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    Multiple IPV6 Tunnels

    IPv6
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    • J
      joe_cowboy
      last edited by

      Wire Shark Capture:

      12 0.699003 fe80::aac9:adff:fe39:dfb ff02::1 ICMPv6 166 Router Advertisement from aa:c9:ad:39:0d:fb

      Frame 12: 166 bytes on wire (1328 bits), 166 bytes captured (1328 bits)
      Ethernet II, Src: aa:c9:ad:39:0d:fb (aa:c9:ad:39:0d:fb), Dst: IPv6mcast_00:00:00:01 (33:33:00:00:00:01)
      Internet Protocol Version 6, Src: fe80::aac9:adff:fe39:dfb (fe80::aac9:adff:fe39:dfb), Dst: ff02::1 (ff02::1)
      Internet Control Message Protocol v6
        Type: Router Advertisement (134)
        Code: 0
        Checksum: 0xec6d [correct]
        Cur hop limit: 64
        Flags: 0xc0
          1… .... = Managed address configuration: Set
          .1.. .... = Other configuration: Set
          ..0. .... = Home Agent: Not set
          ...0 0... = Prf (Default Router Preference): Medium (0)
          .... .0.. = Proxy: Not set
          .... ..0. = Reserved: 0
        Router lifetime (s): 1800
        Reachable time (ms): 0
        Retrans timer (ms): 0
        ICMPv6 Option (Source link-layer address : aa:c9:ad:39:0d:fb)
          Type: Source link-layer address (1)
          Length: 1 (8 bytes)
          Link-layer address: aa:c9:ad:39:0d:fb (aa:c9:ad:39:0d:fb)
        ICMPv6 Option (Prefix information : 2001:470:2d8f:2::/64)
          Type: Prefix information (3)
          Length: 4 (32 bytes)
          Prefix Length: 64
          Flag: 0xc0
            1... .... = On-link flag(L): Set
            .1.. .... = Autonomous address-configuration flag(A): Set
            ..0. .... = Router address flag(R): Not set
            ...0 0000 = Reserved: 0
          Valid Lifetime: 2592000
          Preferred Lifetime: 604800
          Reserved
          Prefix: 2001:470:2d8f:2:: (2001:470:2d8f:2::)
        ICMPv6 Option (Recursive DNS Server 2001:470:2d8f:2::1)
          Type: Recursive DNS Server (25)
          Length: 3 (24 bytes)
          Reserved
          Lifetime: 900
          Recursive DNS Servers: 2001:470:2d8f:2::1 (2001:470:2d8f:2::1)
        ICMPv6 Option (DNS Search List Option pfSense.localdomain)
          Type: DNS Search List Option (31)
          Length: 4 (32 bytes)
          Reserved
          Lifetime: 900
          Domain Names: pfSense.localdomain
          Padding

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      • M
        mdpugh
        last edited by

        These seem correct at first glance.  Have you captured any of the DHCPv6 messages?

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        • J
          joe_cowboy
          last edited by

          What kind of messages do you want?  What are you wanting me to capture with WireShark?

          Thanks again…

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          • M
            mdpugh
            last edited by

            Start with a DHCPv6 Solicit and its accompanying DHCPv6 Advertisement.  That's probably enough to see what's happening (or not).

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            • M
              mdpugh
              last edited by

              On a Windows client type ipconfig /release6 in a Powershell (or command prompt) window.  The start Wireshark capturing on an interface that will request an IPv6 address from pfSense.  Return to Powershell and type ipconfig /renew6.  Stop capture and examine the DHCPv6 messages between machines.  Post here if you like or send me the capture file.

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              • M
                mdpugh
                last edited by

                Are you positive that the client is getting the IPv6 address from the server?  The client you ran ipconfig on should have an address ending in :ebcf provided you haven't released it since running Wireshark.  Here is what I'm not seeing: DHCPv6 Request and DHCPv6 Reply.  The fact that an Advertise message appears in response to each Solicit proves that your server is hearing your client.  The client is then supposed to respond to the Advertise with a Request and, finally, the server answers with a Reply.  The absence of the Request indicates to me that your client isn't responding (or responding properly) to the server.  But if the client is getting an IPv6 address from the server, then we have a more complicated scenario because it's responding to the Advertise only in part.  I'll have to do some digging to see at what point in the message/response sequence the client commits to the address.  There is enough information in the Advertise for the client to extract the offered address, but there is also enough for it to get the DNS server address, so why one and not the other?  No matter what, though, the client should be sending a Request and it isn't.

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                • J
                  joe_cowboy
                  last edited by

                  This is happening to all clients on the network even on LAN.  The Wireshark output I sent you was on WLAN.

                  Thanks again for looking at the Wireshark data.

                  -Joe Cowboy

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                  • M
                    mdpugh
                    last edited by

                    Get the client in an identical state to what it was in immediately after the Wireshark capture you sent me (the corrected one).  Then run ipconfig /all and netsh interface ipv6 show int where <int#>is the interface that just obtained the IPv6 address from pfSense.  You can post the results here, obfuscate addresses if desired, or e-mail them to me.  The second Wireshark capture looks like this should be working.</int#>

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                    • J
                      joe_cowboy
                      last edited by

                      Thank you for all your extensive help mdpugh.  Figured out the major foobar from you help….  I had for the interface Bridge the wrong IPv6 address: I didn't have the proper Routed IPv6 Prefixes range of address.  So that issue is fixed now. I can get to IPv6 websites now.  So the DHCPv6 now hands out the correct Routed IPv6 Prefixes range and also the DNS server IPv6 address but still not the GATWAY IPv6 address.  That is still a work on progress from the pfSense team getting that to work.

