h1. Enable DHT



<pre><code class="java">

		public void StartDht (ClientEngine engine, int port)
		{
			// Send/receive DHT messages on the specified port
			IPEndPoint listenAddress = new IPEndPoint (IPAddress.Any, port);

			// Create a listener which will process incoming/outgoing dht messages
			DhtListener listener = new UdpListener (listenAddress);

			// Create the dht engine
			DhtEngine dht = new DhtEngine (listener);

			// Connect the Dht engine to the MonoTorrent engine
			engine.RegisterDht (dht);

			// Start listening for dht messages and activate the DHT engine
			listener.Start ();

			// If there are existing DHT nodes stored on disk, load them
			// into the DHT engine so we can try and avoid a (very slow)
			// full bootstrap
			byte[] nodes = null;
			if (File.Exists (path))
				nodes = File.ReadAllBytes (nodes);
			dht.Start (nodes);
		}

		public void StopDht (DhtEngine dht, DhtListener listener)
		{
			// Stop the listener and dht engine. This does not
			// clear internal data so the DHT can be started again
			// later without needing a full bootstrap.
			listener.Stop ();
			dht.Stop ();

			// Save all known dht nodes to disk so they can be restored
			// later. This is *highly* recommended as it makes startup
			// much much faster.
			File.WriteAllBytes (path, dht.SaveNodes ());
		}
</code>
</pre>