Windows 2003 DNS server's IPv6 support

[Frank Bulk - iName.com]

Sean confirmed with his DNS folk that the W2K03 DNS server does not
*originate* IPv6 requests, so records for domain names that have IPv6-only
glue will not succeed (i.e. onlyv6.com).  W2K08 does not have this
limitation.

Frank

-----Original Message-----
From: Sean Siler [mailto:Sean.Siler at microsoft.com] 
Sent: Saturday, May 22, 2010 3:28 AM
To: frnkblk at iname.com; ipv6-ops at lists.cluenet.de
Subject: RE: Windows 2003 DNS server's IPv6 support

On your Win2K3 Server, run the following command:

dnscmd /config /EnableIPv6 1

That will allow DNS to use IPv6 instead of IPv4.  In Windows Server 2008 and
2008 R2, that command isn't necessary; they allow v6 or v4 communications by
default.



Sean Siler
Microsoft IPv6 Guy

-----Original Message-----
From: ipv6-ops-bounces+sean.siler=microsoft.com at lists.cluenet.de
[mailto:ipv6-ops-bounces+sean.siler=microsoft.com at lists.cluenet.de] On
Behalf Of Frank Bulk
Sent: Friday, May 21, 2010 19:36
To: ipv6-ops at lists.cluenet.de
Subject: Windows 2003 DNS server's IPv6 support

>From my initial testing it looks like Windows 2003's DNS server listens 
>on
an IPv6 address, but won't initiate requests to the root servers, etc on
IPv6.  When I did a v6 dig from a *nix box while doing a packet capture on
the Windows 2003 server, I saw the UDP request for onlyv6.com, but the DNS
server's queries to the root server for the NS records and all subsequent
queries were v4.  The result was "no servers could be reached".

Can anyone else confirm this behavior?  Is that resolved in Windows 2008?

Frank