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研究生:林欽漢
論文名稱:網路位址轉譯環境下移動式網際網路通訊協定之研究
論文名稱(外文):Studying on IP Mobility under Network Address Translation Environment
指導教授:劉懷仁劉懷仁引用關係
學位類別:碩士
校院名稱:中華大學
系所名稱:資訊工程學系碩士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2003
畢業學年度:91
語文別:中文
論文頁數:60
中文關鍵詞:移動式網際網路通訊協定網路位址轉譯應用式閘道網際網路通訊協定行動化
外文關鍵詞:Mobile IPNATApplication GatewayIP Mobility
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近年來行動上網的需求越來越普遍,另外IP位址不足的問題也為人們所重視;然而當Mobile IP與NAT技術的整合過程中,我們發現一些問題,在Mobile IP中,行動裝置(mobile node)在註冊(Registration)時,行動裝置必須額外設定HA(home agent)的公有位址(public address),在整個行動裝置移動過程中,顯得十分不方便。
為了解決上述的問題,實現NAT的環境下可以達成IP行動化(IP Mobility),在本篇論文中,嘗試提出另一種全新的架構,參考Mobile IP與NAT的技術,做一些架構上的調整,並引進應用式閘道(Application Gateway)的機制,讓行動裝置可以在不同的NAT環境下移動,並且在移動的過程中,依舊保持資料的連線,不會造成資料的流失,而且不用特別去做額外的手動設定,讓整個設計具有更高的可行性。
The trend of using Internet is growing rapidly. To cope with the IP depletion, NAT is proposed to solve this problem. In the other hand, there are more devices with mobility capability in the world. It seems IP mobility will be an important issue in the future. Mobile IP is one possible solution which recognized by most people for the IP mobility.
But when we try to integrate Mobile IP technique with NAT technique, we encounter some problems. It is inconvenient using Mobile IP under NAT environment. Because mobile node must specify the public address of home network manually when it moves to the foreign network. And there are still some other problems.
In this thesis, we try to propose a new framework which can provide IP mobility in NAT environment. We design a system framework referred to Mobile IP and NAT techniques. And adjust some parts of the framework. As the result, mobile node can roam under NAT environment and keep on the data communication in the processing. Data will be not loss without adjustment manually. So the whole system will be more feasible in this manner.
目錄
ABSTRACT I
摘要 II
致謝辭 III
目錄 IV
圖片目錄 VI
表格目錄 VII
1. 簡介 1
2. 相關技術 3
2.1. NAT(NETWORK ADDRESS TRANSLATION) 4
2.1.1. 背景 4
2.1.2. 概觀 5
2.1.3. 運作方式 5
2.2. MOBILE IP 7
2.2.1. 背景 7
2.2.2. 新增的結構實體(Architectural Entities) 8
2.2.3. 協定概觀 9
2.3. 應用式閘道(APPLICATION GATEWAY) 14
2.3.1. 概觀 14
2.3.2. 運作流程 14
2.3.3. 優點 15
2.4. MOBILE IP + NAT 16
3. IP MOBILITY UNDER NAT 19
3.1. 問題描述 19
3.2. 解決方法 20
3.2.1. 源起 20
3.2.2. 系統元件 21
3.2.3. 傳送模式 23
3.2.4. 資料傳送細部流程 25
3.2.5. 行動裝置移動 27
3.2.6. 行動裝置註冊程序 28
3.3. 延伸討論 30
3.3.1. 行動裝置移動連線中斷的問題 30
3.3.2. 多個行動裝置存在相同網路時的問題 32
3.3.3. 一個完整的範例 37
4. 系統實作 41
4.1. 問題與解決 41
4.2. 系統硬體環境 44
4.3. 資料結構 46
4.4. 模式轉換 48
4.5. 系統運作流程 50
4.6. 比較與分析 52
4.7. 系統流程圖 54
4.7.1. Ra主要系統流程(RaMain) 54
4.7.2. Ra註冊服務程式(RaRegi) 55
5. 結論 56
參考資料 58
中英文名詞對照索引表 59
1.K. Egevang, P. Francis, “The IP Network Address Translator (NAT),” RFC 1631, May 1994
2.P. Srisuresh M. Holdrege Lucent Technologies, “IP Network Address Translator (NAT) Terminology and Considerations,” RFC 2663 August 1999
3.C. Perkins, Editor, “IP Mobility Support,” RFC 2002, October 1996.
4.Kato, T.; Idoue, A.; Yokota, H., “Mobile IP Using Private IP Addresses,” Computers and Communications, 2001. Proceedings. Sixth IEEE Symposium on , 2001 Page(s): 491 -497
5.Idoue, A.; Yokota, H.; Kato, T., “Mobile IP Network Supporting Private IP Addresses Utilizing Regional Registration and NAT function”, Parallel and Distributed Systems, 2001. ICPADS 2001. Proceedings. Eighth International Conference on , 2001 Page(s): 141 -146
6.M. Holdrege and P. Srisuresh, “Protocol Complications with the IP Network Address Translator,” RFC 3027, January 2001
7.Shiuh-Pyng Shieh, Fu-Shen Ho, Yu-Yun Huang, and Jia-Ning Luo, “Network Address Translators: Effects on Security Protocols and Applications in the TCP/IP Stack,” IEEE Internet Computing, November 2000
8.John Wack; “Introduction to the Internet and Internet Security,” http://csrc.nist.gov/publications/nistpubs/800-10/node52.html, Feb 1995
9.W. Richard Stevens, “TCP/IP Illustrated, Volume 1”, Addition-Wesley 1994
10.W. Richard Stevens, “Unix Network Programming Networking APIs: Sockets and XTI Volume 1”, Prentice Hall PTR 1998
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