For Windows user, Computer Networking Help has written a quick tutorial to create a VPN termination point. This is pretty handy to implement at home when you need to access your files in your home computer at the office:
… I’ve had numerous members here email me about writing an article on setting up a secure, inexpensive, home VPN solution that they could use to share files between their home and office computers while they were at work. After speaking with many different people on the subject, I decided that most of them were running Windows XP for their operating systems and Linksys brand routers. That being said the following article is based on the above specifications and will involve no extra cost in setting up the VPN connection.
VPNs or Virtual Private Networks continue to increase in popularity due to the rise of inexpensive, high capacity Internet connectivity. Therefore lots of people are now using secure VPNs in order to connect to their home based networks as well as their office networks….
Configuring a free VPN solution in your home