What is the process of finding the IP address using a MAC address?

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Study for the Network Security Instructional Terminology Test. Enhance your knowledge with multiple choice questions, each accompanied by hints and explanations. Ensure readiness for your exam!

Multiple Choice

What is the process of finding the IP address using a MAC address?

Explanation:
Finding the IP address from a MAC address is a MAC-to-IP lookup. The protocol that does this direction of mapping is Reverse Address Resolution Protocol. It lets a device that only knows its hardware address ask on the network, “What is my IP for this MAC?” and receive the corresponding IP from a RARP server. ARP, by contrast, maps IP to MAC, which is the opposite direction needed when the device already knows an IP and wants the MAC to reach it. DHCP assigns an IP to a host, often based on its MAC, but it’s about obtaining an IP dynamically rather than discovering it from the MAC. DNS translates domain names to IP addresses, not hardware addresses.

Finding the IP address from a MAC address is a MAC-to-IP lookup. The protocol that does this direction of mapping is Reverse Address Resolution Protocol. It lets a device that only knows its hardware address ask on the network, “What is my IP for this MAC?” and receive the corresponding IP from a RARP server.

ARP, by contrast, maps IP to MAC, which is the opposite direction needed when the device already knows an IP and wants the MAC to reach it. DHCP assigns an IP to a host, often based on its MAC, but it’s about obtaining an IP dynamically rather than discovering it from the MAC. DNS translates domain names to IP addresses, not hardware addresses.

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