Networking Basics - MAC Addresses

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In this video, you'll learn about MAC addresses. Specifically, you'll see the pieces and parts that make up the structure of a MAC address, in addition to a couple of examples of MAC addresses in action.
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Kevin Wallace, CCIEx2 #7945 Emeritus (Collaboration and R&S)
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Networking Basics - MAC Addresses
• Networking Basics - MA...
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[@lovelysongs199]

Thanq u kevin sir most useful video

[@James_Knott]

To be correct, you only need to know the MAC address of the gateway but use it's IP address & ARP to determine it. The gateway's IP address is not included in the packets leaving the network, even though they contain it's MAC address.

[@bravealikhan]

Thank you Kevin, your why of delivering IT knowledge is unique and awesome. I am a big fan of you and your teaching style.

[@vane230787]

Wonderfuuuuul explanations!!!! Thank you, Mr Wallace

[@SomindraKannangara]

Always love your explanations Kevin.

[@dencam]

Thanks Kelvin.
Awesome content.

[@hatemnegm2688]

Great Video as usual

[@alexiscalderons]

Awesome Kevin, thanks.

[@natbroughton6167]

Kevin, Awesome, as always!!!

[@akshaykumarshanbhogue9596]

Ok, got it. MAC address has 2 parts, OUI- org. Unique identifier (24 bit/ 3 byte), Nic specific address (24 bits/3 byte)

[@user-gx1fw6fh1s]

It`s fantastic!!!!!!!!!

[@imranmd1920]

is there any way to change MAC address of any device?

[@James_Knott]

Yep. You can change the MAC on many devices.

[@omyadav5402]

❤️

[@ahmedmohamednabil4789]

Why we dont only use ip address and throw mac addresses away ?

[@James_Knott]

Think of the protocol stack. Ethernet, at layer 2, uses the MAC address for devices on the local network and IP is layer 3, which is used for routing between networks. There might also be protocols other that IPv4. IPv6 is becoming popular but IPX was common years ago. Also, some protocols don't have anything comparable to an IP address and rely entirely on the MAC. The old DOS, Windows & OS/2 NetBIOS protocol is one example.