The packet filter ACTS like a traffic cop; it analyzes where you are going and what are you bringing with you.

包过滤起交通警的作用，它分析你想到那儿去，你随身携带了什么。

youdao

The packet filter ACTS like a traffic cop; it analyzes where you are going and what are you bringing with you.

包过滤起交通警的作用，它分析你想到那儿去，你随身携带了什么。

youdao