基于ICMP模拟网络控制软件的开发——控制管理模块

包括论文,设计,论文字数:13080,页数:29

摘  要
随着网络技术的发展，网络通信已经越来越重要。而网络通信的实现，必然离不开网络协议。网络协议是一套传递信息、管理信息的规则。通过这套规则，计算机之间才能相互通信。目前,一些起到平台作用的通信协议已趋于完善，如TCP、UDP和ICMP等。它们是以IP数据包为载体（IP头+TCP/UDP/ICMP头+数据）的。控制管理模块的主要目标是管理和发送控制信息，在ICMP协议的基础上，模拟出一套自定义的规则，用于实现简单的网络控制。具体实现是通过VC 6.0创建一个对话框工程，并采用RAW SOCKET技术完成ICMP数据包的发送和接收，以ICMP的数据部分作为本协议实现的载体，即IP头+ICMP头+数据（自定义的简单协议）的数据包形式实现不同计算机之间的通信，从而达到网络控制的目的。通过测试，该模块实现了控制信息的管理和发送。

关键词：ICMP；RAW SOCKET；网络协议；数据包

The Controlling and Management software module development of simulating network control based on ICMP
Abstract
With the advance of network technique, internet communication is becoming more and more important. However, it can not be realized without network protocol, which is a set of rules for transmitting and managing information. Through these rules, each computer can communicate with each other. At present, a lot of basal protocols have been nearly perfect, such as TCP、UDP、ICMP, which are based on the IP packets (IP head + TCP/UDP/ICMP head + data).  The main task of Control Module is to manage and send the control information, which is to simulate a set of self user-defined rules and realize simple network control on the basic of ICMP protocol. The concrete realization is that we first establish a dialog-box project through VC 6.0, and then use RAW SOCKET technology to complete the sending and receiving of ICMP packets whose data part can be used as the carrier helping realize the protocol. It means that we can use the form of IP head + ICMP head + data (simple user-defined protocol) to realize the correspondence among different computers to achieve the goal of net-controlling. Through the test, the module has realized the management and transmission of control information. 

Key words：ICMP; RAW SOCKET; network protocol; data packet 

目  录

1 引言 1
1.1 课题背景 1
1.2 国内外研究现状 1
1.3 本课题研究的意义 1
1.4 本课题的研究方法 2
2 TCP/IP概述 2
2.1 概念 2
2.2 TCP/IP分层结构 2
2.3 数据封装格式 3
3 ICMP概述 4
3.1 ICMP介绍 4
3.2 ICMP报文格式 5
3.3 ICMP报文的类型 5
3.4 ICMP的重要性简介 7
4 网络套接字 7
4.1 套接字概述 7
4.2 Winsock中的几个基本概念 9
4.2.1 Winsock 9
4.2.2 阻塞和非阻塞 9
4.2.3 字节顺序 9
4.2.4 客户机/服务器模型 9
4.3 Winsock编程原理 10
4.3.1 Winsock的启动和终止 10
4.3.2 错误检查和控制 11
4.3.3 Winsock编程模型 11
5 控制协议的模拟实现 15
5.1 课题的具体要求 15
5.2 课题的实现重点 15
5.3 可视化界面的具体实现 16
5.3.1 思考过程 16
5.3.2 几种控件的具体实现 16
5.4 ICMP类的核心实现 17
5.4.1 在工程文件中插入ICMP，编写IP和ICMP头结构 17
5.4.2 对Winsock进行初始化 18
5.4.3 创建一个原始套接字，填充地址结构 18
5.4.4 填充数据 19
5.4.5 发送控制信息 19
5.5 工程文件的组成 19
5.6 控制协议的简单设计 19
5.7 模拟环境 20
5.7.1 硬件环境 20
5.7.2 软件环境 20
5.8 操作过程 20
结    论 22
参考文献 22
致    谢 23
声    明 24