l2ping(8) on FreeBSD
The text 75e38277af2d, as FreeBSD 13.2-RELEASE, FreeBSD 13.1-RELEASE, FreeBSD 13.0-RELEASE shipped it.
send L2CAP ECHO_REQUEST to remote devices
Flags it lists
-
-S -
-a -
-c -
-f -
-h -
-i -
-n -
-s