>>106110881
Simple, use the ip utility:
ip neighbor
Case it's Linux, I assume all operating systems have equivalent tools.
It's Ethernet we talking so everyone occasionally sees everyone, regardless the IP.
>I could use my ONT's config page, but it's awful and slow
ONT? Router?
It's doing the exact same thing anyway.
>>106112138
Obviously. Many have CPUs with integrated graphics plus a GPU in a card form. How'd you figure anyone would be able to have Nvidia graphics card with integrated AMD/Intel graphics?