From: David Madore <david.madore@ens.fr>
To: Linux Kernel Mailing-List <linux-kernel@vger.kernel.org>,
Linux NetDev Mailing-List <netdev@vger.kernel.org>,
atl1-devel@lists.sourceforge.net
Subject: atl1e Ethernet driver not seeing packets sent to 33:33:00:00:00:01 multicast
Date: Tue, 11 Nov 2008 14:31:08 +0100 [thread overview]
Message-ID: <20081111133108.GA7124@clipper.ens.fr> (raw)
Hi,
This is on Ubuntu 8.10 "Intrepid Ibex" using its stock kernel
(2.6.27-7.16), with an Eee PC 901 whose Ethernet adapter is (according
to lspci):
04:00.0 Ethernet controller: Attansic Technology Corp. L1 Gigabit Ethernet Adapter (rev b0)
using driver atl1e of said kernel.
_Unless_ the network device is put in promiscuous mode (e.g., by
running tcpdump), it does not see packets sent to Ethernet multicast
address 33:33:00:00:00:01. E.g., IPv6 packets to ff02::1
(ip6-allnodes) are not seen.
Practical consequence: IPv6 is broken, because router advertisements
are not received.
("ip maddr show" does give "link 33:33:00:00:00:01" among the
subscribed multicast addresses, so it's not a config problem.)
Is this a known problem? Is there a patch fixing it?
Until then, a workaround is to put the device in promiscuous mode.
Happy hacking,
--
David A. Madore
(david.madore@ens.fr,
http://www.madore.org/~david/ )
next reply other threads:[~2008-11-11 13:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-11 13:31 David Madore [this message]
2008-11-11 14:06 ` atl1e Ethernet driver not seeing packets sent to 33:33:00:00:00:01 multicast J. K. Cliburn
2008-11-11 15:59 ` David Madore
2008-11-11 16:08 ` J. K. Cliburn
2008-11-11 22:00 ` David Madore
2008-11-12 0:13 ` J. K. Cliburn
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