IT Learning | Network | ARP
Everything might be not exactly correct in this article but it’s very useful for beginners to understand IT terms. If you want to learn IT but you don’t have any experiences to work in IT industries, I wish it helps you to understand IT and you like to study IT more.
What is ARP?
- ARP is Address Resolution Protocol
- ARP can discover MAC address from IP address.
- ARP is actually one of protocols.
1. Definition of ARP
The Address Resolution Protocol (ARP) is a communication protocol used for discovering the link layer address, such as a MAC address, associated with a given internet layer address, typically an IPv4 address.
Address Resolution Protocol – Wikipedia
This mapping is a critical function in the Internet protocol suite.
2. What is IP and MAC address?
IP address is the address on IT network which is used for your systems(laptops, servers, and so on).
When you use IT services, you need to access IT system such as a web site. Then IP address tells you where you should go connecting to that web site.
MAC address is a unique identification number. If IP address were your house address, MAC address would be your name plate.
You need to know both IP and MAC address to deliver data as follows.
ARP ask that “Which MAC address does use this IP address??”.
3. ARP EXAMPLE
If MAC address were pirate’s name, IP address would be his bounty.
ARP girl asked their bounty but nobody answered her because their bounty is different.
One of them answered when that was his bounty, then the ARP girl wrote his name with his bounty on “ARP table”.
4. Related Information
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Information Source
Address Resolution Protocol – Wikipedia
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