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1. 发明授权

US09882904B2 System and method for filtering network traffic 有权
公开(公告)号：US09882904B2
公开(公告)日：2018-01-30
申请号：US14296087
申请日：2014-06-04
申请人： Cisco Technology, Inc.
发明人： Dehua Huang , Adam J. Sweeney , Pradeep S. Sudame , Silviu Dobrota , Premkumar Jonnala
IPC分类号： H04L29/06
CPC分类号： H04L63/10 , H04L63/0263
摘要： Protocol status information is used to perform traffic filtering by dropping messages that are not consistent with the protocol status information. In one embodiment, a method involves comparing message information and protocol status information. The message information is associated with a first message. The protocol status information is obtained in response to one or more second messages, which are conveyed according to a protocol used to assign network addresses to clients. The method also involves determining whether to discard the first message, based on an outcome of the comparison of the message information and the protocol status information. For example, it can be determined that the first message should be discarded, if the message information does not match the protocol status information.

2. 发明申请

US20140289800A1 SYSTEM AND METHOD FOR FILTERING NETWORK TRAFFIC 审中-公开
标题翻译：用于过滤网络流量的系统和方法
公开(公告)号：US20140289800A1
公开(公告)日：2014-09-25
申请号：US14296087
申请日：2014-06-04
申请人： Cisco Technology, Inc.
发明人： Dehua Huang , Adam J. Sweeney , Pradeep S. Sudame , Silviu Dobrota , Premkumar Jonnala
IPC分类号： H04L29/06
CPC分类号： H04L63/10 , H04L63/0263
摘要： Protocol status information is used to perform traffic filtering by dropping messages that are not consistent with the protocol status information. In one embodiment, a method involves comparing message information and protocol status information. The message information is associated with a first message. The protocol status information is obtained in response to one or more second messages, which are conveyed according to a protocol used to assign network addresses to clients. The method also involves determining whether to discard the first message, based on an outcome of the comparison of the message information and the protocol status information. For example, it can be determined that the first message should be discarded, if the message information does not match the protocol status information.
摘要翻译：协议状态信息用于通过丢弃与协议状态信息不一致的消息来进行流量过滤。在一个实施例中，一种方法包括比较消息信息和协议状态信息。消息信息与第一消息相关联。响应于根据用于向客户端分配网络地址的协议传送的一个或多个第二消息来获得协议状态信息。该方法还包括基于消息信息和协议状态信息的比较的结果来确定是否丢弃第一消息。例如，如果消息信息与协议状态信息不匹配，则可以确定第一消息应被丢弃。

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