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All Forums  CCNP and CCDP  Mapping IP multicast to Ethernet  New Topic  Reply to Topic  Printer Friendly   Author  Topic    WCJr New Member USA 3 Posts Posted - Jan 27 2002 :  07:20:34 AM     Is the time spent studying and practicing the steps to convert a layer 3 IP multicast address to a layer 2 MAC multicast address ie: converting a IP addresses last 23 bits into binary then converting that into hex for the last 3 octets of the multicast MAC address really on the test. Do I have to actually perform this calculation with an multicast IP address to answer a question on the test or do I just have to know how the procedure is done? I would like to know the reason why I would have to manually computate this, if the router is going to convert this thru CGMP to the switch? Can anyone give me a real life example were this will come in handy. P.S. Bonus question "what the hell does variably subnetted mean?"  New Topic  Reply to Topic  Printer Friendly Jump To: Select Forum Cisco Certification Forums       CCNA       CCNP and CCDP       CCDA       CCIE CompTia       A+ 220-201 and 220-202       Network+ Microsoft Certification Forums       70-210 Windows 2000 Professional       70-215 Windows 2000 Server       70-216 Windows 2000 Network Administration       70-217 Windows 2000 Directory Services Admin       MCSA 70-218 NetworkDesigner.net       Comments, Praises, and suggestions about this site       Errors found  -------------------- Home Active Topics Frequently Asked Questions Member Information Search Page Networkdesigner.net © 1999 - 2002 Networkdesigner.net Snitz Forums 2000

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