RFC 781 · UNKNOWN · 1981
MON · 27 JUL 2026
Specification of the Internet Protocol timestamp option
Overview
RFC 781, “Specification of the Internet Protocol timestamp option”, is an Unknown document published in May 1981 by Z. Su. The canonical text is published by the RFC Editor.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 781 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1981
- RFC 780 Mail Transfer Protocol
- RFC 782 Virtual Terminal management model
- RFC 779 Telnet send-location option
- RFC 783 TFTP Protocol
- RFC 778 DCNET Internet Clock Service
- RFC 784 Mail Transfer Protocol: ISI TOPS20 implementation
- RFC 777 Internet Control Message Protocol
- RFC 785 Mail Transfer Protocol: ISI TOPS20 file definitions