A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : TCP Fails To Respect IPV6_USE_MIN_MTU
Author : M. Andrews
Filename : draft-andrews-tcp-and-ipv6-use-minmtu-02.txt
Pages : 4
Date : 2015-10-16
Abstract:
The IPV6_USE_MIN_MTU [RFC3542], Section 11.1, socket option directs
the IP layer to limit the IPv6 packet size to the minimum required
supported MTU from the base IPv6 specification [RFC2460], i.e. 1280
bytes. Many implementations of TCP running over IPv6 neglect to
check the IPV6_USE_MIN_MTU value when performing MSS negotiation and
when constructing a TCP segment. This leads to oversized IPv6
packets being sent resulting in unintended Path Maximum Transport
Unit Discovery (PMTUD) [RFC1191] being performed and to fragmented
IPv6 packets being sent.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-andrews-tcp-and-ipv6-use-minmtu/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-andrews-tcp-and-ipv6-use-minmtu-02
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-andrews-tcp-and-ipv6-use-minmtu-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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