What are the Functions and Roles of ARP Protocol in Computer
Networking?
The following explanation
What are the
Functions and Roles of ARP Protocol in Computer Networking? - ARP Protocol or
Address Resolution Protocol is a protocol responsible for finding out Mac
Address or hardware address of a Host incorporated in a LAN network by using or
based on IP Address which is configured on the Host in question. In the OSI
layer, this protocol works between Layer 2 and Layer 3. It is important for us
to know what the role of this ARP protocol is. Therefore, here I outline just a
few of the functions and roles of the ARP Protocol.
1. The role of ARP protocol is
very important in the network, especially regarding data communications that
occur in the network. Each host that is joined or connected in a LAN network
communicates using a physical address (Mac Address) and does not use a logical
address (IP Address).
2. It says on point number one,
that each Host communicates using a physical address (Mac Address). So,
inevitably every Host who wants to communicate with other Host must know the
Mac Address which is owned by the host destination.
3. Then how can a Host get
information about Mac Address from Host destination? The answer is in the data
transfer stage. Before a given data Mac address, first the data is given a
logical address in the form of IP Address. This added IP address is the IP
address of the Sender Host and the Receiver Host.
4. Then specify the physical address
or Mac Address of the destination host. Well, if not known physical address,
would not want to be searched first. Here is the role of the ARP protocol, by
utilizing the host's destination IP address information, the sender Host
performs the search by assigning the ARP Protocol.
5. Then how the hell detail the
workings of the ARP protocol itself? Here is a brief explanation of how the ARP
protocol works:
What is the Function and Role of
ARP Protocol in Computer Networking (Networking) Here Explanation
a. Initially the ARP protocol
sends a message that is broadcast or comprehensive. The contents of the message
are in the form of a page host address Mac address based on each host's IP
address. This request message is sent thoroughly to all Hosts that are incorporated
in the LAN network.
b. After the message arrives at
the destination Host, the destination Host will reply to the message with a
reply message containing the physical address or Mac Address corresponding to
the requested IP address.
In conclusion,
this ARP protocol is tasked with how to filter each host that is incorporated
in the network and find out what the address of the Mac address of the IP
address in question. So, it can be said that the ARP protocol is guessed as a
translator of the logical address of the IP address into a physical address of
the Mac Address.