FreeBSD (
pfSense (
IPFIX (Netflow) (,
- including MAC addresses
VLAN capable

yaf (
Nfdump (

Simple, yet effective tailored and customizable reports

Intentionaly built without any Deep Packet Inspection (DPI) (
- ensure Net neutrality
- keep costs low for hardware (less computing power) and software (lower complexity)
- no 'cats and dogs' game to run after ever-evolving application and service types
- no insights into the content, no 'spyware', only uses short-lived metadata for reporting

- cheap in hardware & software; no ongoing maintenance/updating of rules required

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