To see the other types of publications on this topic, follow the link: IPv6 transition.

Dissertations / Theses on the topic 'IPv6 transition'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 18 dissertations / theses for your research on the topic 'IPv6 transition.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Galla, Lokesh, and Suyesh Regmi. "IPv4-IPv6 Transition Techniques : IPv4 exhaustion." Thesis, Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-15999.

Full text
Abstract:
IPv4 exhaustion leads to new IP version, which is IPv6. When changing a network from IPv4 to IPv6, Internet networks will be hybrid by using both IPv4 networks and IPv6 networks. This thesis defines the essential information about compatibility between IPv4-IPv6 mechanisms. Dual Stack is one of the IPv4-IPv6 compatible mechanism by running both IPv4 stack and IPv6 stack in a single node. 6 to 4 tunneling mechanism encrypts IPv6 packets in IPv4 packets to make communications possible, from IPv6 network over IPv4 network. Dual Stack & Tunneling mechanisms were completely implemented later in this thesis work. This thesis examine transmission latency, throughput, jitter and delay from end to end, through empirical observations of both Dual Stack and tunneling mechanisms by using TCP/UDP as transport protocols in different scenarios. This thesis work contains some useful strategic point of view before trying to deploy IPv6 in a network.
APA, Harvard, Vancouver, ISO, and other styles
2

Johansson, Elias. "Evaluation of prerequisites for an IPv4 to IPv6 transition." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-31819.

Full text
Abstract:
The increase in the number of internet capable devices has starved the Internet Protocol Version 4 (IPv4) address space. IPv6 is likely to replace IPv4 in the future because of an address space much greater than before. This thesis work focuses on how to transition from IPv4 to IPv6 for a specific network. This work includes a study of the most common transitioning techniques and an investigation of the characteristics of the network in question, Office IT-partner’s network. The main problem of the thesis is, based on the knowledge of existing transitioning techniques, to find the best fitting solution. The three best solutions were chosen for theoretical testing on the network. The solutions were tested with focus on network services, addressing, simplicity and future completion of the transition. The testing made it clear that no solution alone solves all problems, but dual stack together with translation satisfy the most requirements. The conclusion drawn from the literature study and the testing is that transitioning to IPv6 without the use of translation causes many complex problems. To successfully transition while providing IPv4 connectivity for WAN nodes, some kind of translation is almost required. A solution consisting of dual stack and Network Address Translation 64 (NAT64) was chosen because of its ability to make the transition easy and as user-friendly as possible. It could also be started right away and completed at a pace of own choice. The lack of ability to translate stateful from IPv4 to IPv6 together with the lack of availability for IPv4 nodes made up the decision of upgrading the internal network before upgrading the internet edge.
APA, Harvard, Vancouver, ISO, and other styles
3

Kintu, Zephernia. "Migrating to IPv6." Thesis, KTH, Kommunikationssystem, CoS, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-96355.

