Setup L2TP VPN in Mac OS X (10.5+)

Open the Network Control Panel

First, open the System Preferences by going to the Apple menu and choosing “System Preferences”. Or choose “System Preferences” from the Dock.

Next, click on the ‘Network’ system preference.

Make a new connection

In the ‘Network’ system preference there is a list of network connections on the left side. Click the ‘+’ icon (hilighted in red) to make a new connection for the VPN.

Set the Interface to ‘VPN’ and set the Connection Type and Name

When you click the ‘+’ icon, a new service sheet appears. Click on the ‘Interface’ popup menu to see the list of choices.

In the list, select ‘VPN’.

The ‘VPN Type’ should automatically be set to ‘L2TP over IPSec’, as seen in the picture below.

Next, set the Service Name to something you can use to identify the connection, i.e. "Office VPN" and click “Create”:

User Name, Password & Other Configurations

Now that you have a VPN connection, you’ll need to configure for it:
In “Server Address”, enter the remote server address (known to Cilix);
In “Account Name”, enter the domain and account name (known to Cilix);

If you select "Show VPN status in menu bar" you will be able to quickly connect/disconnect the VPN after it has been set up from the menu bar along the top of the screen.

Then, click on the ‘Authentication Settings…’ button. A new sheet drops down.

• Enter your windows password in “Password” field;
• In “Shared Secret” field enter the shared secret (known to Cilix);

  

  Advanced VPN settings

  Next, we’ll need to adjust some of the advanced VPN settings. To do that, first click the ‘Advanced…” button.
  For the VPN to work effectively, the “Send all traffic over VPN connection” checkbox should be checked. This will send ALL traffic through the office network though so may slow down some operations that don't need to go through the office network, i.e. general browsing or personal e-mail.

  

  Then click “OK” to finish advanced settings.

  Apply the settings

  To actually save the configuration, click the ‘Apply’ button in the bottom right of the window.

  Connect to VPN

  It’s done! Now you can use “Connect” button