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Gaet49
Gaet49
New Member
July 31, 2020
Question

Reverse path check fail

  • July 31, 2020
  • 2 replies
  • 4964 views

Hello,

 

I am having a routing problem on my FOrtigate.

I have created 2 DMZ zones on a single FortiGate interface.

When communicating from a different subnet from a DMZ interface, I encounter the following error message: Reverse Path Check.

 

08/07/2020: Problem solved I solved the problem, adding a static route for the specified subnet.

    2 replies

    abarushka
    Staff
    abarushka
    Staff
    August 26, 2022

    Hello,

     

    Please find the details by following the link below:

    https://community.fortinet.com/t5/FortiGate/Technical-Note-Details-about-FortiOS-RPF-Reverse-Path-Forwarding/ta-p/190100

    sw2090
    SuperUser
    sw2090
    SuperUser
    August 26, 2022

    "Reverse path check fail" simply means that the FGT did not find any matching route back to the destination address for handing the reply to your request back to you.

    You solved exactly that by adding the static route :)

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