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Mechanisms of IP Fragmentation, TCP Flow Control, and ARP Spoofing Detection in Network Security

This document discusses critical mechanisms related to IP fragmentation, TCP flow control, and ARP spoofing detection in network security.

Olivia Smith
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Mechanisms of IP Fragmentation, TCP Flow Control, and ARPSpoofing Detection in Network Security1.Explain the mechanisms of IP fragmentation and reassembly,and describe the role of intermediate routers and the receiver inthis process.Additionally, explain the TCP flow control andretransmission process when a segment is lost during datatransmission.Answer 1Ip fragmentation and reassembly are total different mechanism and not identical to eachother. The main difference between two of them is that the intermediate routers performfragmentation and they do not perform reassembly of an IP datagram. The reassemblytakes place at receiver site. When the data travels over the internet, intermediate routersdivide the whole information into smaller segments known as packets (datagram’s).There are thousands reasons why reassembly of an IP datagram has to made onreceiverside. The substantial reason is that the packets can take different routes so that they canreach their real destination.('IP fragment reassembly vulnerability', 2000)This mean isthat the whole information goes through multiple routers. Hence, multiple paths areavailable to transmit data.If the task of reassembly is handed over to intermediate routers then all fragments of amessage are unavailable. The intermediate router is unable to see all the fragments.System becomes more complex if reassembly carries out by the middle routers. Apartfrom them, there are thousands of drawbacks associated if reassembly attempts while thedata is being sent. If reassembly begins in intermediate routers then there are high

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