From: crosser@average.org (Eugene Crosser)
To: linux-kernel@vger.kernel.org
Subject: Re: 2.4.0 tcp over firewall - no connection
Date: 11 Jan 2001 00:38:36 +0300 [thread overview]
Message-ID: <93ikos$p6r$1@pccross.average.org> (raw)
In-Reply-To: <m3itnnru8n.fsf@belphigor.mcnaught.org>
In article <m3itnnru8n.fsf@belphigor.mcnaught.org>,
Doug McNaught <doug@wireboard.com> writes:
>> I noticed rather strange behavior: stock 2.4.0 with old ISA 3Com
>> on UP compiled as UP cannot open TCP connection to hosts behind a
>> firewall. E.g. it is impossible to go to http://www.etrade.com/ -
>> connect just never finishes. 2.2.17 on the same hardware works
>> right. 2.4.0 on SMP over PPP connection works right too. MTU
>> is 1500 in both cases. In both cases, kernel is compiled with
>> netfilter as modules, but those are not loaded.
>
> Known problem, exhaustively discussed on the list, and not related
> to your NIC. Disable ECN (explicit congestion notification), either
> in your kernel compile or in /proc/sys/<something>.
This really was ECN, sorry for noise in this list...
Eugene
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prev parent reply other threads:[~2001-01-10 21:41 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-10 20:25 2.4.0 tcp over firewall - no connection Eugene Crosser
2001-01-10 21:07 ` Doug McNaught
2001-01-10 21:38 ` Eugene Crosser [this message]
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