Open VPN

A full-featured SSL VPN solution which can accomodate a wide range of configurations, including remote access, site-to-site VPNs, WiFi security, and enterprise-scale remote access solutions with load balancing, failover, and fine-grained access-controls

http://openvpn.net/∞

SSL-Explorer

An open-source, browser-based SSL VPN solution.

This unique remote access solution provides users and businesses alike with a means of securely accessing network resources from outside the network perimeter using only a standard web browser.

http://3sp.com/showSslExplorer.do∞