1. Find the source hardware address. 2. Find the destination hardware address. 3. What type of frame is this? 4. What Flag(s) are set? 5. What is the fragment offset? 6. What is the TTL count? 7. What is the Header Checksum? 8. If the header includes no options or padding, what are the first five bytes of the datagram data? 9. Find the destination IP address. 10. What class is the destination IP address? 11. What is the network ID in the destination address? 12. What is the host ID in the destination address? 13. Write the destination IP address in dotted decimal notation. 14. Find the source IP address. 15. What class is the source IP address? 16. What is the network ID in the source address? 17. What is the host ID in the source address? 18. Write the source IP address in dotted decimal notation. 19. Can this message be delivered directly by the source to the destination, or will it require routers to handle the message. Explain how the ARP Protocol works. What problem does it solve? How does it solve the problem? Give examples and be as specific as possible.

Systems Architecture
7th Edition
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Stephen D. Burd
Chapter10: Application Development
Section: Chapter Questions
Problem 9VE
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1. Find the source hardware address.
2. Find the destination hardware address.
3. What type of frame is this?
4. What Flag(s) are set?
5. What is the fragment offset?
6. What is the TTL count?
7. What is the Header Checksum?
8. If the header includes no options or padding, what are the first five bytes of
the datagram data?
9. Find the destination IP address.
10. What class is the destination IP address?
11. What is the network ID in the destination address?
12. What is the host ID in the destination address?
13. Write the destination IP address in dotted decimal notation.
14. Find the source IP address.
15. What class is the source IP address?
16. What is the network ID in the source address?
17. What is the host ID in the source address?
18. Write the source IP address in dotted decimal notation.
19. Can this message be delivered directly by the source to the destination, or
will it require routers to handle the message.
• Explain how the ARP Protocol works. What problem does it solve? How does it
solve the problem? Give examples and be as specific as possible.
Suppose machine C receives an ARP request sent from A looking for target B,
and suppose C has the binding for IPB to HWB in its ARP cache. Should C answer
the request? Explain why or why not.
Transcribed Image Text:1. Find the source hardware address. 2. Find the destination hardware address. 3. What type of frame is this? 4. What Flag(s) are set? 5. What is the fragment offset? 6. What is the TTL count? 7. What is the Header Checksum? 8. If the header includes no options or padding, what are the first five bytes of the datagram data? 9. Find the destination IP address. 10. What class is the destination IP address? 11. What is the network ID in the destination address? 12. What is the host ID in the destination address? 13. Write the destination IP address in dotted decimal notation. 14. Find the source IP address. 15. What class is the source IP address? 16. What is the network ID in the source address? 17. What is the host ID in the source address? 18. Write the source IP address in dotted decimal notation. 19. Can this message be delivered directly by the source to the destination, or will it require routers to handle the message. • Explain how the ARP Protocol works. What problem does it solve? How does it solve the problem? Give examples and be as specific as possible. Suppose machine C receives an ARP request sent from A looking for target B, and suppose C has the binding for IPB to HWB in its ARP cache. Should C answer the request? Explain why or why not.
Destination Hardware
Byte
bit
0
4
8
12
16
Optional
20
Address
6 Bytes
Source Hardware
Address
6 Bytes
TTL
Identification
0
1
2
3
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Version Header Length
Type Of Service
Total Length
Fragment Offset
Header Checksum
Type
IP Options (May Be Omitted)
7E
54 6B 55
5C
00 72 AC B8 61 B8 96
EE 50 68 DB 33 60 39
D5 8F D1 E9 66 79 24
45 D3 D3 1F
22
1B 30 97 OC
B5 56
53
84 12
6F BD DA 4B 05
36 42 A7
F8 FD
02
82
78
9F AC B6
76
C9
EE
OB C3
Frame Type
2 Bytes
Source IP Address
Destination IP Address
Flags
IP Payload Data
90
FD 53
A3 E8
65
D9
2B
42
57 AE C8 E6 08
68
7B
DO
DE 94
A2 94
5C F4
18 25
C5
92
8A
06
Frame Data
46 - 1500 Bytes
00 45 51
B1
49
1A
5B
05
50 5D D3
Al El
65 15
43
ВО
7F
F9 FE
3E FA
FA
F6 71
5F E8 9D
55
3D
2E 24
Padding
F4
67 55
F6 95
57
Transcribed Image Text:Destination Hardware Byte bit 0 4 8 12 16 Optional 20 Address 6 Bytes Source Hardware Address 6 Bytes TTL Identification 0 1 2 3 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Version Header Length Type Of Service Total Length Fragment Offset Header Checksum Type IP Options (May Be Omitted) 7E 54 6B 55 5C 00 72 AC B8 61 B8 96 EE 50 68 DB 33 60 39 D5 8F D1 E9 66 79 24 45 D3 D3 1F 22 1B 30 97 OC B5 56 53 84 12 6F BD DA 4B 05 36 42 A7 F8 FD 02 82 78 9F AC B6 76 C9 EE OB C3 Frame Type 2 Bytes Source IP Address Destination IP Address Flags IP Payload Data 90 FD 53 A3 E8 65 D9 2B 42 57 AE C8 E6 08 68 7B DO DE 94 A2 94 5C F4 18 25 C5 92 8A 06 Frame Data 46 - 1500 Bytes 00 45 51 B1 49 1A 5B 05 50 5D D3 Al El 65 15 43 ВО 7F F9 FE 3E FA FA F6 71 5F E8 9D 55 3D 2E 24 Padding F4 67 55 F6 95 57
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