A .OSI model - the network hierarchy
What two .mac address is how to see?
What 1.MAC address?
MAC address is also called the physical address, hardware address, burn (A flash memory chip, may generally be rewritable by a program) in EPROM card (Network lnterface Card) when produced by network equipment manufacturers. IP address and MAC address in the computer are in binary representation, the IP address is 32 bits, while the MAC address is 48 bits.
MAC address length is 48 bits (6 bytes), usually expressed as 12 hexadecimal numbers, such as: 00-16-EA-AE-3C-40 is a MAC address, wherein the first six-digit hexadecimal on behalf of network hardware manufacturer's 00-16-EA number, which is assigned by the IEEE (Institute of electrical and Electronics engineers), followed by 6 hexadecimal number AE-3C-40 on behalf of a network of products manufactured by the manufacturer (such as NIC) serial number. They do not change their MAC address, MAC address is unique in the world. Figuratively speaking, MAC address just as identity card number on the ID card, unique.
In the OSI model, the third layer, the network layer is responsible for the IP address, the second layer is the data link layer is responsible for the MAC address. MAC address is used to uniquely identify a network card in the network device if one or a plurality of cards, each card will be required and a unique MAC address.
2. how to view mac address?
three.