The tunctl tool for controlling the TUN/TAP driver in Linux.
리눅스에서 TUN/TAP 드라이버를 제어하기 위한 tunctl 도구
MAN : http://linux.die.net/man/8/tunctl
tunctl: invalid option -- h
Create: tunctl [-b] [-u owner] [-t device-name] [-f tun-clone-device]
Delete: tunctl -d device-name [-f tun-clone-device]
The default tun clone device is /dev/net/tun - some systems use
/dev/misc/net/tun instead
-b will result in brief output (just the device name)
