Linksys WRT54GS v1.1
Linksys WRT54GS v1.1
Manuf (OEM/ODM): CyberTAN
FCC approval date: 17 September 2004
Country of manuf.: China
S/N prefix: CGN2
Series: WRT54GS
Local image
Type: wireless router
FCC ID: Q87-WT54GV22
IC ID: 3839A-WT54GV22
Power: 12 VDC, 1 A
Connector type: barrel
CPU1: Broadcom BCM4712 (200 MHz)
FLA1: 8 MiB8,388,608 B <br />65,536 Kib <br />8,192 KiB <br />64 Mib <br />0.00781 GiB <br /> (Intel TE28F640J3C-120)
RAM1: 32 MiB33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br /> (Hynix HY5DU561622DT-J)
Expansion IFs: none specified
JTAG: yes, 12-pin header, unpopulated
Serial: yes, 10-pin header, unpopulated, (115200 8N1)
WI1 chip1: Broadcom BCM4712
WI1 chip2: Broadcom BCM2050
WI1 802dot11 protocols: bg
WI1 antenna connector: RP-TNC
ETH chip1: Broadcom BCM4712
Switch: Broadcom BCM5325E
LAN speed: 100M
LAN ports: 4
WAN speed: 100M
WAN ports: 1
bg
Stock bootloader: CFE
Stock FW OS: Linux 2.4
TPFirmware supported: DD-WRT • (List), OpenWrt • (List | Dev | DLs), Tomato • (List | DLs), TomatoUSB • (List | DLs), Broadband-Hamnet
Default SSID: Linksys (4 addl. devices)
Default IP address: 192.168.1.1
the IP 192.168.1.1 is used by 1304 additional devices
of which 154 are Linksys devices
Default login user: blank
Default login password: admin
blank:admin credentials used by 300 additional devices
of which 143 are Linksys devices
| FCC ID | |
|---|---|
| Linksys WRT54G v2.2 | Q87-WT54GV22 |
| Linksys WRT54G v3.0 | Q87-WT54GV22 |
| Linksys WRT54G v3.1 | Q87-WT54GV22 |
| Linksys WRT54GS v2.0 | Q87-WT54GV22 |
| Linksys WRT54GS v2.1 | Q87-WT54GV22 |
| CPU1 brand | WI1 chip1 brand | WI1 chip2 brand | |
|---|---|---|---|
| Linksys WRT54GS v1.0 | Broadcom | Broadcom | Broadcom |
| Linksys WRT54GS v1.1 | Broadcom | Broadcom | Broadcom |
| Linksys WRT54GS v2.0 | Broadcom | Broadcom | Broadcom |
| Linksys WRT54GS v2.1 | Broadcom | Broadcom | Broadcom |
| Linksys WRT54GS v3 | Broadcom | Broadcom | Broadcom |
| Linksys WRT54GS v4 | Broadcom | Broadcom | Broadcom |
| Linksys WRT54GS v5.0 | Broadcom | Broadcom | Broadcom |
| Linksys WRT54GS v5.1 | Broadcom | Broadcom | Broadcom |
| Linksys WRT54GS v6.0 | Broadcom | Broadcom | Broadcom |
| Linksys WRT54GS v7.0 | Broadcom | Broadcom | |
| Linksys WRT54GS v7.2 | Broadcom | Broadcom |
For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.
Wireless-G Broadband Router with SpeedBooster
Links of Interest
- Linksys WRT54G series on Wikipedia
- Linksys WRT54Gxx page on DD-WRT wiki
- Linksys WRT54GS v1.1 on DD-WRT forums
- Linksys WRT54G/GL/GS page on OpenWrt wiki
- WRT54GS v1.0/v2.0 MMC/SD Mod (Bulgarian)
Flashing
 | NOTE: During configuration or flashing a device, the only things that should be hooked to the device is the computer and power. |
Flashing DD-WRT
| NOTE: Resetting to factory defaults via reset button or mtd erase nvram is safe on this unit. |
| For DD-WRT, These units seems to run more stable on the VINT builds. |
 | WARNING: Requires K2.4 for DD-WRT, Do not flash anything else! |
NEWD or VINT
WRT54GS v1.1 uses the Broadcom BCM4712 chip rev 1 but since the "wl0_corerev" is 7
- (see NEWD or VINT for more info) WRT54GS v1.1 users should use standard NEWD builds
How to Flash
Make sure to get all the files you need first. Start with dd-wrt.v24_mini_generic.bin
- Perform a Hard reset or 30/30/30
- Upload dd-wrt through the firmware update page
- WAIT for at least five minutes before you continue! (longer is better) Give the router plenty of time to to boot.
