Tuesday, August 11, 2020

Share usb0 (4G Modem) internet over Ethernet on Linux

I am using Network Manager on a machine running Arch. I have connected a 4G modem using the usb0 interface. I want to share this connection over Ethernet to my laptop that is using wicd on Debian 10.

I have configured "shared to other computers" on the Ethernet interface in Network Manager. The host PC has MDI-X support (the laptop does not). I have enabled IPv4 port forwarding on the host machine.

The two machines can ping each other but the client PC cannot ping the router or the world wide web.

Any help would be greatly appreciated.



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