ARP
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What is ARP?
ARP, or Address Resolution Protocol, is used to map an IP address to a physical MAC address on a local network. When a device wants to communicate with another device on the same network, it uses ARP to discover which MAC address corresponds to a known IP address. The result is stored temporarily in an ARP cache to speed up future lookups.
Free resources to learn ARP
More in stage 2: What are Networks?
ARP: common questions
Can I learn ARP in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain ARP in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this ARP tutorial for beginners?
It is lesson 22 of 195 in the free Network Engineer roadmap, in stage 2, What are Networks?. If you are new to Network Engineer, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.