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Configure and Use L2TP on Mac OS X

Mac OS X includes a native VPN client. You can use the Mac OS X VPN client to make an L2TP VPN connection to a Firebox.

Configure the L2TP Network Settings

To prepare a Mac OS X device to make an L2TP VPN connection, you must configure the L2TP connection in the network settings.

  1. In the Apple menu, select System Preferences.
  2. Click the Network icon.
  3. Click "+" icon in the lower left corner to create a new network interface.
  4. In the Interface drop-down list, select VPN.
  5. From the VPN Type drop-down list, select L2TP over IPSec.
  6. In the Service Name text box, type a name for this VPN connection, such as "L2TP XTM".
  7. Click Create.
    The settings for the VPN connection appear.

You can use the default configuration, or you can create your own configuration. These steps use the default configuration.

  1. In the Server Address text box, type the external IP address of the Firebox to connect to.
  2. In the Account Name text box, type your user name as it appears in the authentication server that you use for Mobile VPN with L2TP user authentication.
  3. Click Authentication Settings.
  4. In the Password text box, type the password of the user.
  5. If Mobile VPN with L2TP on the Firebox is configured to use a pre-shared key as the IPSec credential method:
    • Select Shared Secret.
    • In the Shared Secret text box, type the pre-shared key for this tunnel. The pre-shared key must match the pre-shared key configured on the Firebox Mobile VPN with L2TP IPSec settings.
  6. If Mobile VPN with L2TP on the Firebox is configured to use a certificate as the IPSec credential method:
    • Select Certificate.
    • Click Select to select the certificate to use.
    • Make sure you have imported the certificate to the client device. For more information, see Import a Certificate on a Client Device.
  7. Click Apply to save the configuration changes.

Start the L2TP Connection

The name of the VPN connection is the service name you used when you configured the L2TP connection on the client computer. The user name and password refers to one of the users you added to the L2TP-Users group. For more information, see About L2TP User Authentication.

To start the L2TP connection:

  1. In the Apple menu, select System Preferences.
  2. Click the Network icon.
  3. Select the VPN connection you created in the Network dialog box.
  4. Click Connect.

After the VPN connection is started, the Connect button changes to Disconnect.

If you want to connect to the non-default authentication server, specify the authentication server in the Account Name text box. For more information, see Connect from an L2TP VPN Client.

See Also

Mobile VPN with L2TP

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