title: Getting complain message from radius server
body: <p>I am very new to Radius server, please give some advice if you know. 
  currently the basic configuration of Radius have been finished, while i am testing the server i got the following error: </p>
  
  <p><code>/usr/local/radius/bin/radtest user password localhost 0 testing123
  radclient:: Failed to find IP address for radius
  radclient: Nothing to send</code></p>
  
  <p>if you want to know further information for configuration please let me know.</p>