DD-WRT is a third party developed firmware released under the terms of the GPL for many ieee802.11a/b/g/h/n wireless routers based on a Broadcom or Atheros chip reference design. To see a full description of What is DD WRT, understand its features, it versions, I suggest this site:
As the peacock thread mentions, using the incorrect file is one of the worst things you can do. Fortunately, dd-wrt has simplified this immensely with their search format. Once you have identified your router accurately, you may be able to go straight to DD-WRT Downloads page (or secure How To Flash the WRT54G v8.0 and v8.2 Using v24 (including After about a minute, you can browse dd-wrt on your router at http://192.168.1.1. According to the Peacock thread, if the hard reset was done correctly, you will be … Step-by-step Checklist to Flash DD-WRT onto a Router
What I got then was a DD-WRT weird page with 3 text boxes with data masked with dots and a change password button. No color, just black on white. I think I got lucky here. I think here is where I was supposed to wait like the Peacock thread said (not sure) and did only because it didn't look right so I decided not to do anything for at least 1
[TSHOOT] DD-WRT Repeater & Repeater Bridge Issues! - YouTube
Technicus stultissimus: Cisco Valet routers and DD-WRT
May 04, 2009