features:
* Understands NetFlow protocol v.1, v.5, v.7 and v.9 (including IPv6 flows)
* Supports both IPv4 and IPv6 transport of flows
* Secure: flowd is privilege separated to limit the impact of any compromise
* Supports filtering and tagging of flows, using a packet filter-like syntax
* Stores recorded flow data in a compact binary format which supports
run-time choice over which flow fields are stored
* Ships with both Perl and Python interfaces for reading and parsing the
on-disk record format
* Is licensed under a liberal BSD-like license
PR: ports/73722
Submitted by: Janos Mohacsi <janos.mohacsi@bsd.hu>