Check out <a href="https://www.cspi.com/aria-software-defined-security/" rel="nofollow">https://www.cspi.com/aria-software-defined-security/</a>
These guys [1] offer a layer 3 bridge that does ip shunning, with white listing and black listing built in. It supposedly operates at line speed (!) which is kind of remarkable. I'd like a device like this for my in laws, they don't sell to consumers though, so far as I know.<p>[1] <a href="https://www.riskanalytics.com/cyber-security-services/intellishun/" rel="nofollow">https://www.riskanalytics.com/cyber-security-services/intell...</a>