Get the WAN IP in the iOS app

Question

So I need to retrieve the user's WAN IP from within the app I am building. I saw this answer here: iPhone/iPad/OSX: How to get my IP address programmatically?

But this only returns the user's IP address in the local network.

By what means can I know the user's WAN IP from within the app?

Answer 1

The easiest way to get your wap ip address is to use NSURLConnection .

For the URL you can use: http://www.whatismyip.com/m/mobile.asp or http://www.dyndns.org/cgi-bin/check_ip.cgi

Just parse the return data and you have your external ip address. A complete implementation is shown here . It is not the most efficient way, but it works.