fprobe -
libpcap-based
tool
that collect network traffic data and emit it as
NetFlow flows towards the
specified collector.
fprobe-ulog - libipulog-based
fork of fprobe. It obtains packets
through linux netfilter code (iptables ULOG target). The main
advantages of this version are native input/output interface SNMP-index
support and significant performance benefit. Of course, this version
work on linux only.