I saw something interesting in Bitdefender this morning, which I've not seen before.
Apparently it's got some IPS-like functionality for real. They do advertise it on the website, but I never saw it in action till now.
It has blocked 4 interesting attacks coming from my router. This totally makes sense, as I was testing Avast on one of my devices. Avast performs some sort of router check-up, by attacking it.