Mapping IP multicast address to MAC address

From: Brian Van Benschoten (vader@xxxxxxxxxxxx)
Date: Sun Nov 28 1999 - 13:56:05 GMT-3


   
I'm having trouble figuring out exactly how to map the IP multicast address
to the multicast MAC address. I know that the lower 23 bits of the IP
address map to the MAC address. I think I'm doing something wrong.

224.0.1.35 01 00 5e 00 01 23 ( I think this is correct)
224.0.1.22 01 00 5e 00 11 66 ( I don't see how you get this one)

anyone have a few tips or shortcuts on how to do the conversion. How about
a few examples that you know are correct. Then I can try to figure them
out.

how would you convert these ?

224.0.5.5
224.1.1.1
229.1.1.1

Thanks in advance !!



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