What's your ethernet line speed? The readme mentions the cable type, but are you running 10M/100M/1G/10G?
(Probably not 10M, I don't think you can send 64k packets in 4 seconds on 10M; you'd need a little bit more time)
(Probably not 10M, I don't think you can send 64k packets in 4 seconds on 10M; you'd need a little bit more time)