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2. 发明申请

WO2017209923A1 DETECTING SOURCE NETWORK ADDRESS TRANSLATION IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：在通信系统中检测源网络地址转换
公开(公告)号：WO2017209923A1
公开(公告)日：2017-12-07
申请号：PCT/US2017/032475
申请日：2017-05-12
申请人： 128 TECHNOLOGY, INC.
发明人： MENON, Abilash , PENFIELD, Robert , KAPLAN, Hadriel S.
IPC分类号： H04L12/28 , H04L12/58
CPC分类号： H04L43/0811 , H04L12/4633 , H04L61/2521 , H04L61/256
摘要： Two nodes in a communication system exchange link monitoring protocol messages including special metadata that allows each node to determine the status of source NAT on communication links to and from the other node, e.g., if source NAT is present on the communication link, or if there is a change in source NAT configuration (e.g., from enabled to disabled, from disabled to enabled, or from one translation to another translation). The special metadata also allows true source information (e.g., source address and source port number) to be conveyed between nodes even in the presence of source NAT, because the source NAT device does not change the metadata in the message because the metadata is considered to be part of the message payload. In certain exemplary embodiments, knowledge regarding the presence of source NAT devices as well as the true source information conveyed through the source NAT devices via the special metadata can be used in the context of "stateful" routing.
摘要翻译：通信系统中的两个节点交换包括特殊元数据的链路监视协议消息，所述特殊元数据允许每个节点确定去往和来自另一节点的通信链路上的源NAT的状态，例如，如果源NAT存在在通信链路上，或者如果源NAT配置有变化（例如，从启用到禁用，从禁用到启用，或从一个翻译到另一个翻译）。即使存在源NAT，特殊元数据也允许真正的源信息（例如，源地址和源端口号）在节点之间传送，因为源NAT设备不会更改消息中的元数据，因为元数据被认为是成为消息有效载荷的一部分。在某些示例性实施例中，关于源NAT设备的存在的知识以及通过源NAT设备经由特定元数据传送的真实源信息可以在“有状态” 路由。

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