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    IPv6 doubts

    Scheduled Pinned Locked Moved IPv6
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    • C Offline
      cmpsalvestrini
      last edited by cmpsalvestrini

      gets off the phone with ISP <groan> WAN IPv6 address is distributed by SLAAC ... </groan>

      I suppose I will have to set up some kind of bridge... I don't see how am I going to get my IPv6 working on the LAN side of my pfSense now. mutters darkly

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

        What do you get on the WAN if you set it to SLAAC? (I would set it to SLAAC, apply, then shut down pfSense, reboot your modem until it comes back green, then start pfSense).

        After that is the /56 routed to you? They might be doing something there. I have never seen it but they might.

        What WAN address you get really doesn't matter. It is the /56 that matters.

        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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        • johnpozJ Offline
          johnpoz LAYER 8 Global Moderator
          last edited by

          you can not hand out /56 via slaac.. So how is they said they gave you a /56?

          You can assign the router an IPv6 with slaac, and then delegate the /56 with dhcp prefix delegation.

          Simple solution to make all your pain go away would be just get a tunnel from HE.. You can get a /48 from them.. Take you all of a few minutes to get it up and running.

          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 25.07.1 | Lab VMs 2.8.1, 25.07.1

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          • DerelictD Offline
            Derelict LAYER 8 Netgate
            last edited by Derelict

            I know you can't. But if that is what they are saying that is what should be attempted. Who knows what they are doing.

            When it doesn't work, he can go back to them and say "What about the /56?" "How is that routed to me?" Because he's certainly not going to get a /56 prefix using SLAAC, as broken as that would be.

            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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            • JKnottJ Offline
              JKnott @cmpsalvestrini
              last edited by

              @cmpsalvestrini said in IPv6 doubts:

              gets off the phone with ISP <groan> WAN IPv6 address is distributed by SLAAC ... </groan>

              I suppose I will have to set up some kind of bridge... I don't see how am I going to get my IPv6 working on the LAN side of my pfSense now. mutters darkly

              Regardless of how you get your WAN address, they have to route your /56 prefix to you. This is normally done via the link local address, but can be done with whatever they assign to your WAN interface.

              On my network, I have a /56 prefix, but the WAN address is in a different one. However, my default gateway is a link local address.

              default fe80::217:10ff:fe9 UGS re0

              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...

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              • C Offline
                cmpsalvestrini
                last edited by cmpsalvestrini

                blinks... Epiphany... So I use the ISP's modem link local address as gateway on my WAN interface and everything will work? And here I was setting up GUA as my gateway... forehead meets hand

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                • johnpozJ Offline
                  johnpoz LAYER 8 Global Moderator
                  last edited by

                  Just let your wan get its IP via slaac... Then try and setup a IP on one of your lan side interfaces with the /56 they gave you.

                  If its routed to you that will work.

                  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 25.07.1 | Lab VMs 2.8.1, 25.07.1

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                  • C Offline
                    cmpsalvestrini
                    last edited by

                    I will certainly do that. Thanks for the enlightenment Insert appropriate illuminated face here

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                    • DerelictD Offline
                      Derelict LAYER 8 Netgate
                      last edited by

                      Just ping6 an address on the /56 from the outside and pcap on WAN for it. No need to set anything up. If you don't see anything pcap on the interface for everything IPv6 and see if you see Neighbor Discoveries for it.

                      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
                      • C Offline
                        cmpsalvestrini
                        last edited by

                        So let's see if this is correct:

                        a) Added the link-local address for the ISP-provided router as gateway for the LAN network (the ISP's router page gave me that information, as per screenshot:

                        0_1527700801156_2018-05-30.png

                        WAN is as is (static 2001:818:d9d9:ba00::1/64, gateway 2001:818:d9d9:ba00::1)

                        LAN side is configured as follows:

                        0_1527701147940_2018-05-30 (1).png

                        This should in theory give me IPv6 Internet accessibility in my LAN side.

                        I hope I understood correctly what was suggested here. Feel free to yell at me if I haven't done something well.

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                        • DerelictD Offline
                          Derelict LAYER 8 Netgate
                          last edited by

                          No.

                          Set the WAN to get an address using SLAAC and see what it does.

                          Derelict Netgate about 3 hours ago

                          What do you get on the WAN if you set it to SLAAC? (I would set it to SLAAC, apply, then shut down pfSense, reboot your modem until it comes back green, then start pfSense).

                          See what WAN shows in Status > Interfaces after that.

                          Forget about the /56 for the moment. Just do what the ISP told you to do. When you do that and it doesn't work (which is the highly-likely outcome) you can go back and say, "I did what you told me to do and it didn't work."

                          That is the only way to deal with ISP tech support.

                          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
                          • C Offline
                            cmpsalvestrini
                            last edited by cmpsalvestrini

                            Right. I'm connected to the WAN via SLAAC on the pfSense WAN port. Let's see now... I have IPv6 address, i have a gateway. Screenshot:

                            0_1527704840995_2018-05-30 (2).png

                            All fine and dandy. I get good ping6 too:

                            PING6(56=40+8+8 bytes) 2001:818:d9d9:ba00:6eb3:11ff:fe1b:5402 --> 2a00:1450:4003:806::2004
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=0 hlim=57 time=11.665 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=1 hlim=57 time=11.528 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=2 hlim=57 time=11.364 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=3 hlim=57 time=11.576 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=4 hlim=57 time=11.548 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=5 hlim=57 time=11.471 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=6 hlim=57 time=11.333 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=7 hlim=57 time=11.477 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=8 hlim=57 time=11.443 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=9 hlim=57 time=11.334 ms
                            16 bytes from 2a00:1450:4003:806::2004, icmp_seq=10 hlim=57 time=11.288 ms
                            ^C
                            --- www.google.com ping6 statistics ---
                            11 packets transmitted, 11 packets received, 0.0% packet loss
                            round-trip min/avg/max/std-dev = 11.288/11.457/11.665/0.113 ms

                            Now as to the LAN side... Plotz. A Windows client reports no IPv6 gateway at all, so I get a juicy No network access.

                            EDIT: Doh. I had not enabled RA... -.- Still, the Windows client reports "No Internet access".

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                            • johnpozJ Offline
                              johnpoz LAYER 8 Global Moderator
                              last edited by

                              So go back to your idiot ISP and say ok Im slaac and got xyz for IP... How do i use the /56 you told me I have behind my router..

                              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 25.07.1 | Lab VMs 2.8.1, 25.07.1

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                              • DerelictD Offline
                                Derelict LAYER 8 Netgate
                                last edited by

                                OK, now you have to determine if traffic for 2001:818:d9d9:ba00::/56 is arriving on your interface. Set up a packet capture like this and start it.

                                The try to do stuff with it like ping6 2001:818:d9d9:ba01::1/56 from the outside, telnet to it from the outside, etc.

                                Then stop the capture and see what is there.

                                If you need someone to ping6 it from the outside holler.

                                Hmm. This is interesting:

                                0_1527707707481_Screen Shot 2018-05-30 at 12.14.34 PM.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)

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