ndptool(8) on Linux
The text 183f9f65a0e7, as Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch) shipped it.
Neighbor Discovery Protocol tool
Flags it lists
-
--help -
--ifname -
--msg-type -
--unsolicited -
--verbose -
-U -
-h -
-i -
-t -
-v