RFC 843 · UNKNOWN · 1983
MON · 15 JUN 2026
Who talks TCP? - survey of 8 February 83
Overview
RFC 843, “Who talks TCP? - survey of 8 February 83”, is an Unknown document published in February 1983 by D. Smallberg. It obsoletes RFC 842. It has since been updated by RFC 844. It has been obsoleted by RFC 845 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This RFC is a survey of hosts to identify the implementation status of Telnet, FTP, and Mail on TCP. The list of hosts was taken from the NIC hostname table of 3-Feb-83. The tests were run on 8-Feb-83 and on 9-Feb-83 from ISI-VAXA.ARPA.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 843 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1983
- RFC 842 Who talks TCP? - survey of 1 February 83
- RFC 844 Who talks ICMP, too? - Survey of 18 February 1983
- RFC 841 Specification for message format for Computer Based Message Systems
- RFC 845 Who talks TCP? - survey of 15 February 1983
- RFC 840 Official protocols
- RFC 846 Who talks TCP? - survey of 22 February 1983
- RFC 839 Who talks TCP?
- RFC 847 Summary of Smallberg surveys