I can`t see the option 'Create NAT64 Network' in Sharing

Question

I need to test my iOS app because it was revoked by iTunes Connect. I'm following step by step the recommendation made ​​by App Store:

Supporting IPv6 DNS64/NAT64 Networks

But when I want to select the option 'Create NAT64 Network' not shown:

Answer 1

1. You must be connected to internet by Ethernet cable, not WiFi

2. In "System Preferences", before you click on "Sharing", keep pressed and don't release the Alt key on your Mac

That way the "Create NAT64 Network" will appear

Answer 2

I also had same problem, but below step solved my problem

Please Read this steps Carefully, it will Solve your Problem

1) Make sure your Mac is connected to the Internet, but not through Wi-Fi.

2) Launch System Preferences from your Dock, LaunchPad, or the Apple menu.

3) Press the Option key and click Sharing. Don’t release the Option key yet.

4) Select Internet Sharing in the list of sharing services.

For more info: https://developer.apple.com/library/ios/documentation/NetworkingInternetWeb/Conceptual/NetworkingOverview/UnderstandingandPreparingfortheIPv6Transition/UnderstandingandPreparingfortheIPv6Transition.html