Your message dated Wed, 7 Jan 2015 10:04:38 +0100
with message-id <[email protected]>
and subject line Re: Bug#774754: set multicast bit in MAC address?
has caused the Debian Bug report #774754,
regarding set multicast bit in MAC address?
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774754: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=774754
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Package: ifenslave-2.6
Version: 1.1.0-20
Looking at https://en.wikipedia.org/wiki/MAC_address I wonder
if ifenslave shouldn't set the multicast bit for the MAC
address of the bonding interface?
Regards
Harri
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--- Begin Message ---
On Wed, Jan 07, 2015 at 08:26:35AM +0100, Harald Dunkel wrote:
> Looking at https://en.wikipedia.org/wiki/MAC_address I wonder
> if ifenslave shouldn't set the multicast bit for the MAC
> address of the bonding interface?
Definitely not. The multicast bit should only be set on the destination
address, never on a source address. When the multicast bit is set on a
destination address, it instructs every switch along the way, not just
the local bridge interface, to broadcast the packet to all ports (or if
it's a smart switch that can do IGMP snooping, only those ports that
there are hosts on that are interested in multicast traffic with that
address).
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Met vriendelijke groet / with kind regards,
Guus Sliepen <[email protected]>
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