question archive Consider a network where the hardware address length is 6 bytes, and the protocol address length is 4 bytes
Consider a network where the hardware address length is 6 bytes, and the protocol address length is 4 bytes
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Consider a network where the hardware address length is 6 bytes, and the protocol address length is 4 bytes.
A node in this network received an ARP packet where all bits from 145th to 192nd are 0s.
Is that ARP packet a request or a reply?
Explain your answer.
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The position of Destination MAC address in ARP Packet format starts from 145th bit and ends at 192nd bit. In a ARP request packet, Destination MAC address is all 0. Hence this is a ARP Request packet.
Destination MAC octet starts from 144/8 = 18th octet
Detination MAC octet ends before at 192/8 = 24th octet
Octet 18 to 23 represent Target MAC address
MAC address = 6 octet = 48 bit
Please see the attached file for the complete solution
