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    IPv6 Question

    Scheduled Pinned Locked Moved General pfSense Questions
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    • johnpozJ
      johnpoz LAYER 8 Global Moderator
      last edited by johnpoz

      @johnnybinator said in IPv6 Question:

      Native VLAN : 1
      VLAN : 1(u), 6(t), 7(t), 8(t), 10(t)
      11(t), 12(t), 13(t), 14(t), 20(t)

      So that looks like switch default vlan to me..

      Could you please just do the command I asked for on the interface connect to your device your saying is getting IPv6 address from your vlan 11.

      Or the above output on the port connected to your devicel. But your command above clearly shows there is an untagged vlan on that port, even though you say your trunked.. And that your trunk had no pvid.

      An intelligent man is sometimes forced to be drunk to spend time with his fools
      If you get confused: Listen to the Music Play
      Please don't Chat/PM me for help, unless mod related
      SG-4860 24.11 | Lab VMs 2.8, 24.11

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      • stephenw10S
        stephenw10 Netgate Administrator
        last edited by

        I blame Cisco! Using their own terminology for everything.... 🙄

        johnpozJ 1 Reply Last reply Reply Quote 0
        • johnpozJ
          johnpoz LAYER 8 Global Moderator @stephenw10
          last edited by

          @stephenw10 not sure if I would say that ;) But what I will say is I like this output from cli?

          VLAN : 1(u), 6(t), 7(t), 8(t), 10(t)
          11(t), 12(t), 13(t), 14(t), 20(t)
          30(t), 40(t), 41(t), 50(t), 60(t)
          70(t), 80(t), 82(t), 90(t), 100(t)
          110(t), 120(t), 121(t), 122(t), 130(t)
          140(t), 150(t), 151(t), 152(t), 160(t)
          170(t), 180(t), 190(t), 200(t), 210(t)
          300(t), 400(t), 500(t), 600(t), 700(t)
          800(t), 900(t), 999(t)

          Or did copy that from some gui and paste.. That is easy way to show what is allowed, that is tagged what is untagged.. But I am thinking that might be copy paste from a gui?

          I keep seeing these fs.com switches mentioned all over the place.. I should try and pick up one to play with..

          An intelligent man is sometimes forced to be drunk to spend time with his fools
          If you get confused: Listen to the Music Play
          Please don't Chat/PM me for help, unless mod related
          SG-4860 24.11 | Lab VMs 2.8, 24.11

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          • J
            johnnybinator @johnpoz
            last edited by

            @johnpoz s3900l.johnnyb.dev-1#show int config eth 3/20
            Name : to NFS Server
            Port Admin : Up
            Speed-duplex Capabilities : 1000full
            Nego-Speed-duplex : Auto
            Flow Control : Disabled
            VLAN Trunking : Disabled
            MAC Learning : Enabled
            Link-Status Trap : Disabled
            Media Type : None
            MTU : 9216
            Broadcast Threshold : Disabled
            Multicast Threshold : Disabled
            Unknown Unicast Threshold : Disabled
            Broadcast Block : Disabled
            Unknown Multicast Block : Disabled
            Unknown Unicast Block : Disabled
            Ingress Rate Limit : Disabled, 1000000 kbits/second
            Egress Rate Limit : Disabled, 1000000 kbits/second
            VLAN Mode : Trunk
            Vlan Ingress filtering : Enabled
            Native VLAN : 1
            GVRP Status : Disabled
            VLAN : 1(u), 6(t), 7(t), 8(t), 10(t)
            11(t), 12(t), 13(t), 14(t), 20(t)
            30(t), 40(t), 41(t), 50(t), 60(t)
            70(t), 80(t), 82(t), 90(t), 100(t)
            110(t), 120(t), 121(t), 122(t), 130(t)
            140(t), 150(t), 151(t), 152(t), 160(t)
            170(t), 180(t), 190(t), 200(t), 210(t)
            300(t), 400(t), 500(t), 600(t), 700(t)
            800(t), 900(t), 999(t)
            Forbidden VLAN :
            QinQ Status : Disabled
            QinQ Mode : Normal
            QinQ TPID : 8100 (Hex)

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            • stephenw10S
              stephenw10 Netgate Administrator
              last edited by stephenw10

              Hmm, well I wouldn't expect a client on that port to see anything on VLAN11. Even if the client is stripping the tags it would (should) be unable to reply.
              Something odd at play here.

              I guess wait for the results of testing the client connected to pfSense directly.

              Steve

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              • J
                johnnybinator @stephenw10
                last edited by

                @stephenw10 Will be later today or tomorrow, I will report back.

                johnpozJ 1 Reply Last reply Reply Quote 1
                • johnpozJ
                  johnpoz LAYER 8 Global Moderator @johnnybinator
                  last edited by

                  @johnnybinator So from that config, if untagged traffic when into port 3/20 is would come out 3/26 untagged.

                  I just find it impossible that would be seen by vlan 11 interface in pfsense..

                  Now it would be seen by an ix0 if that is what is connected to port 3/26.. But how would ix0.11 see it, why wouldn't ix0.6 or .7 or .10 see it?

