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Análise de impacto na transição entre os protocolos de comunicação IPv4 e IPv6; Evaluating the impact of the IPv4/IPv6 transition

Sergio Eduardo Nunes
Fonte: Biblioteca Digital da Unicamp Publicador: Biblioteca Digital da Unicamp
Tipo: Dissertação de Mestrado Formato: application/pdf
Publicado em 28/08/2013 PT
Relevância na Pesquisa
27.97%
Neste trabalho, efetuou-se a avaliação de desempenho em uma rede de pequeno escritório, SOHO (Small Office Home Office), a fim de se conhecer o impacto nas redes de computadores, devido à utilização dos protocolos IPv4, IPv6 ou técnica de transição. As medições realizadas observaram o comportamento da vazão, latência, jitter e perda de pacotes, em três diferentes cenários experimentais: Rede IPv4, Rede IPv6 e Rede Pilha dupla. Os valores numéricos obtidos na análise das redes foram utilizados de forma incremental no programa de simulação ARENA, sendo modelada uma rede multisserviços com condições especiais para teste do impacto. O objetivo desta simulação é conhecer o impacto no comportamento dos serviços stream e elástico devido à variação de desempenho dos protocolos. Tais estudos objetivam ajudar aos administradores de redes no planejamento do período de transição e coexistência, possibilitando com que essa mudança nas redes de computadores possa ocorrer de forma mais suave.; This work evaluated a SOHO network (Small Office Home Office) in order to assess the impact of the IPv4, IPv6, and their transition protocols, on these networks. The experiments performed measured throughput, latency, jitter and packet loss in three experimental settings: IPv4...

Aspectos de transição do protocolo IPv4 para o IPv6

Moreno, Edson Alexandre Domingues
Fonte: Florianópolis, SC Publicador: Florianópolis, SC
Tipo: Dissertação de Mestrado Formato: ii, 94 f.| il.
POR
Relevância na Pesquisa
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência da Computação.; Uma nova versão e implementação do Internet Protocolo (IP), denominado IPv6, foi recomendada pelo IETF (Internet Engineering Task Force). Esta nova versão, irá substituir aos poucos a versão corrente, o IPv4. Mas antes desta troca ocorrer, alguns protocolos deverão passar por análises referentes as possíveis modificações e/ou implementações derivadas desta migração. A arquitetura da rede da Internet é dividida em níveis, os quais os protocolos são distribuídos conforme suas características e funções. Alguns destes protocolos levam em seus datagramas informações referentes ao endereço IP das máquinas origem e destino, e uma modificação na estrutura de endereçamento poderá trazer a necessidade de ajustes destes protocolos. Este trabalho propõe um estudo das técnicas existentes e necessárias para que possa ocorrer a migração do IPv4 para o IPv6. O protocolo IPv6 foi desenvolvido para atender novas necessidades na Internet e apresenta soluções para problemas de endereçamento, tabelas de roteamento e questões de segurança. Este novo protocolo é, ainda...

Reconfiguração dinâmica de agentes móveis IPv4 em redes sem fio Ad Hoc

Amvame-Nze, Georges
Fonte: Universidade de Brasília Publicador: Universidade de Brasília
Tipo: Tese
POR
Relevância na Pesquisa
27.48%
Tese (doutorado)—Universidade de Brasília, Faculdade de Tecnologia, Departamento de Engenharia Elétrica, 2006.; Este trabalho apresenta um novo protocolo chamado “Reconfiguração Dinâmica dos Agentes do IP Móvel” (RDAIPM) que permite o uso do IP Móvel (MIP) em redes sem fio ad hoc de saltos múltiplos (MANETs). O protocolo, RDAIPM, é uma extensão do protocolo IPv4 móvel, oferecendo a continuidade de sessão entre redes distintas MANET, usando para isso os seus Agentes nativos (HA) e estrangeiros (FA). Os Agentes do IP móvel são deslocados para dentro da rede MANET infraestruturada. Esses agentes garantem a continuidade de sessão, entre os dipositivos em mobilidade, enquanto estiver ativos. O algoritmo proposto elege também os agentes passivos, que substituem os agentes ativos no caso de falha. Essa recuperação de falha é especialmente importante para o nosso protocolo, porque os agentes dispõem agora de uma mobilidade total. O que não ocorre atualmente no cenário WLAN. Nesta tese, apresenta-se a especificação funcional detalhada do nosso protocolo (RDAIPM). Faz-se, também, uma análise de desempenho do mesmo em ambiente experimental e simulação, em nós com comunicação sem fio, baseados no sistema operacional Linux. O RDAIPM apresentou um excelente desempenho no geral e o mesmo ocorreu durante as faces críticas: a reconfiguração dos agentes passivos no caso de recuperação de falha. Os resultados experimentais tiveram uma ótima aproximação dos dados teóricos...

