ttylinkd(8) on Linux
The text dd63da0b8eba, as Debian 2.2 (Potato), Debian 2.1 (Slink), Debian 2.0 (Hamm) shipped it.
TTYlink daemon for AX.25, NET/ROM, ROSE and IP.
Flags it lists
-
-c -
-f -
-h -
-v