[Sohcahtoa82]

Not necessarily.

T-Mobile could respond to DNS requests with an IPv6 address that includes an encoding of Amazon.com's IPv4 address in it so that when you try to connect it it, the gateway knows what IP address you're looking for and can do the NATing there.

Of course, this is just conjecture about a possible way of making it work, and it could easily get broken if you configure your phone to use a different DNS server.

[ec109685]

Thanks, that's a good point. Apple talks about it here: https://developer.apple.com/library/archive/documentation/Ne...