radclient(1) on Linux
The text 1329d5b325e2, as Debian 9 (Stretch) shipped it.
send packets to a RADIUS server, show reply
Flags it lists
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-4 -
-6 -
-D -
-F -
-P -
-S -
-c -
-d -
-f -
-h -
-i -
-n -
-p -
-q -
-r -
-s -
-t -
-v -
-x