I'm not familiar with an automatic vpn. Do you have 2 hardware devices establishing a vpn between themselves or are you using a hardware IPSec/PPTP/whatever router and connecting your client to that, or are you using IPSec from Windows at both ends or ???
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1