Philip to go in more explaination of VPN servers or VPN technology at a high level. think of vPN as a box within a box. The life cycle is below which should explain it. 1. Client PC breaks up the data into datagrams (box1). 2. When the datagram (box1) is about to be sent across the internet, the VPN software puts Box1 into another box for this example called box2. Either some or all the details are hidden from view from the public. 3. The box2 is sent across the internet to your VPN Server. 4. The VPN open box2 and takes out box1 (original datagram). 5. Your router inspected the address where box1 (datagram) is meant to go to. 6. If the address is known about, then it will direct the packet to the right location. 7. Otherwise it is destoryed and a message is sent back to the client. The above process is repeated when the data is sent back to the client. I have kept away from explaining in networking terms because I don't know your level of network knowledge. As long as the network traffic knows how to get to a server, then the data will get there. What your server does with it is a different story. Of course you have to take into account of any other deveices befor eit gets to server stopping the traffic from getting to the destination. If the last paragraph sounds like mud, well that is networking for you. Sean