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shane_caznet
shane_caznet
New Member
June 25, 2017
Question

Dead Gateway Detection in 5.4.4 on Fortigate 300D

  • June 25, 2017
  • 1 reply
  • 10032 views

Hi All

We have 2 WAN interfaces connected to our Fortigate 300D from 2 separate ISPs. We want to use ISP A at all times unless it is down, in which case we fail over to ISP B.

I've done this before using Dead Gateway Detection in Fortigate on previous versions of FortiOS. For example, we would set it to ping several hops up from the router and if it misses 20 packets shut down the interface which would update the route table and traffic would flow over the over WAN link.

This functionality seems to have dissapeared and been replaced with WAN Load Balancing. However, I don't want to load balance. Our link from ISP B should never be used at all unless ISP A is down. 

Surely they havent removed this functionality from the product? Has anyone else implemented something similar in 5.4.4?

    1 reply

    EMES
    EMES
    New Member
    June 25, 2017
    You can do it in the cli using Config system link-monitor The routes are configured as in 5.2 same metric and AD but set priority accordingly.
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