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RFC 9868: Transport Options for UDP

In plain English — editorial summary, not part of the RFC

Transport protocols are extended through the use of transport header options. This document updates RFC 768 (UDP) by indicating the location, syntax, and semantics for UDP transport layer options within the surplus area after the end of the UDP user data but before the end of the IP datagram.

Document record

Document ID
RFC9868
Published
October 2025
Authors
J. Touch; C. Heard
Status
PROPOSED STANDARD
Stream
IETF
Area
wit
Pages
51
Also known as
—
Updates:
RFC 768

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/9868-transport-options-for-udp