title: send udp packet with netcat without waiting for answer
body: <p>Hi i need to send udp packet with netcat without waiting for answer i tried with -w0 but something it bug and don't work </p>
  
  <p>if you need this is my command :</p>
  
  <blockquote>
    <p>echo 413055 | perl -ne 's/([0-9a-f]{2})/print chr hex $1/gie' | nc -4u -w0  192.168.111.247 8899</p>
  </blockquote>