Linksys WRT54G v5

Wikidevi Notes
WRT54G v5.0 serial numbers begin with CDFB. WRT54G v5.1 serial numbers should begin with CDFC.

The stock firmware on these devices contains VxWorks, not Linux. See the Linksys v5.0, v5.1, and v6.0 page on the DD-WRT wiki for instructions on flashing the units with DD-WRT.

"3763-14140404R" is silkscreened on the board.

OD/ID measurements may not be exact

Links of Interest

 * [[media:Linksys WRT54G-8.0 Datasheet.pdf|Datasheet.pdf]]
 * [[media:Linksys WRT54G-1.1 Quick Install.pdf|Quick Install.pdf]]
 * [[media:Linksys WRT54G-User Guide.pdf|User Guide.pdf]]
 * Version 5 And 6 Router Information
 * WRT54G V5 Flash Memory Upgrade Success!

Reverting to OEM Firmware from DD-WRT
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 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 yelow   9o o10  GND orange 11o o12  N/C

DD-WRT JTAG Recovery

 * /noemw /nocwd switches required


 * 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 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

DD-WRT Serial Recovery
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
No USB

DD-WRT vlan Info

 * DD-WRT:VLAN Support

Confirmed the WRT54G v5.0 supports port-based vlans via the GUI.

Confirmed the WRT54G v5.0 supports port-based vlans via nvram with micro-plus-SSH.

WRT54G v5.0's ports are mapped like this:

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

Defaults
root@DD-WRT:~# nvram show | grep vlan.ports vlan1ports=4 5 vlan0ports=3 2 1 0 5* size: 19130 bytes (13638 left) root@DD-WRT:~# nvram show | grep port.vlans port5vlans=0 1 16 port4vlans=0 port3vlans=0 port2vlans=0 port1vlans=0 port0vlans=1 size: 19130 bytes (13638 left) root@DD-WRT:~# nvram show | grep vlan.hwname vlan1hwname=et0 vlan0hwname=et0 size: 19130 bytes (13638 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 I root@DD-WRT:~#

Commands
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
root@DD-WRT:~# nvram show | grep vlan.ports vlan0ports=2 1 0 5* size: 19350 bytes (13418 left) vlan1ports=3 4 5 root@DD-WRT:~# nvram show | grep port.vlans port5vlans=0 1 16 port3vlans=0 port1vlans=0 size: 19350 bytes (13418 left) port4vlans=0 port2vlans=0 port0vlans=1 root@DD-WRT:~# nvram show | grep vlan.hwname vlan1hwname=et0 size: 19350 bytes (13418 left) vlan0hwname=et0 root@DD-WRT:~#

GUI
root@DD-WRT:~# nvram show | grep vlan.ports vlan1ports=4 5 vlan0ports=3 2 1 0 5* size: 17380 bytes (15388 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: 17380 bytes (15388 left) root@DD-WRT:~# nvram show | grep vlan.hwname vlan1hwname=et0 vlan0hwname=et0 size: 17380 bytes (15388 left) root@DD-WRT:~#

Pictures
DarkShadow's Unit

DD-WRT Notes
Also see this page: Version 5 And 6 Router Information

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

A CFE compressor is available for the Gv5.0,5.1, and 6.0. It enables micro_plus to be put on the router. Click here.