Sorry, this PoE technology baffles me a bit. I have a lightweight router that can be powered over ethernet; is there a way of providing the power (and ethernet connection between the router and the laptop) from my laptop? I have heard about PoE injectors and I wonder if they could maybe transform the USB socket power into PoE for the router? The idea is to not rely on power sockets in powering that router. Laptop runs linux, but that probably is not important. And lastly the craziest idea - maybe my laptop already provides power over ethernet?
Passive PoE input.
So the main question is - can I power the router from laptop using PoE, maybe using some sort of adapter, but not resorting to wall power socket?