tcpdump(8) on OpenBSD
The text b4cac3bdc2f3, as OpenBSD 2.8, OpenBSD 2.7 shipped it.
dump traffic on a network
Flags it lists
-
-F -
-N -
-O -
-S -
-T -
-X -
-a -
-c -
-d -
-dd -
-ddd -
-e -
-f -
-i -
-l -
-n -
-p -
-q -
-r -
-s -
-t -
-tt -
-v -
-vv -
-w -
-x