My WIFI is connected to the Internet. I want share Internet with a device that doesn’t have wifi via the WIRED ethernet ports.
Using systemd-networkd I configure
/etc/systemd/network/wifi.network like so:
Notice IPForward which is key.
My WIRED ethernet port is configured by
/etc/systemd/network/wired.network like so:
Notice my DHCPServer so that the client to the network port can get an IP.
I use this networking technique when wire sharking.