Full text
Abstract:
Today hundreds of millions of users are interconnected by communication channels allowing them to communicate and to share information. These users and the devices that interconnect them are what constitute the Internet. The Internet is a network of networks with a myriad of computer devices, including smartphones, game consoles (handheld/stationary), IP televisions, tablet computers, laptop computers, desktop computers, palmtop computers, etc. This network of computers flourishes because of careful planning and maintenance by Internet Service Providers (ISPs), backbone network operators, and others. An additional factor that enables the Internet to operate is the four logical layers of abstraction in the TCP/IP protocol stack. One of these layers is the layer responsible for the transfer of datagrams/packets from one host to another. This layer is known as the Internet Protocol (IP) layer. However, as originally conceived a 32 bit address was thought to be more than enough. The space of IP addresses was distributed among different regions rather disproportionately, driven largely by the numbers of addresses that were requested (ordered in time). Today after a series of inventions in the field (such as the world wide web) and a rapid growth in the number of devices that wish to connect to the Internet the available unassigned address space has largely been depleted. Regions with large populations, but with few assigned blocks of IP addresses have begun to exhaust all their assigned addresses, while other regions face the same fate in a few months. The need for a larger address space was predicted years ago and the next generation addressing scheme was devised as part of the development of Internet Protocol Version 6 (IPv6). Countries such as China and India had few IPv4 addresses and they have been forced to transition to IPv6 rather quickly. Today a significant number of the users in these countries are unable to communicate over IPv4 networks. The purpose of this thesis project is to discuss the transition to IPv6 and the transition to this new addressing scheme. IPv6 provides a much larger address space, along with a number of additional improvements in comparison to the previous version of IP (i.e., IPv4). Despite the advantages of adopting IPv6, the incentive to transition is low amongst well established businesses, especially those in regions that received a considerable number of IPv4 addresses initially. Instead different techniques have been employed in these places to mitigate the problem of IPv4 address exhaustion. It is also probable that this reluctance is a way to keep competing businesses out of the market for a while longer. This thesis aims to facilitate the transition from IPv4 to IPv6.<br>Miljontals användare är idag sammankopplade genom kommunikationskanaler som tillåter utbyte av information. Datornätet Internet utgörs av dessa användare och de enheter som sammanbinder dem. Internet är ett nätverk av nätverk med en myriad av olika datorutrustning såsom; spelkonsoler, smartphones, bärbara datorer, stationära datorer, handdatorer, även IPTV, kylskåp, tvättmaskiner, osv. Detta nätverk blomstrar på grund av noggrann planering och underhåll av internetleverantörer, nätoperatörer och andra. En ytterligare faktor som gör det möjligt för Internet att fungera är de fyra logiska skikt av abstaktion i TCP/IP-protokollstacken, en standard för datakommunikation. Ett av dessa skikt ansvarar för överföring av datapaket från en ändpunkt till en annan. Detta skikt är kallad Internet Protocol(IP) layer. Ursprungligen ansågs en 32-bitars adress vara mer än tillräcklig. Dessa IP-adresser delades ut till olika regioner rätt så oproportionerligt till stor del beroende på antalet adresser en region begärt. Idag efter en rad uppfinningar inom området(såsom webben/world wide web) och en snabb tillväxt i antal enheter som önskar ansluta sig till Internet är det tillgängliga adressutrymmet i stort sett slut. Regioner med stor befolkning men med få tilldelade block av IP-addresser har börjat göra slut på sina tilldelade adresser medan andra regioner står inför samma öde inom några månader. Behovet av ett större adressrymd sågs flera år sedan och nästa generations addresseringsschema utformades som en del av utveckligen, Internet Protocol version 6(IPv6). Länder som Kina och Indien hade ett fåtal IPv4-adresser och de har varit tvungna att övergå till IPv6 ganska snabbt. Idag kan inte ett stort antal användare i dessa länder kommunicera över IPv4-nätverk. Syftet med detta examensarbete är att diskutera övergången till IPv6 samt övergången till detta nya adresseringsschema. IPv6 ger en mycket större adressrymd samt en rad ytterligare förbättringar i jämförelse med den tidigare versionen av IP(dvs IPv4). Trots fördelarna med att övergå till IPv6 är viljan låg bland väletablerade företag, särskilt i regioner som mottagit ett stort antal IPv4-adresser från början. Dessa regioner tillämpar istället olika tekniker för att bromsa utmattningen av IPv4-adresser. Det är också troligt att denna motvija är ett sätt att hålla konkurrerande företag från marknaden ett tag till. Detta examensarbete syftar till att underlätta övergången från IPv4 till IPv6.
APA, Harvard, Vancouver, ISO, and other styles
4

Hult, Yngve, and Patrik Montgomery. "Övergången från IPv4 till IPv6 : En fallstudie om faktorer som påverkar övergångens hastighet." Thesis, Uppsala universitet, Institutionen för informatik och media, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-354989.

