Question

IP Fragmentation - 6 points Consider a router sending an IPv4 packet with a 7000-byte payload on an interface with an MTU of 1500 bytes. Suppose that the value of the Identification header field in the original packet is 25. Assume that there are no IP options. Fragment this packet and, using the table below, fill in the fragmentation-related header fields for each fragment. You may not need all rows. (Calculation steps are required) Fragment Total Length Identification Fragment Offset FragFlag 0 1 2 3 4 5 6 7

          IP Fragmentation - 6 points
Consider a router sending an IPv4 packet with a 7000-byte payload on an interface with an
MTU of 1500 bytes. Suppose that the value of the Identification header field in the original
packet is 25. Assume that there are no IP options. Fragment this packet and, using the
table below, fill in the fragmentation-related header fields for each fragment. You may not
need all rows. (Calculation steps are required)
Fragment Total Length Identification Fragment Offset FragFlag
0
1
2
3
4
5
6
7

Show more…

IP Fragmentation - 6 points
Consider a router sending an IPv4 packet with a 7000-byte payload on an interface with an
MTU of 1500 bytes. Suppose that the value of the Identification header field in the original
packet is 25. Assume that there are no IP options. Fragment this packet and, using the
table below, fill in the fragmentation-related header fields for each fragment. You may not
need all rows. (Calculation steps are required)
Fragment Total Length Identification Fragment Offset FragFlag
0
1
2
3
4
5
6
7

Added by Lee C.

Computer Science and Information Technology

Trishna Knowledge Systems 2018 Edition

Instant Answer

Solved by Expert Haricharan Gupta

Step 1

- The MTU is 1500 bytes, but this includes the IP header (20 bytes). - Maximum data per fragment = 1500 - 20 = 1480 bytes. Show more…

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IP Fragmentation - 6 points Consider a router sending an IPv4 packet with a 7000-byte payload on an interface with an MTU of 1500 bytes. Suppose that the value of the Identification header field in the original packet is 25. Assume that there are no IP options. Fragment this packet and, using the table below, fill in the fragmentation-related header fields for each fragment. You may not need all rows. (Calculation steps are required) Fragment | Total Length | Identification | Fragment Offset | Frag Flag 0 | 1500 | 25 | 0 | 1 1 | 1500 | 25 | 185 | 1 2 | 1500 | 25 | 370 | 1 3 | 1500 | 25 | 555 | 1 4 | 1500 | 25 | 740 | 1 5 | 1500 | 25 | 925 | 1 6 | 1000 | 25 | 1110 | 0

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