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 that a UDP 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 |
UDP Source Port |
UDP Destination Port |
4 |
UDP Message Length |
UDP Checksum |
8 |
UDP Payload Data |
And given the following frame with an encapsulated IP datagram and UDP datagram:
2B 5B D6 EB 55 64 CA 36 FA 27 BE 20 08 00 45 05
00 72 7A 90 24 DA 7E 5B 38 12 7D 0D 97 16 C4 AB
51 0F 03 A1 60 53 FD A4 D0 7E 84 50 CF EE 7B BB
55 28 51 02 EA 99 FE 11 5E 96 BC 25 48 3F 5A 4D
97 D1 9D CA 28 E5 AF 84 D2 A7 04 96 4D 3F 7C D2
4A 7B 94 D3 35 C4 97 36 BF FF 9A A9 3B 43 29 67
6E 73 71 0F 45 92 41 CF 7F D0 60 CA 0D 99 8A 80
A2 48 D6 CA 02 FF ED 78 E5 FC 2A 6E F3 42 C2 1C
-
Find the source hardware address.
-
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.
-
What is the UDP source port?
-
What is the UDP destination port?
-
What is the UDP message length?
-
What is the UDP checksum?