RFC 768 · INTERNET STANDARD · 1980
WED · 29 JUL 2026
User Datagram Protocol
Overview
RFC 768, “User Datagram Protocol”, is an Internet Standard document published in August 1980 by J. Postel. It has since been updated by RFC 9868. The canonical text is published by the RFC Editor.
What “Internet Standard” means
A mature, widely-implemented specification that has completed the full IETF standards process — the highest maturity level on the standards track.
Read this RFC
The canonical text of RFC 768 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1980
- RFC 769 Rapicom 450 facsimile file format
- RFC 767 Structured format for transmission of multi-media documents
- RFC 770 Assigned numbers
- RFC 766 Internet Protocol Handbook: Table of contents
- RFC 771 Mail transition plan
- RFC 765 File Transfer Protocol specification
- RFC 772 Mail Transfer Protocol
- RFC 764 Telnet Protocol specification