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Gyom
Gyom
New Member
January 3, 2019
Question

2 ISPs, different LANS, redirecting traffic

  • January 3, 2019
  • 1 reply
  • 2545 views

Hello,

I have A fortigate 100D with FortiOS 5.6.3

Today I have

[ul]
  • a LAN NETWORK
  • a DMZ NETWORK
  • An unique ISP connected to WAN1 all traffic going through WAN1[/ul]

     

    I will have a second ISP soon which will be connected to WAN2

    I want to have the DMZ still going through WAN1

    And I want the LAN traffic going through WAN2 (the new ISP), and if the WAN2 link goes down, I want the traffic to go through WAN1 and going back to WAN2 when it goes up

     

    How is this possible ? What do I have to configure ?

     

     

    Thanks.

     

    • 1 reply

    lobstercreed
    lobstercreed
    New Member
    January 27, 2019

    Hi Gyom,

     

    Sorry to be so late to your post...probably not any help now, but this should be easily accomplished with policy routing or SD-WAN (either one I believe should work, but I have not done SD-WAN personally yet).

     

    Here's an article about basic redundant Internet configuration with failover (not SD-WAN), but you would need to supplement it with the policy route for either the LAN or the DMZ traffic.

    https://cookbook.fortinet.com/redundant-internet-basic-failover-56/

     

    - Daniel

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