[beagleboard hacking note] Bluetooth network

Because of using USB OTG mode, connecting beagleboard with keyboard and mouse. I cannot use usb0 as ethernet card. Therefore, I can use bluetooth dongle to simulate ethernet card.

1. modify the kernel configure, to allow usb bluetooth dongle works.
@@ -455,7 +455,7 @@ CONFIG_BT_HIDP=y
#
# Bluetooth device drivers
#
-# CONFIG_BT_HCIBTUSB is not set
+CONFIG_BT_HCIBTUSB=y
CONFIG_BT_HCIBTSDIO=y
# CONFIG_BT_HCIUART is not set
CONFIG_BT_HCIBCM203X=y

2. After boot, plug the dongle.
determin if bluetooth device detected or not.
> hcitool dev
scan surrounding bluetooth devices
> hcitool scan
If everything goes fine, we can try to connect bluetooth devices (e.g. mouse)

3. make your laptop a network access point (NAP) a very good document you should check
On your laptop with bluetooth RF on
a. turn off /etc/init.d/bluetooth
> /etc/init.d/bluetooth stop
b. modprobe bnep
c. pand -s -r NAP
On beagleboard:
a. finding the baddr of your laptop
> hcitool scan
b.connect to your laptop
>pand -c XX:XX:XX:XX:XX:XX:XX
c. Setup your beagleboard network
> ifconfig bnep0 192.168.0.202
> route add default gw 192.168.0.200
d. On your laptop set, let your laptop becomes an NAT gateway:
> ifconfig bnep0 192.168.0.200
> echo 1 > /proc/sys/net/ipv4/ip_forward
> iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -j MASQUERADE
Enjoy the wireless network :-)