Full text
Abstract:
Today the internet is a world wide web connecting billions of devices. All these devices need an IP-address to be able to communicate with one another. With the current version of the internet protocol, IPv4, the address space is limited. To solve this problem a transition to the latest version, IPv6, has begun. But the transition is going slowly partly because of a temporary solution called NAT, Network Addressing Translation. With the help of interviews with highly appointed employees from large IT companies in Sweden, this study examines the impact of factors other than NAT that are affecting the speed of the transition, and why a technically advanced country like Sweden is so far behind in this process. The results show that the demand of the consumers is not high enough and that cost versus incentives is not balanced well enough for a transition to go quicker. But in time the speed will increase and further research could perhaps help the speed of the transition grow.<br>Idag är internet världsomspännande och miljarder av enheter är uppkopplade. Alla dessa enheter behöver en IP-adress för att kommunicera med varandra. Med den nuvarande versionen av internetprotokollet, IPv4, är adressrymden begränsad. För att lösa detta problem har en övergång till den senaste versionen, IPv6, påbörjats. Övergången går dock långsamt bland annat på grund av en temporär lösning kallad NAT, Network Addressing Translation. Med hjälp av intervjuer med högt uppsatta anställda på IT-företag i Sverige undersöker denna studie faktorer utöver NAT som påverkar hastigheten för övergången, och varför ett tekniskt avancerat land som Sverige ligger så långt efter med sin övergångsprocess. Resultaten visar att efterfrågan hos konsumenter inte är hög nog och att kostnad kontra incitament inte är tillräckligt välbalanserat för att övergången ska gå fortare. Med tiden kommer dock hastigheten att öka och vidare forskning skulle kunna hjälpa till att öka hastigheten för övergången ytterligare.
APA, Harvard, Vancouver, ISO, and other styles
5

Perigo, Levi. "An Examination of the Design, Development, and Implementation of an Internet Protocol Version 6 Network: The ADTRAN Inc. Case Study." NSUWorks, 2013. http://nsuworks.nova.edu/gscis_etd/274.

Full text
Abstract:
In this dissertation, the author examined the capabilities of Internet Protocol version 6 (IPv6) in regard to replacing Internet Protocol version 4 (IPv4) as the internetworking technology for Medium-sized Businesses (MBs) in the Information Systems (IS) field. Transition to IPv6 is inevitable, and, thus, organizations are adopting this protocol to be prepared in it becoming the dominant internetworking protocol. The goal of the research was to develop a model for IS specialists to use with MBs in the transition from IPv4 to IPv6. To achieve this goal, the author performed a case study of ADTRAN Inc.'s IPv6 implementation, using the Systems Development Life Cycle (SDLC) framework. The SDLC methodology consists of five phases and was used to support the design, development, and implementation of the ADTRAN Inc. IPv6 solution. For Phase 1, the Research Phase, the author examined business requirements, administered a questionnaire, and recorded participant observation. In Phase 2, the Analysis Phase, the author analyzed the data from Phase 1 and created a functional and nonfunctional requirements list. For Phase 3, the Logical Design Phase, the author developed documentation and diagrams for the IPv6 implementation. In Phase 4, the Physical Design Phase, the author determined what internetworking hardware would be needed and where it should be deployed. For Phase 5, the Implementation Phase, the author completed the IPv6 network implementation. Finally, the author analyzed the data collected from this investigation. The use of the findings, in conjunction with the SDLC methodology, resulted in the ADTRAN Inc. Implementation model, which can be used by MBs of a similar size to ADTRAN Inc., when IPv6 transition initiatives are being considered.
APA, Harvard, Vancouver, ISO, and other styles
6

Perkins, Kyle L., and Michael A. Scott. "The Department of Defense's transition of program of record (POR) systems from Internet Protocol Version Four (IPV4) to Internet Protocol Version Six (IPV6)." Monterey, California. Naval Postgraduate School, 2006. http://hdl.handle.net/10945/10093.

