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  • IPv6 DNS Recursion Not Working

    Hi All,

    Apologies if this has been brought up before I did search but could not find anything related.

    I have a client who is using IPv4 and IPv6 in a mixed environment. All Servers are 2008.

    The Mac's in the office use IPv6 manually assigned. Pingable, etc.

    The primary DNS address is the IPv6 address and this fails to work cannot get and DNS records back internally or externally, if we swap this to IPv4 it works but wanted the Mac’s to run on IPv6 only.

    If you try to add IPv6 to DNS scope on DNS it states ‘The IP Address xxxxxxxx is not a valid DNS address, do you still want to add it?’

    But the address is correct and that Server does host DNS.

    So this means you can only use DNS via IPv4 or am I missing a massive step for this to work?

    Regards,

    Crafty.

  • #2
    Re: IPv6 DNS Recursion Not Working

    It's hard to understand what you're asking...

    Are you trying to resolve the Mac's hostname to an IPv6 address?
    Can the Mac's resolve any hostnames?
    Have you setup AAAA records for the Mac's?
    Regards,
    Jeremy

    Network Consultant/Engineer
    Baltimore - Washington area and beyond
    www.gma-cpa.com

    Comment


    • #3
      Re: IPv6 DNS Recursion Not Working

      Hi Jeremy,

      Thanks for your reply.

      Sorry I should have added, they basically cannot browse the internet or resolve internally via hostname.

      I have not added the AAAA for the Mac's I will get this done

      I suppose what I'm confused about is if your pointing your Mac's DNS to windows Server 2008 via IPv6 should you still be able to resolve IPv4 addresses via this as most websites etc are IPv4 only.

      Hope that makes a bit more sense

      Crafty.

      Comment


      • #4
        Re: IPv6 DNS Recursion Not Working

        You should, I believe, resolve any record. But getting to an IPv4 address from an IPv6 address will require some transition technologies.

        http://en.wikipedia.org/wiki/Categor...n_technologies

        I would make sure your DNS server is bound to the IPv6 address as well as the IPv4 address.
        Last edited by JeremyW; 10th February 2012, 13:19.
        Regards,
        Jeremy

        Network Consultant/Engineer
        Baltimore - Washington area and beyond
        www.gma-cpa.com

        Comment


        • #5
          Re: IPv6 DNS Recursion Not Working

          Ah ok I will have a good read through that wiki link.

          Thanks Jeremy,

          Crafty.

          Comment


          • #6
            Re: IPv6 DNS Recursion Not Working

            Are the ipv6 addresses manually assigned Link Local or Global

            Link Local: FE80

            Global: 2001 - 3FFF

            Link Local addresses are only used on that particular link. Think of them as the automatic ip addressing in windows 169.x.x.x and are not routable.

            Global addresses are your public IPV6 address space


            Do all your devices in the network support IPV6? (routers etc) If not then you need to tunnel ipv6 over the existing ipv4 network.
            CCNA, CCNA-Security, CCNP
            CCIE Security (In Progress)

            Comment


            • #7
              Re: IPv6 DNS Recursion Not Working

              Hey Auglan,

              The addresses we assigned to the Mac's are:

              fd66:faaf:498a::1001
              -
              fd66:faaf:498a::1005

              Doesn't seem to fit in to any of your categories but I'm guessing the local link one?

              They seem to be able to ping the Server correctly just not route DNS.

              I have setup the AAAA records and reverse lookup zones, etc but still no joy.

              All devices are IPv6 compatible.

              Not too sure think we'll just have to use IPv4 for DNS, not 100% sure why the client really wants v6 in the first place.

              Thanks,

              Crafty.

              Comment


              • #8
                Re: IPv6 DNS Recursion Not Working

                Hi All,

                Just to advise how I got this working.

                DNS was not being bind'ed to the IPv6 address only IPv4, stopping and starting DNS services a few times got this bind'd and now working fine.

                Thanks all,

                Crafty

                Comment

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