                  An intelligent man is sometimes forced to be drunk to spend time with his fools
                  If you get confused: Listen to the Music Play
                  Please don't Chat/PM me for help, unless mod related
                  SG-4860 24.11 | Lab VMs 2.8, 24.11

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                  • J
                    johnnybinator @johnpoz
                    last edited by

                    @johnpoz I agree 100%. A Clue now that you've had me thinking more about the switch than the pfsense appliance: The switch itself is setup to have an IP (v4) on VLAN 11. but the way I added an IPv6 address put it on VLAN 1:

                    interface vlan 11
                    ip address 10.200.0.247 255.255.255.0

                    interface vlan 1
                    ipv6 address xxxx:xxxx:xxxx:xxxx::247/64

                    Perhaps I should put the ipv6 address on VLAN11.

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                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      Hmm, is that IPv6 address in any of the pfSense interface subnets?

                      Since pfSense doesn't have an interface on the untagged ix0 NIC I don't expect it to be.

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                      • J
                        johnnybinator @stephenw10
                        last edited by

                        @stephenw10 yes, that's the LAN /64. (VLAN11). I changed it so that the IPv6 address is on VLAN 11 instead of VLAN 1. I belive that is going to fix all this crap. Cannot verify until later.

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                        • johnpozJ
                          johnpoz LAYER 8 Global Moderator @johnnybinator
                          last edited by

                          @johnnybinator if your switch as an IPv6 on its vlan1 - maybe it handing out address via slaac? Since clearly untagged traffic coming into that port would be on vlan 1.

                          That seems logical to be honest.. While somehow pfsense seeing untagged traffic on its vlan 11 does not.

                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                          If you get confused: Listen to the Music Play
                          Please don't Chat/PM me for help, unless mod related
                          SG-4860 24.11 | Lab VMs 2.8, 24.11

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                          • J
                            johnnybinator @johnpoz
                            last edited by

                            @johnpoz Yeah. I was thinking the same. Odd thing is, the switch is not providing any IPv6 services. Somehow the pfsense box is doing the RA on VLAN11, but the switch is seeing that on VLAN 1, because I had accidentally put an IPv6 address on VLAN 1.

                            I put the IPv6 address on the switch via the GUI. It mentions nothing about the VLAN it is assigning the address to. I should have just done it via CLI.

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                            • stephenw10S
                              stephenw10 Netgate Administrator
                              last edited by

                              I would expect it to be on the switch native VLAN unless you specifically set it otherwise.

                              I still wouldn't expect it to allow traffic between that and VLAN 11 though.

                              This is a curious situation you have discovered! 🤔

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                              • johnpozJ
                                johnpoz LAYER 8 Global Moderator @stephenw10
                                last edited by

                                @stephenw10 said in IPv6 Question:

                                This is a curious situation you have discovered!

                                For sure... there has to be a piece of the puzzle we are missing. Since it makes zero sense that untagged traffic coming into 3/20 on his switch could somehow make it to pfsense tagged vlan 11. When clearly on his port connected to ix0 on pfsense also shows untagged as 1..

                                From his 2 switch port configs, the untagged or native vlan is clearly shown as vlan 1

                                Is there any other ports connected to this server.. That could somehow put untagged traffic on vlan 11 on the switch?

                                An intelligent man is sometimes forced to be drunk to spend time with his fools
                                If you get confused: Listen to the Music Play
                                Please don't Chat/PM me for help, unless mod related
                                SG-4860 24.11 | Lab VMs 2.8, 24.11

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                                • J
                                  johnnybinator @johnpoz
                                  last edited by

                                  @johnpoz Not that I'm aware of.

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                                  • stephenw10S
                                    stephenw10 Netgate Administrator
                                    last edited by

                                    It's the fact you have two way traffic that is most confusing. It's relatively common to see something incorrectly stripping tags. Some misbehaving switch or hardware offloading on a NIC for example. But that would only ever expose an untagged host to traffic that should be on a VLAN. It would not re-tag it the other way.
                                    You could try running packet captures on the interfaces in question to see if that traffic is in fact tagged or untagged as expected.

                                    Steve

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                                    • J
                                      johnnybinator @stephenw10
                                      last edited by

                                      @stephenw10 I will do some testing later. I cannot do it now.

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                                      • J
                                        johnnybinator @johnnybinator
                                        last edited by

                                        @johnnybinator Actually I was able to spin up a VM & everything now works as intended. I appreciate you sticking with me and helping to eliminate possibilities.

                                        johnpozJ 1 Reply Last reply Reply Quote 0
                                        • johnpozJ
                                          johnpoz LAYER 8 Global Moderator @johnnybinator
                                          last edited by

                                          @johnnybinator said in IPv6 Question:

                                          I was able to spin up a VM & everything now works as intended

                                          huh.. Dude you can not leave us hanging like that ;) There has to be a actual reason, so before the vm was tagging the traffic that you didn't think it should be tagging?

                                          An intelligent man is sometimes forced to be drunk to spend time with his fools
                                          If you get confused: Listen to the Music Play
                                          Please don't Chat/PM me for help, unless mod related
                                          SG-4860 24.11 | Lab VMs 2.8, 24.11

                                          J 1 Reply Last reply Reply Quote 0
                                          • J
                                            johnnybinator @johnpoz
                                            last edited by

                                            @johnpoz I guess I could put the switch back the way it was and see if that makes things go back to what was happening. This is at him and I'm working. Kind of a hectic week. When originally posted this, I thought someone was going to just say "yeah, just click here, etc..."

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