title: Unity3d server auto discover, LAN only
body: <p>I need to implement a game with a server in a local network, <em>with no Internet access</em>.</p>
  
  <p>Provided that I can handle the connections and network communication between clients and server if they are connected, I'd like to know if there's a elegant way to make clients discover server's address at startup. </p>
  
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  <p>I'm providing my approach as an answer, in order to share the knowledge, but it would be nice to see if there is a more elegant/automatic approach.</p>