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To: linux-kernel@vger.kernel.org
Subject: Re: ECN for servers ?
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	<96eqhm$33k$1@cesium.transmeta.com>
From: Graham Murray <graham@barnowl.demon.co.uk>
Date: 14 Feb 2001 22:11:57 +0000
In-Reply-To: <96eqhm$33k$1@cesium.transmeta.com> ("H. Peter Anvin"'s message of "14 Feb 2001 12:41:26 -0800")
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"H. Peter Anvin" <hpa@zytor.com> writes:

> Con: people behind broken firewalls can't connect.

Are you sure that is correct?  "Servers" normally listen for incoming
connections from clients rather than establish them[1]. So, if the
server implements ECN then it will respond appropriately to incoming
SYN packets irrespective of whether the ECN bits are set. People, who
use ECN, who are behind a broken firewall will have problems
connecting irrespective of whether or not the server implements ECN.


[1] Passive FTP being an exception.
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