说明：  本书讲述Cisco连网操作系统（IOS）的IP相关命令。讲述了IOS IP相关命令的操作和使用，并提供了大量使用这些命令的例子。例子中有怎样配置Cisco路由器，包括独立接口和路由协议；网络硬件的测试和故障诊断以及传输机制；使用不同的数据存储类型以方便存储、检索和修改路由器配置。提供的大量例子可以容易地套用到某种特定操作需求上。
(The book on Cisco Internet Operating System (IOS) of the IP-related commands. IOS IP-related story of the operation and use of command and provide a large number of examples of the use of these commands. There are examples of how to configure Cisco routers, including the independent interfaces and routing protocols network hardware testing and fault diagnosis as well as the transmission mechanism the use of different types of data storage to facilitate the storage, retrieval and modification of the router configuration. Provided a large number of examples can be easily applied to the needs of a particular operation.)