Install DD-WRT Firmware on Linksys WRT150N, WRT160N Wireless Routers

/* Posted May 30th, 2008 at 4:46pm */
/* Filed under Hardware, How-To, Mods, Networking */

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linksys wrt150n wireless router

Recently I bought a new Linksys WRT150N wireless router because I was fed up with my current one and because I had heard the famed DD-WRT firmware could be installed on it, effectively turning a cheap router into an expensive one. My old SMC router would drop connections about once a month and it really lacked the customizability that I required for my networking needs. For example, do you know how much of a pain it is to forward port ranges one port at a time with a 10 port limit? I also was not able to assign static IPs to my computers within the subnet (though to give my even older router credit, I could do this before).

I’ve documented the steps so you can follow along too should you decide one day that your standard router firmware just isn’t doing enough for you. Though these steps are for the Linksys WRT150N and WRT160N routers, they are pretty much applicable to any router (that can support DD-WRT that is).

  1. Find out if your router can support DD-WRT firmware or before you purchase a new router, check this list beforehand. It also helps to do a bit of research by reading user comments. I first found out the WRT150N could support DD-WRT by reading user comments on amazon and then later confirmed on newegg and confirmed the same for the WRT160N.
  2. To figure out which firmware version to download, you’ll need to know the chipset maker. For the WRT150N, it has a Broadcom chip so download the binary from the Broadcom folder. To find out which chipset your router has, figure it out from the supported devices list and use that to figure out whichi DD-WRT firmware to download. As of the time of this writing, I used the stable version of v24 firmware but this may change in the future. Always stick with the stable version, however.
  3. Since the WRT150N router is v1.1, it has a gimped flash memory size so you actually need to install the “mini generic” version first to remove this limitation, then the “std generic” (again this information was revealed by reading through user reviews on the product). Make sure you download those two binaries and save them somewhere on your computer. You will use them in the next steps.
  4. Connect the router directly to your computer and connect the power supply. Use any port but the blue Internet one. Do you see the picture above of that sticker taped over the ethernet ports on my router? Tear it off and laugh maniacally because you will not be following the instructions. Got a manual with a CD that you need to insert before you do anything? Toss it in the trash. These instructions are the only manual you’ll need.
  5. Access the router setup page by opening a browser and visiting http://192.168.1.1/. The default login and password for my new router was admin/admin. If that doesn’t work try logging in as admin without a password.
  6. Browse to the firmware upgrade page below
    • linksys firmware wrt150n
  7. Click browse to load the mini generic .bin to replace the stock firmware. Once the upgrade completes you will get a continue button. Wait 5 minutes before clicking continue. Why? I have no idea, it was revealed during my research which may have been old information. But I waited to be on the safe side and besides the Laker game was on.
  8. After the update successfully finishes, visit http://192.168.1.1/ again. Now that you have DD-WRT firmware installed, you need to login with default credentials as root/admin.
  9. Browse to the firmware upgrade page below
    • dd-wrt firmware wrt150n
  10. Click browse to load the std generic .bin you downloaded earlier and reinstall the firmware. This will allow you to get over the 3MB flash memory limit and get a real tool on that router.

A notable tweak with DD-WRT is the Tx Power which allows you to amplify the antenna strength for a better connection throughout your house. Make sure you change your password as now you and everyone else who’s read this post now knows that root/admin can get into the router setup screen. Also check out an earlier post on a wireless speedup hack.


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