route(8) on OpenBSD
The text 1f609895995b, as OpenBSD 6.5, OpenBSD 6.4 shipped it.
manually manipulate the routing tables
Flags it lists
-
-T -
-d -
-expire -
-inet -
-inet6 -
-link -
-mpls -
-mtu -
-n -
-q -
-sa -
-t -
-v