Developing a Feasible Firewall System with Parallel Rule Allocation Optimization for High Service Availability under Large-Scale Network Attacks

Firewalls are essential in the front line of protected networks to safeguard them against network attacks. With the massive and increasing deployment of IoT and 5G devices on the Internet, large-scale network attacks are easily launched but the structure of current firewalls can no longer protect the managed network from being paralyzed by such large attacks. In this study, a novel firewall system with parallel rule allocation optimization was developed to offer overall packet filtering with rule anomalies and high availability of the protected network. As a result, the developed system was implemented and evaluated for packet-filtering rates. The results showed excellence and feasible performance.