Open your network settings.
Configure as following.
Click on "Setup a new connection or network".
Click on "Connect to a workplace".
Click on "User my internet connection (VPN)".
Fill the blanks as shown below then click on "Create".
Open Network Connections again.
Right click on the connection you just created then click "Properties".
Fill the blanks as shown below and then click "Advanced Settings".
User "veripn" as pre-shared key.
You can now connect to VPN.