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Address Resolution Protocol (ARP)

COURSE LESSON

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Network Layer Structures and Operations

Explore how ARP maps IP addresses to MAC addresses on local networks. This lecture covers how ARP works, where it's stored (ARP cache), and how it's exploited in spoofing attacks.

Key topics:

  • ARP Request/Reply mechanics

  • ARP tables and aging

  • Gratuitous ARP

  • ARP poisoning scenarios