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@biplane.com.au) http://www.biplane.com.au/kauer http://www.biplane.com.au/blog GPG fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A Old fingerprint: AE1D 4868 6420 AD9A A698 5251 1699 7B78 4EEE 6017