Linksys WRT300N v1.0

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multiple revisions of this device, use caution
bgn (N300)
Wireless-N Broadband Router
Linksys WRT300N 02.jpg
Wikipedia
InfoDepot Wiki
WikiDevi.wi-cat.ru
3rd Party Firmware
dd-wrt
OpenWrt
Tomato any flavor
Gargoyle
Status Unknown
Platform
BrandModelRev
Linksys WRT300N v1.0
Serial number prefix
CNP0
FCC ID
IC ID
Type
wireless router
Series
WRT300N
CPU1
Broadcom BCM4704
CPU1 Type
MIPS32 R1
CPU1 Speed
264 MHz
Flash1 Chip
Intel JS28F320C3BD70
Flash1 Size
4 MiB4,194,304 B <br />32,768 Kib <br />4,096 KiB <br />32 Mib <br />0.00391 GiB <br /> (Parallel)
RAM1 Size
32 MiB33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br />
RAM1 Chip
SK hynix HY5DU281622ETP-J x 2
nvram Size
32K
ETH chip1
Broadcom BCM4704
Switch
Broadcom BCM5325F
Ethernet Port Count
1-100MbE-WAN
4-100MbE-LAN
Wired Standard
IEEE 802.3/3u

802dot11 OUI: 00:18:39 (8 E, 17 W), 00:18:F8 (10 E, 14 W), 00:1A:70 (9 E, 15 W)
Ethernet OUI: 00:18:39 (8 E, 17 W), 00:18:F8 (10 E, 14 W), 00:1A:70 (9 E, 15 W)

Stock bootloader
CFE
Expansion IF types
PCMCIA (32-bit)
PCMCIA slots
1
Power
12 VDC, 1 A
Connector type
barrel
Serial Port (UART)
yes
JTAG Port
yes
Other

Default IP address: 192.168.1.1
the IP 192.168.1.1 is used by 1311 additional devices
of which 153 are Linksys devices
Default login user: blank
Default login password: admin
blank:admin credentials used by 267 additional devices
of which 134 are Linksys devices

Manuf/OEM/ODM
3rd Party Firmware Support
DD-WRT • (List)
, OpenWrt • (List | Dev | DLs)
, TomatoUSB • (List | DLs)
Retail
Availability End of Life
FCC approval date 17 April 2006
Country of manuf China
Physical
Dimensions
7.4" x 6.9" x 1.6"
Radio 1
Radio1 module
Radio1 module IF
PCMCIA (32-bit)
Chip1
Broadcom BCM4321
Chip2
Broadcom BCM2055
Wireless interface OUI
00:18:39, 00:18:F8 ,00:1A:70
Antenna Connector Type
External Fixed
MIMO status
2x2:2
Wireless Standard
IEEE 802.11b/g/n
802.11n
up to 300 Mbps
802.11g
up to 54 Mbps
802.11b
up to 11 Mbps
WiFi Operating Frequency
2.4 GHz
Radio cor_rev
11
 FCC ID
CyberTAN WE801-BQDS-BRCM1023
Q87-WPC300NV1
Q87-WRT300NV1
Linksys WPC300N v1Q87-WPC300NV1
Q87-WRT300NV1
 CPU1 brandRadio1 chip1 brandRadio1 chip2 brand
Linksys WRT300N v1.0BroadcomBroadcomBroadcom
Linksys WRT300N v1.1BroadcomBroadcomBroadcom
Linksys WRT300N v2Intel XScaleAtherosAtheros

For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

For a list of all currently documented Linksys device with specifications, see Linksys.

300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = N300 class

Overview

WRT300N v1.0 serial numbers appear to start with CNP0.

Probable 00:18:39 OUI for both interfaces, but this could potentially be incorrect (00:18:39 is an OUI on some labels anyway)

Links of Interest

Flashing

Flashing dd-wrt

Supported by dd-wrt as of = v24 - 06/08

  1. Download DD-WRT v24 Mini from this link: ftp://dd-wrt.com/others/eko/BrainSlayer-V24-preSP2/older/09-08-09-r12874/broadcom/dd-wrt.v24_mini_wrt300n.bin
  2. Read the peacock announcement found here: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486
  3. Do a proper HARD reset on your router.
  4. Set your computer to a static IP address of 192.168.1.7 Subnet mask to 255.255.255.0
  5. Plug a lan cable from your computer to a LAN port on the router. Disable any wireless on your computer
  6. Open your web browser to 192.168.1.1
  7. Find any settings you might want to keep and copy them down or cut and paste them(e.g. MAC addresses for MAC filtering)
  8. Go to Administration, Firmware upgrade, in the linksys webgui.
  9. Browse to the dd-wrt.v24_mini_wrt300n.bin you downloaded, and hit upgrade.
  10. Wait until you can access the dd-wrt webgui at 192.168.1.1
  11. Power cycle the router
  12. Wait until you can access the dd-wrt webgui at 192.168.1.1
  13. Do ANOTHER hard reset on the router.
  14. Go in and set your user name and password by carefully typing each of them in.
  15. Set your computer to auto IP and auto DNS.

