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Chapter 27

Chapter 27. Next Generation: IPv6. Objectives. Upon completion you will be able to:. Understand the shortcomings of IPv4 Know the IPv6 address format, address types, and abbreviations Be familiar with the IPv6 header format Know the extension header types. 27.1 IPv6.

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Chapter 27

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  1. Chapter 27 Next Generation: IPv6 Objectives Upon completion you will be able to: • Understand the shortcomings of IPv4 • Know the IPv6 address format, address types, and abbreviations • Be familiar with the IPv6 header format • Know the extension header types TCP/IP Protocol Suite

  2. 27.1 IPv6 IPv6 has these advantages over IPv4: 1. larger address space 2. better header format 3. new options4. allowance for extension5. support for resource allocation 6. support for more security The topics discussed in this section include: IPv6 Addresses Address Space Assignment Packet Format Comparison between IPv4 and IPv6 TCP/IP Protocol Suite

  3. Figure 27.1IPv6 address TCP/IP Protocol Suite

  4. Figure 27.2Abbreviated address TCP/IP Protocol Suite

  5. Figure 27.3Abbreviated address with consecutive zeros TCP/IP Protocol Suite

  6. Figure 27.4CIDR address TCP/IP Protocol Suite

  7. Figure 27.5Address structure TCP/IP Protocol Suite

  8. Table 27.1 Type prefixes for IPv6 addresses TCP/IP Protocol Suite

  9. Figure 27.6Provider-based address TCP/IP Protocol Suite

  10. Figure 27.7Address hierarchy TCP/IP Protocol Suite

  11. Figure 27.8Unspecified address TCP/IP Protocol Suite

  12. Figure 27.9Loopback address TCP/IP Protocol Suite

  13. Figure 27.10Compatible address TCP/IP Protocol Suite

  14. Figure 27.11Mapped address TCP/IP Protocol Suite

  15. Figure 27.12Link local address TCP/IP Protocol Suite

  16. Figure 27.13Site local address TCP/IP Protocol Suite

  17. Figure 27.14Multicast address TCP/IP Protocol Suite

  18. Figure 27.15IPv6 datagram TCP/IP Protocol Suite

  19. Figure 27.16Format of an IPv6 datagram TCP/IP Protocol Suite

  20. Table 27.2 Next header codes TCP/IP Protocol Suite

  21. Table 27.3 Priorities for congestion-controlled traffic TCP/IP Protocol Suite

  22. Table 27.4 Priorities for noncongestion-controlled traffic TCP/IP Protocol Suite

  23. Table 27.5 Comparison between IPv4 and IPv6 packet header TCP/IP Protocol Suite

  24. Figure 27.17Extension header format TCP/IP Protocol Suite

  25. Figure 27.18Extension header types TCP/IP Protocol Suite

  26. Figure 27.19Hop-by-hop option header format TCP/IP Protocol Suite

  27. Figure 27.20The format of options in a hop-by-hop option header TCP/IP Protocol Suite

  28. Figure 27.21Pad1 TCP/IP Protocol Suite

  29. Figure 27.22PadN TCP/IP Protocol Suite

  30. Figure 27.23Jumbo payload TCP/IP Protocol Suite

  31. Figure 27.24Source routing TCP/IP Protocol Suite

  32. Figure 27.25Source routing example TCP/IP Protocol Suite

  33. Figure 27.26Fragmentation TCP/IP Protocol Suite

  34. Figure 27.27Authentication TCP/IP Protocol Suite

  35. Figure 27.28Calculation of authentication data TCP/IP Protocol Suite

  36. Figure 27.29Encrypted security payload TCP/IP Protocol Suite

  37. Figure 27.30Transport mode encryption TCP/IP Protocol Suite

  38. Figure 27.31Tunnel-mode encryption TCP/IP Protocol Suite

  39. Table 27.6 Comparison between IPv4 options and IPv6 extension headers TCP/IP Protocol Suite

  40. 27.3 TRANSITION FROM IPv4 TO IPv6 Three strategies have been devised by the IETF to provide for a smooth transition from IPv4 to IPv6. The topics discussed in this section include: Dual Stack Tunneling Header Translation TCP/IP Protocol Suite

  41. Figure 27.48Three transition strategies TCP/IP Protocol Suite

  42. Figure 27.49Dual stack TCP/IP Protocol Suite

  43. Figure 27.50Automatic tunneling TCP/IP Protocol Suite

  44. Figure 27.51Configured tunneling TCP/IP Protocol Suite

  45. Figure 27.52Header translation TCP/IP Protocol Suite

  46. Table 27.9 Header translation TCP/IP Protocol Suite

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