Here I use the usual WiFi to Ethernet adapters. The ones I use the most are often labelled Travel Adapters which pick up the WiFi and supply an Ethernet connection for devices that don't have WiFi or where it's inconvenient to run cables.
This neatly emulates having a wired connection but with a wireless bridge. I do NOT like to call these bridges but if you insist.
These are OS AGNOSTIC.
What are the features and names of things on routers that would let the router avoid plugging in a direct wire from a modem or other internet network source, and instead, have 2 or more ethernet connected non-internet computers, and then connect to a Wifi that currently exists (with internet) to give internet to the connected ethernet/LAN computers?
It would be ideal if we can emulate putting the ethernet cable into the input or 1stslot of the switch/router and thus give them all internet access, but instead by connecting to a Wifi access point. What is this called nowadays and how can you do it on a router (if it has the ability to do it)?
Ideally without using windows or computer wireless adapters, presume that the 2 or more computers only have ethernet adapters.
I have seen some terms used like Wired bridge mode,
Wired Access Point, useless range extenders and articles about broadcasting or expanding your wifi (which is easy), statements that it is impossible, and various config names but no real direct answer.
note: I am not using the method of simultaneously having the 'no internet access' ethernet and the internet access wifi, on both wireless and ethernet adapter, even though that works on windows.

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