Flashing OpenWrt

On the OpenWrt ToH (techdata entry)
On the OpenWrt Wiki
Support started version: 7.06
Current supported version: 19.07.7

Please insert instructions here

Flashing Tomato

TomatoUSB K2.4 Support = Yes (NoUSB-Std (4MB flash) only)

Please insert instructions here

Upgrading

Updating DD-WRT

If dd-wrt is already on the router follow these instructions. If stock firmware is on the router follow the flashing instructions.

  1. Check for recommended builds here first.
  2. Set your computer to a static IP of 192.168.1.7. (or to whatever subnet the router is on) Disable all firewalls and security. Disable wireless on your computer and only have the router connected to the flashing computer by the ethernet cable between the two.
  3. Hard reset or 30/30/30 (If the router supports it, if not, reset to defults in the GUI) prior to flashing. Wait. Check for password page on re-login and change password.
  4. Flash firmware. You can use the webgui except if you have a belkin router. (For belkin use tftp.exe to flash)
  5. Wait...at least three minutes. Lights should return to normal. See important2, below. Failing to wait is how most people brick their routers.
  6. Do a power cycle of the router. (Unplug the cord, count to 30 and plug it back in.)
  7. Wait for the lights to return to normal usually about 2 minutes.
  8. Hard reset or 30/30/30 again (If the router supports it, if not, reset to defults in the GUI). Wait. Check for the password page and re-login to change the password. Then you can reconfigure your settings manually.
  9. Once configured set your computer back to autoIP and autoDNS.

Important1: This Hard reset or 30/30/30 works fine for Asus router, but you do have to power cycle after the reset.

Important2: After you flash the firmware, and before you do the hard reset, the router will be building some nvram settings. YOU MUST WAIT FOR THIS TO FINISH PRIOR TO DOING ANYTHING WITH THE ROUTER INCLUDING A HARD RESET. Usually, you can tell when this process is completed by the WAN light coming on, but it does take several minutes. Go have a beer. There are starting to be more and more people who BRICK their routers by not waiting until the nvram is rebuilt, PRIOR to doing a hard reset. YOU NEED TO WAIT!

Pictures

FCCID Q87-WRT300NV1

Notes

Debricking information

Here is a thread which contains a JTAG method for debricking your WRT300N v1 and v1.1 model.

For further information about JTAG please see the wiki entry entitled TJTAG.

Post-Installation

Once you have completed all of the steps above, your router is already set and ready to be used, configured, etc.

Known Issues
  • Versions 1.0 and 2.0 of this router have 4MB flash, so JFFS will not work with the standard distros. Version 1.1 has 8MB of flash so may (untested) work with JFFS
  • I use static DHCP for my network and found that this page had strange errors (incorrect labels, missing radio buttons). To fix this, navigate to Administration -> Factory Defaults and then restore the factory defaults to the router.
    • Relatively same issue with MAC filtering where the word "error" replaced labels.
  • When editing settings on the Administration page for the first time (after flash or hard reset), make sure that you change the interface language dropdown to Simplified Chinese, then back to English. Otherwise the router will end up in Simplified Chinese until you either change it, or hard reset the router.
  • If you did not hard reset the router before you installed DD-WRT, then the login information is as follows:
    • Username: root
    • Password: Whatever your password was
    • Hard reset the router if you cannot figure out the login information. Refer here for the default login information.
  • Occasionally after changing a setting, the router will lose its connection to the internet. All you need to do to restore the connection is navigate to the Administration page and scroll to the bottom and hit the Reboot Router button.
    • I recommend that you change all the settings you want to change then reboot the router regardless.
Security LED
  • The security LED will not light up after flashing on version 1.1. To fix this, go to Administration > Commands, type in the following and then click Save Startup:
while sleep 1; do if [ `nvram get wl0_security_mode` = "disabled" ]; then gpio enable 3; else gpio disable 3; fi; done &

As posted by osmosis

On the wiki for 150N is posted

root@DD-WRT:~# gpio enable 5 #(SECURITY LED - off - green)
root@DD-WRT:~# gpio disable 5 #(SECURITY LED - on - green)
root@DD-WRT:~# gpio disable 3 #(SECURITY LED - on - amber)
root@DD-WRT:~# gpio enable 3 #(SECURITY LED - off - amber)


this applies for the WRT300Nv1.0 as well so to incorporate the amber into the mix as not secure: Also confirmed working on the WRT300N v1.1 WifiShadow 02:40, October 1, 2010 (UTC)

while sleep 1; do
if [ `nvram get wl0_security_mode` = "disabled" ]; then
gpio enable 5
gpio disable 3
else
gpio enable 3
gpio disable 5
fi
done &