The WHR-G125 is a 802.11g wireless router with a 5 port programmable ethernet switch.
|Version/Model||S/N||OpenWrt Version Supported||Model Specific Notes|
|v1.0||?||8.09||Has unpopulated Hirose U.FL connector inside|
|Broadcom BCM3302 V2.9 @ 240MHz||16MB||4MB||4 x 1||No||Yes||Yes|
OpenWrt should be installed via TFTP, follow the instructions in the HOWTO section.
The correct image for this device is
This device is supported by sysupgrade.
- Browse to http://192.168.1.1/cgi-bin/luci/mini/system/upgrade/ LuCI Upgrade URL
- Upload TRX file to LuCI
- Wait for reboot
- Login as root via SSH on 192.168.1.1
- Use the following commands to upgrade.
cd /tmp/ wget http://downloads.openwrt.org/latest/brcm-2.4/openwrt-brcm-2.4-squashfs.trx sysupgrade openwrt-brcm-2.4-squashfs.trx
|Architecture: MIPS (low endian)|
|Bootloader: CFE 1.0.37-1.18|
|System-On-Chip: Broadcom BCM5354 rev 1|
|CPU Speed: 240 Mhz|
|Flash-Chip: Spansion S29AL032D90TFI04|
|Flash size: 4 MiB|
|RAM: 16 MiB|
|Wireless: Broadcom BCM4318 802.11b/g (integrated)|
|Ethernet: Broadcom BCM47xx 10/100BaseT Ethernet / RoboSwitch|
Note: This will void your warranty!
- Remove the Torx screw under the bottom label
- Gently tear off the bottom cover
Pin layout unknown yet
The board has an unpopulated 12-pin Broadcom style JTAG port (JP2).
nTRST 1 2 dead
TDI 3 4 dead
TDO 5 6 dead
TMS 7 8 dead
TCK 9 10 dead
nSRST 11 12 GND
How to connect to JTAG interface, and how to reflash the device with JTAG tools
See port.jtag for more JTAG details.
The default network configuration is:
|Interface Name||Description||Default configuration|
|br-lan||LAN & WiFi||192.168.1.1/24|
|vlan0 (eth0.0)||LAN ports (1 to 4)||None|
|vlan1 (eth0.1)||WAN port||DHCP|
Numbers 0-3 are Ports 1-4 as labeled on the unit, number 4 is the Internet (WAN) on the unit, 5 is the internal connection to the router itself.
In OpenWrt versions up to Backfire 10.03, the first LAN port and WAN are reversed after flashing!
To fix the port assignment, apply the following configuration changes:
If you forgot your password, broken one of the startup scripts, firewalled yourself or corrupted the JFFS2 partition, you can get back in by using OpenWrt's failsafe mode. →generic.failsafe
- Unplug the router's power cord.
- Connect the router's LAN1 port directly to your PC.
- Configure your PC with a static IP address between 192.168.1.2 and 192.168.1.254. E. g. 192.168.1.2 (gateway and DNS is not required).
- Plug the power on and wait for the DMZ LED to light up.
- While the DMZ LED is on immediately press any button (Reset and Secure Easy Setup will work) a few times .
- If done right the DMZ LED will quickly flash 3 times every second.
- You should be able to telnet to the router at 192.168.1.1 now (no username and password)
The Bufalo WHR-G125 has two buttons and one switch to toggle router and bridge mode when using the vendor firmware. These buttons can be used with hotplug events.
|AOSS (AirStation One-Touch Secure System™)||ses|
toh/buffalo/whr-g125.txt · Last modified: 2013/06/05 19:21 by lorema