Setting up Ubuntu built-in VPN client

This guide applies to Ubuntu 22.04 and later.

Installing required packages

Run the following commands to update packages and install the L2TP plugin for NetworkManager:

sudo apt update
sudo apt install network-manager-l2tp network-manager-l2tp-gnome -y

Set up a new VPN connection

1. Open Settings and click "+" next to VPN to add a new VPN connection:

2. Select L2TP:

3. Get the connection details in the customer portal → Networks → VPN access → VPN to Global Private Network. Select the required location, then click Show.

4. In the VPN settings, open the Identity tab and enter the credentials from the customer portal:

1. • Name (e.g. GPN)

   • Gateway: VPN server

   • Username: Login

   • Password: Password

     Click the user icon in the Password field and select Store the password only for this user.

5. In the same window, click IPsec Settings, then:

   • Select Enable IPsec tunnel to L2TP host, then click Advanced:

1. • Enter the Pre-shared key (use the shared secret from the Customer Portal):

1. • Set Phase1 Algorithms to aes128-sha1-modp2048!

   • Set Phase2 Algorithms to aes128-sha1

   • Click OK.

6. Open the IPv4 tab:

   • Scroll down to Routes, turn off Automatic, and add a route as shown below:

1. • Click Add to save the setting.

7. Make sure the new VPN connection is turned on: