Configuring Cisco VPN for Mac using Mac Native Network Configuration

Open Network Preference

Add a new interface (use the + button)

 Select VPN

 Select Cisco IPSec

 Type your preferred name for this Interface

 Type Server Address (IP address or FQDN)

 Click the Advance Settings button and type in your Shared Secret (You may have to decrypt this if all you have is a .pcf file) use the following link to decrypt the pre-shared-key http://www.unix-ag.uni-kl.de/~massar/bin/cisco-decode