IP ARP process query
Posted on 2011-10-05
Just a qucik question guys regarding the ARP process for machines on an Ethernet LAN.
When sending an ARP query in order to obtain a MAC address for a PC, does the sending machine use layer 3 addressing in the query packet? or does it just use layer 2 addressing. i assume it just uses layer 2 addressing, with the qurey going out to the ethernet broadcast layer 2 address ffff.ffff.ffff., and the rest of the packet is just the payload, so no layer 3 addressing used.
please can somebody confirm if my assumption above is correct?
thank you in advance.