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    Direct connection says host is down

    Scheduled Pinned Locked Moved General pfSense Questions
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    • patient0P Offline
      patient0 @williamsilverstein
      last edited by

      @williamsilverstein both VMs have a WAN connection in PCI passthrough and OPT1 as a local network interface as passthrough? Are the 10.1.0.50/51 the IPs of the pfSense OPT1 interfaces, like are they part of the same local network, not WAN.

      And btw: when you write "Direct connection says host is down", what do you mean be that? Are the interfaces marked as down in pfSense Dashboard?

      Maybe a quick diagram (by hand even) would help?

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      • stephenw10S Online
        stephenw10 Netgate Administrator
        last edited by

        @williamsilverstein said in Direct connection says host is down:

        10.1.X.X for a local network.

        That's /16.

        I agree seeing /8 like that is a massive red flag for me. It would be very easy to get a subnet conflict with such a huge subnet on one interface. It's also almost always the result of an initial setup by someone who didn't really understand the available private subnets at the time. 😉

        But, yes, how are the VMs configured inside PVE?

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        • W Offline
          williamsilverstein @stephenw10
          last edited by williamsilverstein

          @stephenw10 The /8 was only connected to the other port. I put a switch in, but no difference.

          This is the original:

          20251013_234523.jpg

          I inserted a router, just in case I was wrong. No difference.

          20251014_092627.jpg

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          • stephenw10S Online
            stephenw10 Netgate Administrator
            last edited by

            So you are not using 10.x.x.x. on any other interfaces there?

            How are those ports configured in PVE? Are you passing them through to the pfSense VM(s)?

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            • W Offline
              williamsilverstein @stephenw10
              last edited by

              @stephenw10 There ports are not configured in the proxmox or the VM. The network device is passed through to the VM

              8adfad02-a459-44cb-898c-ec0166ae873b-image.png

              6c3207ee-27a8-4015-875f-12de67fd4224-image.png

              35b639ee-c6b1-4acd-ad4d-33dba389da92-image.png

              b038e1fb-9fec-4851-8bbf-4c5876250b40-image.png

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              • stephenw10S Online
                stephenw10 Netgate Administrator
                last edited by

                Ok, well those subnets are killing me! But they should work.

                So are you sure the ports you have linked are actually the ports you have passed through?

                Do you see it lose link when you unplug it?

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                • W Offline
                  williamsilverstein @stephenw10
                  last edited by

                  @stephenw10 Yes. I checked it before, and I just checked it again.

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                  • stephenw10S Online
                    stephenw10 Netgate Administrator
                    last edited by

                    Ok so how are you testing the connectivity?

                    'Host is down' implies it's ARPing for the target device and not seeing any replies. Can we assume neither host appears in the ARP table of the other?

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                    • W Offline
                      williamsilverstein @stephenw10
                      last edited by williamsilverstein

                      @stephenw10 You are correct. I plugged a windows laptop into the same switch and set an IP address of 10.1.2.50 (netmask 255.0.0.0) and it would not see either 10.1.1.50 or 10.1.0.50..

                      The other network does not show up in the arp list.

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                      • stephenw10S Online
                        stephenw10 Netgate Administrator
                        last edited by

                        Hmm. How are you actually testing? Just trying to ping the other IPs?

                        Try running a packet capture on that interface and see is anything is arriving at all. One both VMs.

                        It looks like it's not passing the NIC through correctly IMO. Some hardware off loading perhaps.

                        Are you connecting to the VMs using the LAN? The vtnet interface?

                        Can the VMs connect out using the other passed through NIC on the WAN?

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