How To Use The Terredo IPv6 Tunnel..? If you are using windows 7, IPv4 and IPv6 co-exist Although more use IPv4. Now here's how to setup that you use IPv6 exclusively. 1. right click on the Desktop (home screen), hold New > shortcut Fill that column with "cmd.exe"/"cmd" press Next and Finish.      2. right click on cmd and select "Run as administrator".    3. typing "netsh" and enter.    4....