[Flow-tools] Newbie asking for help

[Dainin Touch]

Hello all,

I would like to use the traffic generator Harpoon
(http://pages.cs.wisc.edu/~jsommers/harpoon/) to generate
synthetic traffic in order to conduct experiments for my
research project. Since I don't have any netflow records
available, I plan to use Harpoon to replay the packet traces
available at the Dartmouth archive (http://crawdad.cs.dartmouth.edu/).

The problem is that most of these traces are stored as packet header
traces (tcpdump) and Harpoon can only use either Netflow version 5
wire format or flow-tools format.

My questions are:
1. Are there tools available to convert tcpdump traces into flow-tools
format?
2. If no such tools are available, I could try to write one. But can someone
give me a hint how the flow-tools format look like? Harpoon appears to
be able to work with flow-cat's output but I couldn't find any information
on the Internet how flow-cat's format look like.

I am sorry if my questions are obvious. I am new to flow-tools.

Much thanks in advance,
Dainin
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