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:
C2 DD 8F 50 E9 DC 46 AF 2C B1 E6 C1 08 00 45 4D
00 72 DA DD 54 97 D4 85 80 ED 37 75 6C AB 99 E1
C6 3A AC DF 72 B3 67 B2 98 4B 96 C9 3E 66 74 23
52 D3 9D 79 8A 14 3A D8 1D 6B 1E 57 AA 40 A5 89
95 A7 C1 32 61 18 B5 BF 16 B1 62 C1 F0 34 8B BA
F0 EC 45 11 64 33 A8 59 D7 F9 51 5E F3 76 63 DF
B2 A7 64 6A AE 09 BE 9D 1A 2A 1F 93 99 7B 88 B4
97 02 72 C8 65 AC 57 71 3F 93 B3 8A 08 CB 63 32
-
Find the source hardware address.
-
Find the destination hardware address.
-
What type of frame is this?
-
What Flag(s) are set?
-
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?
-
What is the network ID in the destination address?
-
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?