stateful inspection firewall

基本解释

The final work is to design and make a firewall based on Stateful Packet inspection.
最後設計和實現了基於全狀態檢測的防火牆。
The stateful packet inspection firewall offers protection against denial of service attacks while optimizing network traffic.
狀態包檢測防火牆提供保護、防範拒絕服務攻擊，同時優化網絡的流量。
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Stateful inspection firewall reads, analyzes and uses total information in network connection, including communication information, communication states, application states and operation information.
狀態檢測技術防火牆讀取、分析和利用了全麪的網絡通信信息和狀態，包括：通信信息、通信狀態、應用狀態和操作信息。

My question to Richard would be, what Critical or High Risk does a port-based, stateful inspection firewall mitigate?
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