Router A Router B Router C Router D Network Next Hop Next ...

CIS--331

Solutions

Version 1

Test 1

Network 10.0.0.0 20.0.0.0 30.0.0.0 40.0.0.0 50.0.0.0 Default

Router A Next Hop

Direct Direct 20.0.0.1 20.0.0.1 10.0.0.1 10.0.0.1

Router B Next Hop 20.0.0.2

Direct Direct 30.0.0.2 20.0.0.2 20.0.0.2

Router C Next Hop 30.0.0.1 30.0.0.1

Direct Direct 30.0.0.1 30.0.0.1

Router D Next Hop

Direct 10.0.0.2 10.0.0.2 10.0.0.2 Direct 50.0.0.2

CIS--331

Solutions

Test 1

Version 1

5D 21 5C AD 42 5B 6B 7A 50 41 8F 58 08 00 45 38

00 72 92 11 32 EF E8 E1 BF 0A 7B B8 E4 46 6A AD

1B EA 5F DB 2B 06 25 AD 57 E5 40 DD 77 BF 6F 70

64 9D 90 EB C7 9A DA 19 F0 71 17 9A 18 1E CE C1

C0 34 D6 D7 0C FC AC E0 5A 10 86 40 EE C1 22 DD

85 07 29 DE AC A2 75 71 23 5F FA A2 6C F4 2C E6

63 A7 A6 5F FB A5 95 A3 1D DB 00 7D 41 11 F4 AF

68 3A 3D 31 B7 F5 04 77 40 A9 76 8B E2 26 20 5C

Destination Hardware Address 5D 21 5C AD 42 5B 01011101 00100001 01011100 10101101 01000010 01011011

Source Hardware Address

6B 7A 50 41 8F 58 01101011 01111010 01010000 01000001 10001111 01011000

Frame Type

08 00

00001000 00000000

Vers & Len

45

01000101

Type Of Service

38

00111000

Total Length

00 72

00000000 01110010

Ident

92 11

10010010 00010001

Flags & Fragment Offset

32 EF

00110010 11101111

Flags

More Fragments

Fragment Offset

12 EF

00010010 11101111

TTL

E8

11101000

Type

E1

11100001

Header Checksum

BF 0A

10111111 00001010

Source IP Address

7B B8 E4 46

01111011 10111000 11100100 01000110

Class

A

Network

7B

01111011

Host

B8 E4 46

10111000 11100100 01000110

Source IP Address (Decimal) 123 184 228 70

Destination IP Address

6A AD 1B EA

01101010 10101101 00011011 11101010

Class

A

Network

6A

01101010

Host

AD 1B EA

10101101 00011011 11101010

Destination IP Address

(Decimal)

106 173 27 234

Payload Data

5F DB 2B 06 25

01011111 11011011 00101011 00000110 00100101

CIS--331

Solutions

Version 2

Test 1

Network 10.0.0.0 20.0.0.0 30.0.0.0 40.0.0.0 50.0.0.0 Default

Router A Next Hop 30.0.0.1 30.0.0.1

Direct Direct 30.0.0.1 30.0.0.1

Router B Next Hop

Direct 10.0.0.2 10.0.0.2 10.0.0.2 Direct 50.0.0.2

Router C Next Hop 20.0.0.2

Direct Direct 30.0.0.2 20.0.0.2 20.0.0.2

Router D Next Hop

Direct Direct 20.0.0.1 20.0.0.1 10.0.0.1 10.0.0.1

CIS--331

Solutions

Test 1

Destination Hardware Address Source Hardware Address Frame Type

Vers & Len Type Of Service Total Length Ident Flags & Fragment Offset Flags Fragment Offset TTL Type Header Checksum Source IP Address Class Network Host Source IP Address (Decimal) Destination IP Address Class Network Host Destination IP Address (Decimal)

Payload Data

Version 2

5A E7 4F 57 0B 9C 7A 0C ED D1 93 F5 08 00 45 7D

00 72 B6 21 2A 7A DF 28 8A 43 82 A3 81 FD 3C 2B

9E 56 4D 06 26 EE 1E 6A A4 A1 38 2E 41 42 BA 5D

FC 80 AD 8E 60 5E 30 14 9E 8A D5 76 5A E2 BF EE

03 E7 E5 4D 5F 55 DE C4 F7 8A 75 7D 80 B6 E9 E6

CB 19 C1 D5 D1 0F 0E 60 9B DC 15 F8 78 8E 5E 4F

29 B2 99 F5 A5 F1 04 17 74 52 8B A9 2E A6 57 8E

1B 84 35 C3 C4 BE 76 A5 21 EF 17 E6 4D 5A F9 92

5A E7 4F 57 0B 9C 01011010 11100111 01001111 01010111 00001011 10011100

7A 0C ED D1 93 F5 01111010 00001100 11101101 11010001 10010011 11110101

08 00

00001000 00000000

45

01000101

7D

01111101

00 72

00000000 01110010

B6 21

10110110 00100001

2A 7A

00101010 01111010

More Fragments

0A 7A

00001010 01111010

DF

11011111

28

00101000

8A 43

10001010 01000011

82 A3 81 FD

10000010 10100011 10000001 11111101

B

82 A3

10000010 10100011

81 FD

10000001 11111101

130 163 129 253

3C 2B 9E 56

00111100 00101011 10011110 01010110

A

3C

00111100

2B 9E 56

00101011 10011110 01010110

60 43 158 86 4D 06 26 EE 1E

01001101 00000110 00100110 11101110 00011110

CIS--331

Solutions

Version 3

Router A

Router B

Network

Next Hop

Next Hop

10.0.0.0

50.0.0.1

40.0.0.2

20.0.0.0

30.0.0.1

50.0.0.2

30.0.0.0

Direct

50.0.0.2

40.0.0.0

50.0.0.1

Direct

50.0.0.0

Direct

Direct

Default

30.0.0.1

50.0.0.2

Test 1

Router C Next Hop

Direct 40.0.0.1 40.0.0.1 Direct 40.0.0.1 40.0.0.1

Router D Next Hop 30.0.0.2

Direct Direct 30.0.0.2 30.0.0.2 20.0.0.2

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