Estudo e implementação de soluções para a melhoria da qualidade de serviço da rede do departamento de informática da FCUL: autenticação baseada em 802.1X e transição para IPV6

Broega, António José Carvalho
Fonte: Universidade de Lisboa Publicador: Universidade de Lisboa
Tipo: Dissertação de Mestrado
Publicado em //2011 POR
Relevância na Pesquisa
27.48%
Trabalho de projecto de mestrado em Engenharia Informática (Arquitectura, Sistemas e Redes de Computadores), apresentado à Universidade de Lisboa, através da Faculdade de Ciências, 2011; Actualmente, os sistemas e as redes estão presentes nos mais diversos sectores da sociedade revelando-se de grande importância, sendo por isso necessário proteger a rede de utilizadores não autorizados. Face a este panorama, o primeiro objectivo deste projecto de mestrado ´e aumentar a segurança da rede do Departamento de Informática da Faculdade de Ciências da Universidade de Lisboa. Foram estudados vários mecanismos de controlo de acesso à rede, tendo-se optado pela implementação da autenticação 802.1x por apresentar uma série de características que fazem deste o mecanismo mais adequado às condições do ambiente em estudo. Com a autenticação 802.1x é possível categorizar vários tipos de utilizadores que terão acesso a diferentes recursos disponibilizados pelo sistema consoante o seu perfil. A implementação desta solução não envolveu qualquer custo para o departamento. A autenticação 802.1x foi implementada com sucesso e encontra-se actualmente a funcionar no departamento. A segunda parte deste projecto é dedicada ao estudo das condições existentes para uma transição para IPv6. Com a iminente exaustão dos endereços IPv4 disponíveis...

A Design Comparison between IPv4 and IPv6 in the Context of MYSEA, and Implementation of an IPv6 MYS.

OgasNeal, Matthew R.
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Relevância na Pesquisa
27.48%
Internet Protocol version six (IPv6) is only sparsely implemented in the world today. However, as it gains popularity, it will grow into a vital part of the Internet and communications technology in general. Many large organizations, including the Department of Defense, are considering deployment of IPv6. Experiments will ensure that IPv6 will work with both existing and planned applications. One area where its success is essential is that of systems designed to support multilevel security. This thesis focuses on the design and implementation issues that accompany a migration of the Monterey Security Enhanced Architecture (MYSEA) from Internet Protocol version four (IPv4) to IPv6. The research for this thesis consists of two major parts: a functional comparison between the IPv4 and IPv6 designs, and a prototype implementation of MYSEA in an IPv6 environment. The current MYSEA prototype relies on a subset of Network Address Translation (NAT) functionality to support the network’s operation; and, since IPv6 has no native support for it, a NAT mechanism was created in IPv6. This thesis provides a preliminary examination of IPv6 in MYSEA, which is a necessary step in determining whether the new protocol will assist with or detract from the enforcement of MYSEA policies.

Inferring Internet server IPv4 and IPv6 address relationships

Beverly, Robert; Berger, Arthur; Weaver, Nicholas; Campbell, Larry
Fonte: Monterey, California : Naval Postgraduate School Publicador: Monterey, California : Naval Postgraduate School
Tipo: Relatório
EN_US
Relevância na Pesquisa
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While IPv6 is finally experiencing non-trivial deployment, IPv4 and IPv6 are expected to co-exist for the foreseeable future, implying dual-stacked devices, and protocol interdependence. We develop and deploy a system for characterizing the association between IPv4 and IPv6 addresses ("siblings") within network server infrastructure, with specific forcus on Internet DNS and web servers. We develop two novel techniques for finding DNS resolver sibling groups, one passive and one active. For 674k observed (IPv4, IPv6) address pairs, we find that 34% of the addresses are one-to-one, i.e. appear in no other pair. Yet there are also complex cases, where distributed DNS resolution creates interconnected series of nameserver address pairs that can span continents and autonomous systems, compexity confirmed using active probing. We then describe a targeted method to actively interrogate candidate (IPv4, IPv6) pairs to determine if they are assigned to the same device. We find that the IPv4 and IPv6 addresses of Internet servers frequently belong to different interfaces, machines, and even autonomous systems Our results have important implications on network resilience, security, geolocation and performance measurement.

