I-D Action: draft-andrews-tcp-and-ipv6-use-minmtu-03.txt
internet-drafts@ietf.org Fri, 16 October 2015 21:54 UTC
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Subject: I-D Action: draft-andrews-tcp-and-ipv6-use-minmtu-03.txt
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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-03.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-03 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-andrews-tcp-and-ipv6-use-minmtu-03 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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