title: Get the WAN IP in the iOS app
body: <p>So I need to retrieve the user's WAN IP from within the app I am building. I saw this answer here: 
  <a href="https://stackoverflow.com/questions/7072989/iphone-ipad-osx-how-to-get-my-ip-address-programmatically">iPhone/iPad/OSX: How to get my IP address programmatically?</a></p>
  
  <p>But this only returns the user's IP address in the local network. </p>
  
  <p>By what means can I know the user's WAN IP from within the app?</p>