Implantación de IPv6 : red, mecanismos de transición IPv4-IPv6, servicios de aplicación y migración de aplicaciones

Rodríguez Hervella, Juan Francisco
Fonte: Universidade Carlos III de Madrid Publicador: Universidade Carlos III de Madrid
Tipo: info:eu-repo/semantics/bachelorThesis; info:eu-repo/semantics/masterThesis Formato: application/pdf
SPA
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El presente proyecto fin de carrera trata los aspectos más importantes de la gestión y migración de las redes IP hacia el nuevo protocolo de red IPv6 y pone gran énfasis en experiencias de implantación de los mismos. A lo largo de este proyecto se profundiza sobre los distintos mecanismos de transición IPv4/IPv6 existentes, concretamente se describen y se prueban (en entornos Linux y FreeBSD) los siguientes: .Túneles 6t04, automáticos, configurados. .Mecanismo DSTM, TRT, ISATAP, NAT-PT. También se presentan y se implantan en un entorno operativo servicios de red ofrecidos a través de la nueva plataforma IPv6, entre los que podemos citar: DNS, Servidor web, Red de servidores de IRC, Servicio de NFS. Se demuestra su funcionamiento en entornos mixtos IPv4/IPv6, diseñando escenarios que hacen uso de los mecanismos de traducción o encapsulación explicados en el presente proyecto fin de carrera. También se discuten y se implantan los protocolos de encaminamiento RIP y BGP en sus modalidades para IPv6 y se comenta la participación de nuestra red IPv6 de pruebas dentro de la red de pruebas multicast para IPv6 a nivel mundial, denominada m6bone. Se finaliza el presente trabajo con la migración al nuevo protocolo de la herramienta generadora de paquetes IP denominada MGEN...

Server Siblings: Identifying Shared IPv4/IPv6 Infrastructure via Active Fingerprinting

Beverly, Robert; Berger, Arthur
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Tipo: Article; Presentation
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Includes article and presentation.; PAM 2015 - 16th Passive and Active Measurement Conference; We present, validate, and apply an active measurement tech- nique that ascertains whether candidate IPv4 and IPv6 server addresses are “siblings,” i.e., assigned to the same physical machine. In contrast to prior efforts limited to passive monitoring, opportunistic measurements, or end-client populations, we propose an active methodology that gen- eralizes to all TCP-reachable devices, including servers. Our method ex- tends prior device fingerprinting techniques to improve their feasibility in modern environments, and uses them to support measurement-based detection of sibling interfaces. We validate our technique against a di- verse set of 61 web servers with known sibling addresses and find it to be over 97% accurate with 99% precision. Finally, we apply the technique to characterize the top ∼6,400 Alexa IPv6-capable web domains, and discover that a DNS name in common does not imply that the corre- sponding IPv4 and IPv6 addresses are on the same machine, network, or even autonomous system. Understanding sibling and non-sibling rela- tionships gives insight not only into IPv6 deployment and evolution, but also helps characterize the potential for correlated failures and suscepti- bility to certain attacks.; This work supported by in part by NSF grant CNS-1111445 and De- partment of Homeland Security (DHS) S&T contract N66001-2250-58231.

The Department of Defense's transition of program of record (POR) systems from Internet Protocol Version Four (IPV4) to Internet Protocol Version Six (IPV6)

Perkins, Kyle L.; Scott, Michael A.
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Formato: xvi, 71 p. ; 28 cm.
Relevância na Pesquisa
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Joint Applied Project; 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.; US Army (USA) author.

