IPv6 uitzetten van ISATAP/Teredo
To disable isatap teredo and 6to4 on a Windows 7 workstation, type the following at the prompt. You do of course need Administrative access on the workstation to do this.
If like myself your running dual stack IPv6 via your router or gateway, then there is really no need to have them running.
To re-enable isatap teredo nd 6to4, just replace the disabled with enable using the commands above.