Capturing wireless traffic on the xo

[Javier Cardona]

Bernie,

As requested, here are the steps to capture wireless traffic on the xo:

pre-req:

yum install tcpdump
killall NetworkManager

then:

echo $TRAFFIC_MASK > /sys/class/net/msh0/device/libertas_rtap
ifconfig rtap0 up
tcpdump -i rtap0 -w capture.dump

TRAFFIC_MASK bits:

Data frames: 0x1
Mgmt frames but beacons: 0x2
Beacons: 0x4

You can then open capture.dump with wireshark.  To interpret mesh
traffic correctly, you will want to compile wireshark with this patch:
https://cozybit1.dnsalias.org/~javier/patches/wireshark-0.99.5-fw-5.220.11-support.patch

Let me know if you have any questions.

Cheers,

Javier