RFC 861 · INTERNET STANDARD · 1983
MON · 15 JUN 2026
Telnet Extended Options: List Option
Overview
RFC 861, “Telnet Extended Options: List Option”, is an Internet Standard document published in May 1983 by J. Postel, J. Reynolds. The canonical text is published by the RFC Editor.
Abstract
This Telnet Option provides a mechanism for extending the set of possible options. This RFC specifies a standard for the ARPA Internet community. Hosts on the ARPA Internet are expected to adopt and implement this standard. Obsoletes NIC 16239.
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 861 is hosted at rfc-editor.org. Available in TXT,HTML.
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