How to check if iPhone app is compatible for IPv6 only network from India

Question

My app is live on the apple app store. When I resubmit my app's new version on the app store the rejected it by saying that it structs in an infinite loading process when tested on iOS 10.2 on IPv6 only network. They provided a screen shot of the view where it structs. Which indicates that it is not able to load data from the gmail server. I used this link http://www.brianjcoleman.com/tutorial-how-to-test-your-app-for-ipv6-compatibility/ to create IPv6 network from my Mac. Then I connected my iPhone with iOS 10.2 to this network. My app is working fine on this network too. I live in India. Is it possible that my app is making connection to the gmail server using IPv4 network even though I have setup IPv6 network from my Mac.

Any Help is appreciated.

Answer 1

You can check IPv6 with JIO network in India.

Instruction for IPv6 configurations is available in the below link Supporting IPv6 DNS64/NAT64 Networks

In the above under the topic Test for IPv6 DNS64/NAT64 Compatibility Regularly you can find the steps for checking IPv6 compatibility.

Answer 2

I did not change anything in my code. I put a request to Apple review board that I have checked my app by following the instructions in "Test for IPv6 DNS64/NAT64 Compatibility Regularly". It is running well. They again reviewed my app and passed it. I think Apple wants the developers to know more about IPv6 network.