RFC 966 · UNKNOWN · 1985
SUN · 14 JUN 2026
Host groups: A multicast extension to the Internet Protocol
Overview
RFC 966, “Host groups: A multicast extension to the Internet Protocol”, is an Unknown document published in December 1985 by S.E. Deering, D.R. Cheriton. It has been obsoleted by RFC 988 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This RFC defines a model of service for Internet multicasting and proposes an extension to the Internet Protocol (IP) to support such a multicast service. Discussion and suggestions for improvements are requested. See RFC-988.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 966 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1985
- RFC 965 Format for a graphical communication protocol
- RFC 967 All victims together
- RFC 964 Some problems with the specification of the Military Standard Transmission Control Protocol
- RFC 968 Twas the night before start-up
- RFC 963 Some problems with the specification of the Military Standard Internet Protocol
- RFC 969 NETBLT: A bulk data transfer protocol
- RFC 962 TCP-4 prime
- RFC 970 On Packet Switches With Infinite Storage