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The Research on Address Translation Protocol NAT-PT

Author: LiRuiJiang
Tutor: HouZhengFeng
School: Hefei University of Technology
Course: Applied Computer Technology
Keywords: IPv6 Transitional mechanism NAT-PT DNS-ALG Protocol translation
CLC: TP393.04
Type: Master's thesis
Year: 2008
Downloads: 94
Quote: 1
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Abstract


IPv6 is the next-generation Internet protocol developed by the IETF to replace the currently address the growing shortage of IPv4 protocol . IPv6 can solve the problem of the lack of the address , but the transition from IPv4 to IPv6 also take a long time , during this period , all new IPv6 network and existing IPv4 network communication , and NAT-PT is a solution of pure IPv6 network and IPv4-only network to communicate with each other transition mechanisms . NAT-PT transition mechanism for address translation and protocol translation functions . NAT-PT configuration NAT-PT gateway . NAT-PT, without any changes to the existing network can communicate with each other between Ipv4 and Ipv6 . This article describes several IPv6 transition technology analysis and comparison of each performance , a detailed analysis of the NAT-PT technology principle and communication process . On this basis a NAT-PT gateway design . Address translation, protocol translation and DNS-ALG, and , in the process of implementation , omissions based SIIT protocol translation algorithms improve , at the same time , the security of NAT-PT analysis and suggestions for improvement . The article describes the implementation of the protocol translation module , including the translation of Ipv4/IPv6 packet , ICMPv4/ICMPv6 message translation , as well as modifications of the head of the upper layer protocol packets . Finally, NAT-PT gateway design verification . The experimental results show that , the gateway to the dynamic address allocation , protocol translation , Ipv4 and IPv6 communications .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Computer network > General issues > Communication protocols, communication protocols
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