Given that a frame is formatted as follows:
Destination Hardware Address |
Source Hardware Address |
Frame Type |
Frame Data |
6 Bytes |
6 Bytes |
2 Bytes |
46 - 1500 Bytes |
And given that an IP datagram is formatted as follows:
Byte |
0 |
1 |
2 |
3 |
bit |
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 |
0 |
Version |
Header Length |
Type Of Service |
Total Length |
4 |
Identification |
Flags |
Fragment Offset |
8 |
TTL |
Type |
Header Checksum |
12 |
Source IP Address |
16 |
Destination IP Address |
|
IP Options (May Be Omitted) |
Padding |
20 |
IP Payload Data |
And given the following frame with an encapsulated IP datagram:
1D 1C B0 28 A8 EC D3 FE 25 02 25 9D 08 00 45 C8
00 72 32 A0 07 70 60 74 FA 21 30 CA 39 3E B0 61
61 FB F5 72 68 28 CF 69 A7 D2 A6 BF 5E 7C B6 22
E0 20 00 33 42 F1 D8 C5 D1 85 72 63 50 2E E9 FE
E0 C3 97 B5 59 45 48 8F 4B C5 B7 CC A8 22 04 3A
98 BA BF B4 BF C1 8E 05 75 DD 15 04 8B 84 C7 07
F6 EF 1E D3 37 8F A1 96 4D 25 9C ED 90 94 33 6D
BE 42 BD D6 73 FB F2 1B 79 A3 1D EB 04 6E D7 AD
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Find the source hardware address.
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Find the destination hardware address.
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What type of frame is this?
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What Flag(s) are set?
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What is the fragment offset?
-
What is the TTL count?
-
What is the Header Checksum?
-
If the header includes no options or padding, what are the first five bytes of
the datagram data?
-
Find the destination IP address.
-
What class is the destination IP address?
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What is the network ID in the destination address?
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What is the host ID in the destination address?
-
Write the destination IP address in dotted decimal notation.
-
Find the source IP address.
-
What class is the source IP address?
-
What is the network ID in the source address?
-
What is the host ID in the source address?
-
Write the source IP address in dotted decimal notation.
-
Can this message be delivered directly by the source to the destination, or will
it require routers to handle the message. Explain.