OpenWRT Demo

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OpenWRT Demo
Presenter(s)	Chad Mounteny
Hackerspace	HackLab.TO
Website	http://absolutelyso.blogspot.com

Contents 1 Reflashing the Router 1.1 Download the firmware image 1.2 Flash the Router 2 Rant 3 Demo 3.1 Mass Storage 3.2 Audio

Reflashing the Router

Install tftp if you haven't already. sudo apt-get install tftp (on Ubuntu!)

Download the firmware image

mkdir ~/openwrt
cd ~/openwrt
wget http://downloads.openwrt.org/kamikaze/8.09.1/brcm-2.4/openwrt-brcm-2.4-squashfs.trx

Flash the Router

• Set your computer's IP to 192.168.1.2, Netmask 255.255.255.0
• Put the router into Firmware Restoration Mode by unplugging its powercord; then re-applying power while holding down the Reset button
• When the power led starts to flash slowly;

tftp 192.168.1.1
>binary
>trace
>put openwrt-brcm-2.4-squashfs.trx

• wait at least two minutes; if you're impatient

sleep 120

• test by trying the following command;

telnet 192.168.1.1

• if you saw the prompt you're in pretty good shape; run this to enable ssh;

passwd root

• now reboot the router with the following command then login with ssh to continue on;

reboot

Rant

This talk is about installing an alternative operating system on a wireless router. We have to start this discussion by considering what we think of when we say 'computer'. The natural thing that comes to mind is your laptop or a screen and a box and key board and mouse on a desk.

Demo

• adding web radio
• adding vnstat
• using it as an ssh tunnel
• using the serial port
  • use 3.3v FTDI cable from Adafruit and custom made adaptor
    • pinouts from adafruit and mightyohm.org
  • show boot up and interaction
    • mention modem posibility
    • interact directly with microntroller

Mass Storage

opkg install kmod-usb-ohci
insmod usb-ohci
opkg install kmod-usb-storage
insmod scsi_mod
insmod sd_mod
insmod usb-storage

Audio

opkg install kmod-usb-ohci
opkg install kmod-alsa