Before a long explanation the simple question:
can I use the Wi-Fi interface of OpenWRT as a router to connect to an ADSL modem configured in bridge mode?
I have a server as a hypervisor for my studies. It's an old Xeon e5-2696v4 running Fedora with KVM; I also use it as a workstation to play games. The entire thing consumes 200W at idle: it's a lot to keep running 24/7.
For this reason I also own an i5-7400 with Fedora and KVM always on. It keeps many services running 24h, including a VM running OpenWRT as a router connected directly to an ADSL modem in bridge mode.
It all works fine!
But I usually play games late night and I try to not wake the entire family... So I move the entire monster far away (the two computers are on the same box). This move makes me pass a long Cat6 cable through the apartment and that's what I want to avoid.
It would be nice to let the modem's radio turned on and use the OpenWRT antenna to connect to it, so I could avoid the network cable.
And before I make any moves and changes here, I'd like to ask the community this simple question:
can I use the Wi-Fi interface of OpenWRT as a router to connect to an ADSL modem configured in bridge mode?