how multicast mapping works

April 12, 2009 at 22:30:16
Specs: Windows XP
i have a big fact m running lack of information...when an ip multicast address is mapped to a hardware address, then how that h/w will detect the grp packet at data link layer?because the h/w has it's own unique h/w address which will obviosuly start from 00-,bacause if not then it will become a multicast address which start from hw dis thing is done??? hope my question is clear

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July 6, 2009 at 19:36:53
By enabling IGMP snoofing,whenever switch is going to receive multicast address,it checks its multicast database & forward the frame to particular group.

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