Using external packet filters or layer-specific switches optimizes the function of the device.
使用外部数据包过滤器或特定层的转换可以优化设备的功能。
External packet filters and IP Layer-4 and Layer-7 switches can also handle and route client requests.
外部数据包过滤器以及IP的第4层和第7层之间的转换也可以处理和发送客户机请求。
You can set up different packet filters for different users that are located on internal (LAN) side or external (WAN) side based on their IP addresses or their network Port number.
您可以设置该位于内部(LAN)一方或外部(广域网)方根据其IP地址或端口号的网络不同用户的不同数据包筛选器。
If an incoming packet of information is flagged by the filters, it is not allowed through.
如果一个输入的信息包被过滤器做了标记，它就不允许通过。
Lack of context or state information makes it impossible to use packet - filters for datagram-based protocols such as File Transfer protocol.
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。
Based on tuple space search, a packet classification algorithm called bitmap vector of tuple space for multi dimensional conflict free filters is presented in this paper.
本文对无过滤规则无冲突的数据库进行了研究，提出了基于元组空间多维分组分类算法：元组空间矢量位映射算法。
However, most packet-filters are stateless, understand only low-level protocols, and are difficult to configure and verify.
然而，多数包过滤是不分国家的，它们只懂得低级协议，难以配置和验证。
Lack of context or state information makes it impossible to use packet-filters for datagram-based protocols such as File Transfer protocol.
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.
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。
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