How to sniff iPhone web traffic with Wireshark

Open Xcode and click on top Devices like in the image below:

Devices from Xcode

Copy the identifier (in the black row):

Identifier iPhone from Xcode

Now open the terminal and paste:

rvictl -s idcopyed

If it show:

Starting device identifiercopiato [SUCCEEDED] with interface rvi0

Open Wireshark and start sniffing from rvi0. Voilà!