However, only the TUN driver is linked into the GENERIC kernel. To load the TAP driver, enter: kldload iftap See man rc (8) to find out how you can do this at boot time. The easiest way is to install OpenVPN from the FreeBSD ports system, the port includes a sample script to automatically load the TAP driver at boot-up time. #!/usr/bin/perl # this script switches between the TUN drivers needed for Cisco and the drivers # needed for OpenVPN on Mac OSX. # usage: 'vpnswitch cisco' or 'vpnswitch open' # written by Josh Berkus 2009. Freely offered to the public domain. # If your jurisdiction doesn't support that, then it is also available under the # BSD License. The following legacy packages can be used with previous Mac OS X versions. These reflect old versions current at the time of the respective Mac OS X versions. Since the base functionality provided by TunTap hasn't changed significantly over the years, these are mostly equivalent feature-wise. Version 20050515 for Mac OS X 10.3 (Panther). OpenVPN installation: unable to install TUN/TAP driver. Ask Question Asked 8 years, 4 months ago. Active 8 years, 4 months ago. Viewed 9k times.
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I have been using the tap-win32 driver with multicast in TUN mode. In its current version the tap-win32 driver blocks multicast packets in AdapterTransmit as it only allows unicast packets.
Openvpnusers Tun Tap Driver For Mac Os
I have written a patch for the driver to allow multicast packets through the driver which works for me which I wanted to share (although IGMPv2 doesn't seem to get through - IGMPv3 does...).
I hope someone find it useful and that some form of it might find its way into 2.2 (so I don't have to patch the driver when new versions are released )
