Read the variable-address packet
03ARP identifies hardware and protocol spaces, address lengths, opcode, and sender and target address pairs.
Terms in this drawing
Related RFCs and changes
“Updates” changes part of an earlier RFC. “Obsoletes” replaces it. This list shows selected related documents.
DIAGRAMPacket format ↗
RFC 826 · Packet formatEXAMPLE
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03
The opcode determines request or reply, not the shape of an IP header.
The opcode determines request or reply, not the shape of an IP header.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
For Ethernet/IPv4, hardware and protocol address lengths are six and four octets.
- For Ethernet/IPv4, hardware and protocol address lengths are six and four octets.
- Multibyte values use the specified network transmission order.
The drawing is a simplified worked example. Follow the linked RFC and its updates for implementation requirements.
Read the RFC section ↗Diagrams simplify the RFC. Read the linked sections for complete requirements.
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