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How to install DD-WRT on a Linksys router

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How to install DD-WRT on a Linksys router.

This guide is a tool to help you, if you choose to, flash a supported Linksys router with a third party firmware, DD-WRT.  testmy.net and the MODs are not responsible for any damage to the hardware, systems, or personal injury if you do attempt this!  ONLY ATTEMPT IF YOU ARE CONFIDENT IN YOUR SKILLS!

So you have a Linksys router and either are not happy about the performance or you want to put firmware that will turn it into, pretty much, a modern business class router.  (The functions are the same the hardware is different)  The developers of DD-WRT have just the solution for you.  It is a third party firmware that will turn it into one of the most advanced consumer level routers available.  However, there are some catches!  If you do decide to flash your router you will effectively end any type of warranty on the hardware.  There is also a possibility that the router can "brick", freeze not allowing you to boot the router.  This can be a serious problem, but if you follow the steps in this guide you should be able to avoid "bricking". 

What is this DD-WRT firmware you speak of?

Basically the Linksys router that you have in front of you is a small computer.  In fact it even uses Linux as its os. (This is a heavily modified version of Linux)  Due to some hardware hackers they were able to create firmware that can improve the performance and add some additional features that are not available from Linksys.  This is great if you want to link two wi-fi network together, need to have QoS on a smaller scale, and the transmit power adjustment.

Here is a list of some of the features that are included on this firmware:

        * 13 languages

        * 802.1x (EAP (Extensible Authentication Protocol) encapsulation over LANs)

        * Access Restrictions

        * Adhoc Mode

        * Afterburner

        * Client Isolation Mode

        * Client Mode (supports multiple connected clients)

        * Client Mode WPA

        * DHCP Forwarder (udhcp)

        * DHCP Server (udhcp or Dnsmasq)

        * DNS forwarder (Dnsmasq)

        * DMZ

        * Dynamic DNS (DynDNS, TZO, ZoneEdit)

        * Hotspot Portal (Chillispot)

        * IPv6 Support

        * JFFS2

        * MMC/SD Card Support

        * NTP client in a client-server basis

        * Port Triggering

        * Port Forwarding (max. 30 entries)

        * QoS Bandwidth Management (Optimize for Gaming and Services / Netmask / MAC / Ethernet Port Priority)

        * QoS L7 Packet Classifier l7-filter

        * PPTP VPN Server & Client

        * Ntop Remote Statistic

        * Syslog to remote server

        * RFlow/MACupd

        * Routing: Static entries and Gateway, BGP, OSPF & RIP2 via (BIRD)

        * Samba FS Automount

        * Rx/Tx Antenna (Select or Auto)

        * Show Status of Wireless Clients and WDS with System Uptime/Processor Utilization

        * Site Survey

        * SNMP

        * SSH server & client (dropbear)

        * Startup, Firewall, and Shutdown scripts

        * Static DHCP Assignment

        * Style (Changeable GUI; v.23)

        * Supports New Devices (WRT54G V3, V3.1, V4 and WRT54GS V2.1, V3, V4), however not WRT54G V5 as this uses another OS and has less memory.

        * Telnet server & client

        * Transmit Power Adjustment (0-251mW, default is 28mW)

        * UPnP

        * VLAN

        * Wake On Lan client (WOL)

        * WDS Connection Watchdog

        * WDS Repeater Mode

        * Wireless MAC Addresses Cloning

        * Wireless MAC filter

        * WMM (Wi-Fi MultiMedia QoS)

        * WPA over WDS

        * WPA/TKIP with AES

        * WPA2

        * Xbox Kaid (Kai Engine)

As you can see this is quite a long list. 

What do I have to have to do this?

You need one of these following routers. 

    *  Linksys WRT54G v1.0, v1.1, v2.0, v2.2, v3.0, v3.1, v4.0

          o NOT WRT54G v5.0

    * Linksys WRT54GL v1.0 (since the 2005-11-24 release of v23beta2)

    * Linksys WRT54GS v1.0, v1.1, v2.0, v2.1, v3.0, v4.0

          o NOT WRT54GS v5.0

    * Asus WL-500G deluxe (since the 2005-11-01 release of v23beta2)

    * Siemens SE505

    * Motorola WR850G (since the 2005-11-07 release of v23beta2)

    * Buffalo WHR-G54S

    * Buffalo WZR-RS-G54

    * Allnet all0277

    * Buffalo WBR-G54

    * Buffalo WLA-G54

As you can see there are other non-Linksys routers supported but for the most part this firmware is intended to be used on Linksys hardware.  As you can see there are some versions of the routers that are not supported.  Wonder why?  Linksys didn

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