Windows – How to install the Microsoft 6to4 Adapter

ipv6network-adapternetworkingteredowindows 7

I'm unable to see the 6to4/Teredo adapter anywhere in my Windows 7 installation. In my Device Manager, the only network adapters are my wireless Realtek card, and "TAP-Win32 Adapter OAS" which is for my OpenVPN.

ipconfig /all output:

Windows IP Configuration

   Host Name . . . . . . . . . . . . : laptop
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : home

Wireless LAN adapter Wireless Network Connection:

   Connection-specific DNS Suffix  . : home
   Description . . . . . . . . . . . : Realtek RTL8188CE Wireless LAN 802.11n PCI-E NIC
   Physical Address. . . . . . . . . : 20-16-D8-3D-34-3D
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::4c19:6e2f:6e46:611c%12(Preferred)
   IPv4 Address. . . . . . . . . . . : 10.200.112.3(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.248
   Lease Obtained. . . . . . . . . . : 20 August 2013 10:48:59
   Lease Expires . . . . . . . . . . : 20 August 2013 11:04:04
   Default Gateway . . . . . . . . . : 10.200.112.1
   DHCP Server . . . . . . . . . . . : 10.200.112.1
   DHCPv6 IAID . . . . . . . . . . . : 387978968
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-19-96-51-21-20-16-D8-3D-34-3D

   DNS Servers . . . . . . . . . . . : 192.168.22.22
                                       192.168.22.23
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection 2:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : TAP-Win32 Adapter OAS
   Physical Address. . . . . . . . . : 00-FF-6F-D7-85-4B
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{6FD7854B-74C3-4774-AB9B-8F07BBE4FE6D}:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.home:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . : home
   Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes

route print output:

===========================================================================
Interface List
 12...20 16 d8 3d 34 3d ......Realtek RTL8188CE Wireless LAN 802.11n PCI-E NIC
 11...00 ff 6f d7 85 4b ......TAP-Win32 Adapter OAS
  1...........................Software Loopback Interface 1
 15...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter
 14...00 00 00 00 00 00 00 e0 Microsoft ISATAP Adapter #2
===========================================================================

IPv4 Route Table
===========================================================================
Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0     10.200.112.1     10.200.112.3     40
     10.200.112.0  255.255.255.248         On-link      10.200.112.3    296
     10.200.112.3  255.255.255.255         On-link      10.200.112.3    296
     10.200.112.7  255.255.255.255         On-link      10.200.112.3    296
        127.0.0.0        255.0.0.0         On-link         127.0.0.1    306
        127.0.0.1  255.255.255.255         On-link         127.0.0.1    306
  127.255.255.255  255.255.255.255         On-link         127.0.0.1    306
        224.0.0.0        240.0.0.0         On-link         127.0.0.1    306
        224.0.0.0        240.0.0.0         On-link      10.200.112.3    296
  255.255.255.255  255.255.255.255         On-link         127.0.0.1    306
  255.255.255.255  255.255.255.255         On-link      10.200.112.3    296
===========================================================================
Persistent Routes:
  None

IPv6 Route Table
===========================================================================
Active Routes:
 If Metric Network Destination      Gateway
  1    306 ::1/128                  On-link
 12    296 fe80::/64                On-link
 12    296 fe80::4c19:6e2f:6e46:611c/128
                                    On-link
  1    306 ff00::/8                 On-link
 12    296 ff00::/8                 On-link
===========================================================================
Persistent Routes:
  None

How can I install/enable the adapter?

Best Answer

6to4 only works when your system has a public IPv4 address. As you have private address 10.200.112.3 it is not possible to run 6to4 on this system.

6to4 is also very unreliable, so I advise you to avoid it. If you want IPv6 access you are much better off looking at reliable tunnel brokers like Hurricane Electric and SixXS.

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