View Source tunctl_darwin (tunctl v0.3.5)
tunctl behaviour for Mac OS X.
Requires the tun/tap driver from:
http://tuntaposx.sourceforge.net/
Allow the user running tunctl to call ifconfig using sudo:
sudo visudo
youruser ALL=NOPASSWD: /sbin/ifconfig tap*
youruser ALL=NOPASSWD: /sbin/ifconfig tun*