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    Setting the same tier for 2 gateways in a groups leads to connection loss

    Scheduled Pinned Locked Moved Routing and Multi WAN
    9 Posts 4 Posters 1.0k Views
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    • F Offline
      frooop
      last edited by

      Hello,
      I have a very strange problem and I'm all out of ideas on what might be wrong.

      The group setup I want looks like this:

      But this leads to the loss of connectivity for most users. It seems that already established connections are fine (e.g. streams continue to run), but new connections don't work. Everything works fine if I use Tier 1 and Tier 2 for the fiber gateways:

      I had this setup running before and than realized that I was doing double NAT. After I deactivated NAT on the pfsense this problem appears. So my guess is, that is has something to do with outbound nat and the loadbalancing. But I can't figure it out.

      My outbound NAT settings:

      I do need double NAT on the cable connection because I can't set a static route on the cheap modem.

      Any ideas? Do you need more information? I'm happy to provide anything that might help to figure this out.

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      • C Offline
        cmb
        last edited by

        Switch the NAT back to automatic, nothing you're doing there requires manual. You can't disable NAT because you can't add a route back on your cable modem.

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        • F Offline
          frooop
          last edited by

          I can disable it on the fiber channels and routing over either one works fine. Only the loadbalancing leads to problems.

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          • DerelictD Offline
            Derelict LAYER 8 Netgate
            last edited by

            Fine. Don't listen. You have no NAT for anything other than the cable modem. Not sure how anything is working except that.

            Good luck.

            Chattanooga, Tennessee, USA
            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
            Do Not Chat For Help! NO_WAN_EGRESS(TM)

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            • F Offline
              frooop
              last edited by

              I'm doing NAT on my fiber modems just not on the pfsense? Whats wrong with that?

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              • DerelictD Offline
                Derelict LAYER 8 Netgate
                last edited by

                That should be fine.  Does it work if you make 29 Tier 1 and 35 Tier 2?  If not I'd double check the routes on 29GW.

                Chattanooga, Tennessee, USA
                A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                Do Not Chat For Help! NO_WAN_EGRESS(TM)

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                • F Offline
                  frooop
                  last edited by

                  It also works fine if I set the P29 tier 1 and P35 tier 2. The problem only exists if then are both in the same tier.

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                  • H Offline
                    heper
                    last edited by

                    show the interface config all wan interfaces.

                    also if you don't nat on pfsense … have you added routes for your subnets_behind_pfsense to your modems ?

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                    • F Offline
                      frooop
                      last edited by

                      Hi,
                      the pfsense is the default gateway for all the subnets. All clients have that setting.

                      FiberP35 Gateway:

                      FiberP29 Gateway

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