segun use the syntax: radclient [options] server [: port] <command> [<secret>]
no <command> between: auth, acct, status, coa, or disconnect.
c-send the packet count 'count' times.
-d raddb Sets the directory of the dictionary.
-f file Read packets from file, not stdin.
-i id The id of the request = 'id'. Values in the range 0 .. 255
-n num Send N requests / s
Send p-num 'num' packets from a file simultaneously.
-q Do not print anything on screen.
-r retry in case of timeout, try to send a certain number of times.
-s Print summary of the results of authentication.
S-file read the word secret (secret) from a file and not from the command line.
Time-t timeout waiting 'timeout' in seconds before a new attempt (may be a floating point number).
-v Show the version.
Debugging mode-x.
Examples:
echo "User-Name = test" | / usr / local / bin / radclient localhost: 1812 auth s3cr3t
echo "User-Name = test, password = mypass, Framed-Protocol = PPP" | / usr / local / bin / radclient localhost: 1812 auth s3cr3t