- Perform a Hard reset or 30/30/30
- WAIT for at least five minutes before you continue! (longer is better) Give the router plenty of time to to boot.
- Power Cycle
- Open your browser to http://192.168.1.1. Configure to your liking. Enjoy.
- Check for recommended builds here.
Flashing OpenWrt
Flashing Tomato
Flashing Gargoyle
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.
- Check for recommended builds here first.
- 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.
- 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.
- Flash firmware. You can use the webgui except if you have a belkin router. (For belkin use tftp.exe to flash)
- Wait...at least three minutes. Lights should return to normal. See important2, below. Failing to wait is how most people brick their routers.
- Do a power cycle of the router. (Unplug the cord, count to 30 and plug it back in.)
- Wait for the lights to return to normal usually about 2 minutes.
- 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.
- 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
Reverting to OEM Firmware from DD-WRT
- Read the peacock announcement found here: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486
- Do a Hard reset or 30/30/30 on the router according to note 1 of the peacock announcement (30/30/30)
- Set a static IP on your computer to 192.168.1.7. Subnet mask should be 255.255.255.0.
- Connect the lan cable from your computer to a LAN port of your router. Make sure your router is plugged in. Nothing should be connected to your computer or the router except the LAN cable between them. Turn your firewall and any wireless computer connections OFF.
- Power cycle the router (unplug the power from the router for 30 seconds and then plug it back in)
- Open your browser to 192.168.1.1 by 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.
- Enter your username and password
- Go to administration and firmware upgrade
- Navigate to the folder that you are using, and select WRT54GSv3_4.71.4.001_fw.bin once you've unzipped it.
- Hit upgrade
- When you get a success, wait FIVE FULL minutes.
- When you can again access the Linksys webgui using a browser at 192.168.1.1, do another Hard reset or 30/30/30 on the router.
- Reset your computer Ethernet connection to auto IP and auto DNS
JTAG-Serial Info
JTAG
JTAG Pinouts
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
yellow 9o o10 GND
orange 11o o12 N/C
- /noemw switch required for flash
DD-WRT JTAG Recovery
JTAG:
- Backup CFE x2 (Compare the files, they must match exactly or there is something wrong with your JTAG setup)
- Erase Wholeflash x2
- Flash CFE
- Unplug Power
- Unplug JTAG Cable
TFTP:
- Set Rig ip static 192.168.1.10
- Plug network cable from rig to port 1
- Get TFTP ready, server ip - 192.168.1.1, Password - blank, file - dd-wrt.v24_mini_generic.bin
- Plug in power
- Wait for DMZ light to do a steady pulse, When it is lit on the 3rd time click upgrade. The DMZ light must be lit when you click upgrade.
- Hard Reset 30\30\30
Serial
Serial Pinouts
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
Serial Recovery
USB Info
NO USB
vlan Info
DD-WRT vlan Info
Confirmed the WRT54GS v1.1 supports port-based vlans via the GUI & nvram.
