How to create 1 Wan with 2 Lan Trunk

[AndreaDV]

Hi i've a Forti 60F,

i've to create manage 2 WAN for the customer.

The first WAN have an internal LAN where NAT is enable, and I have no problems with this network.

The second WAN have an unique cable but Is a trunk of 2 LAN, with 2 different gateway. 

In the lan side of the 60F i've to configure both lan and direct, with 2 different gateways, always to the same outgoing wan port 2. How is it resolved? By making internal VLANs?   

Thanks

[AndreaDV]

Wan 1 is natted and used in a dedicated lan of customer, wan 2 only to access to the two vlans. 

no redundancy or communication between networks is needed, they are two distinct networks, one serves wan1 while the other relies on two vlans

[sw2090]

BTW: if you create the two vlan interfaces on WAN2 with correct vid and each has an ip out of the corresponding vlan you don't need static routes because in this case there is connected routes coming with those interfaces. In that case only the other side would need to have a route back to you to be able to answer your requests.

[AndreaDV]

ok thanks, I'll try it as soon as possible, for now I've configured them like this

[sw2090]

yes that's what I said. Two vlan interfaces tied to WAN2 and both have an IP out of the corresponding VLAN.