radclient(1) on Linux
The text 3738cf0f30e0, as Debian 6.0 (Squeeze) shipped it.
send packets to a RADIUS server, show reply
Flags it lists
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-S -
-c -
-d -
-f -
-i -
-n -
-p -
-q -
-r -
-s -
-t -
-v -
-x