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Date:      Wed, 12 Dec 2001 19:26:18 +0100
From:      "Jose M. Alcaide" <jose@we.lc.ehu.es>
To:        Scott Mitchell <scott@uk.freebsd.org>
Cc:        mobile@FreeBSD.ORG
Subject:   Re: Xircom CE3-10/100 (xe(4)) cannot receive multicast frames
Message-ID:  <20011212192618.B516@v-ger.we.lc.ehu.es>
In-Reply-To: <000401c166b3$dbe56e70$1680010a@msapama.apama.com>; from scott@uk.freebsd.org on Tue, Nov 06, 2001 at 11:11:59AM -0000
References:  <20011105185451.A392@v-ger.we.lc.ehu.es> <20011106003619.A1861@localhost> <20011106102251.A343@v-ger.we.lc.ehu.es> <000401c166b3$dbe56e70$1680010a@msapama.apama.com>

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On Tue, Nov 06, 2001 at 11:11:59AM -0000, Scott Mitchell wrote:
> > > Something is seriously broken in the xe(4) driver.  I don't think
> multicast
> > > receive has ever worked properly -- if you grovel around in the if_xe.c
> > > code you'll find some stuff to set up the multicast address filters that
> is
> > > never actually used :-(  It's been on my list of things to fix for ages,
> > > but no-one complained until now.
> >
> > Uh, oh! So I am the first one trying to use IPv6 with a xe. IPv6 _needs_
> > full multicast support to work.
> 
> Oops :-)  Fixing this should just be a matter of setting up the multicast
> hash filter properly (actually, setting it up at all) and tickling a few
> mode bits.  Is is OK if I send you any patches I come up with to test, since
> you seem to have a suitable environment for doing so?  These would be
> against the -STABLE sources initially.
> 
> > > I'll look into it as soon as I can, which might not be for a few weeks
> > > (sorry).  In the meantime, could you try putting the card in promiscuous
> > > mode and see if it receives the offending frames then?
> >
> > Yes. With "tcpdump ether multicast and not ether broadcast" I see the
> > multicast frames. However, using "tcpdump -p ..." no multicast frames are
> > received.
> 
> I'll try to look at this over the weekend (but no promises).


Hi... did you get any progress with this issue? Just wondering ;-)

  Regards,
  JMA
-- 
****** Jose M. Alcaide  //  jose@we.lc.ehu.es  //  jmas@FreeBSD.org ******
** "Beware of Programmers who carry screwdrivers" --  Leonard Brandwein **

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