Question

Draw a small diagram of a MAC address. Note the OUI. Note how many bits in each section.

Answer 1

Media Access Control (MAC) Address :

• Mac Addresses are remarkable 48-bits equipment number of a PC, which is inserted into network card (known as Network Interface Card) during the hour of assembling.
• Mac Address is otherwise called Physical Address of an organization gadget. In IEEE 802 standard, Data Link Layer is separated into two sublayers

1. Logical Link Control(LLC) Sublayer
2. Media Access Control(MAC) Sublayer

Mac address is utilized by Media Access Control (MAC) sublayer of Data-Link Layer. Macintosh Address is word wide special, since a large number of organization gadgets exists and we have to extraordinarily distinguish each.

A SMALL DIAGRAM OF MAC ADDRESS:

The original IEEE 802 MAC address comes from the original Xerox Network Systems Ethernet addressing scheme. This 48-bit address space contains potentially 2⁴⁸ (over 281 trillion) possible MAC addresses.

The OUI is typically right at the front of the address. For example, consider a network adapter with the MAC address "00-14-22-01-23-45." The OUI for the manufacture of this router is the first three octets—"00-14-22." Here are the OUI for other some well-known manufacturers

Format of MAC Address :

• Mac Address is a 12-digit hexadecimal number (6-Byte twofold number), which is generally spoken to by Colon-Hexadecimal documentation. Initial 6-digits (state 00:40:96) of MAC Address distinguishes the producer, called as OUI (Organizational Unique Identifier).
• IEEE Registration Authority Committee relegate these MAC prefixes to its enlisted sellers.

Here are some OUI of well known manufacturers :

CC:46:D6 - Cisco 
3C:5A:B4 - Google, Inc.
3C:D9:2B - Hewlett Packard
00:9A:CD - HUAWEI TECHNOLOGIES CO.,LTD

The furthest right six digits speaks to Network Interface Controller, which is relegated by producer.

As talked about above, MAC address is spoken to by Colon-Hexadecimal documentation. In any case, this is only a transformation, not compulsory. Mac address can be spoken to utilizing any of the accompanying organizations :-

How to find MAC address –

Command for UNIX/Linux -  ifconfig -a
                          ip link list 
                          ip address show

Command forWindows OS -   ipconfig /all 

MacOS -                   TCP/IP Control Panel

TYPES OF MAC ADDRESS:

1.unicast

2.multicast

3.braoadcast