From owner-freebsd-net  Sun Jun 16 15: 0:42 2002
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Date: Mon, 17 Jun 2002 08:01:11 +1000 (EST)
From: <steve@pipenetworks.com>
To: Mihail Balikov <misho@interbgc.com>
Cc: <freebsd-net@FreeBSD.ORG>
Subject: Re: Netgraph bridging vlans
In-Reply-To: <004701c2153d$28068720$eee209d9@interbgc.com>
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Mihail,


> I have not succeeded to setup vlan bridging even with 4.6. Looking in source
> code :
> if_vlan.c :
> [...]
>  case SIOCSIFFLAGS:
>   /*
>    * We don't support promiscuous mode
>    * right now because it would require help from the
>    * underlying drivers, which hasn't been implemented.
>    */
>   if (ifr->ifr_flags & (IFF_PROMISC)) {
>    ifp->if_flags &= ~(IFF_PROMISC);
>    error = EINVAL;
>   }
>   break;
> [...]
>
> In  if_ethersubr.c ether_demux() it's easy to see that vlan packets with
> unicast mac addresses different of parent mac would be dropped.
>
> for freebsd 4.4 I have wrote small patch to allow promisc mode on vlan
> interfaces and bridgiing of vlan interfaces. If you are interested I will
> renew it for 4.6.

I am very interested :-) Any chance it would work on 4.5 ?



SB


>
> regards,
> misho
>
>
>
>
> ----- Original Message -----
> From: "Luigi Rizzo" <rizzo@icir.org>
> To: <steve@pipenetworks.com>
> Cc: <freebsd-net@FreeBSD.ORG>
> Sent: Sunday, June 16, 2002 4:08 PM
> Subject: Re: Netgraph bridging vlans
>
>
> > On Sun, Jun 16, 2002 at 07:14:14PM +1000, steve@pipenetworks.com wrote:
> > >
> > > Hello,
> > >
> > > I have been working with Netgrpah in bridging vlans using the vtun
> > > package. I recently tried to extend this to bridging vlans but found
> that
> >
> > native (not netgraph) bridging in 4.6 works with vlans too.
> >
> > cheers
> > luigi
> >
> > > it did not work. I think the reason was that the scriptI had been using
> > > (/usr/share/examples/netgraph/ether.bridge)to happily do bridging
> between
> > > two real interfaces seemed not to place the vlan interfaces into PROMISC
> > > mode.
> > >
> > > When I start the ether.bridge I do get a message saying promiscuos mode
> > > enabled on the vlan1 interface but subsequent "ifconfig" commands do not
> > > show the flag set on the interface.
> > >
> > > Has anybody come across this before ?
> > >
> > > I am running i386 hardware and 4.5-RELEASE if that helps.
> > >
> > > Thanks.
> > >
> > > --
> > > Stephen Baxter
> > > Director - PIPE Networks
> > > phone : 07 3220 1100/ 0417 818 695
> > > fax   : 07 3220 1800
> > >
> > >
> > >
> > > 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
> >
>
>
> To Unsubscribe: send mail to majordomo@FreeBSD.org
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>

-- 
Stephen Baxter
Director - PIPE Networks
phone : 07 3220 1100/ 0417 818 695
fax   : 07 3220 1800



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