IPv6 support by wifi systems

Tue Feb 12 21:06:35 UTC 2013

On Tue, 2013-02-12 at 15:40 -0500, Brandon Ross wrote:
> On Wed, 13 Feb 2013, Karl Auer wrote:
> 
> > For example, multicast is used by ND, the IPv6 equivalent of ARP. MLD
> Oh really?  Exactly when during the ND process does a device send an MLD 
> message that can be snooped?

ND just uses multicast, so MLD messages are not really part of ND
itself. But during the setup of any interface with an IPv6 address, MLD
traffic will move and can be snooped on. The switch then knows what
listeners are where, so when for example an NS is sent to the solicited
node multicast address of a target during ND, the switch can send it
only to those hosts it knows are listeners on that group.

Regards, K.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Karl Auer (kauer at biplane.com.au)
http://www.biplane.com.au/kauer
http://www.biplane.com.au/blog

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