#How to find mac model identifier serial number
#How to find mac model identifier serial

In the Multicast MAC address, the LSB of the first octet is set to 1.įor instance, take the case of a reserved MAC address 01-00-5E. The IEEE has reserved the Multicast MAC address for OUI as 01-00-5E. Multicast MAC addresses can be assigned or represent a group of devices, especially Ethernet NICs in Layer 2 (Data Link Layer). The source machine using the MAC address is always Unicast. Here the first octet in bits is 0000 0000, where LSB (the first bit from right) is zero. The Least Significant bit (LSB) of the first octet of the MAC address is set to zero (0).įor instance, let the OUI of the MAC address is 00-40-C9.

The Unicast MAC address represents a unique NIC (Network Interface Card) in a network. You can follow the guide to understand the differences between bits and byte better.

#How to find mac model identifier serial

This number is specific to a device or sometimes called a serial number.Īlso, one octet is equivalent to one byte ( 1 Octet = 1 Byte = 8-bits). This identifies an organization or vendor or manufacturer.Īnd the next three octets are known as the Network Interface Controller specific.

The first three octets equal to 24-bits are known as the Organizationally Unique Identifier (OUI). It is represented in hexadecimal format, where 4-bits (half a byte) is assigned a hex digit. The MAC address is divided into 6 octets, whereas an octet consists of 8-bits. The famous well-known manufacturer ID is:

#How to find mac model identifier serial number

And the remaining 24-bits 9d6816 is the serial number of the adapter. The first 24-bits that is 001422 is the manufacturer ID. The next 24-bits of the MAC address is the serial number assigned by the manufacturer to the network adapter.įor instance, let support the MAC address of the network adapter is 00:14:22:9d:68:16. The manufacturer ID is regulated by internet standard IEEE 802. The first 24-bits of the MAC address is the ID number of the NIC manufacturer. The MAC address has the following format: How is the MAC address represented?Ī MAC address consists of a 12-digit hexadecimal number, which is 48-bit in length. The example of Ethernet NIC MAC address is 00:0a:95:9d:68:16. Moreover, the Address Resolution Protocol (ARP), which is a communication protocol of the Network Layer, is used to discover a MAC address associated with an IP address. So, a MAC address is sometimes also called a link-layer address. MAC addresses participate in networking and are used by the Media Access Control Protocol, the sub-layer of the Data Link Layer of the OSI reference model. It stores the address most often in read-only memory, and other mechanisms depending on the manufacturer.īecause of this reason, the MAC address is sometimes called a burned-in address (BIA), physical address, or networking hardware address. MAC address is often assigned to your Network Interface Card (NIC) by the device manufacturer, and it is hard-coded on your NIC. The network interface card (NIC), added to your computer, has a MAC address.Ī MAC (Media Access Control) address acts as a unique identifier assigned to your Network Interface Card (NIC) for communication in a network. The NIC work is to turn data into an electrical signal that can be transmitted over the network. NIC’s other name is a network adapter, LAN adapter, Ethernet card, or physical network interface. A hardware address identifies the hardware connected in a network and is typically known as Network Interface Card or NIC.Ī Network Interface Card is a hardware component, typically a circuit, board, or chip, which is the necessary equipment needed for your computer to connect to a network.