I am looking to filter out IP addresses using hardware external to the computer itself.
I have decided that using Windows' system for filtering IPs/hosts is no good, because if someone hacked the computer itself, then they could just alter all of that anyway.
So it needs to be some external device, that can't be hacked.
The thing is, I am in a place where other people use the same router as me. So, using any built-in IP address filtering on the router is no good.
It needs to be some kind of hardware device that is placed between my computer, and the router.
It would have the ability to
1. Filter out all IP addresses except certain ones
2. Or, just filter out certain IP addresses
What is your recommendation for this...?