局域網(wǎng)抓包軟件的設(shè)計與實(shí)現(xiàn)

論文字?jǐn)?shù):11083,頁數(shù):29

摘  要
隨著網(wǎng)絡(luò)技術(shù)的不斷發(fā)展，社會進(jìn)入了一個信息爆炸的時代，世界也由于網(wǎng)絡(luò)而變小，人們通過各種技術(shù)和工具使交流突破了空間的限制。在網(wǎng)絡(luò)技術(shù)發(fā)展與普及的同時，網(wǎng)絡(luò)安全問題引起了人們的廣泛關(guān)注。因此，研究并開發(fā)出一種能夠有效地實(shí)時捕獲網(wǎng)絡(luò)信息的系統(tǒng)具有極其重要的意義。基于這一情況，本論文針對網(wǎng)絡(luò)數(shù)據(jù)的捕獲與數(shù)據(jù)包信息分析等問題進(jìn)行了深入的探討和研究。本論文逐一介紹了信息捕獲中的相關(guān)技術(shù)及需求分析，在系統(tǒng)設(shè)計中對數(shù)據(jù)包捕獲模塊、解碼數(shù)據(jù)包模塊和數(shù)據(jù)庫信息模塊的實(shí)現(xiàn)進(jìn)行了詳細(xì)講述。通過運(yùn)用WinPcap開發(fā)包實(shí)現(xiàn)網(wǎng)絡(luò)數(shù)據(jù)包的捕獲，利用TCP/IP 協(xié)議的封裝理論和自下而上的分析實(shí)現(xiàn)了數(shù)據(jù)包信息的分析，并且將分析出來的信息存入數(shù)據(jù)庫。另外，還能實(shí)現(xiàn)一些功能，如對指定的IP地址進(jìn)行數(shù)據(jù)包的捕獲，對捕獲結(jié)果進(jìn)行顯示等。

關(guān)鍵詞：WinPcap；數(shù)據(jù)捕獲；信息分析；局域網(wǎng)

The Design and Implementation of LAN Information Capture Software
Abstract
As development of the network and technology, the society comes into a age of information explosion. Due to the network, the world has become smaller, and people use all kinds of technologies and tools to break through the limitation of communication. The network security has been widely concerned followed by the development and universal of the network technology. Therefore, it is great significance that an effective real-time interception network information system is studied and developed. Based on this situation, this thesis in-depth studies to capture the network data and so on. Besides, it introduces relative technology and the needs information capture. The realization of the data capture module, data packet decoded module and database information module is displayed for detail in the system's design. The network data packet is captured through WinPcap, some functions has been realized, such as network data packet capture, data packets of information analysis by using TCP / IP protocol encapsulation theory and bottom-up, and will analyze the information stored in the database. Simultaneously, this software would also increases some functions, such as data packet capture by the IP address, make the results and statistics，display the results of data packet capture and so on.

Key words: WinPcap; data capture; information analysis ; LAN

目  錄

1 引言 1
1.1 課題背景及意義 1
1.2 本課題研究的相關(guān)技術(shù)及方法 1
1.3 Visual C++ 6.0 1
1.4 Winpcap簡介 2
2 基于信息捕獲的相關(guān)理論基礎(chǔ) 4
2.1 TCP/IP協(xié)議 4
2.2 數(shù)據(jù)封裝與分用過程 6
2.3 IP協(xié)議 7
3 需求分析 9
3.1 功能需求 9
3.2 性能要求 10
4 局域網(wǎng)信息捕獲器的設(shè)計 10
4.1 功能概述 10
4.2 系統(tǒng)功能模塊的設(shè)計 11
4.2.1 數(shù)據(jù)包捕獲模塊 11
4.2.2 數(shù)據(jù)分析模塊實(shí)現(xiàn) 13
4.2.3 數(shù)據(jù)庫模塊的實(shí)現(xiàn) 16
4.3 用戶界面模塊 19
5 局域網(wǎng)信息捕獲測試和測試結(jié)果 20
5.1 測試環(huán)境 20
5.2 測試結(jié)果 20
結(jié)    論 22
參考文獻(xiàn) 23
致    謝 24
聲    明 25