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Home > Archive > CCNP > November 2001 > ip to mac address
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| analulu 2001-11-26, 2:37 am |
| hello
i miss somethink there can some explain me simply.
the way it fonction.
thank you | |
| dmaftei 2001-11-26, 9:08 am |
| That's ARP's job. When a host A knows the IP address a.b.c.d of another host B, and needs to find out B's MAC address, A sends an ARP request saying "whoever has a.b.c.d, tell me your MAC address". Only B, who has a.b.c.d, will answer the request, sending its MAC to A.
Does this answer your question? | |
| The Reamer 2001-11-26, 3:41 pm |
| If you are referring to the IP to MAC address in multicast addressing, then you are concerned with the lower 23 bits of the ip address. There have been several posts that related to this. This link was in one of the previous posts.
http://www.catspace.com/multi.htm
IMHO, I actually thought the Osborne book did a better job of explaining this than the Ciscopress book I read first.
Anyway, HTH.
Reamer |
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