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Date:	Thu, 21 Jun 2007 21:13:37 +0200
From:	Patrick McHardy <>
To:	"Eric W. Biederman" <>
Subject: Re: [RFC NET 00/02]: Secondary unicast address support

Eric W. Biederman wrote:
> I'm trying to understand what the point of this patch is.
> In once sense I find the concept of filtering and listening for multiple
> mac addresses very interesting, especially if we could break out different
> streams of traffic by destination mac address into separate network devices.
> This would remove the need to any kind of ethernet tunnel and makes multiple
> network namespaces much more pleasant.
> However this just seems to allow a card to decode multiple mac addresses
> which in some oddball load balancing configurations may actually be
> useful, but it seems fairly limited.
> Do you have a specific use case you envision for this multiple mac
> functionality?

Yes, please see the MACVLAN patch I posted one or two days earlier.
8021q can also make use of it and Dave mentioned some virtualization
devices want this as well.

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