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

    Ipv6 static /48

    Scheduled Pinned Locked Moved IPv6
    20 Posts 5 Posters 4.6k 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.
    • A
      andi-ch
      last edited by

      no one any thoughts?  :'(

      1 Reply Last reply Reply Quote 0
      • H
        hda
        last edited by

        Think about & study the logic of the gateway. Why is it within your prefix ?

        1 Reply Last reply Reply Quote 0
        • A
          andi-ch
          last edited by

          I changed the WAN to /64
          My provider gave me the /48 net and informed me that 2a00:xxxx:aaaa::1 is my gateway.

          Internet6:
          Destination                      Gateway                      Flags      Netif Expire
          default                          2a00:bd80:144::1              UGS        em1
          ::1                              link#5                        UH          lo0
          2a00:xxxx:aaaa::/64                link#2                        U          em1
          2a00:xxxx:aaaa::/48                link#2                        U          em1
          2a00:xxxx:aaaa::2                  link#2                        UHS        lo0
          2a00:xxxx:aaaa:3::/64              link#1                        U          em0
          2a00:xxxx:aaaa:3::1                link#1                        UHS        lo0

          I'm asking myself, why that it shows:
          2a00:xxxx:aaaa::/64  link#2                        U          em1
          and
          2a00:xxxx:aaaa::/48  link#2                        U          em1

          1 Reply Last reply Reply Quote 0
          • H
            hda
            last edited by

            Prerequisite: Do not use CLI with pfSense when in setup. Do not fiddle with Gateway(s).

            OK now the gateway looks reasonable. Now flush your connection and wait to get /48 & /64 on WAN expired…
            Then use GUI WAN to config the IPv6.

            1 Reply Last reply Reply Quote 0
            • A
              andi-ch
              last edited by

              Thank you
              I did make all configuration using the GUI.
              Only use cli for commands like ping, netstat, etc.

              But you're right, the routing etc. is also nice done via GUI.
              Here the result after flushing

              Destination Gateway Flags Use Mtu Netif Expire
              default 2a00:xxxx:aaaa::1 UGS 27139 1500 em1
              ::1 link#5 UH 14 16384 lo0
              2a00:xxxx:aaaa::/64 link#2 U 1297 1500 em1
              2a00:xxxx:aaaa::2 link#2 UHS 0 16384 lo0
              2a00:xxxx:aaaa:3::/64 link#1 U 54 1500 em0
              2a00:xxxx:aaaa:3::1 link#1 UHS 0 16384 lo0

              1 Reply Last reply Reply Quote 0
              • H
                hda
                last edited by

                And did it work ? Report with GUI results preferred. Not from CLI.

                Got the /48 on WAN (use Advanced config (Send Options=ia-pd0, Prefix Delegation=checked)) ?
                Made a static LAN (in GUI) and subnet choice, as 2a00:xxxx:aaaa:3::1 mask /64 ?
                Set [Services: Router advertisements] (router only) ?
                Got to a host on your LAN(-switch) and created a static IP there, say 2a00:xxxx:aaaa:3::11 (/128) ?

                Or you made use of other methods like DHCP6-server, SLAAC (or Track Interface) ?

                1 Reply Last reply Reply Quote 0
                • A
                  andi-ch
                  last edited by

                  No still not working.

                  Made a static LAN (in GUI) and subnet choice, as 2a00:xxxx:aaaa:3::1 mask /64 ?
                  Yes,
                  Set [Services: Router advertisements] (router only) ?
                  Yes
                  Got to a host on your LAN(-switch) and created a static IP there, say 2a00:xxxx:aaaa:3::11 (/128) ?
                  Clients receiving ipv6 address. I can ping up to the pfsense wan address. 2a00:xxxx:aaaa::2

                  Got the /48 on WAN (use Advanced config (Send Options=ia-pd0, Prefix Delegation=checked)) ?
                  No, here I'm lost.
                  Is this not if you "track interface"? I have native - static IPV6.

                  Also to make sure, that my provider gave me really /48 net. Just for test, I changed my WAN to the last IP of my range: 2a00:xxxx:aaaa:ffff:ffff:ffff:ffff:fffd and selected /48 (just for test)
                  I was able to ping this IP from http://www.subnetonline.com/pages/ipv6-network-tools/online-ipv6-ping.php
                  That confirmed me, that I have the whole range.

                  WAN is now changed back to 2a00:xxxx:aaaa::2 / 64

                  1 Reply Last reply Reply Quote 0
                  • H
                    hda
                    last edited by

                    Most likely method is an ISP issueing numbers with a DHCP6-server, collected by your use of a DHCP6-client (PD).
                    See [Interfaces: WAN] (IPv6 Configuration Type=DHCP6).

                    So how, by what method, does your ISP want you to connect with them … ?

