Mention the difference between ARP, RARP and ICMP protocols

Asked By Margarete S Bryson 100 points N/A Posted on - 11/18/2014

What is Address Resolution Protocol (ARP)? What is Reverse Address resolution protocol (RARP)? What is the difference between these two protocols? How does each of these work? Where are these protocols used? What are the drawbacks of RARP? What is the Internet Control Message Protocol (ICMP)? What is it used for?

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Answered By Sharath Reddy 590495 points N/A #189316

Mention the difference between ARP, RARP and ICMP protocols

ARP stands for Address Resolution Protocol. It is a protocol used for mapping an IP address into a physical machine address identified in the local network. The physical machine address is also known as the MAC address or Media Access Control. In IPv4, the most common level of IP address in use nowadays is 32 bits long.

While in an Ethernet local area network, the address for every attached device is 48 bits long. The ARP cache, which is the usual name they call for the table used by ARP, is used to keep the association among every MAC address and its matching IP address. RARP stands for Reverse Address Resolution Protocol.

It is the protocol used by a physical machine connected to a local area network to request to learn its IP address. RARP is available for token ring local area networks, Fiber Distributed-Data Interface, and Ethernet.

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• Posted on - 12/22/2014
• Question Category: Network Security