mtrace(8) on OpenBSD
The text dbdfa2c56082, as OpenBSD 4.0, OpenBSD 3.9, OpenBSD 3.8, OpenBSD 3.7, OpenBSD 3.6, OpenBSD 3.5, OpenBSD 3.4 shipped it.
print multicast path from a source to a receiver
Flags it lists
-
-M -
-S -
-g -
-i -
-l -
-m -
-n -
-p -
-q -
-r -
-s -
-t -
-v -
-w