Microsoft Windows [Version 6.0.6001] (C) Copyright 2006 Microsoft Corp. c:\windows>netsh interface ipv6 6to4 set state ?
Usage: set state [[state=](enabled|disabled|automatic|default)][[undoonstop=](enabled|disabled|default)]
Parameters:
Tag Value
state - Whether 6to4 is enabled.
undoonstop - Whether 6to4 is disabled on service stop.
Remarks: Sets the 6to4 configuration state.
Examples:
set state default default
set state state=enabled undoonstop=disabled