RFC 749 · PROPOSED STANDARD · 1978
TUE · 28 JUL 2026
Telnet SUPDUP-Output option
Overview
RFC 749, “Telnet SUPDUP-Output option”, is a Proposed Standard document published in September 1978 by B. Greenberg. The canonical text is published by the RFC Editor.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 749 is hosted at rfc-editor.org. Available in TXT,HTML.
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