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Windows Server 2012 - IPv6 - PING: transmit failed. General failure.

I thought I had demonstrated that Windows Server 2012 and Windows 7 clients could function in an all IPv6 network (with IPv4 disabled) - at least in the very small test environment I created.
 
In fact, this did work at one point. In previous blog posts, I was able to ping remote hosts using IPv6 addresses. I had disabled IPv4 to see if AD could function on IPv6 alone.
 
I realized something was wrong when I attempted to join a new server to the domain and was informed that:
 
"The domain "machlinkit.biz" could not be found."
 
I also noticed that on the Windows 7 client ("PC1"), the domain was not being detected and the Windows Firewall "Public" profile was being used. Yet this client was joined to the domain.
 
Re-enabling IPv4 restored network connectivity.
 
But I still cannot ping with IPv6.
 
At this point, I am working with only two nodes, both have the Windows Firewall disabled:
 
  • Windows Server 2012 (DC/GC,DNS,DHCP)
  • Windows 7 SP1 client
 
Moreover, nslookup seems to default to IPv6 and fails even with IPv4 re-enabled.

Here is the output of IPCONFIG , PING and NSLOOKUP:

C:\>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : PC1
   Primary Dns Suffix  . . . .  . : machlinkit.biz
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . .. : No
   DNS Suffix Search List. . . . . . : machlinkit.biz


Ethernet adapter Local Area Connection:

   Connection-specific DNS Suffix  . : machlinkit.biz
   Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection
   Physical Address. . . . . . . . . : 00-0C-29-F8-C0-46
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . : Yes
   IPv6 Address. . . . . . . . . . . : fd00::5495:a8c8:c79c:3c33(Preferred)
   Lease Obtained. . . . . . . . . . : Saturday, November 09, 2015 12:09:08 PM
   Lease Expires . . . . . . . . . . : Thursday, November 21, 2015 12:09:08 PM
   Link-local IPv6 Address . . . . . : fe80::e07e:50de:a86e:edc7%11(Preferred)
   IPv4 Address. . . . . . . . . . . : 10.1.1.21(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.0.0.0
   Lease Obtained. . . . . . . . . . : Saturday, November 09, 2015 12:08:50 PM
   Lease Expires . . . . . . . . . . : Saturday, November 09, 2015 12:36:51 PM
   Default Gateway . . . . . . . . . : 10.1.1.4
   DHCP Server . . . . . . . . . . . : 10.1.1.10
   DNS Servers . . . . . . . . . . . : fd00::10
                                                 10.1.1.10

   NetBIOS over Tcpip. . . . . . . . : Enabled



C:\>ping 10.1.1.10

Pinging 10.1.1.10 with 32 bytes of data:
Reply from 10.1.1.10: bytes=32 time<1ms TTL=128
Reply from 10.1.1.10: bytes=32 time<1ms TTL=128
Reply from 10.1.1.10: bytes=32 time<1ms TTL=128
Reply from 10.1.1.10: bytes=32 time<1ms TTL=128

Ping statistics for 10.1.1.10:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms


C:\>ping fd00::10

Pinging fd00::10 with 32 bytes of data:
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.

Ping statistics for fd00::10:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),




C:\>nslookup
Default Server:  UnKnown
Address:  fd00::10

> machlinkit.biz
Server:  UnKnown
Address:  fd00::10

*** UnKnown can't find machlinkit.biz: No response from server
>




I tried this command (on client PC1):

C:\>netsh int ipv6 show neighbors

Interface 1: Loopback Pseudo-Interface 1

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
ff02::c                                                          Permanent
ff02::16                                                         Permanent
ff02::1:2                                                        Permanent


Interface 13: Teredo Tunneling Pseudo-Interface

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
ff02::16                                      255.255.255.255:65535  Permanent
ff02::1:2                                     255.255.255.255:65535  Permanent


Interface 11: Local Area Connection

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
fd00::10                                      00-0c-29-5a-c2-c0  Stale
ff02::2                                       33-33-00-00-00-02  Permanent
ff02::c                                       33-33-00-00-00-0c  Permanent
ff02::16                                      33-33-00-00-00-16  Permanent
ff02::1:2                                     33-33-00-01-00-02  Permanent
ff02::1:3                                     33-33-00-01-00-03  Permanent
ff02::1:ff6e:edc7                             33-33-ff-6e-ed-c7  Permanent
ff02::1:ff9c:3c33                             33-33-ff-9c-3c-33  Permanent





Looks like the IPv6 address of the DC/DNS server is "stale".

