The method you described will share your Internet connection to your iPhone on recent Macs and iPhones. Specifically, on macOS Sierra, follow the instructions in the Apple Support Article, but choose to share your Internet to computers using iPhone USB. • On your Mac, open System Preferences and click on Sharing.

Yes it is possible if you have an Airport card in the ibook and connect to the internet wirelessly. Just hook the cable to the nic cards in both computers.Open the network preferences on the mini and set for ethernet. On the ibook go to network,Airport,and check box to allow s. Set up Internet Sharing between two Ethernet ports to make sure both work (do not use a device like Apple TV 3 or an iPad, use another OS computer which will let you know exactly what's happening in the receiving Sharing out to Airport is very easy if you have an ethernet connection to your Mac Mini.

• Enable Internet Sharing by clicking the checkbox. • In the Share your connection from pop-up menu, select Ethernet (or Thunderbolt Ethernet on MacBooks using the Thunderbolt-Ethernet adapter). • In the To computers using list, select iPhone USB. Just as an aside, this will result in double NAT-ing in most cases. It also will not matter in most use cases with an iOS device, but if you wanted to bridge the USB connection to your LAN, you can create a virtual bridge interface with just the network service using your ethernet, then use ifconfig to add the iPhone USB to the bridge. No real benefits to do this (other than slightly improved jitter) but it's an alternate setup that makes some things easier, like monitoring traffic using the Mac.

– Oct 2 at 6:50. I can share my MacBook Pro's (macOS Sierra) wi-fi internet connection to my iPhone SE (iOS 10.3.3) without trouble. There's no special setting on the iPhone.

Just turn off wi-fi on the phone and it automatically connects to the internet via a USB->Microsoft word shortcut keys. Lightning cable to the MacBook Pro. I had no success with my old iPhone 4S, which could really benefit from internet sharing via USB because its wi-fi antenna periodically craps out, and I have to revive it with a hairdryer and freezer, which can be inconvenient, especially on the road.