Architecture and fuzzy adaptive security algorithm in intelligent firewall

The architecture of an intelligent firewall is presented and then its modules are described in detail. A fuzzy controller is the core module and the characteristics of packets are fuzzified as its inputs. Based on the fuzzy adaptive security algorithm, the overall security level of each kind of packet can be figured out and adjusted according to the varying states of the packets. The intelligent firewall can respond to these changes and take different actions accordingly. Therefore, the intelligent firewall resolves the conflict between security and speed and retains both high security and high performance.