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    PPPoE with vlan

    Scheduled Pinned Locked Moved General pfSense Questions
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    • K
      Kristian_m @stephenw10
      last edited by

      @stephenw10 just did the pcap this is the data all the others are ARP https://imgur.com/a/OpboblW

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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        Is there any tagging on that ARP traffic? I assume that's coming from the modem?

        Do you know what the sagecom device is?

        Can you successfully get a PPPoE link there using something else? Link a Windows host directly for example?

        Are you sure this is actually PPPoE even? That ARP traffic is not what I'd expect to see there.

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        • K
          Kristian_m @stephenw10
          last edited by Kristian_m

          @stephenw10 sagecom is the company that owns the modem/old router. Would it be easier if you got the pcap file? How else could i get am PPPoE connection (with what device)

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          • stephenw10S
            stephenw10 Netgate Administrator
            last edited by

            Sure upload it here: https://nc.netgate.com/nextcloud/s/j9bwDZZMtLPFoEi

            What's the Huawei device shown in the pcap? Is that public IP it is ARPing from your gateway IP?

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            • K
              Kristian_m @stephenw10
              last edited by

              @stephenw10 I don't have any Huawei devices, so not sure but the file is uploaded

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              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                Great I have that.
                In your screenshot though you can see the Huawei device ARPing for public IPs. Is that your gateway?

                That traffic is arriving at em0 untagged. I presume it's coming from the ISP gateway.

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                • stephenw10S
                  stephenw10 Netgate Administrator
                  last edited by stephenw10

                  Actually looking at your IP here it clearly is your ISP.

                  I don't expect to see that on a PPPoE connection. It implies that the modem you have might not be bridging the PPPoE like you think it is.
                  Have you tried just setting the pfSense WAN to DHCP? Or in fact just setting the em0 interface to DHCP, hat you have assigned as the OPT interface.

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                  • K
                    Kristian_m @stephenw10
                    last edited by Kristian_m

                    @stephenw10 Was looking at the ip's where they are from, it's from the company that host most of the internet in Denmark i think (TDC) my ip is 94.147.46.16 I could try to set opt1 as DHCP when i get a chance at it

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                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by stephenw10

                      Exactly. Which means that traffic is somehow being sent to your modem and then passed to pfSense. And if it really is PPPoE only that implies the modem is still doing the PPPoE connection nand the VLAN tagging.

                      So I would try setting the em0 assigned interface to DHCP and see if it pulls an address.

                      Or if it's all static IPs just set your IP and gateway on that NIC.

                      And/or try to check what the modem is actually doing.

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                      • K
                        Kristian_m @stephenw10
                        last edited by

                        @stephenw10 What DHCP settings should o use, just the defaults?

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                        • stephenw10S
                          stephenw10 Netgate Administrator
                          last edited by

                          I would test that first. It still require a VLAN.

                          It seems unlikely your ISP would specify PPPoE and then not provide that but ARP traffic suggests something unexpected is happening.

                          Did we confirm that the old router still connects OK?

                          And you're unable to connect to it to confirm how it's configured?

                          Steve

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                          • K
                            Kristian_m @stephenw10
                            last edited by

                            @stephenw10 It's using DHCP with the ip of the old router/now modem, it took only 2 months finding that out. Thanks a lot, you really helped me, have a fantastic day.
                            Kristian.

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                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              Ah, nice!
                              Yeah it's very easy to get stuck down the wrong path with something like that. Sometimes you need to re-examine the problem.

                              Steve

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