DD-WRT
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 DD-WRT's Web Interface |
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| Developer(s) | Sebastian Gottschall / NewMedia-NET |
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| Stable release | v24 SP1 (Build10020) / July 27, 2008 |
| Preview release | v24 preSP2 / July 22, 2009 |
| Operating system | Linux |
| Type | Router operating system |
| Website | www.dd-wrt.com |
DD-WRT is a Linux-based firmware for several wireless routers, most notably the Linksys WRT54G (including the WRT54GL and WRT54GS). Like other similar projects, DD-WRT is third-party firmware designed to replace the firmware that ships pre-installed on many commercial routers. This is done for a variety of reasons including the addition of features which are not typically included in a manufacturer's router firmware.
DD-WRT includes such features as 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.
Buffalo Technology and other companies have shipped routers pre-installed with a customized version of DD-WRT.[1][2]
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[edit] Code development
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 Linksys-based firmware but was later changed to its own build framework. All of the firmware is based on Linux, as are OpenWrt and Alchemy.
[edit] Releases
The major releases to date include:
DD-WRT v23 Service Pack 1 (SP1) was released on May 16, 2006. Much of the code was overhauled and rewritten during the development of this release, and many new features were added.
DD-WRT v23 Service Pack 2 (SP2) was released on September 14, 2006. The interface was overhauled, and some new features were added. Some additional router models are supported, with more planned.
DD-WRT v24 was released on May 18, 2008. It allows up to 16 virtual interfaces with different SSIDs and encryption protocols. There is support for some PowerPC, IXP425-based router boards, Atheros WiSOC, and X86-based systems. There is also limited support for routers with low flash memory (ex. WRT54Gv8 or WRT54GSv7).
DD-WRT v24 Service Pack 1 (SP1) was released on July 26, 2008. It contains an urgent DNS security fix for an issue in dnsmasq, site survey security fixes, longer passwords, and flexible OpenVPN configurations. It also adds support for new hardware, including WRT300 v1.1, WRT310N, WRT600N, Tonze AP42X Pronghorn SBC, Ubiquiti LSX and Netgear, Belkin, and USR devices.
DD-WRT v24 Service Pack 2 (SP2) is currently in development.
[edit] Features
List of features in all versions:[3]
| Micro (2 MB) |
Mini | Nokaid | Standard | VOIP | VPN* | Mega** (8 MB) |
|
|---|---|---|---|---|---|---|---|
| Access restrictions | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| AnchorFree | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Bandwidth monitoring | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| ChilliSpot | Yes | Yes | Yes | ||||
| Dynamic DNS | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| HTTPS support for web management | Yes | Yes | Yes | Yes | Yes | ||
| IPv6*** | Yes | Yes | Yes | Yes | Yes | ||
| JFFS2* | Yes | Yes | Yes | Yes | No[4] | Yes | |
| XLink Kai (kaid) | Yes | Yes | |||||
| MMC/SD card support | Yes | Yes | Yes | Yes | Yes | ||
| NoCat | Yes | Yes | Yes | Yes | Yes | ||
| OpenVPN | Yes | Yes | |||||
| PPTP/PPTP Client | Yes | Yes | Yes | Yes | Yes | Yes | |
| Quality of service | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| IPv6 Router Advertisement Daemon (radvd) | Yes | Yes | Yes | Yes | Yes | Yes | |
| Linking routers/repeater/mBSSID | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| RFlow (traffic information) | Yes | Yes | Yes | Yes | Yes | ||
| Samba/CIFS client | Yes | Yes | Yes | Yes | Yes | ||
| Milkfish SIP router | Yes | Yes | |||||
| SNMP | Yes | Yes | Yes | Yes | Yes | ||
| SPI firewall/IPtables | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| SSHd | Yes | Yes | Yes | Yes | Yes | Yes | |
| Telnetd | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Transmit (Tx) power adjustment | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| UPnP | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Wake-on-LAN | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| WPA/WPA2 personal/enterprise | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| Wiviz | Yes | Yes | Yes | Yes | Yes | Yes |
| * | Smaller VPN JFFS builds are available for 4MB units: downloads/others/eko. |
| ** | Only on DD-WRT v24 (8MB+ flash required). |
| *** | IPv6-related features do not work by default in DD-WRT v24.[5] |
| Note: | It is possible to build a custom firmware package with the desired feature-set, working within the limitations of available ROM.[6] |
| ROM Requirements: | • All versions require 4 MB of flash unless noted otherwise. |
| • Micro+ requires 2 MB of flash + 128K CFE. |
[edit] Security issues
A remote command execution vulnerability in DD-WRT's HTTPd server was found by a Bulgarian hacker on July 21, 2009, and was patched within a few hours after being documented on milw0rm.[7] However, all prior DD-WRT versions (before build 12533 of v24 preSP2) remain vulnerable to this exploit.
[edit] See also
[edit] References
- ^ "Buffalo Partners with NewMedia-NET" (Press release). 23 October 2007. http://www.buffalo-technology.com/press/releases/buffalo-partners-with-newmedia-net/. Retrieved 14 November 2007.
- ^ Gottschall, Sebastian [BrainSlayer] (29 October 2007). "Congratulations on the partnership w/Buffalo!". http://www.dd-wrt.com/phpBB2/viewtopic.php?p=121822&highlight=#121822. Retrieved 14 November 2007.
- ^ Feature Matrix, (by firmware version).
- ^ JFFS2 support removed from OpenVPN builds.
- ^ IPv6 on v24 - DD-WRT Wiki
- ^ Firmware Modification Kit gives the user the ability to make changes to a firmware image without recompiling the firmware sources.
- ^ "http://svn.dd-wrt.com:8000/ticket/1167". http://svn.dd-wrt.com:8000/ticket/1167.
[edit] External links
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Wikibooks has more on the topic of |
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Wikimedia Commons has media related to: DD-WRT |
- DD-WRT Wiki
- Hack Attack: Turn your $60 router into a $600 router
- Turn Your Home Router Into a Super-Powered Router with DD-WRT
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