so yeah, the site has basically been down for a month. it's back up now.

Linksys WRT54GS v6

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Linksys WRT54GS v6.0

Manuf/OEM/ODM CyberTAN

FCC approval date: 03 April 2006
Country of manuf.: China
Serial Num. Prefix: CGN9

Local image
Linksys WRT54GS.png

Type: wireless router

FCC ID: Q87-WT54GV60

Power: 12 VDC, 0.5 A

CPU1: Broadcom BCM5352E (200 MHz)
FLA1: 2 MiB
2,097,152 B
16,384 Kib
2,048 KiB
16 Mib
0.00195 GiB
(Intel JS28F160 C3BD70 A6217291)
RAM1: 16 MiB
16,777,216 B
131,072 Kib
16,384 KiB
128 Mib
0.0156 GiB
(Samsung 619 K4S281632I-UC75)

Expansion IFs: none specified
JTAG: yes, 12-pin header, unpopulated
Serial: yes, 10-pin header, unpopulated, (115200,8,N,1)

WI1 chip1: Broadcom BCM5352E
WI1 chip2: Broadcom BCM2050
WI1 802dot11 protocols: bg
WI1 antenna connector: RP-TNC

ETH chip1: Broadcom BCM5352E
Switch: Broadcom BCM5352E
LAN speed: 10/100
LAN ports: 4
WAN speed: 10/100
WAN ports: 1

bg

Stock bootloader: BSP

Stock FW OS: VxWorks

Third party firmware supported: DD-WRT (List)

Default SSID: linksys (46 addl. devices)
Default IP address: 192.168.1.1
the IP 192.168.1.1 is used by 907 additional devices
of which 127 are Linksys devices
Default login user: blank
Default login password: admin
blank:admin credentials used by 246 additional devices
of which 131 are Linksys devices

802dot11 OUI: 00:16:B6 (9 E, 15 W, 2005), 00:18:39 (7 E, 18 W, 2005), 00:18:F8 (10 E, 15 W, 2006)
Ethernet OUI: 00:16:B6 (9 E, 15 W, 2005), 00:18:39 (7 E, 18 W, 2005), 00:18:F8 (10 E, 15 W, 2006)

 FCC ID
Linksys WRT54G v6Q87-WT54GV60
 CPU1 brandWI1 chip1 brandWI1 chip2 brand
Linksys WRT54GS v1.0BroadcomBroadcomBroadcom
Linksys WRT54GS v1.1BroadcomBroadcomBroadcom
Linksys WRT54GS v2.0BroadcomBroadcomBroadcom
Linksys WRT54GS v2.1BroadcomBroadcomBroadcom
Linksys WRT54GS v3BroadcomBroadcomBroadcom
Linksys WRT54GS v4BroadcomBroadcomBroadcom
Linksys WRT54GS v5.0BroadcomBroadcomBroadcom
Linksys WRT54GS v5.1BroadcomBroadcomBroadcom
Linksys WRT54GS v6BroadcomBroadcomBroadcom
Linksys WRT54GS v7.0BroadcomBroadcom
Linksys WRT54GS v7.2BroadcomBroadcom
For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

Wireless-G Broadband Router with SpeedBooster
Support page

WRT54GS v6.0 serial numbers appear to begin with CGN9.

Links of Interest[edit]

Flashing[edit]

Flashing DD-WRT[edit]

 

These instructions are for the WRT54gS version v.5, v.5.1 and v.6. NOTE THE S.

IN SPITE OF SOME OTHER INSTRUCTIONS ELSEWHERE, YOU REALLY NEED TO CREATE A CUSTOM VX Image for your router. If you don’t you will get a generic mac address on your router and a generic mac address will mean most ISP won’t let you connect to the internet. Here is how to do it properly

There is good information at the scorpiontek site: http://www.scorpiontek.org/portal/content/view/27/36