Full text
Abstract:
Joint Applied Project<br>The objective of this Joint Applied Project was to examine the technical, financial, and implementation aspects for DoD transitioning POR systems to IPv6. The research outlines the initial intended useful life and limitations of IPv4 and IPv6. The financial aspects of transitioning to IPv6 are examined from a programs perspective, relative to the Program Objective Memorandum (POM). Implementation of transition strategies and mechanisms are identified and courses of action for implementing the mandatory IPv6 requirement are recommended. The principal finding of this research is that DoD Global Information Grid (GIG) assets must function in a dual IPv4/IPv6 capacity when transitioning to IPv6 in order to maintain the relevance of currently fielded programs. Furthermore, legacy GIG assets should be transitioned using Technology Refresh or Software Block upgrade programs while paying careful attention to the effects the transition has on tactical network operations.
APA, Harvard, Vancouver, ISO, and other styles
7

Šeptun, Michal. "Identita v tunelovaných a překládaných sítích." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2015. http://www.nusl.cz/ntk/nusl-235003.

Full text
Abstract:
This thesis introduces the design and implementation of the extension of the system for lawful interception. The system is developed as a part of the Sec6Net project at FIT BUT and provides a platform for research activities in determining identities in computer networks. Parts which has the task of monitoring changes in a user's identity will be extended, so that the system is able to determine the identity even in the tunneled and translated networks. It describes the problems encountered during implementation and their solutions. There are described mechanisms for tunneling networks, mainly virtual private networks and transition mechanisms for IPv6, IP addresses and NAT variants. In the end the tests of the individual modules are described.
APA, Harvard, Vancouver, ISO, and other styles
8

Pokorný, Jan. "Test výkonnosti NAT64." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2019. http://www.nusl.cz/ntk/nusl-403181.

Full text
Abstract:
Tato práce se zabývá problematikou přechodu mezi IP protokolem verze 4 a IP protokolem verze 6. Přechod je možné řešit více mechanismy a tato práce je zaměřená na přechodový mechanismus Stateful NAT64. Cílem práce je otestovat různé implementace NAT64 a najít vhodnou implementaci pro router NETX. Za cíl bylo stanoveno najít implementaci, která bude dosahovat propustnosti 10 Gbps. Několik NAT64 implementací bylo zkoumáno v testovacím prostředí. Měření probíhalo pomocí nástrojů Iperf a PF_Ring. Bylo změřeno několik různých druhů síťového provozu tak, aby bylo z výsledku patrné, jaký výkonnostní dopad má každá z testovaných implementací. Z naměřených výsledků Jool vyšlo jako nejvhodnější NAT64 řešení. Jool splnil požadovanou propustnost a zároveň kromě stále aktivního vývoje nabízí i další pokročilé vlastnosti. Jool byl integrován do routeru NETX. Byla navrhnuta struktura příkazové řádky pro manipulaci s Jool instancí, která byla posléze implementována jako rozšíření NETX příkazové řádky. Dále byl vytvořen postup distribuce potřebných balíčku skrze balíčkovácí systém RPM, tak aby zapadl do automatizovaného systému platformy NETX.Výsledkem práce je plná podpora přechodového mechanismu NAT64 na platformě NETX dosahující propustnosti blízké 10 Gbps.
APA, Harvard, Vancouver, ISO, and other styles
9

Hart, Peter W. "A management perspective of the Department of Defense (DOD) Internet Protocol Version 6 (IPV6) transition plan, where it is today, and where it needs to be by the year 2008." Thesis, Monterey California. Naval Postgraduate School, 2006. http://hdl.handle.net/10945/2637.

Full text
Abstract:
Approved for public release, distribution unlimited<br>This thesis focused on the management aspects of the DoD IPv6 Transition Plan. It addressed the management required to transition the DoD computer systems from IPv4 to IPv6. The study identified how computer systems will be affected by the transition from IPv4 to IPv6. The advantages, disadvantages, and risks associated with the transition were analyzed to determine potential areas of improvement. The study provided recommendations that can be used before, during and after the transition. This thesis investigated the ramifications of transitioning to IPv6. It compared the Transition Plan to the current state of preparedness by DoD agencies. It determined whether or not IPv6 can be implemented by 2008. When possible, it identified where the DoD will have to concentrate its effort to ensure the transition goes smoothly and on time.
APA, Harvard, Vancouver, ISO, and other styles
10

Duarte, Tomé Araújo. "IPv4 to IPv6 transition : security challenges." Master's thesis, 2013. http://hdl.handle.net/10216/69280.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Duarte, Tomé Araújo. "IPv4 to IPv6 transition : security challenges." Dissertação, 2013. http://hdl.handle.net/10216/69280.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Lin, Chien-Hsiu, and 林建修. "Performance Investigation of IPv4/IPv6 Transition Mechanisms." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/69431795755503135789.

