arpd(8) on Linux
The text 6baa57e49cf1, as Debian 6.0 (Squeeze), Debian 5.0 (Lenny) shipped it.
userspace arp daemon.
Flags it lists
-
-? -
-B -
-a -
-b -
-f -
-h -
-k -
-l -
-n -
-r