How to control VPN client via commandline

Question

There must be a way to control the built-in VPN client in OS-X Snow Leopard, I simply can't find documentation about it. I want to be able to connect and disconnect while I'm ssh'd into my box remotely. Does anyone know how to do that?

Answer 1

save the following AppleScript to gfw.scpt

tell application "System Events"
    tell current location of network preferences
        set VPNservice to service "The Great Fire Wall" -- name of the VPN service
        if exists VPNservice then connect VPNservice
        set isConnected to connected of current configuration of VPNservice
        if isConnected then
            --- do something or nothing
        end if
    end tell
end tell

use osascript gfw.scpt to start it from terminal.