From owner-freebsd-net@FreeBSD.ORG Wed Dec 27 05:59:12 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 3BC1716A407 for ; Wed, 27 Dec 2006 05:59:12 +0000 (UTC) (envelope-from alex@pilosoft.com) Received: from bawx.pilosoft.com (colo-69-31-40-106.pilosoft.com [69.31.40.106]) by mx1.freebsd.org (Postfix) with ESMTP id E6D8913C46D for ; Wed, 27 Dec 2006 05:59:09 +0000 (UTC) (envelope-from alex@pilosoft.com) Received: from bawx.pilosoft.com (localhost [127.0.0.1]) by bawx.pilosoft.com (8.12.5/8.12.5) with ESMTP id kBR5p0m0018021; Wed, 27 Dec 2006 00:51:00 -0500 Received: from localhost (alex@localhost) by bawx.pilosoft.com (8.12.5/8.12.5/Submit) with ESMTP id kBR5p0iG018017; Wed, 27 Dec 2006 00:51:00 -0500 X-Authentication-Warning: bawx.pilosoft.com: alex owned process doing -bs Date: Wed, 27 Dec 2006 00:51:00 -0500 (EST) From: alex@pilosoft.com To: Stephan Wehner In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Cc: freebsd-net@freebsd.org Subject: Re: Diagnose co-location networking problem X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Dec 2006 05:59:12 -0000 On Tue, 26 Dec 2006, Stephan Wehner wrote: > Ok, thanks, I now ran tcpdump with -n. > > Here I am testing with a little script that continuously accesses one of > the pages. Right at the beginning it doesn't get very far: first > response after 90 seconds. > > What kind of DNS problem did you have in mind? Sorry, this doesn't seem to be DNS.. It may be something related to link/autonegotiation, or it could be something beyond your control, on the Internet between the two hosts in question. Are you able to do a traceroute when your connections fail? Where does the trace stop? -alex