我们只用使用以下3条命令把IPv6的接口关闭即可
  netsh interface teredo set state disable
  netsh interface 6to4 set state disabled
  netsh interface isatap set state disabled
  若想还原IPv6隧道则用以下命令:
  netsh interface teredo set state default
  netsh interface 6to4 set state default
  netsh interface isatap set state default