When I'm away I often connect to my VPN (running on a Windows 2008 Server) from my laptop or Android device, so that I can get access to my documents at home. I would like to share that VPN connection wirelessly with other devices - e.g. so that I can stream music and videos from my home server to the Chromecast that I travel with. Is there a free way of sharing a VPN connection wirelessly like this?