Avoid IP fragmentation in DNS
draft-fujiwara-dnsop-avoid-fragmentation-01

Document Type Expired Internet-Draft (individual)
Last updated 2020-03-30 (latest revision 2019-09-27)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-fujiwara-dnsop-avoid-fragmentation-01.txt

Abstract

Path MTU discovery remains widely undeployed due to security issues, and IP fragmentation has exposed weaknesses in application protocols. Currently, DNS is known to be the largest user of IP fragmentation. It is possible to avoid IP fragmentation in DNS by limiting response size where possible, and signaling the need to upgrade from UDP to TCP transport where necessary. This document proposes to avoid IP fragmentation in DNS.

Authors

Kazunori Fujiwara (fujiwara@jprs.co.jp)
Paul Vixie (paul@redbarn.org)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)