Date: Wed, 7 Mar 2007 12:46:50 -0300 From: "Eduardo Meyer" <dudu.meyer@gmail.com> To: stable@freebsd.org Subject: Re: Bridging problems on IP address conflict Message-ID: <d3ea75b30703070746n35e7ccd0t9d4a6e00387db810@mail.gmail.com> In-Reply-To: <20070125194420.GJ822@turion.vk2pj.dyndns.org> References: <d3ea75b30701250601h2cea7ea8k33a99ab1e34d4ab5@mail.gmail.com> <20070125194420.GJ822@turion.vk2pj.dyndns.org>
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On 1/25/07, Peter Jeremy <peterjeremy@optushome.com.au> wrote: > On Thu, 2007-Jan-25 12:01:46 -0200, Eduardo Meyer wrote: > >bridge0: flags=8043<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 > > ether ac:de:48:df:0d:8c > > priority 32768 hellotime 2 fwddelay 15 maxage 20 > > member: fxp0 flags=3<LEARNING,DISCOVER> > > member: em0 flags=3<LEARNING,DISCOVER> > > > >bridge1: flags=8043<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 > > ether ac:de:48:fe:cd:41 > > priority 32768 hellotime 2 fwddelay 15 maxage 20 > > member: xl1 flags=3<LEARNING,DISCOVER> > > member: xl0 flags=3<LEARNING,DISCOVER> > > > >And my system constantly reports: > > > >arp: 00:13:20:1c:33:22 is using my IP address XX.YY.ZZ.KK! > > > >several (thoundsands of) times. In fact this ARP is my own fxp0 > >interface, and this is the only interface that has this IP. What > >should I do? Ass IP on the bridge0 interface instead of the fxp0 > >bridge member? Or anything else? > > You don't say what version of FreeBSD you are running (there were some > bridge(4) fixes between 6.1 and 6.2) or what ifconfig shows for the > bridge members. > > This may be indicative of a loop in your switch network - is there any > way that packets leaving fxp0 can re-appear on em0, xl0 or xl1? > > Based on a previous thread, you probably should put the IP address > on the bridge device, though that should not be related to your problem. > > -- > Peter Jeremy > > 5.5-STABLE system. The topology: - em0 and xl0 crossover (straight from router) to freebsd bridge - fxp0 and xl1 on a common switch (maybe causing a loop?) Added the IP on the bridge device and the loop is gone. 10x -- =========== Eduardo Meyer pessoal: dudu.meyer@gmail.com profissional: ddm.farmaciap@saude.gov.br
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