Find Network settings.
Select System Preferences from the Apple menu or from the Dock. Then, click Network.
Make a new connection.
In the list on the left, click [+] to make a new connection, and select these settings:
Then, click Create.
Set server and account info.
Select these settings to set the server and account info:
Then, click OK.
To adjust advanced settings, click Advanced.
For the VPN to work effectively, check the Send all traffic over VPN connection box.
You may opt to check the Use verbose logging option, which makes it easier to see what's happening if you have connection problems.
Voila! To connect to the VPN
Select the VPN configuration from the menu or in the connection list.
Then, click Connect.