1. Pull code from openbeacon fork

git clone http://git.42.org/openbeacon.git

2. Edit openbeacon/host/services/openbeacon-tracker/src/bmReaderPositions.h to include reader locations for 28c3 or eh12

vi openbeacon/host/services/openbeacon-tracker/src/bmReaderPositions.h

3. You will need libpcap to build the tracker

sudo apt-get install libpcap libpcap-dev

4. Then just run the makefile

cd openbeacon/host/services/openbeacon-tracker

make

5. Download data for EH12, Check http://web.xtort.eu/~dump/pkt/ for 28c3 data

wget http://zonk.muc.ccc.de/r0ket/2012-04-06-12:37:01.pcap.xz

6. Extract into pcap file and run tracker

unxz 2012-04-06-12:37:01.pcap.xz

./openbeacon-tracker 2012-04-06-12:37:01.pcap

This will produce json output that can now be further parsed or played with.