Full text
Abstract:
碩士<br>國立東華大學<br>資訊工程學系<br>91<br>IPv4 to IPv6 transition is a necessary and inevitable process when deploying IPv6-based services across the IPv4 Internet. The transition process is complex, as it has to deal with IPv4-IPv6 interoperability issues. To enable the seamless integration of IPv6 into current networks, several transition mechanisms have been proposed by the IETF Next Generation Transition Working Group. This thesis mainly concentrates on the performance analysis related to the variety of tunneling transition mechanisms with different kinds of network. We explored the impact of these mechanisms on end-to-end applications performance using metrics such as transmission latency, throughput, CPU utilization and packet loss. The tunneling contains configured tunnel, 6to4 tunnel and tunnel broker. We evaluated the performance impact of these mechanisms in a real network site, which includes dual stack routers and end-stations running MS Windows 2003 Server operating system, loaded with dual IPv4/IPv6 stack. The performance analysis in terms of latency, throughput, CPU utilization and loss rate is performed. From the simulation results, the latency of the 6to4 mechanism is better than configured tunnel and tunnel broker at 94.83% and 89.38%, respectively. In the throughput analysis, 6to4 mechanism is also better than configured tunnel and tunnel broker at 48.76% and 42.47%. In the CPU utilization analysis, 6to4 mechanism had to do much more work for every packet sent and received, hence it required a much higher CPU utilization. In the loss rate analysis, we increase the packet size to observe the variation of loss rate, when the packet size is 64 bytes, the loss rate of 6to4 mechanism, configured tunnel and tunnel broker is 1.0%, 1.5% and 1.6%, respectively. When the packet size increases to 1024 bytes, it increases to 4.2%, 5.8% and 6.8%. Finally, the thesis also discusses current IPv6 deployment. One of the biggest challenges in the deployment of IPv6 is how to migrate IPv4-based infrastructures to those supporting IPv6. It is expected to be a long transition period, during which it will be necessary for IPv4 and IPv6 nodes to coexist and communicate with each other. We expect to rely on these transition mechanisms as the Internet shifts from the traditional IPv4 to an IPv6-based Internet while retaining both IPv4 and IPv6 throughout the transition phase
APA, Harvard, Vancouver, ISO, and other styles
13

Lin, Yen-Liang, and 林彥良. "DNS Deployment and Analysis in Transition from IPv4 to IPv6." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/60310756502906812560.

Full text
Abstract:
碩士<br>國立中正大學<br>電機工程研究所<br>92<br>This thesis proposes two methods about transition from IPv4 to IPv6 co-existence environment. One is to reduce DNS query latency in DNS lookup and the other is about TCP connection issues while a client tries to get connection to remote server which IP version is unknown. This thesis also examines the two proposed domain name system standards in IETF. There are two standards for domain name system to support IPv6 addressing. When the Internet moves from IPv4 to a mixture of IPv4 and IPv6 environment, the Internet Domain Name System (DNS) is an essential part. To have a complete DNS hierarchy database is critical. The thesis tries to analyze the two mechanisms, AAAA and A6, by implement IPv6 DNS environment in our lab. We proposed several scenarios for v4 and v6 coexistence environment and show the name resolution latency in our DNS environment. Also we show the new A6 record's features which support hierarchy queries, it can simply replace the address prefixes of an organization, and provide network renumbering friendliness than AAAA. We quantify and compare the new features about AAAA and A6 latency, DNAME, bit-string label representation in reverse lookup. From these measurements, we try to let people understand the differences between the two record types. This paper makes some suggestions on IPv6 DNS deployment The information can provide those network managers who are with experience with v4 DNS. The new IPv6 resource record could add additional query latency in DNS lookup. we try to reduce the time. We present the measurement in section 5.1. From THE measurement in different web servers of countries. Our modified method reduce the DNS AAAA query latency. It save almost more half of the original time. We use parallel send two socket connections to improve the original mechanism. The original mechanism while v4 and v6 co-existence period is to connect the server in sequential order: prefer IPv6 first then IPv4. In the section 5.3, the results of our modified mechanism will decrease average latency of web access from 3.56 to 2.29 second.
APA, Harvard, Vancouver, ISO, and other styles
14

