Configuring the built-in Cisco IPSec VPN client in Mac OSX, iPad and iPhone

Here’s how to configure OSX,iPad,iPhone to use an enterprise Cisco VPN concentrator (which is what you connect to from internet when you want to virtually join a company or school’s LAN).

Open System Preferences –> Network –> click the plus sign (Create a new service). On the iPhone, choose Settings –> General –> Network –> VPN –> Add VPN Configuration. On the Mac, chose VPN as the interface. Choose Cisco IPSec as the VPN type, and supply a service name as a description (an arbitrary name for the connection, whatever makes sense to you).
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