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    IPv6 with track interface on LAN stopped working

    Scheduled Pinned Locked Moved IPv6
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    • DudleydoggD
      Dudleydogg
      last edited by

      I setup Syslog and can filter for dhcpd6, so I caught this in the Log when saving WAN/LAN forcing dhcpd6 to update:

      0_1536243738300_ae793fc9-2b5c-490a-bcb5-23f9795f6de6-image.png reset a timer on vmx0
      transmit failed: Can't assign requested address
      set IA_PD
      set IA_PD prefix
      set option request (len 4)
      set elapsed time (len 2)
      set identity association
      set client ID (len 18)
      Sending Solicit
      reset a timer on vmx0
      transmit failed: Can't assign requested address
      set IA_PD
      set IA_PD prefix
      set option request (len 4)
      set elapsed time (len 2)
      set identity association
      set client ID (len 18)
      Sending Solicit
      reset a timer on vmx0
      transmit failed: Can't assign requested address

      DerelictD 1 Reply Last reply Reply Quote 0
      • D
        dxmaster
        last edited by

        @Derelict you live in Vegas so I’m guessing you have Cox as well. Any tips to get ipv6 working? I just redid my install from scratch, set lan to track, nothing checked on WAN. Still only getting link-local ipv6 address. It’s driving me crazy!

        1 Reply Last reply Reply Quote 0
        • DerelictD
          Derelict LAYER 8 Netgate
          last edited by

          This is what I use with Cox and a Netgear CM600:

          0_1536248745484_Screen Shot 2018-09-06 at 8.44.46 AM.png

          Chattanooga, Tennessee, USA
          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
          Do Not Chat For Help! NO_WAN_EGRESS(TM)

          D 1 Reply Last reply Reply Quote 0
          • D
            dxmaster
            last edited by

            so these are the logs from dhcp, any hints from them as to what is going on? I even tried swapping interfaces just now and still no good.

            0_1536252050313_Capture.PNG

            1 Reply Last reply Reply Quote 0
            • DerelictD
              Derelict LAYER 8 Netgate
              last edited by

              Anything else ever happen? It's not uncommon to take a few solicits before getting a response. Not sure why they delay.

              With Cable it is strange because you are often actually talking to your modem, which is obtaining the address information from upstream via whatever method (I have never seen a Cable ISP any further up than the modem itself so it's a "black box" to me). Have you verified with Cox that your modem will work with IPv6 and that they don't have to enable something?

              Chattanooga, Tennessee, USA
              A comprehensive network diagram is worth 10,000 words and 15 conference calls.
              DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
              Do Not Chat For Help! NO_WAN_EGRESS(TM)

              1 Reply Last reply Reply Quote 0
              • D
                dxmaster
                last edited by

                @derelict Yeah, if I go direct into my laptop from the modem I get an IPv6 address right away. I just switched back over to my edgerouter and boom, just like that it has an IPv6 address.

                1 Reply Last reply Reply Quote 0
                • D
                  dxmaster
                  last edited by

                  Ok, so if I plug the edgerouter into the modem then feed pfsense from the edgerouter it gets an ipv6 address but not direct to the modem. What the heck?!

                  1 Reply Last reply Reply Quote 0
                  • DerelictD
                    Derelict LAYER 8 Netgate
                    last edited by

                    All I can say is those settings work. if pfSense is sending the solicit and getting no reply, not sure where to have you go except upstream to them. Maybe try the unplug WAN, reboot modem, let it sync, reconnect WAN dance.

                    Maybe edit/save a new DUID in System > Advanced, Networking. Resetting the DUID might kick the DHCP server into gear but just a guess.

                    The DUID should be saved in the config anyway. I use DUID-LLT. You can manually get a new time in seconds with date "+%s"

                    Chattanooga, Tennessee, USA
                    A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                    DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                    Do Not Chat For Help! NO_WAN_EGRESS(TM)

                    luckman212L 1 Reply Last reply Reply Quote 0
                    • D
                      dxmaster
                      last edited by

                      How can I view the actual DUID to confirm that its changing?

                      1 Reply Last reply Reply Quote 0
                      • DerelictD
                        Derelict LAYER 8 Netgate
                        last edited by

                        Should be in the dhcp6c logs

                        Chattanooga, Tennessee, USA
                        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                        Do Not Chat For Help! NO_WAN_EGRESS(TM)

                        1 Reply Last reply Reply Quote 0
                        • DerelictD
                          Derelict LAYER 8 Netgate @Dudleydogg
                          last edited by

                          @dudleydogg That looks like the client cannot transmit on that interface at all.

                          Can't assign requested address likely means that the WAN interface addressing is pretty grossly misconfigured. Or maybe the default gateway is not something on the WAN subnet, or something else wrong with sending traffic out WAN. Hard to say based on that.

