This script is able to parse incoming UDP NetFlow packets of NetFlow version 9.

Version 9 is the first NetFlow version using templates. Templates make dynamically sized and configured NetFlow data flowsets possible, which makes the collector's job harder.

• Cisco NetFlow v9 paper
• RFC "Cisco Systems NetFlow Services Export Version 9"

I have specifically written this script in combination with NetFlow exports from softflowd v0.9.9