mopprobe(1) on OpenBSD
The text 877eaa23aa1d, as OpenBSD 4.6, OpenBSD 4.5, OpenBSD 4.4, OpenBSD 4.3, OpenBSD 4.2 shipped it.
MOP Probe Utility
Flags it lists
-
-3 -
-4 -
-a -
-o -
-v