A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IPv6 Maintenance Working Group of the IETF.
Title : Deprecating the Generation of IPv6 Atomic Fragments
Authors : Fernando Gont
Will(Shucheng) Liu
Tore Anderson
Filename : draft-ietf-6man-deprecate-atomfrag-generation-02.txt
Pages : 10
Date : 2015-07-04
Abstract:
The core IPv6 specification requires that when a host receives an
ICMPv6 "Packet Too Big" message reporting an MTU smaller than 1280
bytes, the host includes a Fragment Header in all subsequent packets
sent to that destination, without reducing the assumed Path-MTU. The
simplicity with which ICMPv6 "Packet Too Big" messages can be forged,
coupled with the widespread filtering of IPv6 fragments, results in
an attack vector that can be leveraged for Denial of Service
purposes. This document briefly discusses the aforementioned attack
vector, and formally updates RFC2460 such that generation of IPv6
atomic fragments is deprecated, thus eliminating the aforementioned
attack vector.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-6man-deprecate-atomfrag-generation/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-6man-deprecate-atomfrag-generation-02
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-6man-deprecate-atomfrag-generation-02
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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