Is teredo tunneling pseudo-interface really needed to my pc? If yes,why?

[lowuncle081]

[David Blanchard]

Option#1
Problem: In Device Manager, a yellow explanation mark appears beside "Teredo Tunneling Pseudo-Interface". Opening the driver shows that "The device cannot start" with error code 10.

Solution:
1. Open command prompt with administrator credentials (Find CMD and right-click - Run as Administrator).
2. Enter netsh environment. Type "netsh" and ENTER.
3. "int teredo" and ENTER
4. "set state disabled" and ENTER.
5. Open Device Manager and uninstall "Teredo Tunneling Pseudo-Interface".
6. Open command prompt with administrator credentials once again.
7. netsh + ENTER.
8. "int ipv6" + ENTER
9. "set teredo client" + ENTER
10. Open Device Manager and Scan for new hardware.
11. Select "Show hidden devices" from the View menu. You will now see that it is present without errors with any luck.


Sources:
http://www.microsoft.com/technet/net...v6/teredo.mspx
http://www.microsoft.com/technet/net...v6_teredo.mspx

Option#2
If the item is disabled.
In the start menu search bar type in REGEDIT to open the registry editor. Navigate through the following:

HKEY_LOCAL_MACHINE\SYSTEM\CURRENTCONTROLSET\SERVICES\TCPIP6\PARAMETERS.

In the right pane look for Disabled Components, right click Disabled Components and select edit. Set the DWord value to 0. (If you do have Disabled Components there, the value may for example be set to ff which is invalid.) You must Restart your computer and the teredo tunneling adapter will now start.

[L.N.]

Teredo tunneling is a temporary solution to provide IPV6 connectivity for computers that only have an IPV4 internet connection. IPV6 will eventually replace IPV4 as the standard protocol of the internet. If you have native IPV6 available you should disable Teredo tunneling and use native IPV6 for better performance. If you do not have native IPV6 connectivity and disable it you will not be able to connect to IPV6 only websites. Since these are still relatively rare you will likely not see any difference, but this will change in the future as more sites move to IPV6 only.