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    A little help setting up a connection

    Scheduled Pinned Locked Moved IPv6
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    • T
      Trendkill99 @Derelict
      last edited by

      @derelict said in A little help setting up a connection:

      netstat -rnfinet6

      This command show this table:
      0_1535461752290_print.jpg (/assets/uploads/files/1535461707419-print.jpg)

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      • GertjanG
        Gertjan
        last edited by

        @trendkill99 said in A little help setting up a connection:

        @derelict

        No default line ....

        It should look like this :

        [2.x.y-RELEASE][admin@pfsense.b**-h***-f*****.net]/root: netstat -rnfinet6
Routing tables

Internet6:
Destination                       Gateway                       Flags     Netif Expire
default                           2001:470:****:5c0::1          UGS        gif0
::1                               link#4                        UH          lo0
2001:470:****:5c0::1              link#8                        UH         gif0
2001:470:****:5c0::2              link#8                        UHS         lo0
2001:470:****:5c0::/64            link#3                        U          fxp0
2001:470:****:5c0:2::1            link#3                        UHS         lo0
2001:470:****:2::/64              link#9                        U        ovpns1
2001:470:****:2::1                link#9                        UHS         lo0
fe80::%rl0/64                     link#1                        U           rl0
fe80::2e0:4cff:fe80:4b18%rl0      link#1                        UHS         lo0
fe80::%sis0/64                    link#2                        U          sis0
fe80::20f:b5ff:fefe:4ee7%sis0     link#2                        UHS         lo0
fe80::%fxp0/64                    link#3                        U          fxp0
fe80::212:3fff:feb3:5875%fxp0     link#3                        UHS         lo0
fe80::%lo0/64                     link#4                        U           lo0
fe80::1%lo0                       link#4                        UHS         lo0
fe80::%gif0/64                    link#8                        U          gif0
fe80::2e0:4cff:fe80:4b18%gif0     link#8                        UHS         lo0
fe80::%ovpns1/64                  link#9                        U        ovpns1
fe80::2e0:4cff:fe80:4b18%ovpns1   link#9                        UHS         lo0

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

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        • T
          Trendkill99 @Gertjan
          last edited by

          @gertjan

          Thanks for your reply. In this case what should i do ?

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          • GertjanG
            Gertjan
            last edited by Gertjan

            My IPv6 is more a static setup - and rather special because of the usage of a GIF interface (whatever that my be ... but it works).
            Yours is a more basic DHCP version IPv6 - so, IP's, DNS and gateway are assigned to you by your ISP, although every ISP does things "somewhat different".

            Something - I can't detail more - isn't functioning right .... the default route is assigned for some reason.

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

            T DerelictD 2 Replies Last reply Reply Quote 0
            • T
              Trendkill99 @Gertjan
              last edited by

              @gertjan

              But my previous cisco router (rv340) worked with this cable modem (arris tg1692). At certain point the router loses ipv6 connection and needed a reboot to bring back ipv6 connectivity.

              In my case, is there a way to pfsense send router solicitation to my cable modem ?

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              • DerelictD
                Derelict LAYER 8 Netgate
                last edited by Derelict

                So the Cisco didn't really work either. That points upstream.

                You will probably have to capture traffic on the WAN and become one with looking at IPv6 router solicitations and advertisements so you can go back to the ISP and tell them what's what.

                They should be periodically advertising a default route that your WAN interface would pick up on and should respond to the solicitations that should be periodically going out WAN.

                https://en.wikipedia.org/wiki/Neighbor_Discovery_Protocol

                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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                • DerelictD
                  Derelict LAYER 8 Netgate @Gertjan
                  last edited by

                  @gertjan said in A little help setting up a connection:

                  Yours is a more basic DHCP version IPv6 - so, IP's, DNS and gateway are assigned to you by your ISP

                  Gateways are never assigned by DHCPv6. They are found using NDP.

                  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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                  • T
                    Trendkill99 @Derelict
                    last edited by

                    @derelict

                    Cisco work for 2-3 days then go down. After a reboot the ipv6 comes back.

