Appendix G. Practice for Chapter 22: Fundamentals of IP Version 6

This appendix provides extra practice problems for two topics discussed in Chapter 22, “Fundamentals of IP Version 6,” of the book. The first problems let you convert from a full 32-digit IPv6 address to its abbreviated form, or to do the reverse. The second set of problems begins with IPv6 addresses and prefix lengths, asking you to determine the IPv6 prefix (subnet).

Address Abbreviating and Expanding Problems

Chapter 22 discusses some reasons why you may need to be able to mentally convert from the full 32-digit IPv6 address to the abbreviated form, or vice versa. The practice problems in this section simply provide more opportunities to practice.

Table G-1 lists some practice problems, with the full 32-digit IPv6 address on the left and the best abbreviation on the right. The table gives you either the expanded or abbreviated address, and you need to supply the opposite value. The answers sit at the end of the appendix, in the section “Answers to Address Abbreviating and Expanding Problems.”

Table G-1 IPv6 Address Abbreviation and Expansion Practice

 

Full

Abbreviation

1

2987:BA11:B011:B00A:1000:0001:F001:F003

 

2

 

3100::1010:D00D:D000:D00B:B00D

3

FD00:0001:0001:0001:0200:00FF:FE00:0001

 

4

 

FDDF:8080:880:1001:0:FF:FE01:507

5

32CC:0000:0000:000D:210F:0000:0000:0000

 

6

 

2100:E:E0::E00

7

3A11:CA00:0000:0000:0000:00FF:FECC:000C

 

8

 

3799:9F9F:F000:0:FFFF::1

9

2A2A:0000:0000:0000:0000:0000:0000:2A2A

 

10

 

3194::1:0:0:101

11

2001:0DB8:0000:0000:0001:0000:0002:0100

 

12

 

2001:DB8::10:A000

13

3330:0000:0000:0100:0000:0002:0000:0003

 

14

 

FD00::1000:2000:0:1:20

15

FD11:1000:0100:0010:0001:0000:1000:0100

 

16

 

2000::2

Calculating the IPv6 Prefix Problems

Routers take the interface IPv6 address configuration and add a connected IPv6 route to the IPv6 routing table, for the IPv6 prefix (subnet) connected to that interface. This section provides some practice problems so that you can do the same math and predict the prefix value that the router will add to the routing table.

Table G-2 lists practice problems that all use the same prefix length (/64), which is the most common prefix length you see. Table G-3 that follows lists additional practice problems, with prefix lengths other than /64.

Table G-2 Finding the IPv6 Prefix When Using a /64 Prefix Length

 

Address (Assume a /64 Prefix Length)

Prefix (Subnet)

1

2987:BA11:B011:B00A:1000:0001:F001:F003

 

2

3100:0000:0000:1010:D00D:D000:D00B:B00D

 

3

FD00:0001:0001:0001:0200:00FF:FE00:0001

 

4

FDDF:8080:0880:1001:0000:00FF:FE01:0507

 

5

32CC:0000:0000:000D:210F:0000:0000:0000

 

6

2100:000E:00E0:0000:0000:0000:0000:0E00

 

7

3A11:CA00:0000:0000:0000:00FF:FECC:000C

 

8

3799:9F9F:F000:0000:FFFF:0000:0000:0001

 

9

2A2A:0000:0000:0000:0000:0000:0000:2A2A

 

10

3194:0000:0000:0000:0001:0000:0000:0101

 

11

2001:0DB8:0000:0000:0001:0000:0002:0100

 

12

2001:0DB8:0000:0000:0000:0000:0010:A000

 

13

3330:0000:0000:0100:0000:0002:0000:0003

 

14

FD00:0000:0000:1000:2000:0000:0001:0020

 

15

FD11:1000:0100:0010:0001:0000:1000:0100

 

16

2000:0000:0000:0000:0000:0000:0000:0002

 

Table G-3 Finding the IPv6 Prefix Using a Prefix Length Other Than /64

 

Address

Prefix (Subnet)

1

2987:BA11:B011:B00A:1000:0001:F001:F003 /60

 

2

3100:0000:0000:1010:D00D:D000:D00B:B00D /56

 

3

FD00:0001:0001:0001:0200:00FF:FE00:0001 /52

 

4

FDDF:8080:0880:1001:0000:00FF:FE01:0507 /48

 

5

32CC:0000:0000:000D:210F:0000:0000:0000 /44

 

6

2100:000E:00E0:0000:0000:0000:0000:0E00 /60

 

7

3A11:CA00:0000:0000:0000:00FF:FECC:000C /56

 

8

3799:9F9F:F000:0000:FFFF:0000:0000:0001 /52

 

9

2A2A:0000:0000:0000:0000:0000:0000:2A2A /48

 

10

3194:0000:0000:0000:0001:0000:0000:0101 /44

 

Answers to Address Abbreviating and Expanding Problems

Table G-4 lists the answers to the problems listed earlier in Table G-1.

