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DD-WRT is Linux-based firmware for wireless routers and access points. Originally designed for the Linksys WRT54G series, it now runs on a wide variety of models. DD-WRT is one of a handful of third-party firmware projects designed to replace manufacturer's original firmware with custom firmware offering additional features or functionality.

DD-WRT's Web interface
DD-WRT's Web interface
Developer(s)Sebastian Gottschall / NewMedia-NET
Initial release22 January 2005; 14 years ago (2005-01-22)[1]
Stable release
v24 SP1 (Build 10020) / 27 July 2008; 11 years ago (2008-07-27)
Preview release
Constantly being updated in beta form in forums or at
Repository Edit this at Wikidata
TypeRouter operating system
LicenseVarious proprietary and free software
DD-WRT was originally designed for the Linksys WRT54G series, but now runs on a variety of routers.

Sebastian Gottschall, a.k.a. "BrainSlayer", is the founder and primary maintainer of the DD-WRT project.[2] The letters "DD" in the project name are the German license-plate letters for vehicles from Dresden, where the development team lived.[3] The remainder of the name was taken from the Linksys WRT54G model router, a home router popular in 2002–2004. "WRT", also used by the OpenWrt router firmware project, comes from the generic abbreviation for "Wireless Receiver / Transmitter", which may have been the original Linksys meaning.

Buffalo Technology and other companies have shipped routers with factory-installed, customized versions of DD-WRT.[4][5] In January 2016, Linksys started to offer DD-WRT firmware for their routers.[6]


Among the standard features common to all versions of DD-WRT are: access control, bandwidth monitoring, quality of service, WPA/WPA2 (personal and enterprise), the iptables firewall, Universal Plug and Play, Wake-on-LAN, Dynamic DNS, AnchorFree VPN, wireless access point configuration, multiple SSIDs, overclocking, transmission power control, and the ability to link routers. A telnet daemon is also standard. A few examples of optional features are a wireless distribution system and support for RADIUS and XLink Kai networks. DD-WRT's support for OpenVPN, WireGuard enables both protocols to pass all network traffic through a virtual private network.[7][8]

Version-specific features
Feature Micro
(2 MB)[a]
(4 MB)
(4 MB)
(4 MB)
(4 MB)
(4 MB)[b]
(8 MB)
Web management over HTTPS  
XLink Kai daemon    
MMC & SD card support  
PPTP client  
RFlow (traffic information)  
Samba/CIFS client  
Milkfish SIP router    
Secure Shell daemon  
  1. ^ "Micro" builds additionally require 128 kB of Common Firmware Environment storage
  2. ^ a b Smaller VPN JFFS builds are available for 4 MB units.
  3. ^ Only on DD-WRT v24

It is also possible to build a bespoke firmware package.[9][10]

Version historyEdit

Version Release date Changes Refs
Old version, no longer supported: 16 22 January 2005 Initial release. Created as a branch of Sveasoft Alchemy, which, in turn, is based on the Linksys WRT54G firmware [11]
Old version, no longer supported: 22 25 July 2005 ? [12]
Old version, no longer supported: 23 25 December 2005 Replaced the Alchemy kernel with the OpenWrt kernel [13]
Old version, no longer supported: 23 SP 1 16 May 2006 In this service pack, much of the code was overhauled and rewritten during the development of this release; many new features were added. [citation needed]
Old version, no longer supported: 23 SP 2 14 September 2006 The interface was overhauled, and some new features were added. Some additional router models are supported. [citation needed]
Old version, no longer supported: 24 18 May 2008 Allows up to 16 virtual interfaces with different SSIDs and encryption protocols. It can run on some PowerPC, IXP425-based router boards, Atheros WiSOC, and X86-based systems. It can also run to some extent on routers with low flash memory (ex. WRT54Gv8 or WRT54GSv7) [citation needed]
Older version, yet still supported: 24 SP 1 26 July 2008 Critical DNS security fix for an issue in dnsmasq, site survey security fixes, longer passwords, and flexible OpenVPN configurations. It can also run on additional hardware, including WRT300 v1.1, WRT310N, WRT600N, Tonze AP42X Pronghorn SBC, Ubiquiti LSX and Netgear, Belkin, and USR devices. [citation needed]
Latest preview version of a future release: Beta Varies Since 2010, the DD-WRT developers have frequently published beta builds for various routers. Some builds are considered very stable, while others do not work at all. In January 2018 WireGuard was made available for routers with 8 MB or more flash and has been updated regularly by BrainSlayer [14]

Router hardware supportedEdit

DD-WRT supports many different router models, both new and obsolete. The project maintains a full list of currently supported models[15] and known incompatible devices.[16]

See alsoEdit


  1. ^ "Alchemy branch v16 by BrainSlayer". 22 January 2005. Retrieved 29 July 2012.
  2. ^ "About DD-WRT |". Retrieved 1 May 2017.
  3. ^ "What is DD-WRT?". Retrieved 2 April 2016.
  4. ^ "Buffalo Partners with NewMedia-NET" (Press release). 23 October 2007. Archived from the original on 16 January 2008. Retrieved 14 November 2007.
  5. ^ Gottschall, Sebastian [BrainSlayer] (29 October 2007). "Congratulations on the partnership w/Buffalo!". Retrieved 14 November 2007.
  6. ^ DD-WRT Linux firmware comes to Linksys routers on by Steven J. Vaughan-Nichols (January 5, 2016)
  7. ^ "DD-WRT Products, Pros & Cons". Tenwitch. Retrieved 19 February 2017.
  8. ^ "All-in-One Guide to Choose and Set Up VPN On a DD-WRT Router". Retrieved 3 February 2018.
  9. ^ Firmware Modification Kit gives the user the ability to make changes to a firmware image without recompiling the firmware sources.
  10. ^ "Best Router for DD-WRT firmware". HeatonC. Retrieved 19 December 2017.
  11. ^ "Alchemy branch v16 by BrainSlayer". 22 January 2005. Retrieved 29 July 2012.
  12. ^ "Index of /stable/dd-wrt.v22/". 25 July 2005. Retrieved 29 July 2012.
  13. ^ "Index of /stable/dd-wrt.v23/". 25 December 2005. Retrieved 29 July 2012.
  14. ^ "". Retrieved 6 January 2018.
  15. ^ "Supported Devices - DD-WRT Wiki". Retrieved 25 January 2018.
  16. ^ "Known incompatible devices - DD-WRT Wiki". Retrieved 25 January 2018.

External linksEdit