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IPv6 Native with Telstra, Australia

Scheduled Pinned Locked Moved IPv6
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  • J
    JKnott @Bigmaccius
    last edited by Mar 3, 2019, 4:41 PM

    @bigmaccius said in IPv6 Native with Telstra, Australia:

    they will either be forwarding them to your WAN's fe80:: (link-local) address or may be sending them to the pfSense WAN's publicly routable (i.e. 2001:8003:f00...) address - it could be either, I'm not exactly sure which is more common

    Both resolve to the same MAC address, which is what is used to send frames over Ethernet or other layer 2. All a router needs to know is which interface to use. In fact, on point to point links there's not even a need for any IP address. Using either IPv6 address can be used to obtain the MAC address for forwarding, but my understanding is that it's usually the link local. As you mentioned, it's always going to be available.

    Incidentally, I've been through this sort of thing, trying to explain a problem to my ISP. While I get a prefix on my LAN, it's not usable, as there is no correct route back to my network. If I, for example ping www.yahoo.com, I can see the pings go out, but nothing comes back. However, pinging from the firewall, rather than a computer behind it works. One guy Iwas speaking to insisted that proved IPv6 was working properly, although in fact it wasn't. It's real "fun" trying to explain to the support people how IPv6 actually works.

    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...

    B 1 Reply Last reply Mar 3, 2019, 11:40 PM Reply Quote 0
    • B
      biggsy @JKnott
      last edited by Mar 3, 2019, 11:40 PM

      Just wanted to say thanks to all involved with finding a solution to this. Excellent work.

      It looks like I'll be getting NBN/HFC some time between April and June (this year, they say).

      Having this IPv6 configuration information in advance will be a huge help. Unless Telstra change their end, of course.

      L 1 Reply Last reply Mar 3, 2019, 11:43 PM Reply Quote 0
      • L
        Larrikin @biggsy
        last edited by Mar 3, 2019, 11:43 PM

        @biggsy said in IPv6 Native with Telstra, Australia:

        Having this IPv6 configuration information in advance will be a huge help. Unless Telstra change their end, of course.

        We will keep up with them, so no need to worry. I've already been in contact with my Telstra contact this morning. All good.

        1 Reply Last reply Reply Quote 0
        • L
          Larrikin @Bigmaccius
          last edited by Mar 3, 2019, 11:44 PM

          @bigmaccius @Derelict

          Check out how much traffic is flowing on IPv6 since I switched it on:

          0_1551656651277_Screen Shot 2019-03-04 at 10.42.26 am.png

          R 1 Reply Last reply Mar 4, 2019, 6:30 AM Reply Quote 0
          • R
            randomaustralian @Larrikin
            last edited by Mar 4, 2019, 6:30 AM

            @larrikin

            not so much here. but i am only a single user
            0_1551681011584_7f250979-809d-43b2-a694-4d0c3c6d5db7-image.png

            2 x UP board, 4GB RAM + 64 GB eMMC w/ vesa case (http://up-shop.org/)
            1x UP^2 Pentium Quad Core, 8GB RAM, 128GB eMMC w/ vesa case (pfSense)
            1x UP Core Plus E3950, 8GB RAM, 64GB EMMC+ Net Plus i210-IT
            1x Dell Power Edge R510
            2x Dell Power Edge R610

            1 Reply Last reply Reply Quote 0
            • R
              randomaustralian @JKnott
              last edited by randomaustralian Mar 4, 2019, 6:42 AM Mar 4, 2019, 6:36 AM

              @jknott and @Bigmaccius

              "Telstra are using local local link addresses....."

              Thanks for the clarification. this is my first successful experience with IPv6 so its been an interesting learning curve. Always more stuff to learn.

              and by "weird settings about allowing local only communication"....

              i must have gotten confused with one of the other forums i was reading. something about forcing ipv6 to allow local only communication to work on telstra.

