本书完整而详细地介绍了TCP/IP协议是如何实现的。书中给出了约500个图例，15 000行实际操作的C代码，采用举例教学的方法帮助你掌握TCP/IP实现。本书不仅说明了插口API和协议族的关系以及主机实现与路由器实现的差别。还介绍了4.4BSD-Lite版的新的特点，如多播、长肥管道支持、窗口缩放、时间戳选项以及其他主题等等。读者阅读本书时，应当具备卷1中阐述的关于TCP/IP的基本知识。本书适用于希望理解TCP/TP协议如何实现的人，包括编写网络应用程序的程序员以及利用TCP/IP维护计算机网络的系统管理员。 -Book complete and detailed introduction to TCP/IP protocol is how to achieve. The book gives about 500 illustrations, 15 000 lines of C code for the actual operation, using examples of teaching methods to help you master the TCP/IP implementation. This book not only illustrates the socket API and protocol family relations and the host computer and the router to achieve the difference. Also introduced the 4.4BSD-Lite version of the new features, such as multicasting, long fat pipe support, window scale, timestamp options, and other topics and so on. Readers book, Volume 1, should have elaborated on the TCP/IP basic knowledge. This book is hope that the understanding of TCP/TP protocol how people, including programmers who write Web applications and the use of TCP/IP to maintain the computer network system administrator.