缺乏上下文或国家信息使之不能把包过滤用于数据包为基础的协议，如文件传送协议。

Lack of context or state information makes it impossible to use packet-filters for datagram-based protocols such as File Transfer protocol.

youdao

缺乏上下文或国家信息使之不能把包过滤用于数据包为基础的协议，如文件传送协议。

Lack of context or state information makes it impossible to use packet - filters for datagram-based protocols such as File Transfer protocol.

youdao

缺乏上下文或国家信息使之不能把包过滤用于数据包为基础的协议，如文件传送协议。

Lack of context or state information makes it impossible to use packet - filters for datagram-based protocols such as File Transfer protocol.

youdao