Download the zipped files in GV5Flash.zip

Or you can download the same file from me here: Gv5Flash.zip

  1. Read the peacock announcement found here: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486
  2. Do a Hard reset or 30/30/30 on the router according to note 1 of the peacock announcement (30/30/30)
  3. Set a static IP on your computer to 192.168.1.7
  4. Connect the lan cable from your computer to a LAN port of your router. Make sure your router is plugged in.
  5. Unzip the file you downloaded and place it in a location you can easily find on your computer
  6. Unzip the VXImgToolGui.zip file to the same folder as where you placed the other files you downloaded
  7. Delete the vxworks_prep_v03.bin file
  8. Go to this location and download the vxworks_prep_GS_v03.bin file: vxworks_prep_gs_v03.zip
  9. Click on the VXImgToolGui.exe program
    • Make sure the top button is on the right for WRT54GS, not the left for WRT54G.
    • Put the mac address from the bottom of your router in the box that says "Desired Mac Address"
    • Click on the three dots next to "output image" and save the file as My54gsImage.bin in the same folder as everything else is located.
  10. Power cycle the router (unplug the power from the router for 30 seconds and then plug it back in)
  11. Open your browser to 192.168.1.1 but putting that in the browser address window of your browser. You should open the linksys webgui and NOT a page that says Management Mode. If you see management mode, power cycle the router again.
  12. Enter "root" as the username and "admin" as the password
  13. Go to administration and firmware upgrade
  14. Navigate to the folder that you are using, and select vxworks_prep_GS_v03.bin
  15. Hit upgrade.
  16. Wait for FIVE FULL MINUTES. Go for a walk. Don't you TOUCH that router for FIVE MINUTES.
  17. When five full earth minutes have passed, power cycle the router
  18. Refresh your browser window. If you get a blank window, clear your browser cache. NOW you should be in the MANAGEMENT MODE window.
  19. Select the My54gImage.bin file that you created. Hit upgrade.
  20. Wait for the "Upgrade Success" message, and then WAIT FIVE FULL MINUTES again. Don't TOUCH your router.
  21. Start tftp.exe
    • Enter 192.168.1.1 as the address in the top box of tftp.exe
    • Leave the password blank
    • Select the 12548 Newd_Micro.bin firmware
    • Set retries to 99.
    • Power cycle the router
    • Count to 2
    • Hit upgrade
  22. When you get a success, wait FIVE FULL minutes.
  23. When you can access the dd-wrt webgui using a browser at 192.168.1.1, power cycle the router.
  24. When you can again access the dd-wrt webgui using a browser at 192.168.1.1, do another Hard reset or 30/30/30 on the router.
  25. Reset your computer ethernet connection to auto IP and auto DNS
  26. Check for recommended builds here.


Upgrading[edit]

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!

Reverting[edit]

Reverting to OEM Firmware from DD-WRT[edit]

To get back to VxWorks (default firmware) you need special instructions.

http://www.bitsum.com/openwiking/owbase/ow.asp?WRT54G5%5FCFE#h13
http://www.scorpiontek.org/portal/content/view/31/36/

JTAG-Serial Info[edit]

JTAG[edit]

JTAG Pinouts[edit]

 nTRST   1o o2	GND
   TDI   3o o4	GND
   TDO   5o o6	GND
   TMS   7o o8	GND
   TCK   9o o10	GND
 nSRST  11o o12  N/C

Using Universal JTAG Adapter

 white    1o o2	 black
   red    3o o4	 GND
  blue    5o o6	 GND
 green    7o o8	 GND
 yelow    9o o10  GND
 orange  11o o12  N/C
  • /noemw /nocwd switches required

DD-WRT JTAG Recovery[edit]

JTAG:

  1. Backup CFE x2 (Compare the files, they must match exactly or there is something wrong with your JTAG setup)
  2. Erase Wholeflash x2
  3. Flash CFE
  4. Unplug Power
  5. Unplug JTAG Cable

TFTP:

  1. Set Rig ip static 192.168.1.10
  2. Plug network cable from rig to port 1
  3. Get TFTP ready, server ip - 192.168.1.1, Password - blank, file - dd-wrt.v24_micro_generic.bin
  4. Plug in power
  5. As soon as windows says "connected" hit upgrade. May have to use a network hub to make sure windows is always connected.
  6. Hard Reset 30\30\30

Serial[edit]

Serial Pinouts[edit]

