It could be said that Protowall IP blocker is a firewall that works manually in place of automatically. That`s because it lets the user establish by hand the IPs they don`t want to access their PC, blocking any access that comes from those IPs.
Protowall IP blocker works with all types of connection protocol: TCP-IP, UDP, ICMP, IGMP and RAW IP.
The list of all the IPs blocked by Protowall IP blocker can be exported/imported from other types of file, and you can make new insertions, modifications, delete IPs from the list, etc.