Re: ipv6 dns server.

Thank you for your detailed explaination.

3. *BSD nodes (maybe also Linux, not sure) can do DNS resolution over
    either IPv4 or IPv6. I understand that Vista (NG of WinXP) should also
    be able to do this.

Debian(linux) nodes can send/get IPv6 DNS queries and replies by editing the
"resove.conf"

nameserver 2001:4bd0::1

I think you are right with WinXP because for IPV4 stack i should enter a dns
server address for static ip configuration. And for ipv6 stack i can add an
ipv6 dns server address. But it never uses the ipv6 one...But in Vista there
is only one stack that combines ipv4 and ipv6. I should try using only ipv6
address for dns server in WinVista as soon as possible.

Again thanks for your quick response..

Happy new year to all ipv6 users and developers))



On 1/1/06, Lawrence Hughes <[email protected]> wrote:
>
>  1. It is my understanding that WinXP even with SP2 still cannot actually
> do
>     DNS resolution (lookup) over IPv6, only over IPv4.
>
> 2. For dual stack, you should configure your DNS server(s) to publish both
>     A (IPv4) and AAAA (IPv6) records (and corresponding IPv4 and IPv6 PTR
>     records in appropriate reverse zones for each). The DNS server(s)
> ideally
>     should be accessible over both IPv4 and IPv6.
>
> 3. *BSD nodes (maybe also Linux, not sure) can do DNS resolution over
>     either IPv4 or IPv6. I understand that Vista (NG of WinXP) should also
>     be able to do this. If you have ONLY WInXP nodes, it is in theory
>     superfluous to have your DNS servers accept connections over IPv6,
>     as that will never be used (though clients can still obtain both A and
> AAAA
>     records over IPv4, and make actual connections to the looked-up nodes
>     over IPv6, assuming AAAA records are present).
>
> Note that what protocol you communicate with the DNS server has nothing
> to do with what kind of addresses (IPv4, IPv6 or both) are retrieved.
>
> Most client computers (DNS resolvers) that support IPv6 will (and should)
> use the IPv6 addresses preferentially over IPv4 when both are returned
> from the DNS.
>
> If you have multiple DNS servers, ALL should publish both A and AAAA
> records.
>
> Currently, with limitations of WinXP SP2, I would recommend running in
> a dual stack network (all nodes support and have addresses for both IPv4
> and IPv6), and make DNS servers accept connections over both IPv4 and
> IPv6.
>
> I don't believe any node I've worked with allows you to configure one (set
> of) DNS address(es) for IPv4 lookups and a different one (set of)
> addresses
> for IPv6 lookups.
>
> It all kind of comes together at the DNS server.
>
> Someday, it will be possible to have pure IPv6 only network segments,
> with DNS servers holding only AAAA records. There are two problems
> with that today - WinXP DNS resolution and issues of returning more
> than 512 bytes of root hint data in a single UDP packet (a limitation of
> the worldwide DNS system design a lot of people are trying to find
> solutions to as we speak). Until then, deploy dual stack - it will work
> great.
>
> Any MS experts out there who can clarify DNS resolver situation of
> MS clients for certain?
>
> Lawrence Hughes
> InfoWeapons Corp. - www.infoweapons.com
>
>
> ------------------------------
> *From:* [email protected] on behalf of mustafa sahin
> *Sent:* Mon 1/2/2006 1:58 AM
> *To:* [email protected]
> *Subject:* ipv6 dns server.
>
> Hi all,
>
> My problem is; I defined an ipv6 dns server to my WinXP dual stack client.
> It also has another dns server with ipv4 address. It checks firstly ipv4
> dns-server, not hte ipv6 one. To fix this problem i removed the other ipv4
> dns-server address and write the ipv4 address of my ipv6 dns server. It
> works with this opinion. Does anyone have and idea how i can activate 2
> different dns servers; one is for ipv4 querries one is for ipv6. Or how can
> i make ipv6 dns-server as a first option to resolve the name to ip in my
> client.
>
> Thanks everyone who reads this messege. Happy new year..
>
> -
> Mustafa
>