4. Presentation Outline . 1.Objective of the Paper . 2 .Introduction to the Problem . 3.Proposed Methodology. 5.Results. 6.Conclusions. 7.References . 01/28/11 ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
23. 01/28/11 Figure-6: Translation of IPv6 to IPv4 Header. Translation of IPv4 to IPv6 Header . ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
24. Presentation Outline 1.Objective of the Paper. 2.Introduction to the Problem . 3 . Proposed Methodology. 4.Results. 5.Conclusions. 6.References 01/28/11 ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
25. Proposed Methodology BD-SIIT Algorithms. 1.IPv4 to IPv6 Header Translation or Vice versa Algorithms. 2.IPv4 to IPv6 Protocol Translation Algorithms . 01/28/11 ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
46. Working Methodology of NAT-PT . Fig.3.Communication between IPv4/IPv6 and IPv6/IPv6. 01/28/11 ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
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49. Limitations of NAT-PT . 1.NAT-PT is the lack of end-to-end security . 2.NAT-PT performs address translation , applications that carry the IP addresses in the higher layers will not work . 3.NAT-PT does not supports the communication between IPv4 networks and IPv6 networks with in a same network . 01/28/11 ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
50. Comparison and Contrast between BD-SIIT and NAT-PT . 01/28/11 BD-SIIT Network model . ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
51. Performance evaluation Metrics In this Paper we have calculated three performance evaluation metrics. 1.End to End delay 2.Throughput 3.Round trip time(RTT) N rec 1.Mean End to End delay= ∑ i=1 EEDi/Nrec where EEDi = Tdi- Tsi where EEDi is the end to end delay of ith packet. Tsi is the Source packet i created and Tdi is the Destination packet which is created at Destination. Nrec is the total number of packets received at Dest host and Mean EED is the mean value of each communication session 01/28/11 ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
52. The mean throughput for a sequence of packets of specific size is calculated by using equations 1 and 2. MeanThr = Σ N j =1 Thrj /N -------------(1) where Thr=Packetsreceived(Pr)/Packets generated(Pg)*100%.--------------(2) Where Thrj is the value of the throughput when the packet j is received at intermediate device like DSTM gateway,BD-SIIT Gateway,v4/v6 Router and N is the number of received packets at intermediate device,Pr is the no of packets received at intermediate device and Pg is the number of packets created by source host . 01/28/11 ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
58. 01/28/11 Questions? “ The difference between theory and practice is even larger in practice than in theory [...]” ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
59. References [ 1].S.Deering and R. Hinden “Internet Protocol Version 6(IPv6) Specification”, RFC 2460,December 1998 . [2].S.Tanenbaum,“Computer Networks”,Third Edition, Prentice Hall Inc.,1996, pp. 686,413- 436,437-449 . [3].Behrouz A.Forouzan,Third Edition,“TCP/IP Protocol Suite” . [4].Kurose.J. & Ross.K.(2005) Computer Networking:A top-down approach featuring the Internet.3 rd ed,(Addison Wesley). [5].Gilligan.&Nodmar.E.(1996)Transition Mechanisms for IPv6 Hosts and Routers.RFC 1933,APRIL 1996 . [6].E.Nordmark,”Stateless IP/ICMP Translator (SIIT)”.RFC 2765,Feb2000 . 01/28/11 ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
60. [7].C.Huitema ,R.Austein,S.Satapati,R.Van der Pol,“Evaluation of IPv6 transition mechanisms for unmanaged networks “,RFC 3904,September 2004 . [8].Okazaki,A Desai,“NAT-PT Security Considerations”(June2003),at http://www.ietf.org/internetdrafts/draft-okazaki-v6ops-natpt- Security-00.txt . [ 9].Carpenter, B. and K.Moore,"Connection of IPv6 Domains via IPv4 Clouds",RFC 3056,February 2001 . [10].Thomson,S. and T.Narten,"IPv6 Stateless Address Auto configuration",RFC 2462,December 1998 . [11].J.Bound .Assignment of IPv4 Global Addresses to IPv6 Hosts(AIIH) . [12].An overview of the introduction of IPv6 in the Internet”, W.Biemolt et al .Trabajo en curso . [13].RFC 2765.”Stateless IP/ICMP Translation algorithm(SIIT) “,E.Nordmark.Febrero 2000 . [ 14].RFC2766.“Network Address Translation–Protocol Translation(NAT-PT)”,Tsirtsis,P.Srisuresh,February 2000 . 01/28/11 ICCANA-2011,Jan 7-8th ,NAMAIT,Nitte,DK,India.
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