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研究生： 韓忠勤
Dennis Han
論文名稱： AAA伺服器建置及其在移動式網路上之效能研究
Construction of AAA Server and its Performance Study in Mobile Networks and Configuration
指導教授： 陳彥文
Yen-Wen Chen
口試委員:
學位類別： 碩士
Master
系所名稱： 資訊電機學院 - 資訊工程學系
Department of Computer Science & Information Engineering
畢業學年度： 91
語文別： 英文
論文頁數： 69
中文關鍵詞： 網路計費 、移動式IP 、AAA協定
外文關鍵詞： AAA Protocol, Internet Accounting, Mobile IP
相關次數： 點閱：9  下載：0 
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    • 網際網路以及行動電話在人們的生活中已經是一個不可或缺的角色，所提供的服務也愈來愈多樣化。對網路服務提供者或是電信業者來說，如何管理廣大的使用者資訊變成一個很大的問題。為了滿足此需求，IETF (Internet Engineering Task Force) 制定了AAA 協定希望能解決這個問題。
    移動式IP同樣也是最近熱門的研究項目之一。而在移動式網路內加入AAA伺服器，配合移動式IP之註冊流程與AAA伺服器整合運作，可增加移動式網路的安全性，且可統計使用者所使用的資源並加以計費。
    本論文即是探討在將移動式網路與AAA伺服器整合的架構下，AAA伺服器的效能表現。在分析了AAA伺服器的效能後，本論文提出了以兩個較低效能的伺服器來取代原本的AAA伺服器，分別為認證 (Authentication) 伺服器與計費 (Accounting) 伺服器。討論伺服器的服務效能，並以模擬方式探討個別的認證伺服器及計費伺服器在處理效率上之比較。

    Internet and mobile phone have played important roles in human’s life. The service provided over them has become more variously. From ISP (Internet Service Provider) and telecommunication operators’ perspectives, how to manage numerous users has become a major problem in the deployment of the Internet. In order to meet this requirement, IETF has proposed AAA protocol to solve the problem.
    Mobile IP is also a hot research area recently. Adding AAA server into the mobile network and integrating the registration procedures with AAA server can enhance the security of mobile network and even gather the information of resource used by users for charging.
    In the thesis, performance of the AAA server in an integration of mobile network and AAA mechanism will be examined. After examination of the performance of the AAA server, two lower grade servers model are proposed to replace the original one, they are authentication server and accounting server, respectively. Experimental results for single AAA server and two separate servers (one for authentication and the other one for accounting) are examined through simulation to compare their performance.

    中文摘要 I Abstract II Chapter 1 1 Introduction 1 1.1 Background and Motivation 1 1.2 Literature Survey 2 1.3 Organization of the Thesis 3 Chapter 2 4 AAA Protocols and Mobile IPv4 4 2.1 Accounting Protocols 4 2.1.1 RADIUS Protocol 4 2.1.2 Diameter Protocol 8 2.2 Internet Accounting 13 2.2.1 Accounting Overview 13 2.2.2 Internet Accounting vs. Telephony Accounting 15 2.3 Mobile IP 15 Chapter 3 19 Integration of Mobile IP and AAA Protocol 19 3.1 Introduction 19 3.1.1 Basic Model 20 3.1.2 Other Scenarios 22 3.1.3 Key Distribution Center 23 3.2 Registration Procedure 25 3.2.1 Mobile IP Registration with AAA Support 25 3.2.2 Handover Scenarios with AAA Support 27 3.2.3 Vertical Handover 28 3.2.4 Horizontal handover: intra-domain mobility 29 3.2.5 Horizontal handover: inter-domain mobility 31 3.3 Accounting Model 32 Chapter 4 36 Construction and Configuration of AAA Environment 36 4.1 Installation and Configuration of AAA Environment 36 4.2 Testing of the FreeRADIUS Server 39 Chapter 5 41 Performance Simulations of AAA Server in Mobile Network 41 5.1 Simulation Architecture 41 5.1.1 Parameter Assumption 42 5.1.2 Simulation Cases 43 5.2 Experimental Result and Analysis 46 5.2.1 Estimation of generated Packets 46 5.2.2 Simulation Results of Case 1 and Case 2 48 5.2.3 Simulation Results of Case 3 and Case 4 51 5.2.4 Simulation Results of Case3-high, Case3- medium and Case3-low 54 5.3 Separation of Authentication Server and Accounting Server 55 5.3.1 Relative ratio of Computing Power between two Servers 56 5.3.2 Simulation Results of Separation Servers 58 Chapter 6 65 Conclusion and Future Work 65 Reference 67

