这是一本图文并茂的网络管理技术书籍，旨在让广大读者理解TCP/IP的基本知识、掌握TCP/IP的基本技能。

书中讲解了网络基础知识、TCP/IP基础知识、数据链路、IP协议、IP协议相关技术、TCP与UDP、路由协议、应用协议、网络安全等内容，引导读者了解和掌握TCP/IP，营造一个安全的、使用放心的网络环境。

本书适合计算机网络的开发、管理人员阅读，也可作为大专院校相关专业的教学参考书(This is an illustrated online management technology book which aims to give readers understanding of TCP/IP basic knowledge and basic skills of TCP/IP.
Book explained the basic knowledge, basic knowledge of TCP/IP network, data link, IP protocol, IP protocol related technology, TCP and UDP, routing protocol, the application protocol, network security, such as content, lead readers to understand and grasp the TCP/IP, build a secure network environment, use at ease.
This book is suitable for the development and management of computer network, and can also be used as a teaching reference for colleges and universities)