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    How to get pfSense WAN to accept VLAN 0

    Scheduled Pinned Locked Moved General pfSense Questions
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    • M
      michaellacroix @Schwiing
      last edited by

      @schwiing

      I took a pcap a couple of weeks ago and the vlan 0 tag was there. I also have frontier in CT. Are you familiar with wireshark?

      1 Reply Last reply Reply Quote 0
      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        Yes, it would fail in 22.05 if they were tagging. You can run a packet capture on WAN for port 68 and then renew the dhcp lease. If you then view it at full detail you will see any tagging in the replies.

        Steve

        S 1 Reply Last reply Reply Quote 0
        • S
          Schwiing @stephenw10
          last edited by

          @stephenw10 @michaellacroix

          I'm familiar with Wireshark but have only run it once and that was a long time ago. I may need some help to figure that one out.

          I'm sure there's some good guides on the web though. Can report back once I figure it out

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          • M
            michaellacroix @Schwiing
            last edited by

            @schwiing

            Stephens idea is better to use pfsense built-in packet capture.

            S 1 Reply Last reply Reply Quote 0
            • S
              Schwiing @michaellacroix
              last edited by

              @michaellacroix @stephenw10

              https://imgur.com/a/XVWf81D

              Any other settings to change here?

              1 Reply Last reply Reply Quote 0
              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                I always enable promiscuous mode to be sure but that shouldn't be required here. I won't hurt either.

                S 1 Reply Last reply Reply Quote 0
                • S
                  Schwiing @stephenw10
                  last edited by

                  @stephenw10 Ok. I ran a packet capture and renewed WAN + relinquished my lease. Didn't get an IP back so I had to reboot the ONT, after which I got an IP back. Stopped the capture and got a .cap file. Here's what it says (masked my IP):

                  07:44:40.852150 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:44:41.370617 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:44:43.018973 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:44:54.521561 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:44:55.069179 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:44:56.103103 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:44:57.061862 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:44:59.010410 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:45:03.113370 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:45:03.131465 IP xx.xx.xx.1.67 > xx.xx.xx.xx.68: UDP, length 300
                  07:45:07.694198 IP 0.0.0.0.68 > 255.255.255.255.67: UDP, length 300
                  07:45:07.731435 IP xx.xx.xx.1.67 > xx.xx.xx.xx.68: UDP, length 300

                  Did I do it right? Can't really tell.

                  1 Reply Last reply Reply Quote 0
                  • stephenw10S
                    stephenw10 Netgate Administrator
                    last edited by

                    Yes, now change the detail level to full and hit 'view capture'. Scroll down to the replies and see if there are any tags.

                    S 1 Reply Last reply Reply Quote 0
                    • S
                      Schwiing @stephenw10
                      last edited by

                      @stephenw10 Ah, i didn't set it to full before - good catch.

                      Apologies for the dumb question but, what does the tag look like? What term should I search for?

                      1 Reply Last reply Reply Quote 0
                      • stephenw10S
                        stephenw10 Netgate Administrator
                        last edited by

                        Like I showed above, here.

                        Where is shows vlan 0, p 4, That's priority tagged as 4.

                        S 1 Reply Last reply Reply Quote 0
                        • S
                          Schwiing @stephenw10
                          last edited by

                          @stephenw10 I don't see the term "vlan" anywhere in that packet capture. My guess (if I did it correctly) is that it's not tagged.

                          1 Reply Last reply Reply Quote 1
                          • stephenw10S
                            stephenw10 Netgate Administrator
                            last edited by

                            Yeah, I'd be amazed if it was and still worked in 22.05. Good to check though. 👍

                            S C 2 Replies Last reply Reply Quote 1
                            • S
                              Schwiing @stephenw10
                              last edited by

                              @stephenw10 thanks for guiding me through it.

                              M 1 Reply Last reply Reply Quote 0
                              • M
                                michaellacroix @Schwiing
                                last edited by

                                @schwiing

                                I'll check my frontier 2gig service tonight and report back

                                S 1 Reply Last reply Reply Quote 0
                                • S
                                  Schwiing @michaellacroix
                                  last edited by

                                  @michaellacroix Sounds good.

                                  1 Reply Last reply Reply Quote 0
                                  • C
                                    cucu007 @stephenw10
                                    last edited by cucu007

                                    @stephenw10 Steve, do you need me to check something? I am one of those stuck under 22.5 and working, everything else did not work as you can see in all my other posts. :-)

                                    stephenw10S 1 Reply Last reply Reply Quote 0
                                    • c45p32C
                                      c45p32
                                      last edited by

                                      I can confirm as of this morning, College Station, TX still wants vlan0.

                                      11:34:03.435271 00:00:00:00:00:00 > 00:00:00:00:00:00, ethertype 802.1Q (0x8100), length 60: vlan 0, p 0, ethertype IPv4, (tos 0x0, ttl 246, id 54321, offset 0, flags [none], proto TCP (6), length 40)
                                      xxx.xxx.xxx.72.50650 > xx.xxx.xxx.xxx.3050: Flags [S], cksum 0x8ea1 (correct), seq 1903919664, win 65535, length 0

                                      1 Reply Last reply Reply Quote 0
                                      • stephenw10S
                                        stephenw10 Netgate Administrator @cucu007
                                        last edited by

                                        @cucu007 said in How to get pfSense WAN to accept VLAN 0:

                                        I am one of those stuck under 22.5 and working

                                        You are seeing it pull a lease in 22.05?

                                        If not it won't work there with VLAN0 without the netgraph script. You'll need to go to 2.7 or wait for 22.11 snaps (which should be any time now).

                                        Steve

                                        M stephenw10S 3 Replies Last reply Reply Quote 0
                                        • M
                                          michaellacroix @stephenw10
                                          last edited by

                                          @stephenw10
                                          I can confirm in my area frontier is still using vlan 0. Thanks

                                          1 Reply Last reply Reply Quote 0
                                          • M
                                            michaellacroix @stephenw10
                                            last edited by

                                            @stephenw10

                                            The updates look like their coming pretty fast. I'm surprised 22.11 dev isn't available yet

                                            C 1 Reply Last reply Reply Quote 0
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