    [1] http://www.ietf.org/html.charters/aaa-charter.html
    [2] http://www.irtf.org/charters/aaaarch.html
    [3] D. Levi, P. Meyer, B. Stewart, “Simple Network Management Protocol (SNMP) Applications “ RFC 3413, December, 2002.
    [4] D. Durham, Ed., J. Boyle, R. Cohen, S. Herzog, R. Rajan, A. Sastry, “The COPS (Common Open Policy Service) Protocol” RFC 2748, January, 2000.
    [5] C. Rigney, S. Willens, A. Rubens, and W. Simpson. “Remote Authentication Dial In User Service (RADIUS)”, RFC 2865. June, 2000.
    [6] P. R. Calhoun. J. Loughney. “Diameter base Protocol” Internet Draft, <draft-ietf-aaa-diameter-17.txt>, December, 2002.
    [7] S. Glass, T. Hiller, S. Jacobs, and C. Perkins. “Mobile IP Authentication, Authorization and Accounting Requirements”, RFC 2977, October, 2000.
    [8] IEEE Std 802.1X-2001. “Port-Based Network Access Control,” Institude of Electrical and Electronics Engineering, Inc. June, 2001.
    [9] Ala-Laurila, J.; Mikkonen, J.; Rinnemaa, J. “ Wireless LAN access network architecture for mobile operators “Communications Magazine, IEEE , Volume: 39 Issue: 11 , November, 2001 Page(s): 82 -89
    [10] C. Rigney,.S. “RADIUS Accounting”, RFC 2866. June, 2000.
    [11] http://www.untruth.org/~josh/security/radius/radius-auth.html
    [12] B. Aboba “Authentication, Authorization and Accounting (AAA) Transport Profile” Internet Draft, <draft-ietf-aaa-transport-12.txt>, January, 2003
    [13] P. R. Calhoun. T. Johansson. “Diameter Mobile IP Application” Internet Draft, <draft-ietf-aaa-diameter-mobileip-14.txt>, April, 2003
    [14] P. R. Calhoun. G. Zorn. D. Spence. “Diameter Network Access Server Application” Internet Draft, February, 2003.
    [15] R. Stewart et al., “Stream Control Transmission Protocol”, RFC 2960. October, 2000.
    [16] http://www.ietf.org/html.charters/ipsec-charter.html
    [17] T. Dierks, C. Allen, “The TLS Protocol Version 1.0”, RFC 2246, January, 1999
    [18] Pras, A.; van Beijum, B.-J.; Sprenkels, R.; Parhonyi, R.; “Internet accounting” IEEE Communication Magazine, Volume: 39 Issus 5, May, 2001 Page(s): 108-113
    [19] C. Perkins, “IP Mobility Support”, RFC 3344, August, 2002
    [20] R. Ramjee. “HAWAII: A Domain-based Approach for Supporting Mobility in Wide-area Wireless Networks:, Proc. Int’l. Conf. Netwrok Protocols, November, 1999
    [21] A. Campbell, “Design, Implementation and Evaluation of Cellular IP”, IEEE Personal Communication, vol.7 no.4, August, 2000
    [22] Grilo A., Estrela P., Nune M., “Terminal Independent Mobility for IP (TIMIP)” <draft-estrela-timip-01.txt>. January, 2003
    [23] C. Perkins, D. B. Johnson, “Route Optimization in Mobile IP” Internet Draft <draft-ietf-mobileip-optim-12.txt>
    [24] P. R. Calhoun, C. E. Perkins “Diameter Mobile IP Application” Internet Draft <draft-ietf-aaa-diameter-mobileip-14.txt> April 2003
    [25] Cappiello, M.; Floris, A.; Veltri, L. “Mobility amongst heterogeneous networks with AAA support”; Communications, 2002. ICC 2002. IEEE International Conference on , Volume: 4 , 2002 Page(s): 2064 -2069
    [26] P. R. Calhoun, S. Farrell, W. Bulley “Diameter CMS Security Application”, Internet Draft <draft-ietf-aaa-diameter-cms-sec-04.txt> March, 2002
    [27] Salkintzis, A.K.; Fors, C.; Pazhyannur, R.; “WLAN-GPRS Integration for Next-Generation Mobile Data Networks”, Wireless Communications, IEEE, Volume: 9 Issue: 5, October 2002 Page(s): 112 -124
    [28] http://www.freeradius.org/
    [29] http://www.dialways.com/
    [30] http://www.enterasys.com/products/vpn/APS-x000/

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