WRT54G v1.1's ports are mapped like this:
4 3 2 1 | case labels 3 2 1 0 | nvram port numbers
Defaults
root@DD-WRT:~# nvram show | grep vlan.ports vlan0ports=3 2 1 0 5* vlan1ports=4 5 size: 19244 bytes (13524 left) root@DD-WRT:~# nvram show | grep port.vlans port5vlans=0 1 16 port3vlans=0 port1vlans=0 size: 19244 bytes (13524 left) port4vlans=0 port2vlans=0 port0vlans=1 root@DD-WRT:~# nvram show | grep vlan.hwname vlan1hwname=et0 size: 19244 bytes (13524 left) vlan0hwname=et0 root@DD-WRT:~# lsmod Module Size Used by ip_nat_pptp 2560 0 (unused) ip_conntrack_pptp 3036 1 ip_nat_proto_gre 1664 0 (unused) ip_conntrack_proto_gre 2584 0 [ip_nat_pptp ip_conntrack_pptp] etherip 5104 0 (unused) switch-robo 5356 0 (unused) switch-core 6352 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
root@DD-WRT:~# nvram set vlan0ports="2 1 0 5*" root@DD-WRT:~# nvram set vlan1ports="3 4 5" root@DD-WRT:~# nvram commit root@DD-WRT:~# reboot
nvram
root@DD-WRT:~# nvram show | grep vlan.ports vlan0ports=2 1 0 5* vlan1ports=3 4 5 size: 19365 bytes (13403 left) root@DD-WRT:~# nvram show | grep port.vlans port5vlans=0 1 16 port3vlans=0 port1vlans=0 size: 19365 bytes (13403 left) port4vlans=0 port2vlans=0 port0vlans=1 root@DD-WRT:~# nvram show | grep vlan.hwname vlan1hwname=et0 size: 19365 bytes (13403 left) vlan0hwname=et0 root@DD-WRT:~#
GUI
root@DD-WRT:~# nvram show | grep vlan.ports vlan0ports=3 2 1 0 5* vlan1ports=4 5 size: 19348 bytes (13420 left) root@DD-WRT:~# nvram show | grep port.vlans port5vlans=0 1 16 port4vlans=1 18 19 port3vlans=0 18 19 port2vlans=0 18 19 port1vlans=0 18 19 port0vlans=1 18 19 size: 19348 bytes (13420 left) root@DD-WRT:~# nvram show | grep vlan.hwname vlan1hwname=et0 size: 19348 bytes (13420 left) vlan0hwname=et0 root@DD-WRT:~#
Pictures
Top/Front
Bottom
Board Top
Board Top2
Serial & JTAG Bottom
SD MOD
with Adapter: D12-1A
with Adapter: D12-1A
with Adapter: AM-1201000D41
with Adapter: AM-1201000D41
WRT54G v2.2
WRT54G v2.2
WRT54G v2.2
WRT54G v2.2
WRT54GS v1.1
WRT54GS v1.1
WRT54G v2.2
WRT54G v2.2
WRT54G v2.2
WRT54G v2.2
WRT54G v2.2
WRT54G v2.2
WRT54G v2.2
WRT54GS v1.1
WRT54GS v1.1
WRT54GS v1.1
WRT54GS v1.1
WRT54GS v1.1
WRT54GS v1.1
WRT54GS v1.1
Antennas
Antennas
Model: D12-1A
Model: D12-1A
Model: D12-1A
Model: D12-1A
Model: D12-1A
Model: D12-1A
Model: AM-1201000D41
Model: AM-1201000D41
Model: AM-1201000D41
Model: AM-1201000D41
Model: AM-1201000D41
Model: AM-1201000D41
Label1
Label2
Notes
DD-WRT Notes
[comment added 4/25/08 by WellingtonFelix] I installed the new version "dd-wrt.v24_mega_generic.bin" over default configuration of the version "dd-wrt.v23_vpn_generic.bin" and I had no problems.
[comment added 5/7/08 by Sapremias] Flashed dd-wrt.v24_mega_generic.bin directly from linksys web interface (version WRT54GSv3_4.71.4.001_fw.bin) without issue. -Sapremias
[comment added 10/5/08 by richwillal] I installed dd-wrt v24 sp1 Mega Vintage (dd-wrt.v24-9517_VINT_mega) from stock firmware with no issues. Standard process: 1) Reset router - reset for 30 secs w/ power on 2) Upload dd-wrt 3) Reset router - reset for 30 secs w/ power on 4) Disconnect/reconnect or ipconfig /renew
[comment added 04/02/09 by tribble222] I nearly bricked my router going directly from Linksys firmware to dd-wrt.v24-11296_VINT_STD.bin. Pinged on boot but tftp wouldn't work. Router didn't even respond to JTAG. Shorting pins 5&6 with the router unplugged somehow fixed everything. From there I was able to flash to mini, then back to std.