 VCC  1 o o 2  VCC
 TX1  3 o o 4  TX0
 RX1  5 o o 6  RX0
 N/C  7 o o 8  N/C
 GND  9 o o 10 GND
Hyper terminal Setup in Windows XP
In Windows XP, Click Start Button - All Programs - Accessories - 
   Communication - HyperTerminal
Enter a name for the connection, Click ok
Choose com port you adapter is plugged into, Click ok
Set:
 Bits per second = 115200
 Data Bits = 8
 Parity = none
 Stop bits = 1
 Flow control = none
Click ok
Click File - Save As, and select a place to save it to so you 
             don't have to enter the settings again.
Putty Setup in Windows XP
After installing putty, run it
 Serial line = The COM port your using for serial (ie. COM3)
 Speed = 115200
Click on Serial under Connection
 Serial line to connect to = same as above (Serial line)
 Speed (baud) = 115200
 Data bits = 8
 Stop bits = 1
 Parity = none
 Flow control = none
Click Session
 Enter a name for your connection under saved sessions
Click Save
Click Open

DD-WRT Serial Recovery[edit]

Modified Redhawk0 instructions

  1. Connect Serial cable
  2. Start one of the programs from above
  3. Get TFTP ready with file selected
  4. Use dd-wrt.v24_micro_generic.bin
  5. Connect power to the router
  6. start a rapid fire Cntl-C as you plug the router to power
  7. type "nvram erase" w/o quotes, hit enter
  8. type "flash -noheader : flash1.trx" w/o quotes, this starts the tftp daemon, hit enter
  9. but have tftp.exe ready
  10. Click go or start on TFTP
  11. give it 5 minutes after it finishes
  12. then power cycle....hard reset...then config
  13. when it stops spitting out txt in the serial consol....hit the enter key...you should get a login prompt...at that point, power cycle it, Hard reset or 30/30/30...then config
  14. you'll see it boot up

USB Info[edit]

NO USB

vlan Info[edit]

DD-WRT vlan Info[edit]

Confirmed the WRT54GS v6.0 supports port-based vlans via the GUI and nvram with build 14853 micro-plus-SSH.

WRT54GS v6.0's ports are mapped like this:

 1 2 3 4 | case labels
 3 2 1 0 | nvram port numbers

Defaults[edit]

root@DD-WRT:~# nvram show | grep vlan.ports
vlan1ports=4 5
vlan0ports=3 2 1 0 5*
size: 17327 bytes (15441 left)
root@DD-WRT:~# nvram show | grep port.vlans
port5vlans=0 1 16
port4vlans=0
port3vlans=0
port2vlans=0
port1vlans=0
port0vlans=1
size: 17327 bytes (15441 left)
root@DD-WRT:~# nvram show | grep vlan.hwname
vlan1hwname=et0
vlan0hwname=et0
size: 17327 bytes (15441 left)
root@DD-WRT:~# lsmod
Module                  Size  Used by
ip_nat_pptp             2192   0 (unused)
ip_conntrack_pptp       2524   1
ip_nat_proto_gre        1552   0 (unused)
ip_conntrack_proto_gre    2312   0 [ip_nat_pptp ip_conntrack_pptp]
switch-robo             5036   0 (unused)
switch-core             5984   0 [switch-robo]
root@DD-WRT:~# ls /proc/switch
eth0
root@DD-WRT:~# cat /proc/switch/eth0/vlan/0/ports
0       1       2       3       5t*
root@DD-WRT:~# cat /proc/switch/eth0/vlan/1/ports
4       5t
root@DD-WRT:~# cat /proc/switch/eth0/vlan/2/ports
4
root@DD-WRT:~#

Commands[edit]

root@DD-WRT:~# nvram set vlan1ports="3 4 5"
root@DD-WRT:~# nvram set vlan0ports="2 1 0 5*"
root@DD-WRT:~# nvram commit
root@DD-WRT:~# reboot

nvram[edit]

root@DD-WRT:~# nvram show | grep vlan.ports
vlan0ports=2 1 0 5*
vlan1ports=3 4 5
size: 17433 bytes (15335 left)
root@DD-WRT:~# nvram show | grep port.vlans
port5vlans=0 1 16
port3vlans=0
port1vlans=0
port4vlans=0
size: 17433 bytes (15335 left)
port2vlans=0
port0vlans=1
root@DD-WRT:~# nvram show | grep vlan.hwname
vlan1hwname=et0
size: 17433 bytes (15335 left)
vlan0hwname=et0
root@DD-WRT:~#

Pictures[edit]

Images
DarkShadow's Unit
FCCID Q87-WT54GV60

Notes[edit]

Hardware Modification[edit]

See Also[edit]