Table G-4 Answers: IPv6 Address Abbreviation and Expansion Practice

 

Full

Abbreviation

1

2987:BA11:B011:B00A:1000:0001:F001:F003

2987:BA11:B011:B00A:1000:1:F001:F003

2

3100:0000:0000:1010:D00D:D000:D00B:B00D

3100::1010:D00D:D000:D00B:B00D

3

FD00:0001:0001:0001:0200:00FF:FE00:0001

FD00:1:1:1:200:FF:FE00:1

4

FDDF:8080:0880:1001:0000:00FF:FE01:0507

FDDF:8080:880:1001:0:FF:FE01:507

5

32CC:0000:0000:000D:210F:0000:0000:0000

32CC:0:0:D:210F::

6

2100:000E:00E0:0000:0000:0000:0000:0E00

2100:E:E0::E00

7

3A11:CA00:0000:0000:0000:00FF:FECC:000C

3A11:CA00::FF:FECC:C

8

3799:9F9F:F000:0000:FFFF:0000:0000:0001

3799:9F9F:F000:0:FFFF::1

9

2A2A:0000:0000:0000:0000:0000:0000:2A2A

2A2A::2A2A

10

3194:0000:0000:0000:0001:0000:0000:0101

3194::1:0:0:101

11

2001:0DB8:0000:0000:0001:0000:0002:0100

2001:DB8::1:0:2:100

12

2001:0DB8:0000:0000:0000:0000:0010:A000

2001:DB8::10:A000

13

3330:0000:0000:0100:0000:0002:0000:0003

3330::100:0:2:0:3

14

FD00:0000:0000:1000:2000:0000:0001:0020

FD00::1000:2000:0:1:20

15

FD11:1000:0100:0010:0001:0000:1000:0100

FD11:1000:100:10:1:0:1000:100

16

2000:0000:0000:0000:0000:0000:0000:0002

2000::2

Answers to Calculating IPv6 Prefix Problems

Tables G-5 and G-6 list the answers to the problems listed earlier in Tables G-2 and G-3.

Table G-5 Answers: Finding the IPv6 Prefix, with a /64 Prefix Length

 

Address (Assume a /64 Prefix Length)

Prefix (Subnet)

1

2987:BA11:B011:B00A:1000:0001:F001:F003

2987:BA11:B011:B00A::/64

2

3100:0000:0000:1010:D00D:D000:D00B:B00D

3100:0:0:1010::/64

3

FD00:0001:0001:0001:0200:00FF:FE00:0001

FD00:1:1:1::/64

4

FDDF:8080:0880:1001:0000:00FF:FE01:0507

FDDF:8080:880:1001::/64

5

32CC:0000:0000:000D:210F:0000:0000:0000

32CC:0:0:D::/64

6

2100:000E:00E0:0000:0000:0000:0000:0E00

2100:E:E0::/64

7

3A11:CA00:0000:0000:0000:00FF:FECC:000C

3A11:CA00::/64

8

3799:9F9F:F000:0000:FFFF:0000:0000:0001

3799:9F9F:F000::/64

9

2A2A:0000:0000:0000:0000:0000:0000:2A2A

2A2A::/64

10

3194:0000:0000:0000:0001:0000:0000:0101

3194::/64

11

2001:0DB8:0000:0000:0001:0000:0002:0100

2001:DB8::/64

12

2001:0DB8:0000:0000:0000:0000:0010:A000

2001:DB8::/64

13

3330:0000:0000:0100:0000:0002:0000:0003

3330:0:0:100::/64

14

FD00:0000:0000:1000:2000:0000:0001:0020

FD00:0:0:1000::/64

15

FD11:1000:0100:0010:0001:0000:1000:0100

FD11:1000:100:10::/64

16

2000:0000:0000:0000:0000:0000:0000:0002

2000::/64

Table G-6 Answers: Finding the IPv6 Prefix, with Other Prefix Lengths

 

Address

Prefix (Subnet)

1

2987:BA11:B011:B00A:1000:0001:F001:F003 /60

2987:BA11:B011:B000::/60

2

3100:0000:0000:1010:D00D:D000:D00B:B00D /56

3100:0:0:1000::/56

3

FD00:0001:0001:0001:0200:00FF:FE00:0001 /52

FD00:1:1::/52

4

FDDF:8080:0880:1001:0000:00FF:FE01:0507 /48

FDDF:8080:880::/48

5

32CC:0000:0000:000D:210F:0000:0000:0000 /44

32CC::/44

6

2100:000E:00E0:0000:0000:0000:0000:0E00 /60

2100:E:E0::/60

7

3A11:CA00:0000:0000:0000:00FF:FECC:000C /56

3A11:CA00::/56

8

3799:9F9F:F000:0000:FFFF:0000:0000:0001 /52

3799:9F9F:F000::/52

9

2A2A:0000:0000:0000:0000:0000:0000:2A2A /48

2A2A::/48

10

3194:0000:0000:0000:0001:0000:0000:0101 /44

3194::/44

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