Wireless | Andrew DeFilippis

by
Andrew DeFilippis,
on November 22, 2010 -
Technology
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Jasager (Fonera) Router – Changing the Wireless MAC Address and More

1. Reboot your router (disconnect and reconnect power)
2. Connect an ethernet cable from your computer to the Fonera
3. Open a Secure Shell into your router (ssh 192.168.1.1 “The IP of the Fonera”)
4. Make sure you can ping out to the internet from your Fonera router (ping google.com)

Useful Tools on the Jasager (Fonera) Router:

root@Jasager:~# cd /tmp

#This is htop, an advanced version of top
root@Jasager:/tmp# wget http://ipkg.k1k2.de/packages/htop_0.6.5-1_mips.ipk
root@Jasager:/tmp# ipkg install htop_0.6.5-1_mips.ipk
root@Jasager:/tmp# rm *.ipk

#This is nano, an easy to use text editor
root@Jasager:/tmp# wget http://ipkg.k1k2.de/packages/nano_2.0.6-1_mips.ipk
root@Jasager:/tmp# ipkg install nano_2.0.6-1_mips.ipk
root@Jasager:/tmp# rm *.ipk

#This is openntpd, an ntp client for the Fonera router (current date and time)
root@Jasager:/tmp# wget http://ipkg.k1k2.de/packages/openntpd_3.9p1-1_mips.ipk
root@Jasager:/tmp# ipkg install openntpd_3.9p1-1_mips.ipk
root@Jasager:/tmp# rm *.ipk

After installing openntpd, you need to configure it to contact the servers closest to you.
I am located in the United States, so I used the servers from us.pool.ntp.org.

NTP server reference – http://www.pool.ntp.org/en/
root@Jasager:/tmp# cd /etc
root@Jasager:/etc# cat > ntpd.conf << “EOF”
server 0.us.pool.ntp.org
server 1.us.pool.ntp.org
server 2.us.pool.ntp.org
server 3.us.pool.ntp.org
EOF

1. Open up the webif management page (http://192.168.1.1/index.html or http://192.168.1.1/webif.html)
2. Click on the “System” tab
3. Select the timezone that you are in
4. Click “Save Changes” in the bottom right corner
5. Click “Apply Changes” in the bottom right corner
At the moment, I do not recommend installing openntpd because it seems to continually spawn a new set of processes every 5 minutes or so, eventually slowing down the router. I am currently looking for a solution.

Changing the MAC addresses:

First we are going to install “macchanger” to our Jasager (Fonera) router.

root@Jasager:/etc# cd /tmp

#This is macchanger, a tool that will allow you to easily change your MAC addresses
root@Jasager:/tmp# wget http://ipkg.k1k2.de/packages/macchanger_1.5.0-1_mips.ipk
root@Jasager:/tmp# ipkg install macchanger_1.5.0-1_mips.ipk
root@Jasager:/tmp# rm *.ipk

After installing macchanger, we need to modify the file network located at /etc/init.d/network
If you installed nano, run nano network otherwise run vi network

root@Jasager:/tmp# cd /etc/init.d
root@Jasager:/etc/init.d# cp network network.bak #Make a backup of the original file
root@Jasager:/etc/init.d# chmod 444 network.bak #Make the backup file read-only

You will need to insert two lines into the file to change the MAC address
Replace “00:11:22:33:44:55″ with a MAC of your choice (make sure they are the SAME)

root@Jasager:/etc/init.d# nano network

#!/bin/sh /etc/rc.common
# Copyright (C) 2006 OpenWrt.org

START=40
STOP=40

boot() {
setup_switch() { return 0; }

include/lib/network
setup_switch
[ -s /etc/config/wireless ] || /
/sbin/wifi detect > /etc/config/wireless
macchanger ath0 -m 00:11:22:33:44:55
macchanger wifi0 -m 00:11:22:33:44:55
/sbin/wifi up
}

1. Save the file, overwriting the existing file named “network” and reboot the router.
2. When the router is finished booting up, run ifconfig to confirm that ath0 and wifi0 contain the MAC address you specified.
3. Run a wireless network scanner to confirm that the router is broadcasting the new MAC address (airmon-ng and airodump-ng)

I didn’t attempt it, but you could possibly use

(ifconfig ath0 hw ether 00:11:22:33:44:55) and

(ifconfig wifi0 hw ether 00:11:22:33:44:55)

instead of

(macchanger ath0 -m 00:11:22:33:44:55) and

(macchanger wifi0 -m 00:11:22:33:44:55)