Routing Traffic on a FortiGate 80C

We have a FortiGate 80C currently in place with a static IP on WAN2.  I am setting up a second static IP on WAN1.  I need all traffic from the network to funnel through WAN2 with the exception of a single machine.  That single machine needs to be setup in the DMZ and have all traffic routed through WAN1. It is critical that current traffic from the remainder of the network continues through WAN2 for DNS reasons.

I've never worked with the FortiGate interface before and would appreciate a little help in getting this accomplished.\

Many thanks in advance.
urbanstylesAsked:
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bbaoIT ConsultantCommented:
is the IP on WAN1 a public IP too? or just another private IP and the subnet of WAN1 is for DMZ?
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urbanstylesAuthor Commented:
It's public.
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bbaoIT ConsultantCommented:
so basically all traffic from DMZ and that particular host to the Internet should go through the WAN1 interface, and all other traffic goes to the Internet through WAN2 by default. am i correct?
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urbanstylesAuthor Commented:
Correct.
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myramuCommented:
Hello,

You have to play around with route distance and priority (Same distance with different priority).

:For WAN2 traffic:
Destination IP/Mask : 0.0.0.0/0.0.0.0
Device: wan2
Gateway: y.y.y.y
Administrative distance: 10
Priority (Under advanced options): 1

:For WAN1 traffic:
Destination IP/Mask : 0.0.0.0/0.0.0.0
Device: wan1
Gateway: x.x.x.x
Administrative distance: 10
Priority (Under advanced options): 2

With the above configuration all traffic will go through WAN2. To force the specific traffic through wan1 create a policy based routing as below.

Protocol: Any
Incoming Interface: dmz
Source: 0.0.0.0/0.0.0.0
Destination: 0.0.0.0.0/0.0.0.0
Action: Forward Traffic
Outgoing Interface: wan1
Gateway: 0.0.0.0/0.0.0.0

Also define the firewall policy according to your need.

KB article for same type: http://kb.fortinet.com/kb/microsites/search.do?cmd=displayKC&docType=kc&externalId=FD31240

Good Luck!
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bbaoIT ConsultantCommented:
sorry for replying late.

basically THREE routes should be added to the FortiGate device.

Network Destination: 0.0.0.0 mask 0.0.0.0
Gateway: WAN1's default gateway
Interface: DMZ

Network Destination: 0.0.0.0 mask 0.0.0.0
Gateway: WAN2's default gateway
Interface: LAN

Network Source: 192.168.x.y mask 255.255.255.255
Network Destination: 0.0.0.0 mask 0.0.0.0
Gateway: WAN1's default gateway
Interface: LAN

where 192.168.x.y is the IP of that particular host
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urbanstylesAuthor Commented:
Thanks all... I decided to forgo the DMZ all together and just used a policy based route for the one host.  Seems to be working as desired.
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