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

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    • L
      lp.descamps @whosmatt
      last edited by

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

      arpresolve

      I do get this error too
      kernel arpresolve: can't allocate llinfo for 192.168.1.1 on igc0

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

      thanks

      stephenw10S 1 Reply Last reply Reply Quote 0
      • L
        lp.descamps @stephenw10
        last edited by

        @stephenw10

        i m pinging from a laptop to 1.1.1.1

        I ve now enable the gw monitoring to ping 8.8.8.8 instead of ISP gw. will how it goes

        the internet connection works again after the lease time of the arp expires and disappears from the table and I m back with 2 arp entries from the isp. the gw IP and wan interface

        I will try sysctl net.link.ether.inet.max_age=300 if the gw monitoring didn't do the trick. what is the default value for max_age in case I want to roll this back?

        thanks

        L 1 Reply Last reply Reply Quote 0
        • L
          lp.descamps @lp.descamps
          last edited by

          @lp-descamps
          lost internet again

          changed the sysctl net.link.ether.inet.max_age from 1200 to 300

          I didn't get kernel arpresolve: can't allocate llinfo for 192.168.1.1 on igc0 errors this time

          1 Reply Last reply Reply Quote 0
          • 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.

            1 Reply Last reply Reply Quote 0
            • 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	   
              
              1 Reply Last reply Reply Quote 0
              • 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

                  1 Reply Last reply Reply Quote 0
                  • 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?

                      1 Reply Last reply Reply Quote 0
                      • 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

                          1 Reply Last reply Reply Quote 0
                          • 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

                              1 Reply Last reply Reply Quote 0
                              • 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

                                  1 Reply Last reply Reply Quote 0
                                  • 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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