Hi crashdump,
Berne’s post in the following thread sheds some more light on the problem. It looks like the ifconfig command failing is a false alarm in this case, and the problem actually lies with the OpenSC driver:
https://www.sparklabs.com/forum/t/openvpn-crashes-on-osx-10-10-yosemite/891/1
Cheers,
James
