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    IPv6 WAN Track Interface not assigning addresses to LAN/Public LAN

    Scheduled Pinned Locked Moved IPv6
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    • JKnottJ
      JKnott @smitheo1
      last edited by

      @smitheo1 said in IPv6 WAN Track Interface not assigning addresses to LAN/Public LAN:

      This firewall software is so bugged

      Then how is it working so well for so many?

      NAT is not a hack.

      It was created to get around the address shortage, as there are nowhere near enough IPv4 addresses to go around. I am aware that it is also sometimes used to remap networks, to get around collisions caused by trying to merge 2 networks, where both are on the same RFC1918 address blocks. In short, it's again a hack to get around a problem caused by hack to get around the address shortage. If you can't get an IPv6 network operating properly, without NAT, then I would have to question your competence as an "engineer".

      I went nowhere in the land of link-local.

      Here is my gateway: fe80::217:10ff:fe9a:a199
      That sure looks like a link local address 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...

      S 2 Replies Last reply Reply Quote 1
      • S
        smitheo1
        last edited by

        Note the LAN Interface. 2000:xxxx:xxxx:xxxx::1 x can be whatever you need as long as it's not 2600:xxxx....because it is the Global IPv6 gateway. The firewall will return an error that it's being used and overlaps with 2600:xxxx

        f9159a55-2f7b-432a-a043-95e39bd5ca87-image.png

        I requested a /62, so I use 4 /64 networks on the private interfaces, but it's actually 2 /64's in use.

        1 Reply Last reply Reply Quote 0
        • S
          smitheo1 @JKnott
          last edited by

          @JKnott No it doesn't work for many. I don't teach certified individuals to call anything a hack and I'm glad that you don't have more than 20 years of experience now. Have a nice day, but you are just being a troll. I was here to help the gentleman at the beginning of this thread.

          JKnottJ 1 Reply Last reply Reply Quote 0
          • JKnottJ
            JKnott @smitheo1
            last edited by

            @smitheo1 said in IPv6 WAN Track Interface not assigning addresses to LAN/Public LAN:

            I was here to help the gentleman at the beginning of this thread.

            I don't recall him asking to use NAT. You were the first to mention it. He was having issues and some of what he said indicates he doesn't fully understand how certain things work, such as not realizing that a link local address is entirely valid as a gateway address, as I have to my ISP. On my local network, the gateway is pfSense with an address fe80::1:1. Yep, that's another link local address as provided by pfSense to devices on my LAN. While the OP may have issues, NAT is not the answer.

            As for myself, I have been working with networks, going back to 1978 (Air Canada reservation system on a proprietary Rockwell Collins network). I first learned about IPv4 in 1995, incidentally about the same time I first heard of IPv6. In addition to IP & Ethernet, I have also worked with SNA, token ring, DECnet and IPX. I also worked at IBM, providing 3rd level support, including on network issues. I have also completed network courses at a couple of local colleges and IBM, along with a lot of self study.

            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...

            1 Reply Last reply Reply Quote 0
            • M
              mrsunfire
              last edited by

              The biggest problem are dynamic prefixes. With that you can't assaign a static LAN interface. You also can't use NPt because pfSense can't handle with dynmic prefixes.

              Netgate 6100 MAX

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

                @mrsunfire said in IPv6 WAN Track Interface not assigning addresses to LAN/Public LAN:

                The biggest problem are dynamic prefixes. With that you can't assaign a static LAN interface.

                With DUID, the prefix should be essentially static. There's a setting "Do not allow PD/Address release" on the WAN page to prevent the prefix from being released.

                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...

                1 Reply Last reply Reply Quote 1
                • M
                  mrsunfire
                  last edited by

                  True, but if the connection is failing for more than 1 hour my ISP give me a new prefix whatever I do.

                  Netgate 6100 MAX

                  1 Reply Last reply Reply Quote 0
                  • S
                    smitheo1 @JKnott
                    last edited by

                    @JKnott

                    @JKnott said in IPv6 WAN Track Interface not assigning addresses to LAN/Public LAN:

                    Here is my gateway: fe80::217:10ff:fe9a:a199
                    That sure looks like a link local address to me.