Wu, Tzu-Hsuan, and 吳子玄. "An Effective IPv4-IPv6 Transition Mechanism for Dual-Stack SIP-based Multimedia Applications." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/61965450344561822297.

Full text
Abstract:
碩士<br>國立宜蘭大學<br>資訊工程研究所碩士班<br>100<br>In the current stage of IPv6 (Internet Protocol version 6) VoIP (Voice over IP) deployment, an IPv6-enabled (i.e., IPv4/IPv6 dual-stack) VoIP phone may connect to an IPv4 VoIP phone or an IPv6 VoIP phone. When the IPv4/IPv6 dual-stack VoIP phone initiates a call by sending an IPv6 SIP (Session Initiation Protocol) INVITE message to an IPv4-only VoIP phone, the call cannot be established correctly. To resolve the problem, this paper investigates the server-based solutions such as SIP-ALG, redirect, and the CSCF-translation and this paper proposes an effective client-based solution, where the IPv4/IPv6 dual-stack VoIP phone is slightly modified to carry both IPv4 and IPv6 addresses in the SDP (Session Description Protocol) fields and the SIP server does not require any modification. The paper compares the proposed client-based solution with the server-based solutions in terms of network node modification, call setup complexity, and RTP (Real-time Transport Protocol) transmission latency. This paper also evaluates the PDD (Post Dialing Delay) and SIP server processing time. The results indicate that the proposed client-based solution outperforms the other three server-based solutions.
APA, Harvard, Vancouver, ISO, and other styles
15

Lin, Pin-Jen, and 林品任. "A Performance Study for IPv4-IPv6 Translation on Transition Gateway in IP Multimedia Subsystem." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/58682595414588858143.

Full text
Abstract:
碩士<br>國立交通大學<br>網路工程研究所<br>96<br>Internet Protocol version 6 (IPv6) is adopted by Third-Generation Partnership Project (3GPP) to provide large address space for IP Multimedia Core Network Subsystem (IMS). However, in the early stage of IPv6 deployment, the existing Voice-over-IP (VoIP) networks support Internet Protocol version 4 (IPv4) only. For IPv4-IPv6 interworking between IMS and the existing VoIP networks, the IMS-Application Level Gateway (IMS-ALG) and the Transition Gateway (TrGW) are proposed to translate Session Initiation Protocol (SIP) and Real-time Transport Protocol (RTP) packets, respectively. In this thesis, we focus on the IPv4-IPv6 translation for RTP packets, which is the bottleneck of VoIP performance. Specifically, we developed a TrGW called National Information and Communications Initiative (NICI)-TrGW, and evaluate the performance of NICI-TrGW and the existing solutions (i.e., Portaone-TrGW and Naptd-TrGW) by using the SmartBits. Our study indicates that NICI-TrGW outperforms the existing solutions in terms of three different output measures including packet loss rate, maximum throughput, and average latency.
APA, Harvard, Vancouver, ISO, and other styles
16

Chao, Te-Huei, and 趙德卉. "A Survey of IPv6 Implementation and Experience and A Study of DNS Issues in IPv6 Transition." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/94078551117680614037.

