This tutorial shows how to setup a L2TP connection on Mac OS.
Step 1. Open System Preferences and click onto Network.
Step 2. Click the + button on the network connections panel.
Step 3. From the drop down menu select VPN followed by L2TP then click Create.
Step 5. Enter the server that you wish to connect (The Server address will be different, depending on the package you own.
Step 6. Click the Authentication Settings and enter your Password and for Shared Secred input: ibVPNsharedPSK! and then click OK.
Step 7. Click the Advanced button.
Step 8. Tick send all traffic over VPN connection, press OK.
Step 9. Click Apply.
Step 10. Leave the Show VPN status in menu bar box ticked and press Connect.
Step 11. You should be able to Connect/Disconnect to the server from the menu bar.
If you have any problems connecting to the ibVPN service please open a support ticket