                      However the other issue is still happening with the other two tunnels I have set up.  The Gateways still show Offline.

                      -Joe Cowboy

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                      • M
                        mdpugh
                        last edited by

                        As I understand it, the current specification dictates that the router hand out only its link-local address in the RA (not counting a link-local CARP address, I suppose  ;D) and that DHCPv6 not distribute any gateway address.  I don't know if providing additional functionality violates the specification per se, but the spec doesn't call for it, and it shouldn't be counted upon.  Is that correct?  Or would it be outright nonconformance?

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                        • J
                          joe_cowboy
                          last edited by

                          Has anybody tried setting up two or more HE.net tunnels on their pfSense router with multiple WAN interfaces?  Where each WAN has it's own tunnel?  If so does your TUNNNEL GATEWAY that is not associated with the main WAN interface show Oneline.  Why I say that WAN1 and WAN2 Tunnels show offline.  I have deleted the tunnels multiple times and recreating them.

                          Another thought if you group them aka loadbalance these tunnels would you have to manually add  a IPv6 address to the interface the DHCPv6 server sits on "Routed /64" subnet from HE.net tunnel.  Then also statically add an IPv6  address on your client machines from each of the "Routed /64" subnet tunnels?

                          Thanks for your help.

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                          • M
                            mdpugh
                            last edited by

                            What are your pfSense configurations for all three tunnel interfaces?  Show IPv6 address, IPv6 gateway, IPv4 endpoints, etc.

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                            • Y
                              yon
                              last edited by

                              Me too. I have setup Second ipv6 tunnel via Second WAN, but it is show offline.  :(

                              If you are interested in free peering for clearnet and dn42,contact me !

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                              • Y
                                yon
                                last edited by

                                I find once creat second ipv6 tunnel in interface,then all ipv6 tunnel link will offline.

                                If you are interested in free peering for clearnet and dn42,contact me !

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                                • jimpJ
                                  jimp Rebel Alliance Developer Netgate
                                  last edited by

                                  I've got two tunnels, one on each WAN. Both are online, and thanks to NPt and some gateway groups, I have working IPv6 multi-wan. Not sure why others might be having issues, but the same things apply as usual.

                                  1. Make sure you have a distinct tunnel endpoint for each tunnel. For example, one to Chicago, one to Dallas, one to NY, etc. Don't use the same HE.net endpoint for more than one.
                                  2. Make sure all your WANs allow ICMP from the endpoints
                                  3. Perhaps add a static route to the remote endpoint node to make sure they use the proper WAN

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                                  • Y
                                    yon
                                    last edited by

                                    @jimp:

                                    I've got two tunnels, one on each WAN. Both are online, and thanks to NPt and some gateway groups, I have working IPv6 multi-wan. Not sure why others might be having issues, but the same things apply as usual.

                                    1. Make sure you have a distinct tunnel endpoint for each tunnel. For example, one to Chicago, one to Dallas, one to NY, etc. Don't use the same HE.net endpoint for more than one.
                                    2. Make sure all your WANs allow ICMP from the endpoints
                                    3. Perhaps add a static route to the remote endpoint node to make sure they use the proper WAN

                                    I have check its like you said.

                                    1. I am sure. and success creat tunnel in tunnelbroker.net.

                                    2. I think should had do allow ICMP from the endpoints. because tunnelbroker.net endpoint has update.

                                    3. whats add route ?

                                    20120329043720.jpg
                                    20120329043720.jpg_thumb

                                    If you are interested in free peering for clearnet and dn42,contact me !

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                                    • jimpJ
                                      jimp Rebel Alliance Developer Netgate
                                      last edited by

                                      System > Routing, Routes tab. Add a route for the endpoint IP, pick the WAN you have it attached to, save/apply, repeat for the other endpoints.

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

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                                      Do not Chat/PM for help!

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                                      • Y
                                        yon
                                        last edited by

                                        @jimp:

                                        System > Routing, Routes tab. Add a route for the endpoint IP, pick the WAN you have it attached to, save/apply, repeat for the other endpoints.

                                        thank you jimp .  :-*  now it seem is online.

                                        it is should write in your wiki doc. I have no find about this.

                                        then How I do will second ipv6 subnet address add in LAN?  LAN only can an ipv6 address ?

                                        If you are interested in free peering for clearnet and dn42,contact me !

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                                        • jimpJ
                                          jimp Rebel Alliance Developer Netgate
                                          last edited by

                                          You don't use both at once on LAN. You just use one on LAN and setup NPt (sort of like 1:1 NAT) for the WAN routed /64's.

                                          See my other doc here:
                                          http://doc.pfsense.org/index.php/Multi-WAN_for_IPv6

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

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                                          Do not Chat/PM for help!

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                                          • Y
                                            yon
                                            last edited by

                                            @jimp:

                                            You don't use both at once on LAN. You just use one on LAN and setup NPt (sort of like 1:1 NAT) for the WAN routed /64's.

                                            See my other doc here:
                                            http://doc.pfsense.org/index.php/Multi-WAN_for_IPv6

                                            OK.  I have done. How I know Whether this success ?

                                            If you are interested in free peering for clearnet and dn42,contact me !

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