linux-kernel - Re: time for TCP ECN defaulting to on?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20081106.204929.161401868.davem@davemloft.net>
Date:	Thu, 06 Nov 2008 20:49:29 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	swmike@....pp.se
Cc:	daniel.blueman@...il.com, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, linux-net@...r.kernel.org
Subject: Re: time for TCP ECN defaulting to on?

From: Mikael Abrahamsson <swmike@....pp.se>
Date: Fri, 7 Nov 2008 05:46:28 +0100 (CET)

> I see that in
> <http://www.icir.org/floyd/papers/draft-ietf-tsvwg-tcp-ecn-00.txt>
> there is a recommendation to not use ECN on retransmits, is there
> code right now (or planned) to do some kind of "ECN blackhole
> detection", ie if no response is received to SYN with ECN set,
> continue by sending the second SYN without ECN and keep this
> information for the duration of the TCP session?

No, we are firmly against any form of ECN blackhole detection.  Alexey Kuznetsov and
Sally Floyd argued this out exhaustively several years ago.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/