                          Chattanooga, Tennessee, USA
                          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                          Do Not Chat For Help! NO_WAN_EGRESS(TM)

                          DudleydoggD 2 Replies Last reply Reply Quote 0
                          • DerelictD
                            Derelict LAYER 8 Netgate
                            last edited by

                            The DHCPv6 server should probably be enabled and RA on the tracked interface should probably be set to "Assisted" but that will not prevent the DHCPv6 on WAN and the prefix delegation from occurring. Though I seem to remember that there was a bug preventing it from attempting to get a PD if there were no interfaces set to track. I believe that has been fixed though.

                            Chattanooga, Tennessee, USA
                            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                            Do Not Chat For Help! NO_WAN_EGRESS(TM)

                            1 Reply Last reply Reply Quote 0
                            • DudleydoggD
                              Dudleydogg @Derelict
                              last edited by

                              @derelict I have though as much and wonder if their is a way to reset WAN back to default like their is some request for an address that is stuck. Only ipv6 I can make work is HE tunnel. Previously native from Spectrum (TWC) was working perfectly.

                              1 Reply Last reply Reply Quote 0
                              • DerelictD
                                Derelict LAYER 8 Netgate
                                last edited by

                                I'd call Cox. Or tweet (DM) them. They seem to respond there with some knowledge.

                                You might just have to let stuff expire (stop testing with laptops and routers) until they give you another lease.

                                Chattanooga, Tennessee, USA
                                A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                1 Reply Last reply Reply Quote 0
                                • DerelictD
                                  Derelict LAYER 8 Netgate
                                  last edited by

                                  @dxmaster said in IPv6 with track interface on LAN stopped working:

                                  I just redid my install from scratch, set lan to track, nothing checked on WAN.

                                  Just looking back. What do you mean nothing checked? WAN needs to be set to DHCPv6.

                                  Chattanooga, Tennessee, USA
                                  A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                  DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                  Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                  1 Reply Last reply Reply Quote 0
                                  • D
                                    dxmaster
                                    last edited by

                                    Ok, so it has been a few hours and USPS dropped off a shiny new 4 port intel nic that I threw in a spare computer and tossed a 64GB SSD in and all is well in the world. I have a feeling its something related to my unRaid servers NIC cards or something with the virtualization of pfSense within unRaid. I might toss this nic in my unRaid box and see if I can get it working with the new nic but either way, im up and running just fine on a different computer.

                                    1 Reply Last reply Reply Quote 0
                                    • DudleydoggD
                                      Dudleydogg
                                      last edited by

                                      no responses were received
                                      reset a timer on vmx0
                                      send request to ff02::1:2%vmx0
                                      set IA_PD
                                      set IA_PD prefix
                                      set option request (len 4)
                                      set elapsed time (len 2)
                                      set identity association
                                      set IA address
                                      set server ID (len 14)
                                      set client ID (len 14)
                                      Sending Request
                                      So my router is requesting and I see a PD and ipv6 ip in the Logs but the last part of the log file does state no responses were received. Is their anything that could be preventing this request to go out my WAN to the ISP?

                                      and the send request does not seem to be a routable address is local link ff02

                                      1 Reply Last reply Reply Quote 0
                                      • DerelictD
                                        Derelict LAYER 8 Netgate
                                        last edited by Derelict

                                        That is not link-local. It is multicast to ff02::1:2 (All_DHCP_Relay_Agents_and_Servers).

                                        https://en.wikipedia.org/wiki/DHCPv6

                                        Your problem is there is no response.

                                        In order to verify the packet is actually going out on the wire, you will have to capture on the wire itself.

                                        Been doing this a while and I have never seen a transmission out a port in a pcap that was not actually sent out on the wire.

                                        Chattanooga, Tennessee, USA
                                        A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                        DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                        Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                        1 Reply Last reply Reply Quote 0
                                        • DudleydoggD
                                          Dudleydogg @Derelict
                                          last edited by Dudleydogg

                                          @derelict Misconfigured on my Part or the ISP? I have installed pfsense from scratch and configured only WAN And LAN to test or verify its nothing in my configuration So clean install I still hang on WAN at boot, and no ipv6 is assigned. Only hardware is TWC modem, but its bridged. are their settings even in Bridge mode I need to be aware of?
                                          How else can I configure or Wipe the WAN settings back to Default?

                                          1 Reply Last reply Reply Quote 0
                                          • DerelictD
                                            Derelict LAYER 8 Netgate
                                            last edited by Derelict

                                            You can't. They can either provide the information you need to configure the WAN interface or I guess it doesn't work.

                                            Not possible for me to try it for you because I don't have one of those connections available to test on.

                                            Not really sure what to recommend that hasn't already been said. You have never posted any logs that actually showed any kind of response to the DHCPv6 solicits.

                                            Chattanooga, Tennessee, USA
                                            A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                                            DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                                            Do Not Chat For Help! NO_WAN_EGRESS(TM)

                                            DudleydoggD 2 Replies Last reply Reply Quote 0
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