Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266997AbTGTMOd (ORCPT ); Sun, 20 Jul 2003 08:14:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267004AbTGTMOd (ORCPT ); Sun, 20 Jul 2003 08:14:33 -0400 Received: from zork.zork.net ([64.81.246.102]:52432 "EHLO zork.zork.net") by vger.kernel.org with ESMTP id S266997AbTGTMOc (ORCPT ); Sun, 20 Jul 2003 08:14:32 -0400 To: James Morris Cc: netdev@oss.sgi.com, Subject: Re: [2.6.0-test1-mm1] TCP connections over ipsec hang after a few seconds References: From: Sean Neakums Mail-Followup-To: James Morris , netdev@oss.sgi.com, In-Reply-To: (James Morris's message of "Sun, 20 Jul 2003 15:58:13 +1000 (EST)") Date: Sun, 20 Jul 2003 13:29:24 +0100 Message-ID: <6u8yqt8jq3.fsf@zork.zork.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1372 Lines: 31 James Morris writes: > On Sat, 19 Jul 2003, Sean Neakums wrote: > >> twenty. The problem seems unrelated to the amount of data >> transferred; I've tried both bulk rsync transfers and ssh sessions. >> I've also tested the same boxes over 100baseT; still happens. > > It sounds a bit like a pmtu problem related to the wireless bridge, but > that would be dependent on amount of data transferred and should not > happen on 100baseT. I am seeing a lot of "pmtu discvovery on SA AH/03537192/c0a80003" type messages (I forgot to check for them when on 100baseT; will recheck that). Are these indicative of such a problem? I seem to recall that reducing the max MTU is not as straightforward as just adjusting the interfaces' mtu setting. What should I do to eliminate pmtu as the source of the problem? > Transport mode (just blowfish encryption) looks to be working ok for me, > I'm able to ftp uncompressed kernel tarballs between two boxes over > gigabit ethernet with no apparent problems. I had been using 3des with AH; just retried with blowfish 448 and no AH with much the same result. - 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/