Mapping multicast group IP address to MAC address

Awesome posts:

http://www.fragmentationneeded.net/2010/10/mapping-multicast-groups-to-mac.html
http://tldp.org/HOWTO/Multicast-HOWTO-2.html
http://www.infocellar.com/networks/ethernet/frame.htm

Use multicast IP to MAC calculator: http://www.aqwnet.com/index.php/tools/ip-mac-calculator