Date: Tue, 2 Jul 2002 19:29:21 -0700 From: Luigi Rizzo <rizzo@icir.org> To: Kenneth Ingham <ingham@i-pi.com> Cc: net@FreeBSD.ORG Subject: Re: bridge loop without physical loop Message-ID: <20020702192921.B12152@iguana.icir.org> In-Reply-To: <1025662074.50003.14.camel@Clarke.i-pi.com>; from ingham@i-pi.com on Tue, Jul 02, 2002 at 08:07:54PM -0600 References: <1025662074.50003.14.camel@Clarke.i-pi.com>
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bridging is incompatible with cards which hear their own transmissions (~IFF_SIMPLEX). I am not sure if the "ep" is one of this kind. if you do an 'ifconfig' and you do not see the 'SIMPLEX' flag set for the card, then you can suspect that. I should probably put code in the bridging code to make sure that these cards are never enabled to do bridging. cheers luigi On Tue, Jul 02, 2002 at 08:07:54PM -0600, Kenneth Ingham wrote: > I'm having a problem where the bridging code seems to be doing weird > things. To eliminate the possibility of a real loop, the second > ethernet interface is connected to a hub with no machines on it. > However, I am still seeing messages like: > > Jun 30 16:24:48 zprime /kernel: -- loop (0) 00.60.97.88.38.68 to ed1 > from ep0 (active) > > Even weirder are these: > > Jun 30 15:31:46 zprime /kernel: arp: 00:60:97:8f:d5:92 is using my IP > address 66.120.218.4! > Jun 30 15:31:46 zprime /kernel: xx ouch, bdg_forward for local pkt > > Of special note is that 00:60:97:8f:d5:92 is the ethernet interface of > the second ethernet card (the one hooked to the empty hub). > > The two ethernet cards are: > ep0: <3Com Etherlink III 3C589> at port 0x240-0x24f irq 9 slot 1 on > pccard1 > ed1 at port 0x300-0x31f irq 9 flags 0x80000 slot 0 on pccard0 > (this is a Linksys 10/100 card) > > Any suggestions about what is going on here? > > -- > Kenneth Ingham > ingham@i-pi.com > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-net" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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