dvmrpd(8) on OpenBSD
The text 4391c93a675e, as OpenBSD 7.2, OpenBSD 7.1, OpenBSD 7.0, OpenBSD 6.9, OpenBSD 6.8, OpenBSD 6.7 shipped it.
Distance Vector Multicast Routing Protocol daemon
Flags it lists
-
-d -
-f -
-n -
-v