MAC Address
§ This address does not change
§ Similar to the name of a person
§ Known as physical address because physically assigned to the host
NIC
IP Address
§ Similar to the address of a person
§ Based on where the host is actually located
§ Known as a logical address because assigned logically
§ Assigned to each host by a network administrator
Both the physical MAC and logical IP addresses are required for a
computer to communicate just like both the name and address of a
person are required to send a letter.