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Bruce_Morris's avatar
Bruce_Morris
Icon for Nimbostratus rankNimbostratus
Jun 19, 2019

Check TCP Port using IP Forward Virtual Server

Hi,

I want to use a IP Forwarding Virtual Server (no LB) but I want to still do a health check on the TCP port of the real destination server and take the VS out of service if the port is not responding. I only see the option for iRule on a IP Forwarding VS, health monitor selection options. Do I need to right an iRule for this and if so can someone show me an example?

Thanks,

Bruce

devops
iRules
LTM

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  • KeesvandenBos's avatar
    KeesvandenBos
    Icon for MVP rankMVP
    Jun 19, 2019

    Hi Bruce,

     

    Use a performance L4 virtual server for this. You can attach a pool with a health monitor to this type of virtual server.

     

    Cheers,

     

    Kees

    • Bruce_Morris's avatar
      Bruce_Morris
      Icon for Nimbostratus rankNimbostratus
      Jun 20, 2019

      Hi Kees,

       

      We can't change the destination IP address, so the VS would have to have the same IP address as the pool member (real server). In my experience, this does not work as the F5 is confused trying to do a health check to a IP that is also configured on it.

       

      Rgs,

      Bruce

       

      • mazou0014's avatar
        mazou0014
        Icon for Nimbostratus rankNimbostratus
        Oct 21, 2022

        Hi Bruce,

        Have you  had a response to your question?

        Rgs,