InternetSharingForRPI

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Diagram

/images/2018_09_04_16_41_05_678x430.jpg

Command

RPI: 192.168.0.1624
Laptop USB Ethernet Adapter: 192.168.0.3324

Laptop:

# sudo iptables -t nat -A POSTROUTING -s 192.168.0.16/24 ! -d 192.168.0.16/24 -j MASQUERADE

Rpi:

# sudo route delete default gw 192.168.0.1
# sudo route add default gw 192.168.0.33
# sudo vim /etc/resolv.conf
nameserver 192.168.42.129

Thus your rpi could directly go to the internet.