ITC542 201830 Lecture10.pptx

ITC542 201830 Lecture10.pptx - Internetworking with TCP/IP...

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SCHOOL OF COMPUTING AND MATHEMATICS 2018 - Dr Sabih Rehman, Charles Sturt University Lecturer: Dr Sabih Rehman Email: [email protected] Lecture 10 – Transitioning from IPv4 to IPv6 Figures in this presentation taken from Pyles.J., Carrell, J., Tittel, E (2017). Guide to TCP/IP: IPv6 and IPv4, Cengage Learning Internetworking with TCP/IP
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SCHOOL OF COMPUTING AND MATHEMATICS Lecture 10 – Synopsis from Previous Lecture 2018 - Dr Sabih Rehman, Charles Sturt University Transport layer protocols come in two types i.e. connectionless and connection-oriented UDP header is short and simple , consisting of A protocol identifier in the IP header An optional checksum value Source and destination port addresses Transmission Control Protocol Heavyweight, connection-oriented protocol that helps name the TCP/IP protocol suite TCP header Longer and more complex, Includes a variety of flags, values, and message types Appropriate (and historical) uses for UDP Concentrate on Application layer services that manage their own reliability and connections Although there are no updated versions for TCP and UDP that correspond to IPv6 The functions of these transport protocols are treated differently when used by IPv4 or IPv6
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SCHOOL OF COMPUTING AND MATHEMATICS Lecture 10 - Objectives 2018 - Dr Sabih Rehman, Charles Sturt University Describe the various methods that allow IPv4 and IPv6 networks to interact , including dual stack and tunneling through the IPv4 cloud Explain hybrid IPv4/IPv6 network and node types, such as basic hybrid, nested hybrid, and true hybrid Explain how an IPv6 transition address works Describe the various IPv4/IPv6 transition mechanisms, such as dual stacks and IPv6-over-IPv4 tunneling Describe the different tunneling configuration types and their device interactions Explain the ISATAP tunneling mechanism , including its components, addressing, and routing and router configuration Explain the 6to4 tunneling mechanism and Tredo tunneling system , including its components, addressing and routing, communication procedures, and its most recent status Plan an IPv6 deployment, including success criteria, architectural decisions, migration techniques, and the many tasks that must be completed
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SCHOOL OF COMPUTING AND MATHEMATICS How Can IPv4 and IPv6 Interact? IPv6 and IPv4 will probably exist side by side for many years Designers of IPv6 anticipated a slow cutover Created a set of techniques to allow IPv6 to function adequately in a world dominated by IPv4 Built in tools to allow IPv6 to support the legacy installations of IPv4 as the transition progresses 2018 - Dr Sabih Rehman, Charles Sturt University
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SCHOOL OF COMPUTING AND MATHEMATICS Dual-Stack Approach Dual-stack Implementations for individuals or small offices may work as experiments However, they are limited by the availability of dual stack routers at ISPs at the edge of the Internet Most important dual-stack machines
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