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

    how do i set pfsense to get ipv6 from isp

    Scheduled Pinned Locked Moved General pfSense Questions
    37 Posts 6 Posters 4.7k 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.
    • F
      firefox @stephenw10
      last edited by

      @stephenw10
      it is pppoe based

      After a conversation with my ISP ("CCC" in israel)
      They say I get an ipv6 address
      (Appears to them on the computer that I have an address)
      I just do not see it or something like that

      I did not touch or change anything in the ipv6 settings
      I always got an address automatically

      It could be that in version 2.4.5 it was different
      I do not know

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

        @firefox said in how do i set pfsense to get ipv6 from isp:

        They say I get an ipv6 address

        Are you getting a WAN address? Also, packet captures can do wonders when trying to solve problems. Try this:

        Shut down pfsense & unplug WAN cable
        Reboot pfsense and run Packet Capture on the WAN port, filtering on port 546 or 547
        Plug in WAN cable
        Post the capture file here

        BTW, it really can help if you mention your ISP, in case someone else here has experience with them.

        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...

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

          Enable 'Debug' in the dhcpb6 client settings. Check the dhcp logs after connecting.

          If you are pulling a prefix only you want see that unless you have an internal interface set to use it.

          Steve

          1 Reply Last reply Reply Quote 0
          • F
            firefox @JKnott
            last edited by

            @jknott
            I wrote that my ISP is CCC IN israel

            Are the settings that appear on the screenshots I uploaded correct?

            Maybe there
            I need to change something

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

              @firefox

              Sorry, I must have missed that. However, I see you gave a prefix delegation size of 64. If your ISP provides only a /64, then you can't pass IPv6 onto your LAN. If the ISP provides a different size then you use that number. For example my ISP provides a /56, which I can then split into 256 /64s on the LAN side.

              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
              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                Yeah, I pull a /56 here with link-local on WAN.

                You could pull a /64 and use it only on LAN. Make sure you are requesting the correct prefix size though. I have seen that fail if it's not exactly what the ISP is offering.

                1 Reply Last reply Reply Quote 0
                • F
                  firefox @JKnott
                  last edited by

                  @jknott
                  i try that again
                  And now I see the ipv6

                  why it says offline packetloss ?

                  ipv688.png

                  MikeV7896M 1 Reply Last reply Reply Quote 0
                  • MikeV7896M
                    MikeV7896 @firefox
                    last edited by MikeV7896

                    @firefox
                    Your ISP's router may not be responding to IPv6 ping requests. Maybe do a IPv6 traceroute (you might need to temporarily disable monitoring to do this, see below) and try using hop #3 or 4 as the monitoring IP address, or use something more global like Google DNS or something. Or you can change the gateway setting to disable the monitoring (System > Routing > [edit the IPv6 gateway] > check "Disable Gateway Monitoring"), though that might affect failover if you have dual WAN.

                    The S in IOT stands for Security

                    JKnottJ 1 Reply Last reply Reply Quote 0
                    • JKnottJ
                      JKnott @MikeV7896
                      last edited by

                      @virgiliomi

                      Or not use gateway monitoring. I don't use it, as it doesn't do much for most users.

                      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...

                      F 1 Reply Last reply Reply Quote 0
                      • F
                        firefox @JKnott
                        last edited by

                        @jknott

                        updating
                        I returned everything to the previous state
                        Ipv4 only
                        Because for some reason everything works slowly
                        I currently will not use ipv6 maybe I will try again in a few months

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

                          Yeah, that's typical of having partial v6 connectivity. Most operating systems will try to use it first if they think they have a v6 connection. If that is broken you have to wait for it to timeout before it tries v4 resulting in a pretty bad experience!

                          F 1 Reply Last reply Reply Quote 0
                          • F
                            firefox @stephenw10
                            last edited by

                            @stephenw10
                            Is there a way around this?
                            Any page loaded in a second or two
                            Loads after 10 or 20 seconds

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

                              You can probably configure the clients to use only IPv4 or use v4 by default.

                              Otherwise you need to either have fully functioning IPv6 or none.

                              Steve

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

                                While you can normally adjust a OS preference to ipv4 from v6. Some devices are more difficult than others, and can be difficult to actually disable completely.