Full text
Abstract:
碩士<br>國立交通大學<br>資訊管理研究所<br>85<br>Internet的普遍及應用程式的多元化,使用者越來越多,每年加倍 的成長,這使得目前廣泛使用的IPv4位址 瀕臨耗盡;專家預估,到2010 年將沒有剩餘的IPv4位址可以分配。面對Internet成長的壓力,新一代IP 協定 應運而生,稱為IPv6。IPv6捨棄IPv4中的負累,加入符合現代需求 的功能,同時IP位址的長度也從32位元擴展到128位元,以滿足未來更多 的需求。 本研究主要目的為: (一)分析IPv6和IPv4的差 異,探討IPv4轉換IPv6過程中可能產生的問題。 (二)調查發展 IPv系統者所實現的功能,及參與6bone者轉換過程的經驗。 (三 )根據可能產生的問題,提出解決方案以作為未來加入者之參考。 透過文獻探討和問卷調查結果分析,IPv4與IPv6在域名-位址對應的關係 上存在差異,因此負責域名-位址對應的域名伺服系統(DNS)必須有所因應 的改變。本研究首先研究在轉換過渡時期,對於同時存在IPv4、位址的環 境狀況,DNS回應位址的策略和處理流程。接下來則針對IPv6位址擁有多 種不同的單點傳播位址型態,在考量不同型態位址的使用限制和以區域性 傳輸為優先的情況下,提出回應不同型態IPv6位址的決策流程。最後討論 兩個DNS辨識不同型態的IPv6位址的方法。 While the Internet is well-known and wide-used, the easy use , friendly interface , and diverse applications of Internet make more and more computer users join the net. The growth of the number of Internet users is rapid. The almost double growth rate every year will soon exhaust the existing IPv4 addresses. Some experts predicted that at year 2010 there will be no available IPv4 addresses leftover. Under the growing pressure of insufficient IP adresses,a new generation IP protocol called IPv6, was born. IPv6 removes some burdens of IPv4 and incorporates new functions. The main purposes of this study are (i) Analyzing the differences between IPv6 and IPv4; (ii) Discussing the issues of the transition from IPv4 to IPv6; (iii) Collecting experiences from IPv6 system developers; (iv) Proposing an alternative to the implementation of DNS. The Domain Name System(DNS), which is responsible for the domain-address mapping, must evolve to handle the problems caused by the different mapping relations of IPv4 and IPv6. This research proposes a solution to the DNS address responses under the circumstance of the co- existence of IPv4 and IPv6.
APA, Harvard, Vancouver, ISO, and other styles
17

Broega, António José Carvalho. "Estudo e implementação de soluções para a melhoria da qualidade de serviço da rede do departamento de informática da FCUL: autentificação baseada e, 802.1X e transição para IPV6." Master's thesis, 2011. http://hdl.handle.net/10451/13905.

Full text
Abstract:
Currently, the systems and networks are present in various sectors of society and prove to be of great importance, so it is necessary to protect the network from unauthorized users. Against this background, the first objective of this master’s project is to increase the network security of the Department of Informatics, Faculty of Sciences, University of Lisbon. Several mechanisms to control network access were studied and has been chosen to implement 802.1x authentication because it presents a series of features that makes this the most appropriate solution for the study conditions. With 802.1x authentication is possible to categorize different types of users who have access to different resources provided by the system depending on their profile. The implementation of this solution did not involve any cost to the department. The 802.1x authentication was successfully implemented and is currently available in the department. The second part of this project is dedicated to the study of the existing conditions for a transition to IPv6. With the imminent exhaustion of IPv4 addresses available, it becomes necessary to study the changes that a possible transition could cause in the system (DHCP, DNS, software and hardware) of the department. Several strategies for migrating to IPv6 and the benefits this could bring to the department were studied. In addition, a detailed plan for the transition has been designed.
APA, Harvard, Vancouver, ISO, and other styles
18

"Transition of an enterprise environment from IPv4/NAT protocols to IPv6 Protocl, alignine IPTNET with the new generation networks." Tese, Centro de Aperfeiçoamento Tecnológico, 2003. http://santafe.ipt.br/tede/tde_busca/arquivo.php?codArquivo=3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!