x509 authentication with VPN Tracker on Mac OS X for road-warriors clients

OpenBSD configuration files:

• /etc/isakmpd/isakmpd.conf
• /etc/isakmpd/isakmpd.policy

VPN Tracker configuration screenshots:

• Main window
• Phase 1 configuration
• Phase 1 Proposal configuration
• Phase 2 configuration
• x509 certificates configuration

Contributed by Xavier Santolaria.