中文摘要：

针对计算机网络协议教学，提出了一套实践到理论、实践与理论对比的教学手段. 该教学手段中实践到理论的教学实验利用VMware workstation软件搭建实验环境，配置虚拟计算机，并在虚拟计算机上配置网络服务，利用Wireshark抓包软件抓取网络服务的协议数据包，通过对协议数据包的分析，理解网络协议的工作原理和过程，同时对网络服务的配置过程和原理有了更进一步的理解. 以DNS为例设计“服务＋协议”实验，模拟DNS域名解析的递归查询过程，通过Wireshark抓取DNS数据包，分析了解数据包的组织结构和DNS协议的工作过程，加深学生对DNS网络协议的理解. 实验证明此种实验教学方法适合高校的实验现状和学生的认知规律，促进学生积极、主动、快乐的学习.

英文摘要：

According to the teaching of computer network protocol, this paper presented a set of practice to theory, practice and theory of comparative teaching methods. In this teaching means, the experiment of practice to theory uses VMware workstation software to build the experimental environment, configures virtual computer, and configures the network services on virtual computer. This means uses Wireshark capture software to crawl the web service protocol packets.Through the analysis of protocol packet, understands the working principle and process of network protocols, and has a further understanding of the principle and configuration of network services. For example in DNS, the work designs ＂services ＋ protocol＂ experiment, simulates of recursive queries to DNS domain name resolution. Through the Wireshark grabs DNS data packet, analyses of the organizational structure of the packet and the working process of DNS protocol to enhance the students understanding of the DNS network protocol. Experiments show that this method is suitable for the current experimental status of universities, and suitable for students cognitive law. It promotes the student positive, active, happy learning.