RFC 840 · HISTORIC · 1983 TUE · 15 SEP 2026

Official protocols

By J. Postel · Published April 1983 · DOI 10.17487/RFC0840

Overview

RFC 840, “Official protocols”, is a Historic document published in April 1983 by J. Postel. It has been obsoleted by RFC 880 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

Abstract

This RFC has been revised, see RFC 880.

Abstract as published in the RFC, via rfc-editor.org.

What “Historic” means

A specification that has been superseded or is otherwise no longer recommended for use.

Read this RFC

The canonical text of RFC 840 is hosted at rfc-editor.org. Available in TXT,HTML.

Read on rfc-editor.org Plain text › HTML › IETF Datatracker › DOI link ›
Relationships to other RFCs
Obsoleted by
RFC 880
Other RFCs from 1983