ProtoPort Personal Firewall is a robust security program that observes all network traffic, enabling users to allow or stop network packets based on specified conditions.

By selectively passing or blocking each packet, the firewall can help to keep your computer and your network secure against hackers and other online threats. And because the program monitors network traffic on the lowest possible level, you can be sure that unwanted network packets won't be able to make their way onto your computer.
Some of the features that make Protoport Personal Firewall a great choice for anyone who needs protection online include native support for all popular protocols, including ARP, IP, TCP, UDP, and ICMP. In addition, the software can also limit network bandwidth for specified applications, block online ads, and block cookies, ActiveX, Flash movies, Java, and Visual Basic scripts.
Overall, if you're looking for a reliable and effective firewall program that can help you stay safe online, then Protoport Personal Firewall is definitely worth considering. It's easy to use, highly customizable, and designed to protect your computer and your network from a wide range of online threats.
Version 1.5: few interface bugs fixed, Web Guard improved
Version 1.3: few interface bugs fixed, Web Guard improved