Share USB tethered phone to Raspberry Pi 4 LAN port
Raspberry Pi Setup
Follow the instructions on Raspberry Pi:
Take into consideration that we imagined the phone virtual interface of the Raspberry Pi is usb0.
Set a static IP address to the eth0 which would be router's clients' default gateway. To do it, there is plenty of procedure:
Put lines below to in /etc/dhcpcd.conf:
interface eth0