                                If you are having issues with ipv6 - the simple solution is just not provide it at all.. Which is easy enough to disable at pfsense. Its much easier to do that way, then trying to configure each client to not use ipv6 or prefer v4 over, etc.

                                I don't provide any automatic IPv6 to any clients on any of my vlans. But I can configure clients on the vlans I have it enabled manually to use 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

                                F 1 Reply Last reply Reply Quote 1
                                • F
                                  firefox @johnpoz
                                  last edited by

                                  i disabled ipv6
                                  on my pc
                                  Now it works properly

                                  Thanks

                                  AKEGECA 1 Reply Last reply Reply Quote 0
                                  • AKEGECA
                                    AKEGEC @firefox
                                    last edited by

                                    @firefox said in how do i set pfsense to get ipv6 from isp:

                                    i disabled ipv6
                                    on my pc
                                    Now it works properly

                                    Thanks

                                    Smart move! Here you can see why:
                                    https://www.youtube.com/watch?v=Vt4Jl4t43ug

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

                                      @akegec

                                      I wouldn't put much stock in what that guy says. He doesn't understand IPv6 enough to make those claims. In fact some of what he said is nonsense.

                                      I made some comments on on that video last month.

                                      @ firefox

                                      As for IPv6, that is where the world is moving, so disabling IPv6 is not the fix. All you're doing is hiding the problem. If your ISP has a problem and they can't/won't fix it, there's always he.net.

                                      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...

                                      johnpozJ AKEGECA 2 Replies Last reply Reply Quote 0
                                      • stephenw10S
                                        stephenw10 Netgate Administrator
                                        last edited by

                                        Yes, a fully functional IPv6 connection is the way forward here.

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

                                          @jknott said in how do i set pfsense to get ipv6 from isp:

                                          In fact some of what he said is nonsense.

                                          haha - "some" its pretty much all nonsense, I wasn't going to sit through 30 minutes of nonsense.. so just skipped through it.. Every part I stopped on was just nonsense.

                                          Some of his comments as well - don't read books, don't read rfc's - watch videos? Come on!

                                          I would agree disable ipv6 is not a "fix" What it is, is a way for you to get up to speed with your understanding before you use what yes is the future.

                                          Until such time that you have a NEED there is no reason to have it enabled unless you actually understand how it works, how to secure it and how it functions to be able to troubleshoot it when things go wrong.

                                          Many users have it and don't even know, they might not be having any problems, they might not attribute issues they are having with IPv6, etc.

                                          Do you have a web server running if you don't need one, do you have ftp running when you don't need one.

                                          Security 101 says if your not using something - then it shouldn't be enabled. If you have no use for ipv6 then there is little reason for you to have it up and running. Unless your actively going to be using it, or experimenting with it.

                                          I would not say you should disable your IPv6 unless you're having issues. But if you are, there is nothing wrong with just turning it off until such time that you actually need it. Or are willing to spend the time needed to get up to speed and properly configure your network for its use.

                                          You can for sure bring up ipv6 in limited fashion to use and play without until such time your are comfortable and know enough to properly deploy it across your full network.

                                          What is nice about pfsense - it gives you the ability to do just that. Vs some soho router where it on or off, with limited ability to manage it or monitor it, etc.

                                          The mentioned hurricane electric is a very controlled way to bring ipv6 into your network. Limit its scope or not. With no need to have to deal with your isp lack of ipv6 support or inadequate type of deployment.

                                          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 0
                                          • JKnottJ
                                            JKnott @johnpoz
                                            last edited by

                                            @johnpoz said in how do i set pfsense to get ipv6 from isp:

                                            haha - "some" its pretty much all nonsense,

                                            That pretty much sums up his videos. I have tried to watch a couple of others but couldn't stomach them. I guess he's one of these "experts" who's read a couple of magazine articles and now knows all there is to know.

                                            It reminds me of a job I was on a few years ago, where the woman, who was the office manager, got annoyed because I plugged my computer into the switch with a CAT 5 patch cord. She was convinced it was going to affect her network, which we'd just cabled with CAT 6. She knew that because her husband (he's a veterinarian) had read some magazine articles. 😉

                                            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...

                                            F 1 Reply Last reply Reply Quote 0
                                            • First post
                                              Last post
                                            Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.