How to make USB modem priority over WIFI in Raspberry?

Question

Computer networks

Tell me how to do this:
there is a raspberry, the local Internet via WIFI enters it and the USB whistle is plugged in.
WIFI takes priority and the whistle does not go online.
How to make the USB whistle a priority. but there was also access from the local network to the raspberry
Thank you

Answer 1

I think it's best to change the route metrics so that gw usb has a lower metric. First, try manually changing the metric for the route, and if everything is ok, specify the metric using one of the methods described in the link.
https://unix.stackexchange.com/questions/413031/ch...