基于ICMP模擬網(wǎng)絡(luò)控制軟件的開發(fā)——控制管理模塊

論文字?jǐn)?shù):13080,頁數(shù):29

摘  要
隨著網(wǎng)絡(luò)技術(shù)的發(fā)展，網(wǎng)絡(luò)通信已經(jīng)越來越重要。而網(wǎng)絡(luò)通信的實現(xiàn)，必然離不開網(wǎng)絡(luò)協(xié)議。網(wǎng)絡(luò)協(xié)議是一套傳遞信息、管理信息的規(guī)則。通過這套規(guī)則，計算機(jī)之間才能相互通信。目前,一些起到平臺作用的通信協(xié)議已趨于完善，如TCP、UDP和ICMP等。它們是以IP數(shù)據(jù)包為載體（IP頭+TCP/UDP/ICMP頭+數(shù)據(jù)）的。控制管理模塊的主要目標(biāo)是管理和發(fā)送控制信息，在ICMP協(xié)議的基礎(chǔ)上，模擬出一套自定義的規(guī)則，用于實現(xiàn)簡單的網(wǎng)絡(luò)控制。具體實現(xiàn)是通過VC 6.0創(chuàng)建一個對話框工程，并采用RAW SOCKET技術(shù)完成ICMP數(shù)據(jù)包的發(fā)送和接收，以ICMP的數(shù)據(jù)部分作為本協(xié)議實現(xiàn)的載體，即IP頭+ICMP頭+數(shù)據(jù)（自定義的簡單協(xié)議）的數(shù)據(jù)包形式實現(xiàn)不同計算機(jī)之間的通信，從而達(dá)到網(wǎng)絡(luò)控制的目的。通過測試，該模塊實現(xiàn)了控制信息的管理和發(fā)送。

關(guān)鍵詞：ICMP；RAW SOCKET；網(wǎng)絡(luò)協(xié)議；數(shù)據(jù)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  錄

1 引言 1
1.1 課題背景 1
1.2 國內(nèi)外研究現(xiàn)狀 1
1.3 本課題研究的意義 1
1.4 本課題的研究方法 2
2 TCP/IP概述 2
2.1 概念 2
2.2 TCP/IP分層結(jié)構(gòu) 2
2.3 數(shù)據(jù)封裝格式 3
3 ICMP概述 4
3.1 ICMP介紹 4
3.2 ICMP報文格式 5
3.3 ICMP報文的類型 5
3.4 ICMP的重要性簡介 7
4 網(wǎng)絡(luò)套接字 7
4.1 套接字概述 7
4.2 Winsock中的幾個基本概念 9
4.2.1 Winsock 9
4.2.2 阻塞和非阻塞 9
4.2.3 字節(jié)順序 9
4.2.4 客戶機(jī)/服務(wù)器模型 9
4.3 Winsock編程原理 10
4.3.1 Winsock的啟動和終止 10
4.3.2 錯誤檢查和控制 11
4.3.3 Winsock編程模型 11
5 控制協(xié)議的模擬實現(xiàn) 15
5.1 課題的具體要求 15
5.2 課題的實現(xiàn)重點 15
5.3 可視化界面的具體實現(xiàn) 16
5.3.1 思考過程 16
5.3.2 幾種控件的具體實現(xiàn) 16
5.4 ICMP類的核心實現(xiàn) 17
5.4.1 在工程文件中插入ICMP，編寫IP和ICMP頭結(jié)構(gòu) 17
5.4.2 對Winsock進(jìn)行初始化 18
5.4.3 創(chuàng)建一個原始套接字，填充地址結(jié)構(gòu) 18
5.4.4 填充數(shù)據(jù) 19
5.4.5 發(fā)送控制信息 19
5.5 工程文件的組成 19
5.6 控制協(xié)議的簡單設(shè)計 19
5.7 模擬環(huán)境 20
5.7.1 硬件環(huán)境 20
5.7.2 軟件環(huán)境 20
5.8 操作過程 20
結(jié)    論 22
參考文獻(xiàn) 22
致    謝 23
聲    明 24