Does IOS support simultaneous wifi and 3g/4g connections?

Question

I have a customer who has a device that has its own builtin wifi hot spot and he would like to connect it to an iPad 4G vie wifi and forward data at the same time through the cellular connection. Is this supported in IOS and if so can you point me to the appropriate documentation. Any suggestions are appreciated.

Jim

Answer 1

Comparing to Android, iOS supports simultaneous work of multiple network adapters. It's necessary to write C code working with BSD sockets, doing enum, bind, and handling network interface changes.

By the way, it's ideologically very important to continue using that native BSD functionality in C/C++, otherwise, who knows, Apple may in 5-10 years remove support for BSD sockets completely :-)

Some C examples of how to do that you can find here: https://gist.github.com/avesus/fdb465b60a4f5204845c