title: udp traffic with Iperf for haproxy
body: <p>I'm working on my personal project on "performance evaluation" of Haproxy using Docker Container. I'm programming with Python and uses iperf for traffic generation.</p>
  
  <p>I created several Docker containers as clients and servers. The clients are supposed to send udp traffic to servers via Haproxy container which acts as a load balancer.</p>
  
  <p>The issue is when I try to send udp traffic from clients to servers, Haproxy refuses the connexions.
  I did not find in the official documentation how to bind or listen to UDP port.</p>
  
  <p>Thank you in advance for your reply.</p>
  
  <p>Here is a copy of my haproxy.cfg.</p>
  
  <p><code>global 
   quiet
   nbproc 4 
   daemon
  listen tcp_haproxy 172.17.4.230:5001
  balance roundrobin
  server server0 172.17.4.227:5001
  server server1 172.17.4.228:5001
  server server2 172.17.4.229:5001
  </code></p>