ARP: Mapping between IP and Ethernet | Networking tutorial (9 of 13)

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Why the address resolution protocol (ARP) is needed, and how it works

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I haven't heard a person make so much sense in my life

deepakmecheri

I did MSc computer science, incl networking, almost 40 years ago. If I recall correctly, the networking course was at least 10 weeks. This playlist explains it much better, in just an hour or two...! Great job!

tolex

Thank you, thank you, thank you. I've been struggling with understanding how routing works from the LAN level to the WAN level and back again. This is the first time anyone has broken it down in the whole scheme. It actually makes sense to me now!

MrSuperawesome

Note that when he says (at 7:53), "... and for IP that's always going to be 4 bytes", please bear in mind that this is for IPv4. For IPv6 we don't use ARP (see NDP) and the length of an IPv6 address is 16 bytes.

By the way, fantastic series Ben! I have been doing a lot of reading on networks, but this is the most concise and efficient set of explanations I have come across. Many thanks!

rafan

You actually revived my brain.

My brain opposed a huge resistance to any source of information regarding IT.

Your channel is amazing.

fastacelzapacescu

Ben, First of all THANK YOU. you have simplified learning this stuff for me. it is your simplicity that has made the light bulb go off for me. the fact that you explain the step by step really makes a difference in understanding. Thank you, Thank you, Thank you.

jesusguzman

I love your explanation .. My professor Was electric engineer ex- military officer. Who develop Colombia space shadow computer .. 1985 University of Denver .
When He started first words was ? ."Look at your neighbors soon You want see them again " Truth from class of 30 only 15 people got diploma ..
I wish I have professor who could explain Digital as good as You Ben ..

ak