Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 25 Jul 2002 18:05:57 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 25 Jul 2002 18:05:57 -0400 Received: from pieck.student.uva.nl ([146.50.96.22]:64900 "EHLO pieck.student.uva.nl") by vger.kernel.org with ESMTP id ; Thu, 25 Jul 2002 18:05:57 -0400 Content-Type: text/plain; charset=US-ASCII From: Rudmer van Dijk Reply-To: rvandijk@science.uva.nl Organization: UvA To: Bruce Cran , linux-kernel@vger.kernel.org Subject: Re: wrong mtu value in /proc/net/route Date: Fri, 26 Jul 2002 00:14:30 +0200 X-Mailer: KMail [version 1.3.2] References: <20020725223410.A18965@steely.transient> In-Reply-To: <20020725223410.A18965@steely.transient> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <20020725220557Z316579-685+18235@vger.kernel.org> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1012 Lines: 20 On Thursday 25 July 2002 23:34, Bruce Cran wrote: > I've found something strange going on in 2.4 kernels - when I run > 'netstat -r' I get the routing table from /proc/net/route. The MSS > value reported is only 40 bytes, and when I run 'cat > /proc/net/route I'm told that the _MTU_ is 40 bytes. I thought the MSS > was supposed to be the MTU - 40 bytes, not 40 bytes in > total, where the MTU for ethernet is 1500. If I run ifconfig, it reports > the correct MTU of 1500 for eth0 and 16463 for lo. This computer has a > NetGear FA311 card, and is running 2.4.19-pre7-ac2, though I've also seen > this happening on a 2.4.18 kernel. I see the same values on 2.4.19-rc3-ac3 with two Winbond Electronics Corp W89C940 NIC's. no idea what is causing it. Rudmer - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/