### ARP Command Exercise#### InstructionsUse the **`arp`** command for the following questions 5.1 - 5.3.#### Questions**5.1** Approximately how many records do you have in your ARP table for the interface listed in the answer to Question 2.1? (Use the command **`arp -a`** on Windows and **`arp`** on Linux.)*Your Answer:*______________________________________________________________.**5.2** What information does each record of the ARP table hold? (Hint: look at the columns of the output to your command.)*Your Answer:*______________________________________________________________ ______________________________________________________________ ______________________________________________________________.**5.3** Do you have both statically and dynamically assigned MAC addresses for this interface? Briefly elaborate on what it means.*Your Answer:*______________________________________________________________ ______________________________________________________________ ______________________________________________________________.

An Address Resolution Protocol ARP entry allows the interface to communicate with another interface even if they are not in the same multicast groups.5.1 An ARP entry can be created manually using the command: arp -t ib. To display all ARP entries, run the command $ arp -t ib -a. If you want to display a specific number of ARP entry, you can specify the numbers. For example, $ arp -t ib -a 5 displays for 5 ARP entries. 5.2 Each switch has the ARP Address Resolution Protocol table to store the IP addresses and the MAC addresses of the network devices. The ARP tables are used to determine the destination MAC addresses of the network nodes, as well as the VLANs and the ports from where the nodes are reached. An Address Resolution Protocol cache ARP cache is a repository for the data that is used to connect an IP address to the Media Access Control MAC address for the physical machine and device in a local network. The ARP cache can hold the data for both wireless and Ethernet routing, and helps to route the packets to the right endpoint. To display the ARP tables on any system, just type "arp -a" this same command will show the arp table in the command prompt on the Windows box, by the way. The output from arp -a will list the network interfaces, target system and physical MAC address of each systems. Command: $ arp -a 5.3 It means using DHCP next to Configure IPv4, then our system uses a dynamic IP addresses. If the section says Manually, we have a static IP. If we prefer, we can always contact our ISP to get more information about our IP address and the network type. Most of the devices use dynamic IP addresses, which are assigned by the network when they connect and change over the time. If a dynamic address is not in the use, it can be automatically assigned to the different devices. Dynamic IP addresses are assigned using either the DHCP or the PPPoE. If we get our internet service through an ISP and cable company, in most cases they assign us a dynamic IP address. By default, an ARP policer is installed that is shared among the all Ethernet interfaces on which we have configured the family inet statements. By including the arp statement at the edit interfaces interface-name unit logical-unit-number family inet policer hierarchy levels, we can apply a specific ARP-packet policer to the interface. Command: user@host# edit interfaces interface-name

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5 Use command arp for the following questions 5.1-5.3. 5.1 Approximately how many records do you have in your ARP table for the interface listed in the answer to Q 2.1 ? (use command arp -a on Windows and arp on Linux) 5.2 What information does each record of ARP table holds? (Hint, look at the columns of the output to your command.) 5.3 Do you have both statically and dynamically assigned MAC addresses for this interface? Briefly elaborate what it means.

5 Use command arp for the following questions 5.1-5.3. 5.1 Approximately how many records do you have in your ARP table for the interface listed in the answer to Q 2.1 ? (use command arp -a on Windows and arp on Linux) 5.2 What information does each record of ARP table holds? (Hint, look at the columns of the output to your command.) 5.3 Do you have both statically and dynamically assigned MAC addresses for this interface? Briefly elaborate what it means.

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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