title: GCDAsyncSocket peer to peer connection
body: <p>I'm trying to use GCDAsyncSocket to establish a peer to peer connection between my Mac and my iPhone. Currently both devices are connected under the same wifi. But using the method:</p>
  
  <pre><code>[asyncSocket connectToHost:@"my iPhone's IP address" onPort:80 error:&amp;err]
  </code></pre>
  
  <p>does not work. Is it due to my false operation? Could you please explain how to set up a peer to peer connection under my circumstance?</p>