Are you
saying that House Wifi Router in bridge mode will not connect to wifi devices
in the house, and that it will only bridge ethernet packets from the Garbage
Wifi Router to itself to the House wired ethernet?
Remember the part above where I said that WiFi and Ethernet devices are all on the same network? I said the WiFi devices will "see" Ethernet devices and Ethernet devices will "see" WiFi devices. They can all talk to each other.
I do have another Airport ... the lesser smaller model. So, let me further ask are
you saying the Apple Airport wireless routers are different in that they will in
addition to connecting a local wired ethernet network over wifi to the main
Airport router will talk to wireless devices and extend the wireless network to
areas where the main router will not reach?
From my answers above.......I said that ideally you would want to connect the smaller AirPort to your "main" Airport using a wired Ethernet connection. The reason......best performance. The smaller AirPort can probably connect to the "main" Airport using only a WiFi connection if the distance and obstructions are not too numerous.......but even if it can, you will lose at least half of the potential speed on the entire network if you set things up that way.
The smaller AirPort can "extend" the network from the "main" Airport using either a wired Ethernet cable connection or a WiFi connection.
But, if you already have the Ethernet cable running from your "main" router to the other location where the smaller AirPort will reside, why would you not want to use the fastest and most reliable connection.......Ethernet?
Honestly, I'm sorry but it really appears that you are trying to way over think things.
Let us know whether the smaller AirPort will connect to the "main" AirPort using a wired Ethernet connection......or......for some reason you cannot use Ethernet and the smaller AirPort must connect using WiFi to the "main" AirPort.
We'll tell you exactly how to configure the smaller AirPort. You will be amazed at how easy this will be.
I was under the impression that Bridge Mode would act like an h/w ethernet
bridge or switch that extends the network to more devices, either wired or
wifi?
Correct, and a repeat of what I have been saying. The "smaller" AirPort will auto configure itself in Bridge Mode, no matter whether it connects to the "main" AirPort using an Ethernet connection, or it connects to the "main" AirPort using a WiFi connection.......(which I am not recommending, unless there is no way that the AirPorts can connect using Ethernet.)