From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 5 Jan 2001 10:42:46 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 5 Jan 2001 10:42:35 -0500 Received: from esteel10.client.dti.net ([209.73.14.10]:64396 "EHLO nynews01.e-steel.com") by vger.kernel.org with ESMTP id ; Fri, 5 Jan 2001 10:42:20 -0500 To: linux-kernel@vger.kernel.org Path: not-for-mail From: Mathieu Chouquet-Stringer Newsgroups: e-steel.mailing-lists.linux.linux-kernel Subject: Re: kernel network problem ? Date: 05 Jan 2001 10:42:14 -0500 Organization: e-STEEL Netops news server Message-ID: In-Reply-To: <000d01c07724$8fa531f0$8900030a@nicolasp> NNTP-Posting-Host: shookay.e-steel X-Trace: nynews01.e-steel.com 978709263 3112 192.168.3.43 (5 Jan 2001 15:41:03 GMT) X-Complaints-To: news@nynews01.e-steel.com NNTP-Posting-Date: 5 Jan 2001 15:41:03 GMT X-Newsreader: Gnus v5.7/Emacs 20.7 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org You have to take a look at ENC: Explicit Congestion Notification (ECN) allows routers to notify clients about network congestion, resulting in fewer dropped packets and increased network performance. This option adds ECN support to the Linux kernel, as well as a sysctl (/proc/sys/net/ipv4/tcp_ecn) which allows ECN support to be disabled at runtime. Note that, on the Internet, there are many broken firewalls which refuse connections from ECN-enabled machines, and it may be a while before these firewalls are fixed. Until then, to access a site behind such a firewall (some of which are major sites, at the time of this writing) you will have to disable this option, either by saying N now or by using the sysctl. You can disable it at runtime with: echo 0 > /proc/sys/net/ipv4/tcp_ecn nparpand@perinfo.com ("Nicolas Parpandet") writes: > Hi all, > > I'm testing 2.4 series for few weeks, > even the last prerelease > > I've seen stranges things : > > I cannot access to some ips adresses ! : > in http or in smtp using "konqueror", "netscape", > "mail", "telnet 25". > > I cannot login to hotmail (in the web page:http) > or send mail (smtp) to hotmail users (don't blame me !!) > All the others network things works well, the network in general seems > good only very few sites like hotmail doesn't works. > > And only with 2.4 series !! not with 2.2 ... > > maybe it's a glibc or kernel issue, I'dont know. > I have an intel SMP motherboard connected to the net (cable) > with a PCI realtek 8019. > > I didn't analyse packets sent. If somebody else have the > same problems ... > > Nicolas. > > Sorry for my poor english. > > PS: funny "bug" isn't it ? (hotmail !) > PS2: thanks for all, very good job done, > 2.4 is very fast and seems stable. > > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > Please read the FAQ at http://www.tux.org/lkml/ > -- Mathieu CHOUQUET-STRINGER E-Mail : mchouque@e-steel.com Learning French is trivial: the word for horse is cheval, and everything else follows in the same way. -- Alan J. Perlis - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/