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    Proxmox: WAN NIC passthrough issue with 2.5G connection to fiber router

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    • stephenw10S
      stephenw10 Netgate Administrator @lp.descamps
      last edited by

      @lp-descamps said in Proxmox: WAN NIC passthrough issue with 2.5G connection to fiber router:

      but I don't use 192.168.1.0 network on pfsense?!?

      Might be a clue there though. Your WAN is DHCP I'm assuming? Perhaps something else is giving it a lease with that IP as the gateway.

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      • L
        lp.descamps @stephenw10
        last edited by

        @stephenw10
        there is a conflicting MAC

        when internet is working I can see this in arp table,

        WAN	100.68.0.1	42:9e:a4:3c:8e:2b		Expires in 1156 seconds	ethernet	  
        WAN	100.69.245.16	7c:83:34:bd:4b:21		Permanent	        ethernet
        

        when internet breaks, I get this

        WAN	100.68.0.64	42:9e:a4:3c:8e:2b		Expires in 1186 seconds	ethernet	  
        WAN	100.68.0.32	42:9e:a4:3c:8e:2b		Expires in 1186 seconds	ethernet	  
        WAN	100.68.0.65	42:9e:a4:3c:8e:2b		Expires in 1186 seconds	ethernet	  
        WAN	100.69.245.16	7c:83:34:bd:4b:21		Permanent	ethernet	  
        WAN	100.68.0.69	42:9e:a4:3c:8e:2b		Expires in 1186 seconds	ethernet	  
        WAN	100.68.0.31	42:9e:a4:3c:8e:2b		Expires in 1186 seconds	ethernet	   
        
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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Which of those, if any, is the WAN gateway? If it is it's a long way from the WAN IP or a huge subnet.

          That doesn't look like it's necessarily a conflict though. One MAC address could be associated with all those IPs.

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          • L
            lp.descamps @stephenw10
            last edited by

            @stephenw10
            the wan gw is 100.68.0.1 42:9e:a4:3c:8e:2b
            i can see it in the arp table before and after I lose internet
            but sometimes I get incomplete instead of MAC

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            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by

              Hmm, if it shows 'incomplete' then it's unable to get the gateway MAC which implies a layer2 failure.

              Where is the gateway in this case? Remote, at the ISP?

              It does seem like you might be hitting an issue with the NIC though.

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              • L
                lp.descamps @stephenw10
                last edited by

                @stephenw10
                i believe the gw is remotely at the isp.
                all I have at home is a fiber box that seems unmanaged
                is there a way to set static arp?
                how would I validate a hw nic failure?

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                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by

                  I've yet to see the i225 disconnect issues that are relatively well known but as I understand it they usually show as the NIC losing link which I don't think you're seeing?

                  I would run a pcap on it in the failed state and see if it's actually passing packets at all.

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                  • L
                    lp.descamps @stephenw10
                    last edited by

                    @stephenw10 that s one of the capture packetcapture-igc0-20241212183144.pcap

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                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      Hmm, so no incoming traffic at all.

                      Have you tried running it as not pass-through so pfSense just sees it as vtnet?

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                      • L
                        lp.descamps @stephenw10
                        last edited by

                        @stephenw10 i was non-passthrough and had issues hence moving to passthrough

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                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          What sort of issues? Similar connection failures?

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                          • L
                            lp.descamps @stephenw10
                            last edited by

                            @stephenw10 yes, loss of internet

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                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              Hmm, that does start to look like a NIC issue then if it fails the same way with the Linux driver.

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