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Date:	Thu, 10 Jul 2008 19:20:07 -0700
From:	Max Krasnyansky <maxk@...lcomm.com>
To:	Christian Borntraeger <borntraeger@...ibm.com>
CC:	virtualization@...ts.linux-foundation.org,
	Brian Braunstein <linuxkernel@...style.com>,
	Shaun Jackman <sjackman@...il.com>, netdev@...r.kernel.org,
	Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: Multicast and receive filtering in TUN/TAP



Christian Borntraeger wrote:
> Am Donnerstag, 10. Juli 2008 schrieb Max Krasnyansky:
>>> Thing is, we are heading towards virtio. 
>> Even for Windows ?
> 
> Its possible:
> http://marc.info/?l=kvm&m=121075389300722&w=2
Nice.
btw Is there something similar for the display driver ? vmware has one.

>>> Unfortunately, virtio_net currently  does not offer a method to register 
> multicast addresses.
>> I haven't looked at the virtio stuff much, I was assuming that the host side
>> of it is still the TUN driver. Is it not ?
> 
> Yes, the host side is still tun/tap. The problem is that qemu doesnt know 
> which multicast addresses are used inside the guest.
Ah, now I see what you meant by virtio_net does not do multicast. I guess it
should trivial to add. Rusty will clarify it I guess.

Max

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