Transport Options for UDP

Metadata

Publisher: IETF
Doc Type: Standard
Pages: 51
Abstract: 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.
Publication Date: 2025-10-01
Status Note: Proposed Standard
DOI: 10.17487/RFC9868
Link: https://doi.org/10.17487/RFC9868
Author(s): Dr. Joseph D. Touch
C. M. Heard

Latest version of IETF RFC 9868

Document Versions — IETF RFC 9868

▶ IETF RFC 9868 (2025-10-01)

THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

IETF RFC 768 [Active*]
IETF RFC 791 [Active*]
IETF RFC 1122 [Active*]
IETF RFC 2119 [Active*]
IETF RFC 8174 [Active*]
RFC9869 — RFC9869 EXTERNAL

Bibliographic Reference(s)

10.1145-359545.359563 — La78 EXTERNAL
IETF.draft-fairhurst-udp-options-cco-00 — I-D.fairhurst-udp-options-cco EXTERNAL
IETF.draft-heard-dnsop-udp-opt-large-dns-responses-00 — I-D.heard-dnsop-udp-opt-large-dns-responses EXTERNAL
IETF.draft-hildebrand-spud-prototype-03 — I-D.hildebrand-spud-prototype EXTERNAL
IETF.draft-touch-tcp-ao-encrypt-09 — I-D.touch-tcp-ao-encrypt EXTERNAL
IETF.draft-touch-tsvwg-udp-auth-opt-00 — I-D.touch-tsvwg-udp-auth-opt EXTERNAL
Zullo, R., Jones, T., and G. Fairhurst, "Overcoming the Sorrows of the Young UDP Options", 4th Network Traffic Measurement and Analysis Conference (TMA), 2020, <https://dl.ifip.org/db/conf/tma/tma2020/tma2020-camera-paper70.pdf>. EXTERNAL
CERT Coordination Center, "TCP implementations vulnerable to Denial of Service", Vulnerability Note VU#962459, Software Engineering Institute, CMU, 2018, <https://www.kb.cert.org/vuls/id/962459>. EXTERNAL
IETF RFC 793 [Superseded*]
IETF RFC 868 [Active*]
IETF RFC 1071 [Active*]
IETF RFC 1141 [Active*]
IETF RFC 1191 [Active*]
IETF RFC 2675 [Active*]
IETF RFC 2923 [Active*]
IETF RFC 3095 [Active*]
IETF RFC 3173 [Active*]
RFC3385 — RFC3385 EXTERNAL
IETF RFC 3692 [Active*]
IETF RFC 3828 [Active*]
IETF RFC 4301 [Active, Amended*]
IETF RFC 4340 [Active*]
RFC4380 — RFC4380 EXTERNAL
RFC4787 — RFC4787 EXTERNAL
IETF RFC 5925 [Active*]
RFC6081 — RFC6081 EXTERNAL
IETF RFC 6241 [Active*]
IETF RFC 6864 [Active*]
IETF RFC 6935 [Active*]
RFC6978 — RFC6978 EXTERNAL
IETF RFC 6994 [Active*]
IETF RFC 7011 [Active*]
IETF RFC 7323 [Active*]
IETF RFC 7950 [Active, Amended*]
IETF RFC 8040 [Active*]
IETF RFC 8085 [Active*]
IETF RFC 8126 [Active*]
IETF RFC 8200 [Active*]
IETF RFC 8201 [Active*]
IETF RFC 8446 [Superseded*]
RFC8504 — RFC8504 EXTERNAL
RFC8724 — RFC8724 EXTERNAL
IETF RFC 8899 [Active*]
IETF RFC 9040 [Active*]
IETF RFC 9147 [Active*]
RFC9187 — RFC9187 EXTERNAL
IETF RFC 9260 [Active*]
IETF RFC 9293 [Active*]
RFC9298 — RFC9298 EXTERNAL
RFC9648 — RFC9648 EXTERNAL
RFC9870 — RFC9870 EXTERNAL

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doi: 10.17487/RFC9868
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