                    1 Reply Last reply Reply Quote 0
                    • A
                      andi-ch
                      last edited by

                      Assuming they routed the 2A00:xxxx:aaaa/48 via interface / 48 net. 2A00:xxxx:aaa1

                      1 Reply Last reply Reply Quote 0
                      • D
                        doktornotor Banned
                        last edited by

                        Instead of assuming, why don't just give them a call and ask? Because your assumptions clearly don't work.

                        1 Reply Last reply Reply Quote 0
                        • H
                          hda
                          last edited by

                          It will not work with assumptions. Good Luck… Contemplate reply#2 & reply#8 again.

                          1 Reply Last reply Reply Quote 0
                          • A
                            andi-ch
                            last edited by

                            With assuming I meant, they told me so, it means I have to trust them.

                            1 Reply Last reply Reply Quote 0
                            • A
                              andi-ch
                              last edited by

                              I'm used to cisco, simple routing.

                              R1#configure terminal
                              R1(config)#interface gigabitEthernet 0/0
                              R1(config-if)#ipv6 address 2001:db8:0:1::1/64
                              R1(config-if)#no shutdown
                              R1(config-if)#exit
                              R1(config)#interface serial 1/0
                              R1(config-if)#ipv6 address fe80::1 link-local
                              R1(config-if)#no shutdown
                              R1(config-if)#exit
                              R1(config)#exit
                              R1#

                              R2#configure terminal
                              R2(config)#interface gigabitEthernet 0/0
                              R2(config-if)#ipv6 address 2001:db8:0:2::1/64
                              R2(config-if)#no shutdown
                              R2(config-if)#exit
                              R2(config)#int serial 1/0
                              R2(config-if)#ipv6 address fe80::2 link-local
                              R2(config-if)#no shutdown
                              R2(config-if)#exit
                              R2(config)#interface serial 1/1
                              R2(config-if)#ipv6 address fe80::2 link-local
                              R2(config-if)#no shutdown
                              R2(config-if)#exit
                              R2(config)#exit

                              and so on

                              we are connected via fiber, so they have a cisco router, simple routed our /48 to "our" gateway interface.
                              So DHCP is not a option.

                              1 Reply Last reply Reply Quote 0
                              • H
                                hda
                                last edited by

                                Ofcourse it is an option ! Did you try/test it …?

                                1 Reply Last reply Reply Quote 0
                                • A
                                  andi-ch
                                  last edited by

                                  Not yet, looking for an cisco router….
                                  Let you know.

                                  1 Reply Last reply Reply Quote 0
                                  • H
                                    hda
                                    last edited by

                                    Well, I meant to say do test WAN-DHCP6(PD) with pfSense on the fiber-line with native IPv6…

                                    Anyway, I think you want for an "Upstream Gateway" number outside your /48 domain.

                                    And how do you connect by IPv4 ?

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

                                      Your ISP is routing the /48 to something.  That something is how your WAN interface's IPv6 should be configured.

                                      It might be DHCPv6, it might be static, it might be link-local.  Only they know.

                                      It it's really a static /48 you'll be good to go once you get it sorted out.

                                      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
                                      • jimpJ
                                        jimp Rebel Alliance Developer Netgate
                                        last edited by

                                        Given the settings in the OP, it's static. The first /64 of the /48 is for WAN.

                                        Looks like the only mistake made in the first post is that the prefix length on WAN should be /64 not /48. It's common for ISPs to use the first /64 of a routed block such as a /48 for the interconnect.

                                        On the outside chance that the ISP actually made the /48 on WAN that's an error on their part, it should have the /48 routed to your 2a00:xxxx:aaaa:::2 with prefix set to /64.

                                        Run a packet capture on WAN as you attempt to ping from a host on LAN, see what happens. If the ping leaves but doesn't come back at all, that's upstream routing. If the ping leaves and you see an NDP request on WAN for the LAN address, they fudged the prefix.

                                        Remember: Upvote with the 👍 button for any user/post you find to be helpful, informative, or deserving of recognition!

                                        Need help fast? Netgate Global Support!

                                        Do not Chat/PM for help!

                                        1 Reply Last reply Reply Quote 0
                                        • A
                                          andi-ch
                                          last edited by

                                          Yes /48 on the WAN was definitely wrong.

                                          I had again contact with my ISP. They gave me now a transfernet /126 for my WAN. They routed the /48 to my WAN IP.
                                          But still not working, I believe or better sure this is not a pfsense or my config error. I don't have confidence in my provider now.

                                          I'm able to ping from LAN side, even from a host (computer) to they're router - my gateway.

                                          Asked them now to send there "show running-config ipv6", which they won't give me….

                                          caputre:
                                          no NDP request found. No response seen to ICMPv6 request in frame 38.
                                          That's all about I see.

                                          Keep you posted.

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