Use DD-WRT to Create a VPN Server
One way to quickly setup a simple VPN server is to load DD-WRT onto your router, if it's compatible.
Virtual Private Networks (VPNs) aren't just for corporate networks, in fact you can use it to securely connect to your home or small office network when traveling or away to get access to your shares and computers. This Wi-Fi Planet how-to offers tips and advice on using DD-WRT onto your router to quickly setup a simple VPN server.
"In this article, we'll go through the process of setting up the Point-to-Point Tunneling Protocol (PPTP) VPN feature of DD-WRT. It's no secret that PPTP has vulnerabilities like many other computing protocols, however sometimes taking some risks is acceptable. In addition to being easier to configure and manage, PPTP is already supported in Windows.
"However, if you're dealing with customer data or other highly sensitive info you might want to go with a more secure VPN implementation. Maybe later in another tutorial we'll discuss how to setup OpenVPN in DD-WRT, which is more secure but a bit more complicated to setup. Plus users must download and configure a client utility in order to connect.