              2 x UP board, 4GB RAM + 64 GB eMMC w/ vesa case (http://up-shop.org/)
              1x UP^2 Pentium Quad Core, 8GB RAM, 128GB eMMC w/ vesa case (pfSense)
              1x UP Core Plus E3950, 8GB RAM, 64GB EMMC+ Net Plus i210-IT
              1x Dell Power Edge R510
              2x Dell Power Edge R610

              1 Reply Last reply Reply Quote 0
              • L
                Larrikin
                last edited by Larrikin Mar 4, 2019, 2:00 PM Mar 4, 2019, 12:33 PM

                @randomaustralian @Bigmaccius @Derelict

                I notice that with IPv6 enabled, that my download and upload speeds on IPv4 reduce by about 1.5Mb/s (megabits). When I disable IPv6, my IPv4 speeds are fully restored. Any idea why that would occur? @randomaustralian @Bigmaccius have either of you noticed this?

                I checked my CPU (which is absolutely massive for my firewall - intel i7 4660K) and it runs at 1% CPU at the best of times :), so its not a CPU issue.

                I don't get this issue with the Telstra router - just with PFSense.

                1 Reply Last reply Reply Quote 0
                • G
                  Gertjan
                  last edited by Mar 4, 2019, 1:44 PM

                  IPv6 Packet "Background noise" ?

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

                  L 1 Reply Last reply Mar 4, 2019, 2:00 PM Reply Quote 0
                  • L
                    Larrikin @Gertjan
                    last edited by Mar 4, 2019, 2:00 PM

                    @gertjan said in IPv6 Native with Telstra, Australia:

                    IPv6 Packet "Background noise" ?

                    I monitor my WAN interface using SNMP and there is no background traffic going on.

                    L 1 Reply Last reply Mar 4, 2019, 2:00 PM Reply Quote 0
                    • L
                      Larrikin @Larrikin
                      last edited by Mar 4, 2019, 2:00 PM

                      This post is deleted!
                      1 Reply Last reply Reply Quote 0
                      • G
                        Gertjan
                        last edited by Gertjan Mar 4, 2019, 2:26 PM Mar 4, 2019, 2:26 PM

                        @larrikin said in IPv6 Native with Telstra, Australia:

                        I monitor my WAN interface using SNMP and there is no background traffic going on.

                        On my very small company network (30 devices) I can't follow the pace of this one :

                        tcpdump -i eth0 -vv ip6
                        

                        where eth0 is my IPv6 WAN interface.
                        A 1 KB / sec flux.

                        try also

                        systat -ifstat
                        

                        I've got a solution for you !

                        0_1551709581586_846d0a7d-70f2-4c52-ae78-a150fb981da7-image.png

                        (ok, silly joke)

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

                        L 1 Reply Last reply Mar 4, 2019, 2:29 PM Reply Quote 0
                        • L
                          Larrikin @Gertjan
                          last edited by Mar 4, 2019, 2:29 PM

                          @gertjan Have you got a mac computer? download peakhourapp.com and point that to your firewall :). Much easier than the above. It tells you exactly the speeds of your interfaces in real time.

                          L 1 Reply Last reply Mar 4, 2019, 4:21 PM Reply Quote 0
                          • L
                            Larrikin @Larrikin
                            last edited by Mar 4, 2019, 4:21 PM

                            @Derelict I am certain I have come across some sort of bug in pfsense that when IPv6 is enabled, IPv4 performance decreases by about 2mb/s both up and down.

                            I have done lots of testing tonight and Telstra's router does not suffer this issue, only pfsense.

                            The moment I turn off IPv6, I get my full speeds back. The moment I turn on IPv6, I lose 2mb/s down and up on IPv4. I cannot replicate that on Telstra's router. I maintain full speeds on IPv4 with IPv6 enabled on Telstra's router.

                            What additional information would you need to help isolate what this bug would be?

                            1 Reply Last reply Reply Quote 0
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