If I disable IPv6, nslookup hesitates a second... then seems to resort to IPv4... and finds the DNS server for machlinkit.biz:

C:\>nslookup
DNS request timed out.
    timeout was 2 seconds.
Default Server:  UnKnown
Address:  10.1.1.10

> machlinkit.biz
Server:  UnKnown
Address:  10.1.1.10

Name:    machlinkit.biz
Addresses:  fd00::10
          fd00::24ec:9605:cca:cdad
          10.1.1.10





With the respective firewalls still disabled, I reboot both machines - and then re-enable IPv6 on the Windows 7 client.

Status changes to "reachable" but... still no ping.

C:\>netsh int ipv6 show neighbors

Interface 1: Loopback Pseudo-Interface 1

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
ff02::c                                                          Permanent
ff02::16                                                         Permanent
ff02::1:2                                                        Permanent


Interface 13: Teredo Tunneling Pseudo-Interface

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
ff02::16                                      255.255.255.255:65535  Permanent
ff02::1:2                                     255.255.255.255:65535  Permanent


Interface 11: Local Area Connection

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
fd00::10                                      00-0c-29-5a-c2-c0  Reachable
ff02::2                                       33-33-00-00-00-02  Permanent
ff02::c                                       33-33-00-00-00-0c  Permanent
ff02::16                                      33-33-00-00-00-16  Permanent
ff02::1:2                                     33-33-00-01-00-02  Permanent
ff02::1:3                                     33-33-00-01-00-03  Permanent
ff02::1:ff6e:edc7                             33-33-ff-6e-ed-c7  Permanent



C:\>ping fd00::10
Pinging fd00::10 with 32 bytes of data:
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.
PING: transmit failed. General failure.

Ping statistics for fd00::10:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),





Then status goes to stale again:

C:\>netsh int ipv6 show neighbors

Interface 1: Loopback Pseudo-Interface 1

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
ff02::c                                                          Permanent
ff02::16                                                         Permanent
ff02::1:2                                                        Permanent


Interface 13: Teredo Tunneling Pseudo-Interface

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
ff02::16                                      255.255.255.255:65535  Permanent
ff02::1:2                                     255.255.255.255:65535  Permanent


Interface 11: Local Area Connection

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
fd00::10                                      00-0c-29-5a-c2-c0  Stale
ff02::2                                       33-33-00-00-00-02  Permanent
ff02::c                                       33-33-00-00-00-0c  Permanent
ff02::16                                      33-33-00-00-00-16  Permanent
ff02::1:2                                     33-33-00-01-00-02  Permanent
ff02::1:3                                     33-33-00-01-00-03  Permanent
ff02::1:ff53:5176                             33-33-ff-53-51-76  Permanent
ff02::1:ff6e:edc7                             33-33-ff-6e-ed-c7  Permanent




After an additional reboot of both machines, this time with IPv6 enabled at the time of reboot, the status is still "stale"

C:\>netsh int ipv6 show neighbors

[snip]
Interface 11: Local Area Connection

Internet Address                              Physical Address   Type
--------------------------------------------  -----------------  -----------
fd00::10                                      00-0c-29-5a-c2-c0  Stale



***

So far, my research on Internet has not yielded any solution. I suppose there are not many IPv6-only networks where this might be observed. Has anyone encountered this? Is there a solution?
 
Note: there is no router, IPv6 or other, in the network. Server and client are both guests running on VMware Workstation 9.
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