Yea, they all suck that way. I still use my own router for wifi. It’s just routing, and your own router will know which way to the internet, unless there’s something I don’t understand about your internet connection. See my other comment below.
Yea, requirements mapping like this is standard stuff in the business world, usually handled by people like Technical Business/Systems Analysts. Typically they start with Business/Functional Requirements, hammered out in conversations with the organization that needs those functions. Those are mapped into System Requirements. This is the stage where you can start looking at solutions, vendor systems, etc, for systems that meet those requirements.
System Requirements get mapped into Technical Requirements - these are very specific: cpu, memory, networking, access control, monitor size, every nitpicky detail you can imagine, including every firewall rule, IP address, interface config. The System and Technical docs tend to be 100+/several hundred lines in excel respectively, as the Tech Requirements turn into your change management submissions. They’re the actual changes required to make a system functional.
Since their modem is handing out DHCP addresses, is there any reason why you couldn’t just connect that cable to your router’s internet port, and configure it for DHCP on that interface? Then the provider would always see their modem, and you’d still have functional routing that you control.
Since consumer routers have a dedicated interface for this, you don’t have to make routing tables to tell it which way to the internet, it already knows it’s all out that interface.
Just make sure your router uses a different private address range for your network than the one handed out by the modem.
So your router should get a DHCP and DNS settings from the modem, and will know it’s the first hop to the internet.
I do this to create test networks at home (my cable modem has multiple ethernet ports), using cheap consumer wifi routers. By using the internet port to connect, I can do some minimal isolation just by using different address ranges, not configuring DNS on those boxes, and disabling DNS on my router.
Yea, I’ve been eyeing a box like that, looks like it could be useful.
Yep, it’s all tradeoffs, gotta know what you’re shooting for. My Pi cost $5, I’m using an old phone charger (I have many), and an old microsd. If anything fails, I just grab another from the junk box.
All I know with my current use-case is I can’t measure the power consumption with the tools I use. I imagine that means under 5w draw (not really sure what it’s capable of measuring).
My current file server, an old gaming rig, consumes 100w at idle.
I’m considering a TrueNAS box running either 2.5" ssd’s or NVME sticks (My storage target is under 8TB, and that’s including 3 years projected growth).