Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    So close on IPv6 yet so far away - Can't get to internet over IPv6 despite everything seeming to be in place.

    Scheduled Pinned Locked Moved IPv6
    16 Posts 5 Posters 1.3k Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • JonathanLeeJ
      JonathanLee
      last edited by

      Have you enabled dhcp IPv6 and router advertising? Do your DNS server list contain some IPv6 servers to resolve with? Does your LAN have IPv6 also assigned to it?

      Make sure to upvote

      M 1 Reply Last reply Reply Quote 0
      • M
        MerikFyndhorn @JKnott
        last edited by

        @JKnott
        Changes made to WAN as per your recommendation
        965bea2f-ffe8-455c-adad-89c7f79a6b75-image.png

        I am still getting the same IPv6 address as before.

        Changes made to LAN as per your recommendation
        8f2929bf-ac52-4dab-8c14-40245f34bc45-image.png

        Eventually I do get a LAN IPv6 address to show, but as expected it is a address of external origin.
        Since I think the ISP is providing me the range?

        Is the take away from this? You can't run a different internal range for IPv6 than the external range or you can't route on PfSense? That seems wrong.... :(

        Worse yet is the results when I test the implementation.
        https://www.whatismyip.com/ give me my devices IPv6 not the external IPv6 of my firewall.

        Feels like I'm hanging my bum out on the internet for all to see rather than directing them to the firewall, but maybe I'm just been sensitive.

        JKnottJ 1 Reply Last reply Reply Quote 0
        • M
          MerikFyndhorn @JonathanLee
          last edited by

          @JonathanLee

          Yes indeed. The setting changes recommended by @JKnott did work, I'm just pouting about having the IPv6 range dictated inside my network, but I can get over that.

          DHCPv6
          0ba28542-38ea-479b-968a-9f7cd45de4ae-image.png

          Router Advertisement
          814551ca-8832-4b2b-90e3-548b0c9018f8-image.png

          DNS
          7e362625-9eb3-4126-981f-db1a47dd4d66-image.png

          Yes on LAN IPv6
          c1f038a1-8d10-4f6e-b7d3-e3fdca0d2e1e-image.png

          Also IPv6 is not turned off on the firewall
          13194c11-e06b-475c-a8f9-e6b144da1838-image.png

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

            @MerikFyndhorn

            Change the DHCPv6 delegation size to 56 or whatever your ISP provides. With 64 you'll only get a single /64. I just realized 64 was from back in the days when Rogers only offered a single /64. Now they provide a /56. I have corrected that link.

            Eventually I do get a LAN IPv6 address to show, but as expected it is a address of external origin.
            Since I think the ISP is providing me the range?

            Is the take away from this? You can't run a different internal range for IPv6 than the external range or you can't route on PfSense? That seems wrong.... :(

            Yes, you will get public IP addresses, which is what the Internet gods intended, before NAT messed things up.

            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...

            M 1 Reply Last reply Reply Quote 0
            • M
              MerikFyndhorn @JKnott
              last edited by

              @JKnott
              I guess I will have to adapt to the new way of things.:

              Thanks for all your help!

              GertjanG 1 Reply Last reply Reply Quote 0
              • GertjanG
                Gertjan @MerikFyndhorn
                last edited by

                @MerikFyndhorn

                Delete these two hardcoded DNS entries :

                ee617ff0-3d5a-4fe4-867f-2edfd548a0d9-image.png

                you don't need them.
                And the day your ISP decides to give you another prefix, you've broken DNS ...

                No "help me" PM's please. Use the forum, the community will thank you.
                Edit : and where are the logs ??

                M 1 Reply Last reply Reply Quote 0
                • M
                  MerikFyndhorn @Gertjan
                  last edited by

                  @Gertjan

                  So you are aware I am running windows Domain controllers at this site. I modified them as required for the Prefix provided by the earlier steps.

                  DNS is working just fine
                  b3ae29cc-b71f-4263-846f-dbdd8e8cfe06-image.png

                  Back here I left myself some IP's for use on static devices

                  b43d4eed-7768-4b21-8a0d-305c08acc3b7-image.png

                  And I'm using this IPv6 address as the gateway address on the statically assigned systems
                  677ade63-ac9c-4491-800c-2e71c42e1a99-image.png

                  1 Reply Last reply Reply Quote 0
                  • B
                    br8bruno
                    last edited by

                    This post is deleted!
                    1 Reply Last reply Reply Quote 0
                    • B
                      br8bruno
                      last edited by

                      This post is deleted!
                      GertjanG 1 Reply Last reply Reply Quote 0
                      • GertjanG
                        Gertjan @br8bruno
                        last edited by

                        @br8bruno

                        All screen look, fine to me.
                        IPv6 uses 'prefixes' for the LANs, your ISP has 00->ff = 256 available.
                        Can't see if that worked out fine, as you've hidden them ^^

                        Where I've difference :

                        b8e21092-3b9c-4352-a282-3cab2ab29c6f-image.png

                        where the third gateway is my OpenVPN server, so that's valid.
                        But my WAN has an Ipv4 and IPv6 mode DHCP.

                        I don't understand your LAN gateway ... neither the 3 ? WAN gateways.

                        You have DHCP for IPv4 and DHCP6 for IPv6 - so the first two are the correct ones.

                        Btw : just for the fun : don't ping 2001:4860:4860::8888 (and 8.8.8.8 and 8.8.4.4) as that's a DNS server IP. Not a ping answering machine.
                        The day 'they' decide not to answer to a ping because this costs them a lot of bandwidth and bandwith == expensive they will shut down the ping answer. Result : your networks go down.
                        Solution : ping a nearby ISP-based IPv4 and IPv6 upstream device that answers to ping.
                        You pay your ISP (right ?) : they are payed to answer to your traffic, your pings so your pfSense can "test" the connection.

                        Image the situation : Google 8.8.8.8 goes down. As a result, half the planet will lose it's Internet connection (as dpinger will detect the ping loss, and continuously restart the WAN interface).
                        That will be the day I will be ROFL all day long.
                        It happened : remember Facebook being down all day ?

                        No "help me" PM's please. Use the forum, the community will thank you.
                        Edit : and where are the logs ??

                        B 1 Reply Last reply Reply Quote 1
                        • B
                          br8bruno @Gertjan
                          last edited by

                          @Gertjan
                          Thank you for the reply.

                          In the end it was pfBlocker that was causing the problem. I didn't have to change any configuration, since they were not blocking anything. But I turned it off and on... now it all works.

                          I will try and find the correct pings to monitor. Not really sure, but I will as the ISP. Thanks.

                          GertjanG 1 Reply Last reply Reply Quote 0
                          • GertjanG
                            Gertjan @br8bruno
                            last edited by

                            @br8bruno said in So close on IPv6 yet so far away - Can't get to internet over IPv6 despite everything seeming to be in place.:

                            Not really sure, but I will as the ISP

                            They will ask you to execute a traceroute to, for example, 8.8.8.8
                            The second, third, maybe fourth IP listed is theirs - on of their equipment. Pick any of these, as long as they answer to ping.
                            Further on, you'll will find the main 'highway Internet core routers'.

                            No "help me" PM's please. Use the forum, the community will thank you.
                            Edit : and where are the logs ??

                            1 Reply Last reply Reply Quote 1
                            • First post
                              Last post
                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.