VPN技術分析與實現(xiàn)
15900字    30頁

摘要：隨著Internet已成為全社會的信息基礎設施，企業(yè)端應用也大都基于IP，在Internet上構筑應用系統(tǒng)已成為必然趨勢，因此基于IP的VPN業(yè)務獲得了極大的增長空間。本文介紹了虛擬專用網(wǎng)的技術原理和特點，以及利用VPN技術構建企業(yè)虛擬專用網(wǎng)的優(yōu)勢，提出利用公網(wǎng)的資源作為企業(yè)各級單位間傳輸信息的通道，在建設內(nèi)部網(wǎng)實現(xiàn)信息安全共享的同時降低建設和維護成本，因此具有很好的應用前景。文章首先對VPN的技術的發(fā)展、優(yōu)點等進行了分析；其次闡述了VPN的解決方案；最后，結合一個證券公司的實例說明企業(yè)VPN網(wǎng)絡的具體實現(xiàn)。
關鍵詞：虛擬專用網(wǎng)；虛擬局域網(wǎng)；網(wǎng)絡安全；隧道技術
VPN technology analysis and implementation
Abstract: As the Internet has become a society-wide information infrastructure, enterprise-based applications are mostly IP, to build applications on the Internet have become an inevitable trend, so the service which based on the IP-VPN was great room for growth. This paper presents a virtual private network technology principles and characteristics, and presents the advantages that the companies use the VPN technology to build the virtual private network, by using public networks at all levels of resources as a business unit of the channel to transmit information, in building internal networks to share information security At the same time reduce the cost of construction and maintenance, so VPN has good prospects. The article first tell us something about the development of technologies VPN and other advantages of an analysis ; and secondly about the VPN solutions; Finally, it combinates a securities company examples of the specific enterprise VPN network to achieve.
Key words: VPN; VLAN; network security; tunnel

 
目　錄
1 VPN技術概述 1
1.1 VPN產(chǎn)生的背景 1
1.2 VPN的定義 1
1.3 VPN的特點 2
1.4 VPN帶來的好處 3
2 隧道技術 7
2.1 概述 7
2.2 隧道協(xié)議 7
2.3 隧道技術實現(xiàn)過程 10
2.4 隧道中的源和目標IP地址 11
3 VPN中的安全技術 12
3.1加解密技術 12
3.2密鑰管理技術 12
3.3身份認證技術 13
4 VPN解決方案 14
4.1遠程訪問虛擬網(wǎng) 14
4.2 企業(yè)內(nèi)部虛擬網(wǎng) 15
4.3 企業(yè)擴展虛擬網(wǎng) 16
5 VPN網(wǎng)絡方案設計 17
5.1 需求分析 17
5.2 拓撲設計 18
5.3 設備選型 18
5.4 IP地址分配 20
5.5 權限設置 20
5.6 具體配置 21
結束語 27
參考文獻 28
致    謝 29