From owner-freebsd-net@FreeBSD.ORG Wed May 19 16:03:36 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9E29716A4CE for ; Wed, 19 May 2004 16:03:36 -0700 (PDT) Received: from europa.lunarpages.com (europa.lunarpages.com [64.235.234.140]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8925943D2F for ; Wed, 19 May 2004 16:03:36 -0700 (PDT) (envelope-from russ@500records.com) Received: from cpanel by europa.lunarpages.com with local (Exim 4.34) id 1BQaA4-0007xp-6b; Wed, 19 May 2004 16:07:44 -0700 Received: from 64.1.168.26 ([64.1.168.26]) by 500records.com (IMP) with HTTP for ; Wed, 19 May 2004 16:07:44 -0700 Message-ID: <1085008064.40abe8c024a10@500records.com> Date: Wed, 19 May 2004 16:07:44 -0700 From: Russell Adams To: Mike Hunter References: <1084994246.40abb2c6ef47a@500records.com> <20040519195959.GA3046@ack.Berkeley.EDU> In-Reply-To: <20040519195959.GA3046@ack.Berkeley.EDU> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit User-Agent: Internet Messaging Program (IMP) 3.2.2 X-Originating-IP: 64.1.168.26 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - europa.lunarpages.com X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [32001 502] / [47 12] X-AntiAbuse: Sender Address Domain - 500records.com X-Source: X-Source-Args: X-Source-Dir: cc: freebsd-net@freebsd.org Subject: Re: arp: is using my IP address again. X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 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, 19 May 2004 23:03:36 -0000 Quoting Mike Hunter : > On May 19, "Russell Adams" wrote: > > > I have seen this question posted twice to the list each without any > response. > > Does anybody out there know if this is possible, a Yes or No, will do if > you > > can't offer anything else. If it is possible then how do we get rid of the > > Arp/IP conflict problem. > > > > This is what I want to do: > > > > A transparent bridge with no IPs (2 NICs) > > A 3rd NIC to access the box via SSH for monitoring and configuration. > > > > this is what I have done. > > > > xl0 and xl1 set up as a transparent bridge, no ips > > rl0 set up as 192.168.30.254 on the LAN > > Bridge is inbetween 192.168.30.1 (ROUTER to Internet) and 5500 Cisco > Switch. > > > > I log in via SSH to configure the bridge via rl0, so far so good. I plug in > the > > bridge between the router and the switch via xl0 and xl1, the bridge begins > to > > pass packets perfectly. BUT now rl0 is not reachable via anything, no even > a > > ping. Login into the console for investigation I find this message: > > > > FreeBSD Kernel: Arp: 00:00:00:00:00 is using my IP address 192.168.30.254 > > FreeBSD Kernel: Arp: 11:11:11:11:11 is using my IP address 192.168.30.254 > > > > The 00 and 11 MACs address representing the MAC for the 2 NICs that are > part of > > the bridge. 192.168.30.254 was the previously working admin interface > accepting > > conections via SSH. > > > > Below is are 2 unanswered posts that are asking the same thing but both > are > > regarding 4.8, I am using 5.2.1 > > > > > > http://lists.freebsd.org/mailman/htdig/freebsd-net/2003-June/000586.html > > > http://lists.freebsd.org/mailman/htdig/freebsd-net/2003-December/002109.html > > I never had any trouble passing traffic, but I did get spurious arp error > messages. In my /etc/rc.conf, I specifically disabled arp on the bridge > interfaces, and the messages went away. I think I saw that suggestion on > an archived mailing list post somewhere. > > Good luck, > > Mike > > I don't really mind the error messages, I just want it to work... the bridge works great, the problem is the 3rd admin NIC stops working as soon as the bridge interfeaces are up and running. Do you think that turning off arp will allow my 3rd NIC to start working again? I will give it a try and see what effect it has on the situation, thanks for you comments! Russ