wan2. But I think you already have them. But just missing policy routes.

[Xaak]

What policy routes am I missing?

[Toshi_Esumi · Accepted solution]

Have you configured like below already?
https://docs.fortinet.com/document/fortigate/7.4.1/administration-guide/144044/policy-routes

[Toshi_Esumi]

I forgot to tell but you have to enable Advanced Routing at Feature Visibility like below to see Policy Route menu.
https://community.fortinet.com/t5/FortiGate/Technical-Tip-Configuring-the-firewall-Policy-Routes/ta-...

[Xaak]

I figured out the advanced routing thing, set it up, and I'm all good now.  Both wans are being routed correctly now.  Thanks for your patience and help.

[Toshi_Esumi]

After you figured out, I just found a KB that seems to be for the same scenario. I should have found this at the beginning.
https://community.fortinet.com/t5/FortiGate/Technical-Tip-Policy-routes-with-multiple-ISP/ta-p/21094...

Tonight I've been working for our FGTs upgrade maintenance, so I searched these references inbetween cluster upgrades.