> (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 #