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    PfSense VLAN + switch tagging trunk questions

    Scheduled Pinned Locked Moved General pfSense Questions
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    • JKnottJ
      JKnott @NogBadTheBad
      last edited by

      @NogBadTheBad

      All I can see is there's no VLAN traffic at whatever point you're looking at. Are the VLANs configured on that interface? You'll have to do something to generate traffic on the VLANs, such as pinging a non-existent address. This will cause multiple ARP broadcasts, which give you something to watch for.

      PfSense running on Qotom mini PC
      i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
      UniFi AC-Lite access point

      I haven't lost my mind. It's around here...somewhere...

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      • NogBadTheBadN
        NogBadTheBad
        last edited by

        The ID column shows traffic tagged vlan 4, 5 & 6.

        Andy

        1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

        JKnottJ 1 Reply Last reply Reply Quote 0
        • JKnottJ
          JKnott @NogBadTheBad
          last edited by

          @NogBadTheBad

          Sorry, my mistake. I haven't had my morning beer yet. ๐Ÿ˜‰

          So, you have VLANs enabled on that switch. Is that traffic coming from the switch where you're monitoring or is it being received by it? With managed switches, you can test at each end and then see what happens. So, if you see those tagged frames coming in, are they being sent out on the appropriate port? I see STUN packets. That implies VoIP or perhaps games? Where is that port you're monitoring in relation to your Internet connection. Hopefully, you're not trying to send VLAN frames out to the Internet.

          PfSense running on Qotom mini PC
          i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
          UniFi AC-Lite access point

          I haven't lost my mind. It's around here...somewhere...

          NogBadTheBadN 1 Reply Last reply Reply Quote 0
          • NogBadTheBadN
            NogBadTheBad @JKnott
            last edited by

            @JKnott

            Yup vlan 4 is my IOT vlan and vlan 6 is VOIP, the screen shot was just to show @jwhitewick01 what to set as a column rule.

            I did a capture on my pfsense parent interface.

            Andy

            1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

            JKnottJ 1 Reply Last reply Reply Quote 0
            • JKnottJ
              JKnott @NogBadTheBad
              last edited by

              @NogBadTheBad

              Then why is VLAN4 showing a STUN packet? That should be on VLAN6. Is that packet incoming to pfSense? Or outgoing? I also see a router advertisement on there. I assume that MAC address matches the pfSense port and you don't another router out on VLAN5. And that 172.16.6.1 is pfSense on VLAN6. There is at least some communication between 172.16.6.2 and .1 Is that .2 on the correct VLAN?

              PfSense running on Qotom mini PC
              i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
              UniFi AC-Lite access point

              I haven't lost my mind. It's around here...somewhere...

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              • NogBadTheBadN
                NogBadTheBad
                last edited by NogBadTheBad

                The STUN packet would appear to be from my Apple-TV.

                Screenshot 2020-02-20 at 17.39.08.png

                I don't normally resolve hostnames.

                The capture was done on my pfSense interface hence the RA.

                Ah they do use STUN.

                https://support.apple.com/en-us/HT202944

                Andy

                1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

                JKnottJ 1 Reply Last reply Reply Quote 0
                • JKnottJ
                  JKnott @NogBadTheBad
                  last edited by

                  @NogBadTheBad

                  Whoever it it, it's a STUN packet on a VLAN that's supposed to be IoT, You'd normally only see STUN with VoIP or some games. Also, the VLAN IDs on pfSense don't appear to match up with those on the switch. They must be the same everywhere. So, if you have IoT on VLAN4 in pfSense, then it must also be VLAN4 on the switch trunk port.

                  PfSense running on Qotom mini PC
                  i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                  UniFi AC-Lite access point

                  I haven't lost my mind. It's around here...somewhere...

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                  • NogBadTheBadN
                    NogBadTheBad
                    last edited by

                    The VLAN IDs are correct both end as I said previously "vlan 4 is my IOT vlan and vlan 6 is VOIP"

                    The STUN packets on vlan 4 are from 2 x Apple-TVs.

                    I'd see STUN packets on vlan 4 (IOT) and vlan 6 (VOIP).

                    Andy

                    1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

                    JKnottJ 1 Reply Last reply Reply Quote 0
                    • JKnottJ
                      JKnott @NogBadTheBad
                      last edited by

                      @NogBadTheBad said in PfSense VLAN + switch tagging trunk questions:

                      The VLAN IDs are correct both end

                      Then what's this?

                      Port 48 goes to my pfsense firewall

                      Untagged vlan 1 by default on port 48
                      Vlan 11 tagged on port 48
                      Vlan 12 tagged on port 48
                      Vlan 13 tagged on port 48

                      Those certainly don't look like 4, 5 & 6 to me.

                      PfSense running on Qotom mini PC
                      i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                      UniFi AC-Lite access point

                      I haven't lost my mind. It's around here...somewhere...

                      NogBadTheBadN 1 Reply Last reply Reply Quote 0
                      • NogBadTheBadN
                        NogBadTheBad @JKnott
                        last edited by

                        @JKnott said in PfSense VLAN + switch tagging trunk questions:

                        @NogBadTheBad said in PfSense VLAN + switch tagging trunk questions:

                        The VLAN IDs are correct both end

                        Then what's this?

                        Port 48 goes to my pfsense firewall

                        Untagged vlan 1 by default on port 48
                        Vlan 11 tagged on port 48
                        Vlan 12 tagged on port 48
                        Vlan 13 tagged on port 48

                        Those certainly don't look like 4, 5 & 6 to me.

                        LOL I'm not @jwhitewick01 !

                        Andy

                        1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

                        JKnottJ 1 Reply Last reply Reply Quote 0
                        • JKnottJ
                          JKnott @NogBadTheBad
                          last edited by

                          @NogBadTheBad

                          That's what happens when someone takes over anohter's thread.

                          Your trunk 4, for example, where is it supposed to go? Does it get there so that you can see those STUN packets arriving where they're supposed to? I don't know what you have and haven't seen much in useful info to help with whatever your problem is?

                          Scrolling back, the first post I see from you is in response to my suggestion that the OP use Wireshark. Why did you post a capture there? All you seem to be doing at that point is creating confusion.

                          Also, I don't know about others here, but I don't sit around watching a thread all day. I'm at my desk, with the forum open. I see when there's a new post in some thread and then read it, so I'm not paying close attention to what happened earlier. When you posted in the thread with only the capture and no other comment, what was I supposed to assume?

                          PfSense running on Qotom mini PC
                          i5 CPU, 4 GB memory, 32 GB SSD & 4 Intel Gb Ethernet ports.
                          UniFi AC-Lite access point

                          I haven't lost my mind. It's around here...somewhere...

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                          • NogBadTheBadN
                            NogBadTheBad
                            last edited by NogBadTheBad

                            To show the @jwhitewick01 how to set a column up in wireshark.

                            Andy

                            1 x Netgate SG-4860 - 3 x Linksys LGS308P - 1 x Aruba InstantOn AP22

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                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              Well that went off the rails ๐Ÿ˜‰

                              Let's wait to hear from jwhitewick01.

                              J 1 Reply Last reply Reply Quote 0
                              • J
                                jwhitewick01 @stephenw10
                                last edited by

                                @stephenw10 I will have to wait for this tuesday coming to go on site in order to test.

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