Route a datagram across networks
01IPv4 provides best-effort datagram delivery through interconnected networks.
Related RFCs and changes
“Updates” changes part of an earlier RFC. “Obsoletes” replaces it. This list shows selected related documents.
DIAGRAM§ 2.2 ↗
RFC 791 · § 2.2EXAMPLE
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The next link gets a new frame while the final IP destination remains.
The next link gets a new frame while the final IP destination remains.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
IP does not promise delivery, ordering, or duplicate suppression.
- IP does not promise delivery, ordering, or duplicate suppression.
- Each hop selects a next hop; link-layer delivery and end-to-end IP addressing are different.
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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