A design comparison between IPv4 and IPv6 in the context of MYSEA, and implementation of an IPv6 MYSEA prototype

O'Neal, Matthew R.
Fonte: Monterey, California. Naval Postgraduate School Publicador: Monterey, California. Naval Postgraduate School
Tipo: Tese de Doutorado Formato: xiv, 69 p. : ill.
Relevância na Pesquisa
37.67%
Approved for public release, distribution is unlimited; Internet Protocol version six (IPv6), the next generation Internet Protocol, exists sparsely in today's world. However, as it gains popularity, it will grow into a vital part of the Internet and communications technology in general. Many large organizations, including the Department of Defense, are working toward deploying IPv6 in many varied applications. This thesis focuses on the design and implementation issues that accompany a migration from Internet Protocol version four (IPv4) to IPv6 in the Monterey Security Enhanced Architecture (MYSEA). The research for this thesis consists of two major parts: a functional comparison between the IPv6 and IPv4 designs, and a prototype implementation of MYSEA with IPv6. The current MYSEA prototype relies on a subset of Network Address Translation (NAT) functionality to support the network's operation; and, due to the fact that IPv6 has no native support for NAT, this work also requires the creation of a similar mechanism for IPv6. This thesis provides a preliminary examination of IPv6 in MYSEA, which is a necessary step in determining whether the new protocol will assist with or detract from the enforcement of MYSEA policies.; Ensign...

Internet Nameserver IPv4 and IPv6 Address Relationships

Arthur Berger; Nicholas Weaver; Beverly, Robert; Larry Campbell
Fonte: Escola de Pós-Graduação Naval Publicador: Escola de Pós-Graduação Naval
Relevância na Pesquisa
27.67%
Proceedings of the Thirteenth ACM SIGCOMM Internet Measurement (IMC 2013) Conference, Barcelona, ES, October 2013; The article of record as published may be located at http://dx.doi.org/10.1145/2504730.2504745.; The modern Domain Name System (DNS) provides not only resolution, but also enables intelligent client routing, \eg for Content Distribution Networks (CDNs). The adoption of IPv6 presents CDNs the opportunity to utilize different paths when optimizing traffic, and the challenge of appropriately mapping IPv6 DNS queries. This work seeks to discover the associations between Internet DNS client resolver IPv6 address(es) and IPv4 address(es). We design and implement two new techniques, one passive and one active, to gather resolver pairings. The passive technique, deployed in Akamai's production DNS infrastructure, opportunistically discovered 674k (IPv4, IPv6) associated address pairs within a six-month period. We find that 34\% of addresses are one-to-one, \ie appear in no other pair, a fraction that increases to $\approx 50$\% when aggregating IPv6 addresses into /64 prefixes. The one-to-one associations are suggestive, but not a sufficient condition, of dual-stack DNS recursive resolvers. We further substantiate our inferences via PTR records and software versions...

Convergência entre IPv4 E IPv6.

Santos, Leonardo Conde dos
Fonte: Centro Universitário de Brasília Publicador: Centro Universitário de Brasília
Tipo: Trabalho de Conclusão de Curso
PT_BR
Relevância na Pesquisa
37.67%
Com o esgotamento do protocolo de rede IPv4, surge a necessidade de se substituir esse protocolo pelo IPv6. Para tanto, este trabalho abordará a substituição destes protocolos apresentando as características de cada um deles, juntamente com as técnicas de tradução, tunelamento e pilha dupla. A partir de um cenário, com melhor entendimento das principais técnicas de transição, serão apresentadas as características e as diferenças entre os endereçamentos IPv4 e IPv6. Após verificação das suas diferenças e incompatibilidade, serão implementadas técnicas de transição visando à total convergência entre as duas versões do protocolo IP.

Lost in Space: Improving Inference of IPv4 Address Space Utilization

Dainotti, Alberto; Benson, Karyn; King, Alistair; claffy, kc; Glatz, Eduard; Dimitropoulos, Xenofontas; Richter, Philipp; Finamore, Alessandro; Snoeren, Alex C.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
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One challenge in understanding the evolution of Internet infrastructure is the lack of systematic mechanisms for monitoring the extent to which allocated IP addresses are actually used. In this paper we try to advance the science of inferring IPv4 address space utilization by analyzing and correlating results obtained through different types of measurements. We have previously studied an approach based on passive measurements that can reveal used portions of the address space unseen by active approaches. In this paper, we study such passive approaches in detail, extending our methodology to four different types of vantage points, identifying traffic components that most significantly contribute to discovering used IPv4 network blocks. We then combine the results we obtained through passive measurements together with data from active measurement studies, as well as measurements from BGP and additional datasets available to researchers. Through the analysis of this large collection of heterogeneous datasets, we substantially improve the state of the art in terms of: (i) understanding the challenges and opportunities in using passive and active techniques to study address utilization; and (ii) knowledge of the utilization of the IPv4 space.

