I’m new at this program and I was using ESET Smart Security
with ESET I was able to make my PC invisible in the network (university dorms) except for my friends by adding their IP addresses as a trusted zone
with COMODO I was able to get the invisible part done but with a big problem
the firewall kept asking me for every IP that tried to access my PC whether I want to block it or allow it
the question is
how can I block the entire compos with one step instead of going through every IP?