title: How to test iOS app is it supporting IPv6?
body: <p>I have apps, built 2015 and 2014. How can I test them for IPv6?<br>
  If my apps doesn't support IPv6, what should I do?</p>
  
  <p>My apps are using AFNetworking and Alamofire. I'm connecting mostly to domains ( Ex. api.example.com/v1/...). Only 1 app use IP: (ex: 12.12.12.12:3000/api/v1/...).</p>
  
  <p>Is there problem for websockets? (ws://12.12.12.12:8080/api/....).</p>