A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : On the Validation of TCP Sequence Numbers
Author(s) : Fernando Gont
David Borman
Filename : draft-gont-tcpm-tcp-seq-validation-01.txt
Pages : 15
Date : 2013-09-10
Abstract:
When TCP receives packets that lie outside of the receive window, the
corresponding packets are dropped and either an ACK, RST or no
response is generated due to the out-of-window packet, with no
further processing of the packet. Most of the time, this works just
fine and TCP remains stable, especially when a TCP connection has
unidirectional data flow. However, there are three scenarios in
which packets that are outside of the receive window should still
have their ACK field processed, or else a packet war will take place.
The aforementioned issues have affected a number of popular TCP
implementations, typically leading to connection failures, system
crashes, or other undesirable behaviors. This document describes the
three scenarios in which the aforementioned issues might arise, and
formally updates RFC 793 such that these potential problems are
mitigated.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-gont-tcpm-tcp-seq-validation
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-gont-tcpm-tcp-seq-validation-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-gont-tcpm-tcp-seq-validation-01
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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