From owner-freebsd-questions Thu Nov 14 07:50:52 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id HAA22814 for questions-outgoing; Thu, 14 Nov 1996 07:50:52 -0800 (PST) Received: from Campino.Informatik.RWTH-Aachen.DE (campino.Informatik.RWTH-Aachen.DE [137.226.225.2]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id HAA22433 for ; Thu, 14 Nov 1996 07:50:15 -0800 (PST) Received: from gilberto.physik.rwth-aachen.de (gilberto.physik.rwth-aachen.de [137.226.31.2]) by Campino.Informatik.RWTH-Aachen.DE (RBI-Z-5/8.6.12) with ESMTP id QAA22860; Thu, 14 Nov 1996 16:51:16 +0100 Received: (from kuku@localhost) by gilberto.physik.rwth-aachen.de (8.6.11/8.6.9) id RAA08975; Thu, 14 Nov 1996 17:01:52 +0100 From: Christoph Kukulies Message-Id: <199611141601.RAA08975@gilberto.physik.rwth-aachen.de> Subject: Re: arp info overwritten In-Reply-To: from Seppo Kallio at "Nov 14, 96 04:38:45 pm" To: kallio@cc.jyu.fi (Seppo Kallio) Date: Thu, 14 Nov 1996 17:01:51 +0100 (MET) Cc: shovey@buffnet.net, freebsd-questions@freebsd.org Reply-To: Christoph Kukulies X-Mailer: ELM [version 2.4ME+ PL25 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > On Thu, 14 Nov 1996, Steve wrote: > > > > > To me this looks like you put the same IP address on more than one box! > > Yes it seems but this other is in every case the same 00:00:0c:15:e7:0d > > It seems, it is changing it's ip number 2 times per minute because it is > routing ip packets inside our net. > > I know it is a Cisco routing device + we are using "classless" > internet (variable length masks). > > I am not expert in routing etc. just trying to run some FreeBSD nodes. > > Network gurus admit there is a problem in the network, but why only > FreeBSD nodes seem to suffer from it? Does FreeBSD really suffer from it? I would say, FreeBSD is the only box noticing the problem. You should be proud of it :-) > > Seppo > > > > > On Thu, 14 Nov 1996, Seppo Kallio wrote: > > > > > > > > I am getting these error messages and it seems that the connection to > > > the ip-number (usually a DOS micro with NCSA Telnet) is lost from our > > > FreeBSD 2.1.5 server. > > > > > > 1. I assume the error is in network gateway unit at 00:00:0c:15:e7:0d > > > 2. Can I somehow solve the problem in the FreeBSD box by adding some > > > routing info or something. > > > 3. Can I dissable this overwriting somehow? How? > > > > > > This problem and error message appears only in the FreeBSD nodes, not in > > > Solaris, Linux, HP/UX etc. as far as I know. > > > > > > Nov 14 12:00:01 silmu /kernel: arp info overwritten for 130.234.137.43 by > > > 00:00:0c:15:e7:0d > > > Nov 14 12:00:30 silmu /kernel: arp info overwritten for 130.234.137.43 by > > > 08:00:07:94:74:83 > > > Nov 14 12:01:28 silmu /kernel: arp info overwritten for 130.234.137.46 by > > > 00:00:0c:15:e7:0d > > > Nov 14 12:01:55 silmu /kernel: arp info overwritten for 130.234..141.6 by > > > 00:a0:24:67:9a:e4 > > > Nov 14 12:05:23 silmu /kernel: arp info overwritten for 130.234.138.11 by > > > 00:00:0c:15:e7:0d > > > Nov 14 12:05:23 silmu /kernel: arp info overwritten for 130.234.138.11 by > > > 00:00:c0:d3:6f:a3 > > > > > > One network guru here is explaining the gateway unit is sometimes > > > answering too fast to the caller or something, faster than the FreeBSD > > > node. > > > > > > Seppo Kallio > > > U of Jyvaskyla > > > Finland > > > > --Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de