flowd is a NetFlow collector daemon intended to be small, fast and secure. It features some basic filtering to limit or tag the flows that are recorded and is privilege separated, to limit security exposure from bugs in flowd itself. Flowd is IPv6 capable - supporting flow export via IPv6 transport and NetFlow v.9 IPv6 flow records. It also supports reception of flow datagrams sent to multicast groups, allowing one to build redundant flow gathering systems.
WWW: http://www.mindrot.org/projects/flowd/
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