Set IP Address to MAC Address on Host Machine - Technician's Guide

A technician wants to set an IP address to a specific MAC address on a host machine.

Which of the following commands should the technician use?

A.

ipconfig

B.

nslookup

C.

arp

D.

dig.

C.

The correct command for setting an IP address to a specific MAC address on a host machine is the "arp" command.

Address Resolution Protocol (ARP) is a protocol used to map a network address (such as an IP address) to a physical address (such as a MAC address).

When a computer needs to communicate with another device on the network, it will first look up the MAC address of the device using ARP. Once it has the MAC address, it can send data to that device.

To set an IP address to a specific MAC address, the technician can use the "arp" command with the "-s" option, which allows the technician to add a static entry to the ARP cache. The syntax of the command would be as follows:

arp -s [IP address] [MAC address]

For example, if the technician wanted to set the IP address 192.168.1.10 to the MAC address 00-11-22-33-44-55, they would enter the following command:

arp -s 192.168.1.10 00-11-22-33-44-55

This would add a static entry to the ARP cache, mapping the IP address 192.168.1.10 to the MAC address 00-11-22-33-44-55.