Question 1, 2, & 4:
Explanation of address resolution regarding MAC addresses.
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/introint.htm#xtocid193923

Question 3:
Router packet handling
http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/routing.htm#xtocid249344

Karen E Young
Network Engineer
ELF Technologies, Inc
[EMAIL PROTECTED]



                                                                                       
                             
                    Oscar Rau                                                          
                             
                    <osca003@attg        To:     Cisco GroupStudy 
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                    Sent by:             Subject:     MAC address                      
                             
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                    08/08/00                                                           
                             
                    03:46 PM                                                           
                             
                    Please                                                             
                             
                    respond to                                                         
                             
                    Oscar Rau                                                          
                             
                                                                                       
                             
                                                                                       
                             



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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