OnionCat - A Tor-based anonymous VPN
OnionCat is software that allows users to tunnel TCP, UDP, ICMP or any other protocol through Tor. One can get the program from the main download directory which provides packages for different operative systems including the source code, all this under the GPLv3 license.
The used technology
OnionCat uses an IPv6 VPN-like TAP/TUN tunneling device.
See also
Official OnionCat information can be found at the OnionCat Primary Site and on the cYpherpunK blog. There are also some docs at OnionCat Docs and in the Trac wiki.
Through Tor at the Hidden Wiki it is possible to get OnionCat...