IP Fragmentation Avoidance in DNS over UDP
RFC 9715
Revision differences
Document history
| Date | By | Action |
|---|---|---|
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2026-05-20
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(System) | Changed metadata: changed keywords to '['DNS', 'IP Fragmentation', 'attack']' from '[]' |
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2026-05-20
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(System) | Metadata update from RFC Editor |
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2026-05-20
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(System) | Changed author "P. Vixie": changed name from "Paul Vixie" to "P. Vixie", cleared country (was "United States of America") |
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2026-05-20
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(System) | Changed author "K. Fujiwara": changed name from "Kazunori Fujiwara" to "K. Fujiwara", changed affiliation from "Japan Registry Services Co., Ltd." to "JPRS", cleared country (was … Changed author "K. Fujiwara": changed name from "Kazunori Fujiwara" to "K. Fujiwara", changed affiliation from "Japan Registry Services Co., Ltd." to "JPRS", cleared country (was "Japan") |
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2026-05-20
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(System) | Metadata update from RFC Editor |
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2026-02-19
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Morgan Condie | Downref to RFC 9715 approved by Last Call for draft-ietf-dnsop-3901bis-17 |
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2025-01-27
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(System) | Received changes through RFC Editor sync (created document RFC 9715, created became rfc relationship between draft-ietf-dnsop-avoid-fragmentation and RFC 9715, set abstract to 'The … Received changes through RFC Editor sync (created document RFC 9715, created became rfc relationship between draft-ietf-dnsop-avoid-fragmentation and RFC 9715, set abstract to 'The widely deployed Extension Mechanisms for DNS (EDNS(0)) feature in the DNS enables a DNS receiver to indicate its received UDP message size capacity, which supports the sending of large UDP responses by a DNS server. Large DNS/UDP messages are more likely to be fragmented, and IP fragmentation has exposed weaknesses in application protocols. It is possible to avoid IP fragmentation in DNS by limiting the response size where possible and signaling the need to upgrade from UDP to TCP transport where necessary. This document describes techniques to avoid IP fragmentation in DNS.', set pages to 13, set standardization level to Informational, added RFC published event at 2025-01-27) |
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2025-01-27
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(System) | RFC published |