Broken AAAA for dns.msftncsi.com (Microsoft)

[Christopher Palmer]

This is by design. That DNS name is not actually used for connectivity. Correct resolution is only used to test if DNS is working.

In the Windows  registry, you can see the test parameters used by Windows for Internet connectivity. 
HKLM\System\CurrentControlSet\Services\NLASVC\Parameters\Internet

The ActiveWebProbe class of hosts are actually tested for end to end connectivity, and should have working IP addresses. www.msftncsi.com and ipv6.msftncsi.com specifically.

You can also see that the ActiveDNSProbes map to the names below, and that the ULA is expected. 

---------------------------------------------------------
Christopher.Palmer at microsoft.com
Windows Networking Core - Program Manager
Core Client Connectivity

-----Original Message-----
From: ipv6-ops-bounces+christopher.palmer=microsoft.com at lists.cluenet.de [mailto:ipv6-ops-bounces+christopher.palmer=microsoft.com at lists.cluenet.de] On Behalf Of Dominik Bay
Sent: Saturday, April 6, 2013 9:00 AM
To: ipv6-ops at lists.cluenet.de
Subject: Broken AAAA for dns.msftncsi.com (Microsoft)

Hi,

if anyone of MSFT is reading this, please fix the broken AAAA:

$ host dns.msftncsi.com.
dns.msftncsi.com has address 131.107.255.255 dns.msftncsi.com has IPv6 address fd3e:4f5a:5b81::1


-dominik