Linksys WRT610N

The WRT610N v1.0 is based on the Broadcom 4705 cpu running at 300MHz. It has 8 MB flash and 64 MB SDRAM (2x HY5DU561622FTP). The WNICs are a dual BCM4322 Chipset, one for 5GHz A and N and one for 2.4GHz B,G and N. The switch is a BCM53115 chip. The WRT610N runs 802.11 A, B, G, and Draft N wireless protocols. It provides 4 gigabit LAN ports, 1 WAN port and a USB 2.0 port.

Supported Versions

Version/Model S/N OpenWrt Version Supported Model Specific Notes
WRT610N v1.0 CTG01 10.03.1 (r22840) Wireless (and ethernet?) is only supported on brcm-2.4 yet, untested
WRT610N v2.0 CTG11 not yet same hardware as Linksys E3000, see also bcm4716 patches

Hardware Highlights

CPU Ram Flash Network USB Serial JTag
BCM4705@300MHz 64MiB 8MiB 4 x 1 Yes Yes ?

Installation

OpenWrt should be installed with TFTP.

OEM installation using the TFTP method

Upload the openwrt-wrt610n_v1-squashfs.bin image with TFTP.

Upgrading OpenWrt

If you have already installed OpenWrt and like to reflash for e.g. upgrading to a new OpenWrt version you can upgrade using the mtd command line tool. It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.

LuCI Web Upgrade Process

Terminal Upgrade Process

  • 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 /tmp/openwrt-brcm-2.4-squashfs.trx

  • If sysupgrade does not support this router, use the following commands.

cd /tmp/
wget http://downloads.openwrt.org/latest/brcm-2.4/openwrt-brcm-2.4-squashfs.trx
mtd write /tmp/openwrt-brcm-2.4-squashfs.trx linux && reboot

Hardware

Info

Architecture: MIPS
Vendor: Broadcom
Bootloader: CFE
System-On-Chip: Broadcom BCM4705
CPU Speed: 300 Mhz
Flash-Chip: EON EN29LV640B-90TIP - 64 Megabit (8M x 8-bit / 4M x 16-bit)
Flash size: 8 MiB
RAM: 64 MiB
Wireless: 2x Broadcom BCM4322 802.11a/b/g/n (integrated)
Ethernet: Broadcom BCM53115 Gigabit Switch
USB: 1x USB 2.0 Host
Serial: Yes
JTAG: ?

Opening the case

Note: This will void your warranty!

The case parts are hold together by plastic claws, use a screwdriver to release them.

See this form post for details.

Main PCB (back side)

Serial

There are 5 solder pads near the rim on the backside of the PCB, see image above. Serial port settings are 115000@8N1.

Interfaces

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) Static
vlan1 (eth0.1) WAN port DHCP
wl0 WiFi Disabled

Switch Ports (for VLANs)

Switch port numbers are currently unknown.

Failsafe mode

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.

Boot into failsafe mode

  • 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)

Buttons

Available buttons are currently not known.

Basic configuration

Since this part is identical for all devices, see Basic configuration.

Connect stuff to the USB port

To connect stuff to the USB port, please see Connect stuff to the USB port.

Hardware Mods

Other Info

Bug Tracking Ticket

https://dev.openwrt.org/ticket/3857

Forum Thread

https://forum.openwrt.org/viewtopic.php?id=16733

Vendor Source

ftp://ftp.linksys.com/opensourcecode/wrt610n/

Original Firmware Boot Log

See bootlog.

OpenWrt System Information

See sysinfo.

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toh/linksys/wrt610n.txt · Last modified: 2012/05/15 22:12 by idl0r