The Securepoint Unified Threat Management (UTM) security solutions provide all important security applications (firewall, VPN gateway, virus scanner, spam filter, Web filter, IDS, etc.) within a corresponding server environment, to ensure smooth updates of all systems and to make the everyday usage of these systems successful and secure for companies. They are available as UTM hardware appliances, as virtual appliances, and as a pure software solution which can be installed on standard computer systems and may be adjusted according to individual requirements. Securepoint is Windows 7-ready and supports IKEv1 and IKEv2.
"Stupid Simple VPN" is a virtual private networking program contained as source in a 7.0KB tarball. It does not daemonize, and is intended to create a temporary VPN for emergency circumstances when you "just need a pipe" without the hassle of authentication, keys, encryption, and compression. It runs on OS X using the tuntaposx driver and Linux 2.6 using the native tuntap driver.