Introducing bpflogd(8): capture packets via BPF to log files
by from OpenBSD Journal on (#6WVTA)
In a recentpostto tech@, David Gwynne (dlg@) introduced a new daemon to log packets from BPF.
Themessagereads
List: openbsd-techSubject: bpflogd(8): capture packets via BPF to log filesFrom: David Gwynne <david () gwynne ! id ! au>Date: 2025-04-24 5:44:53this is basically pflogd(8), but different.the reason it exists is because i needed to continously log some packetsfrom span ports coming from multiple switches to try and help debug anetwork issue that only seems to occur every couple of months. pflogdprovides that for a single pflog interface, but i needed it on multipleethernet interfaces.