the destination MAC is determined by ARP broadcast. The node with the
corresponding IP address will then reply by sending out its MAC address.
Once know, the sending node will keep a cache of the ARP - IP mapping for a
certain period of time.
"Oscar Rau" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> While an IP packet is being packaged to be delivered at the Ethernet frame
stage,
> how is the destination MAC address determined? Is the destination MAC
address going
> to be MAC address of the local gateway or the remote host?
>
> Is the MAC changed by the network devices (routers) along the way until it
has been delivered to
> the destination Ethernet IP address?
>
> If a MAC address is,
>
> 01 23 45 67 89 11
>
> Which half is the vendor specific portion? Where would the multicast bit
and locally
> administered MAC address bit be located?
>
> Thank you in advance.
> --
>
> Oscar Rau
> [EMAIL PROTECTED]
>
> ___________________________________
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