Remember ARP
Full name: Address Resolution Protocol
Memory aid: Address Resolution finds the local hardware destination.
IPv6 uses Neighbor Discovery rather than ARP.
Study area: Protocols & logical ports · Batch 2
Relevant study for: CompTIA Network+ N10-009 · Cisco CCNA 200-301 · CompTIA A+ Core 1 220-1201 · CompTIA Security+ SY0-701 · ISC2 CISSP 2024 outline
Practice with exam flashcards →Networking & Connectivity / Knowledge library
ARP — Address Resolution Protocol
Resolves local IPv4 next-hop addresses to link-layer addresses.
Why learn ARP — Address Resolution Protocol?
Resolves local IPv4 next-hop addresses to link-layer addresses.
Where it came from
IPv6 uses Neighbor Discovery rather than ARP.
- Memory aid (a learning cue, not the expansion): Address Resolution finds the local hardware destination.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand ARP: Address Resolution Protocol.
- Recall this memory aid: Address Resolution finds the local hardware destination.
- Explain the practical use: Resolves local IPv4 next-hop addresses to link-layer addresses.
- Explain this distinction: IPv6 uses Neighbor Discovery rather than ARP.
- Identify ARP in a device specification, architecture diagram, or system inventory.
Documentation and sources
- IETF RFC 826 (www.rfc-editor.org)