DD-WRT
Description
DD-WRT is free Linux-based firmware for several wireless routers, most notably the Linksys WRT54G (including the WRT54GL and WRT54GS). It is licensed under the GNU General Public License version 2.
Many of DD-WRT's features are not included in typical router firmware. These features include support for the Kai network, daemon-based services, IPv6, Wireless Distribution System, RADIUS, advanced quality of service, radio output power control, overclocking capability, and software support for a Secure Digital Card hardware modification.
DD-WRT versions up to v22 were based on the Alchemy firmware from Sveasoft, which in turn is based on the original Linksys firmware. DD-WRT versions from v23 onwards, however, are almost completely rewritten. The Linux Kernel part is based on the OpenWrt Kernel, which started as a Linksys-based firmware but later changed to its own build framework. All of the firmwares are based on Linux, as are OpenWrt and Alchemy.
Through a partnership with Buffalo Technology, Buffalo will begin shipping routers pre-installed with a customized version of DD-WRT.