                    That routes to nowhere. Quit kidding yourself. 🤣 🤣 🤣 🤣

                    JKnottJ 1 Reply Last reply Reply Quote 0
                    • JKnottJ
                      JKnott @smitheo1
                      last edited by JKnott

                      @smitheo1 said in IPv6 WAN Track Interface not assigning addresses to LAN/Public LAN:

                      @JKnott

                      @JKnott said in IPv6 WAN Track Interface not assigning addresses to LAN/Public LAN:

                      Here is my gateway: fe80::217:10ff:fe9a:a199
                      That sure looks like a link local address to me.

                      That routes to nowhere. Quit kidding yourself. 🤣 🤣 🤣 🤣

                      Here's what my computer, running Linux, shows:

                      ip -6 route show
                      2607:fea8:4c81:673::/64 dev eth0 proto kernel metric 256 expires 86389sec pref medium
                      fd48:1a37:2160::/64 dev eth0 proto kernel metric 256 expires 86389sec pref medium
                      fe80::/64 dev eth0 proto kernel metric 256 pref medium
                      default via fe80::1:1 dev eth0 proto ra metric 1024 expires 49sec hoplimit 64 pref medium

                      Notice that default route at the bottom? That's a link local address pointing to pfSense.

                      Now, on my pfSense box for the default route to my ISP:

                      /root: route -6 show default
                      route to: default
                      destination: default
                      mask: default
                      gateway: fe80::217:10ff:fe9a:a199%re0
                      fib: 0
                      interface: re0
                      flags: <UP,GATEWAY,DONE>
                      recvpipe sendpipe ssthresh rtt,msec mtu weight expire
                      0 0 0 0 1500 1 0

                      Take a look at the gateway. That's also a link local address, pointing to my ISP.

                      On IPv6, link local addresses are often used for routing, as shown in both examples above. With routing, all routing, all you need to know is how to get to the next hop. This could be a routeable address, link local address (IPv6 only) or in the case of a point to point link, the interface that connects to the next hop.

                      My pfSense box also has a routeable address, assigned by my ISP. However, it's a /128, which means it can't be used to communicate with anything, without being routed by pfSense.

                      Please stop proving you're clueless about IPv6.

                      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...

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

                        Let me get this right.. Your suggesting the OP use whatever they want - ie just pull some address block out of the air and use it locally.. And then nat that to the IPv6 wan address he gets..

                        That is your solution?

                        Sorry dude but that is not a solution, that is a HACK... And not what the OP was asking for at all, that is not teaching anyone anything..

                        Why did this thread get brought back from the dead in the first place - this is from oct 2018??

                        If someone is having a problem with ipv6 working on pfsense, then it should be correctly troubleshot to figure out why.. Not setup some nonsense ipv6 nat..

                        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

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

                          @johnpoz said in IPv6 WAN Track Interface not assigning addresses to LAN/Public LAN:

                          ie just pull some address block out of the air and use it locally.. And then nat that to the IPv6 wan address he gets..

                          I guess this "engineer" hasn't heard of Unique Local Addresses, which is what would be used for that sort of thing.

                          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...

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

                            ^ exactly! suggesting they use part of the global space 2000/3 is just not right... 2000 has not been allocated yet.. Doesn't mean you can just freaking use whatever space you want in it.

                            Concur if you were going to do such a hack, which I wouldn't suggest at all. Then yes ULA space would be the way to go, prob look into central assigned... have to lookup the rfc - its to prevent overlap how you can run into with rf1918 space..

                            If what you want is to use ula internal - then sure go for it, and do your Npt with that.. If he is having issues with his isp and getting prefix to work, etc. I would bet some serious money its the isp doing something wrong! ;)

                            The correct solution would be to figure out what is wrong, so maybe the isp can be informed, pfsense can be setup to allow for whatever is causing the issue, etc. etc.

                            But no some nat to whatever his isp gives him via some /64 on his wan and natting that is not the path.. Might be something you could do if hey need this up NOW... But this isn't production, the OP has zero actual "need" for ipv6.. Since really nobody actually does.. Unless there was some black site p0rn site he needed to get to that only is on ipv6 ;)

                            So figure out what the actual problem is and fix correctly..

                            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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                            • DerelictD
                              Derelict LAYER 8 Netgate
                              last edited by

                              So much bad information in this thread. I'm locking it. Start another one with whatever the current problem is. Thanks.

                              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)

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