                    There is no chance to get support from my isp. Is there a way to do this using pfsense?

                    I have tried this solution https://forum.netgate.com/topic/40344/how-to-bring-interface-up-from-pfsense-commandline/7 but with no success.

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                    • DerelictD
                      Derelict LAYER 8 Netgate
                      last edited by

                      Again, this works in pfSense if the ISP does what it is supposed to be doing, as is evidenced by at least my DHCP6 connection to Cox that pretty much never goes down and countless others.

                      I would packet capture on WAN for IPv6 for a while (set 100000 packets or something), pull it into Wireshark and see what's there.

                      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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                      • T
                        Trendkill99 @Derelict
                        last edited by

                        @derelict

                        I did the packet capture on my wan interface. I have opened the .cap file but there is no ipv6 packets.

                        When I capture any traffic it returns a lot of stuff.

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                        • DerelictD
                          Derelict LAYER 8 Netgate
                          last edited by

                          How long did you let it run for? I would edit/save WAN (no changes necessary) while capturing. I would only capture on address family IPv6.

                          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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                          • T
                            Trendkill99 @Derelict
                            last edited by

                            @derelict

                            For some minutes..5 or so.

                            I will do this edit/save wan now.

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                            • DerelictD
                              Derelict LAYER 8 Netgate
                              last edited by

                              FWIW, my upstream (Cox) sends an RA every 4 seconds or so.

                              Internet Control Message Protocol v6
    Type: Router Advertisement (134)
    Code: 0
    Checksum: 0xfa70 [correct]
    [Checksum Status: Good]
    Cur hop limit: 64
    Flags: 0xc0, Managed address configuration, Other configuration, Prf (Default Router Preference): Medium
    Router lifetime (s): 1800
    Reachable time (ms): 3600000
    Retrans timer (ms): 0
    ICMPv6 Option (Source link-layer address : 2c:86:d2:89:20:19)
        Type: Source link-layer address (1)
        Length: 1 (8 bytes)
        Link-layer address: 2c:86:d2:89:20:19
    ICMPv6 Option (MTU : 1500)
        Type: MTU (5)
        Length: 1 (8 bytes)
        Reserved
        MTU: 1500

                              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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                              • T
                                Trendkill99 @Derelict
                                last edited by

                                @derelict

                                I don't know where can I see this info.

                                My wireshark capture now have some things related to ipv6

                                1_1535477857224_screen2.jpg 0_1535477857223_screen1.jpg

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                                • DerelictD
                                  Derelict LAYER 8 Netgate
                                  last edited by Derelict

                                  Yeah. See those router solicitations in the second screen shot that aren't being responded to?

                                  There's your problem. pfSense is asking, they're not responding.

                                  You can limit the capture to protocol ICMPv6 to eliminate a lot of that noise too.

                                  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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                                  • T
                                    Trendkill99 @Derelict
                                    last edited by Trendkill99

                                    @derelict

                                    So in this case I really need to contact my isp to change the cable modem right?

                                    0_1535479204978_screen3.jpg

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                                    • DerelictD
                                      Derelict LAYER 8 Netgate
                                      last edited by Derelict

                                      All pfSense can do is send the Router Solicitations and listen for Router Advertisements, so, yes. I don't see how anyone other than the ISP can help here.

                                      Note that the last screen shot is full of Neighbor Solicitations which is more like the equivalent of ARP in IPv4.

                                      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)

                                      T 1 Reply Last reply Reply Quote 0
                                      • T
                                        Trendkill99 @Derelict
                                        last edited by

                                        @derelict

                                        Thank you for helping me. I will contact isp and see what they can do for me.

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                                        • T
                                          Trendkill99
                                          last edited by

                                          I have contacted them and they suggested me to change my cable modem.

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                                          • DerelictD
                                            Derelict LAYER 8 Netgate
                                            last edited by

                                            Hmm. Did they make a recommendation? I use a Netgear CM600 here. Pretty much the only thing I don't like is how tall it is.

                                            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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