> (OpenBSD added the pflog interface for tcpdump purpose though) My bad, it is the enc(4) interface: https://man.openbsd.org/enc.4
# ifconfig enc0
enc0: flags=0<>
index 2 priority 0 llprio 3
groups: enc
status: active
# tcpdump -i enc0
tcpdump: listening on enc0, link-type ENC
#
