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1. #Ethernet adapter mac address in device manager for mac
2. #Ethernet adapter mac address in device manager mac

#Ethernet adapter mac address in device manager mac

In order to learn R3 MAC address, PC1 announces or broadcast through Address Resolution Protocol (ARP). How would PC1 figure out R3’s Unicast MAC Address for the first time? Note: Unicast Address is the mostly used Media Access Control Address among network devices. It is a 12-digit Hexadecimal with most of the time carries the following value, this is an official (IANA) Multicast address. To a specific group – Frames sent using Multicast Ethernet address will be copied and forwarded to a subset of devices on the LAN that volunteers to receive such frames which sent to a specific multicast address – for specific group only and NOT to everyone. Meaning to everyone – Frames sent using this address should be delivered, received, and processed by all devices on the Ethernet LAN or VLAN.īroadcast conclude 12-digit Hexadecimal address with value of inserted into the destination filed of the Frame. So the IEEE defines categories of group addresses for Ethernet communications: A frame sent to a group of addresses might be delivered to a small set of devices on the LAN, or even to all devices (everyone) on the LAN. Group addresses identify more than one LAN interface card.

In addition to unicast addresses, Ethernet also uses group addresses. Every MAC address represent a single NIC in the world hence, it is called Unicast (Unique) Global Address.

#Ethernet adapter mac address in device manager for mac

Is another name for MAC address or an Ethernet Address.

No matter what it’s called, it is a 12-character hexadecimal Address. When vendors create network devices such Ethernet NICs, wireless devices, routers, and switches, they burn-in these addresses into their devices.Ī MAC address has few names, including P hysical Address, Ethernet Address, Burned-in Address, and Hardware Address. 2001.1111.1111Īn Ethernet MAC address is a hardware address, therefore, it MUST uniquely identifies every Ethernet device in the world. Most computers list this address as 12-digit Hexadecimal numbers. The moment you hear MAC address, think Ethernet is being used regardless of the Media (cable type) is being used between the devices such Copper, Fiber cables, or even over Wireless radio wave.Īll Ethernet addresses (Including Unicast, Broadcast, and Multicast) are 6-byte-long ( 48-bit-Long) or 12-character Hexadecimal Address. So, if Network Layer package Packets using IP Addressing system which is a logical Addressing system, then Ethernet frames or load those packets using a physical Addressing system that meant on the hardware level.Įach network device in this world get its own unique 48bit MAC Address which will be used only by Ethernet Technology. Understanding Ethernet MAC Addresses will help you grasp how Ethernet transfer frames filled with packets across network devices using MAC Addresses format. Media Access Control meant to to be a Physical Hardware Address System used by Ethernet.

Understanding Data Link Layer Encapsulation.Understanding Packet Flow Across the Network Part2.Understanding Packet Flow Across the Network Part1.