DW&C:Dollops Wise Curtail IPv4/IPv6 Transition Mechanism using NS2

Hanumanthappa, J.; Annaiah, H.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 11/09/2014
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27.67%
BD-SIIT and DSTM are widely deployed IPv4/IPv6 Transition mechanism to improve the performance of the computer network in terms of Throughput,End to End Delay(EED) and Packet Drop Rate(PDR).In this journal paper we have Implemented and Compared the Performance Issues of our newly proposed Dollops Wise Curtail(DW&C)IPv4/IPv6 Migration Mechanism with BD-SIIT and DSTM in NS2. Implementation and Comparison Performance Analysis between Dollops Wise Curtail,BD-SIIT and DSTM shows that Dollops Wise Curtail IPv4/IPv6 migration algorithm performance outperforms than BD-SIIT and DSTM.Based on extensive simulations,we show that DW&C algorithm reduces the Packet Drop Rate(PDR),End to End Delay(EED) and achieves better Throughput than BD-SIIT and DSTM.In our research work observation,the performance metrics such as Throughput,EED and PLR for DW&C,BD-SIIT and DSTM are measured using TCP,UDP,FTP and CBR Traffics; Comment: 9 pages, International Journal of Engineering Trends and Technology(IJETT),2014

Phase Changes in the Evolution of the IPv4 and IPv6 AS-Level Internet Topologies

Zhang, Guoqiang; Quoitin, Bruno; Zhou, Shi
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 14/07/2010
Relevância na Pesquisa
27.9%
In this paper we investigate the evolution of the IPv4 and IPv6 Internet topologies at the autonomous system (AS) level over a long period of time.We provide abundant empirical evidence that there is a phase transition in the growth trend of the two networks. For the IPv4 network, the phase change occurred in 2001. Before then the network's size grew exponentially, and thereafter it followed a linear growth. Changes are also observed around the same time for the maximum node degree, the average node degree and the average shortest path length. For the IPv6 network, the phase change occurred in late 2006. It is notable that the observed phase transitions in the two networks are different, for example the size of IPv6 network initially grew linearly and then shifted to an exponential growth. Our results show that following decades of rapid expansion up to the beginning of this century, the IPv4 network has now evolved into a mature, steady stage characterised by a relatively slow growth with a stable network structure; whereas the IPv6 network, after a slow startup process, has just taken off to a full speed growth. We also provide insight into the possible impact of IPv6-over-IPv4 tunneling deployment scheme on the evolution of the IPv6 network. The Internet topology generators so far are based on an inexplicit assumption that the evolution of Internet follows non-changing dynamic mechanisms. This assumption...

An architecture for "Web Of Things" using SOCKS protocol based IPv6/IPv4 gatewaying for heterogeneous communication

Patnaikuni, P. Shrinivasan. R.; Kulkarni, Raj. B.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 05/11/2011
Relevância na Pesquisa
27.67%
"Web Of Things" evolved from "Internet Of Things". Lot of research has been done in designing architecture for "Web Of Things". Two main architectures are Smart gateway based architecture and embedded Web Server based architecture. These architectures address some of the basic and essential issues relating to Service Oriented Architecture for "Web Of Things". Taking into consideration the period of coexistence of IPv4 and IPv6 we propose an architecture using SOCKS protocol based IPv6/IPv4 gatewaying and refinements which facilitates smooth heterogeneous communications between the IPv6 and IPv4 enabled embedded nodes and can potentially be used to prevent security threats like Denial-of-Service (DoS) attacks on embedded devices attached to the web and increase its performance. Our architecture provides a way for caching responses from device and thereby increasing its efficiency and performance and yielding quick response times.; Comment: 10 pages 5 Figures

Effect of Packet Delay Variation on Video-Voice over DiffServ-MPLS in IPv4-IPv6 Networks

