WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

RE: [Xen-devel] using a different MAC in netfront than theonegivenby net

To: "David Edmondson" <dme@xxxxxxx>
Subject: RE: [Xen-devel] using a different MAC in netfront than theonegivenby netback
From: "James Harper" <james.harper@xxxxxxxxxxxxxxxx>
Date: Mon, 18 Aug 2008 23:15:06 +1000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Mon, 18 Aug 2008 06:15:29 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20080818130304.GC1166@xxxxxxxxxxxxxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <AEC6C66638C05B468B556EA548C1A77D01490320@trantor> <20080818075037.GL13115@xxxxxxxxxxxxxxxxxxxxxxxxx> <AEC6C66638C05B468B556EA548C1A77D0149032C@trantor> <20080818081603.GN13115@xxxxxxxxxxxxxxxxxxxxxxxxx> <AEC6C66638C05B468B556EA548C1A77D01490338@trantor> <20080818130304.GC1166@xxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AckBMsSByRx3Bp8sSHGeQPpRbzPr1AAAaS+g
Thread-topic: [Xen-devel] using a different MAC in netfront than theonegivenby netback
> On Mon, Aug 18, 2008 at 10:46:39PM +1000, James Harper wrote:
> > > Does the driver in question (your GPLPV driver in this case) get
> > > notified when Windows wants to use an extra unicast address?
Perhaps
> > > it just pushes the device into promiscuous mode?
> >
> > What actually happens is that Windows sets a registry entry when NLB
is
> > enabled and my driver uses that to set the MAC address to something
> > other than what Dom0 says it should be. Windows then reads the MAC
> > address to see if I noticed the registry entry, and if I didn't it
> > complains and refuses to enable NLB on that interface saying that it
> > doesn't support a change of MAC address.
> 
> Then there is only one MAC address used, rather than it being an
> additional address?

Correct.

James

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel