dnroute(8) on Linux
The text 070681d301b0, as Debian 5.0 (Lenny), Debian 4.0 (Etch) shipped it.
DECnet Routing Daemon
Flags it lists
-
-2 -
-? -
-D -
-V -
-d -
-h -
-n -
-r -
-t -
-v