MoCA adapters are crazy expensive though
In my case, I didn't build a MoCA network, just used these devices point-to-point. If you go full MoCA, think of it like a distributed hub - no switching, no routing, no security. In fact you should put filters to prevent neighbors from listening in using their own MoCA adapters. For me, point-to-point worked. YMMV but Ethernet over Coax is definitely worth looking into for upto 1gbps speed, which is plenty for wifi, netflix etc.
Wow. Who knew that inbound cable internet has outbound data capability? Thanks for posting.
Is this a suitable filter (-70db)? https://www.amazon.com/GLP-1G70CWWS-Filter-Eliminate-Multi-R...
The physical medium isn't directional, so there's no reason to assume it would not transmit and receive. A coax cable is equivalent to three wires with better isolation from the environment (and with one "wire" usually used for ground).
There's an asymmetry in commercial broadband over coax, but Im not sire why that is precisely. Perhaps someone familiar with DOCSIS etc. could say.
It would be pretty expensive to turn every coax run in my house into a hardwired ethernet switch but well placed hardwired APs obviates the need to do that.
Ethernet runs are cheaper in parts, but MoCA adapters are crazy effective at avoiding large drywalling jobs.
This is assuming you have coax rg6 or better already in the wall