Exercise 5.2.6 Use your textbook and the Internet to determine the communication steps in anARP Request and Response. What steps are involved and how is each message sent ( broadcastto all devices or unicast to a single device)?1. Based on the interface and the forwarding IP address, ARP consults the appropriate ARPcache for an entry for the forwarding IP address. If an entry is found, ARP skips to step 6.2. If the entry is not found, ARP builds an ARP Request frame containing the MAC addressof the interface sending the ARP Request, the IP address of the interface sending the ARPRequest, and the forwarding IP address. ARP then broadcasts the ARP Request using theappropriate interface.3. All hosts receive the broadcasted frame and the ARP Request is processed. If thereceiving host's IP address matches the requested IP address (the forwarding IP address),its ARP cache is updated with the address mapping of the sender of the ARP Request.If the receiving host's IP address does not match the requested IP address, the ARPRequest is silently discarded.4. The receiving host formulates an ARP Reply containing the requested MAC address andsends it directly to the sender of the ARP Request.5. When the ARP Reply is received by the sender of the ARP Request, it updates its ARPcache with the address mapping.Between the ARP Request and the ARP Reply, both hosts have each other's addressmappings in their ARP caches.6. The IP packet is sent to the forwarding host by addressing it to the resolved MACaddress.Exercise 5.2.7 The argument - a will display the IP/ MAC paired address table for the computer.In the command window, type the following command and record the results: arp – aIs not recognized as an internal or external command.

Solution : Answer 5.2.6 : already given in the question in points from 1-6. Answer 5.2.7 : on…

ercise 5.2.7 The argument - a will display the IP/ MAC paired address table for the computer. the command window, type the following command and record the results: arp – a hot recognized as an internal or external command.

ercise 5.2.7 The argument - a will display the IP/ MAC paired address table for the computer. the command window, type the following command and record the results: arp – a hot recognized as an internal or external command.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.

Question

Exercise 5.2.6 Use your textbook and the Internet to determine the communication steps in an
ARP Request and Response. What steps are involved and how is each message sent ( broadcast
to all devices or unicast to a single device)?
1. Based on the interface and the forwarding IP address, ARP consults the appropriate ARP
cache for an entry for the forwarding IP address. If an entry is found, ARP skips to step 6.
2. If the entry is not found, ARP builds an ARP Request frame containing the MAC address
of the interface sending the ARP Request, the IP address of the interface sending the ARP
Request, and the forwarding IP address. ARP then broadcasts the ARP Request using the
appropriate interface.
3. All hosts receive the broadcasted frame and the ARP Request is processed. If the
receiving host's IP address matches the requested IP address (the forwarding IP address),
its ARP cache is updated with the address mapping of the sender of the ARP Request.
If the receiving host's IP address does not match the requested IP address, the ARP
Request is silently discarded.
4. The receiving host formulates an ARP Reply containing the requested MAC address and
sends it directly to the sender of the ARP Request.
5. When the ARP Reply is received by the sender of the ARP Request, it updates its ARP
cache with the address mapping.
Between the ARP Request and the ARP Reply, both hosts have each other's address
mappings in their ARP caches.
6. The IP packet is sent to the forwarding host by addressing it to the resolved MAC
address.
Exercise 5.2.7 The argument - a will display the IP/ MAC paired address table for the computer.
In the command window, type the following command and record the results: arp – a
Is not recognized as an internal or external command.

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