Aziz, Md. Tariq; Islam, Mohammad Saiful; khan, Md. Nazmul Islam; Popescu, Adrian
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
27.97%
Over the last years, we have witnessed a rapid deployment of real-time applications on the Internet as well as many research works about Quality of Service (QoS), in particular IPv4 (Internet Protocol version 4). The inevitable exhaustion of the remaining IPv4 address pool has become progressively evident. As the evolution of Internet Protocol (IP) continues, the deployment of IPv6 QoS is underway. Today, there is limited experience in the deployment of QoS for IPv6 traffic in MPLS backbone networks in conjunction with DiffServ (Differentiated Services) support. DiffServ itself does not have the ability to control the traffic which has been taken for end-to-end path while a number of links of the path are congested. In contrast, MPLS Traffic Engineering (TE) is accomplished to control the traffic and can set up end-to-end routing path before data has been forwarded. From the evolution of IPv4 QoS solutions, we know that the integration of DiffServ and MPLS TE satisfies the guaranteed QoS requirement for real-time applications. This paper presents a QoS performance study of real-time applications such as voice and video conferencing in terms of Packet Delay Variation (PDV) over DiffServ with or without MPLS TE in IPv4/IPv6 networks using Optimized Network Engineering Tool (OPNET). We also study the interaction of Expedited Forwarding (EF)...

A Primer on IPv4 Scarcity

Richter, Philipp; Allman, Mark; Bush, Randy; Paxson, Vern
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
27.8%
With the ongoing exhaustion of free address pools at the registries serving the global demand for IPv4 address space, scarcity has become reality. Networks in need of address space can no longer get more address allocations from their respective registries. In this work we frame the fundamentals of the IPv4 address exhaustion phenomena and connected issues. We elaborate on how the current ecosystem of IPv4 address space has evolved since the standardization of IPv4, leading to the rather complex and opaque scenario we face today. We outline the evolution in address space management as well as address space use patterns, identifying key factors of the scarcity issues. We characterize the possible solution space to overcome these issues and open the perspective of address blocks as virtual resources, which involves issues such as differentiation between address blocks, the need for resource certification, and issues arising when transferring address space between networks.; Comment: ACM CCR 45(2), 11 pages, editorial contribution

IPv6 and IPv4 Threat reviews with Automatic Tunneling and Configuration Tunneling Considerations Transitional Model:A Case Study for University of Mysore Network

J., Hanumanthappa; H, Manjaiah D.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 04/08/2009
Relevância na Pesquisa
27.9%
The actual transition from IPv4 to IPv6 requires network administrators to become aware of the next generation protocol and the associated risk problems.Due to the scale and complexity of current internet architecture how to protect from the existing investment and reduce the negative influence to users and service providers during the transition from IPv4 to IPv6 is a very important future topic for the advanced version of an internet architecture.This paper summarizes and compares the IPv6 transition mechanism methods like Dual Stack,Tunneling issues like IPv6 Automatic tunneling and manually configured tunneling considerations, the IPv6 transition scenarios,IPv6 transition security problems,highlights IPv6 and IPv4 threat review with automatic tunneling and configuration tunneling considerations.In this paper we have proposed a transitional threat model for automatic tunneling and a configuration tunneling that could be followed by the University of Mysore(UoM),to estimate automatic tunneling and a manually configured tunneling threat review issues.Furthermore,there are different tunneling mechanisms such as IPv6 over IPv4 GRE Tunnel,Tunnel broker,Automatic IPv4 Compatible Tunnel and Automatic 6 to 4 Tunnel and also outlines many of the common known threats against IPv6 and then it compares and contrast how these threats are similar ones...

Performance evaluation of multicast routing on IPv4 and IPv6 networks

Hari, Suneetha
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
EN_US
Relevância na Pesquisa
37.97%
Even though the transition from IPv4 to IPv6 has not been realized at the pace that it was anticipated, eventually with the depletion of IPv4 address space and the ever-growing demands of the Internet, the transition is inevitable. In the rapidly evolving world of technology, multimedia applications and voice/video conferencing are fast finding their ways into the Internet and corporate networks. Multicast routing protocols run over unicast routing protocols to provide efficient routing of such applications. This thesis was aimed at understanding how the transition from IPv4 to IPv6 would impact multicast routing. The multicast routing protocol Protocol Independent Multicast-Sparse Mode (PIM-SM) was used over both IPv4 and IPv6 networks and a mixed IPv4-IPv6 network. Parameters such as protocol overheads, throughput and jitter were evaluated in a lab environment using jperf.