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netsampler / goflow2

High performance sFlow/IPFIX/NetFlow Collector
BSD 3-Clause "New" or "Revised" License
463 stars 110 forks source link

filter incoming traffic #334

Closed majid-darvishfard closed 2 months ago

majid-darvishfard commented 3 months ago

hi guys Is it possible to filter incoming traffic in goflow2 before sending it to Kafka? For example, let's send only Netflow packets whose DIRECTION value is 1

lspgn commented 3 months ago

Hello, This is not possible. Adding such filters would complicate a lot the code. I would suggest filtering once decoded (in Kafka using tools like vector or at query time in ClickHouse).