Understanding an IP Address: Cisco Router Training 101

[Kadalius]

Doing IP addresses in class this week. This is by far the most helpful video that simply breaks the concept down. Thank you.

[annetteparker-haynes]

What 5 people didnt like this video? Mr. Crawley's instruction was excellent. Thank you sir! Extremely helpful to this chick.

[saravanankerberos]

Mr.Don Crawley is a legend. i would like to declare that i am one of his devotee.Thank you very much for all of your
videos.

[soundtraining]

You're welcome. I'm glad you liked it.

[joeypage]

Thanks, I am busy with cca training and realy did not understand this ip to binary.. Thanks to your simple kolom system I totally understand it. Now I can focus on the rest of with less panic.. Great help

[MSKChess]

After listening to many videos eventually i found this and the matter becomes almost clear. Will need to view it again to fully assimilate the concepts. Just like to thank you for taking the time - regards MSK

[soundtraining]

The class of the address is not determined by the subnet mask. Per RFC 791, the class is determined by the highest order bits of the address. If the highest order bit in the address is 0, creating a first octet value of 0-127, the address is a class A. If the two highest order bits are 10, creating a first octet value of 128-191, the address is a class B. If the three highest order bits are 110, creating a first octet value of 192-223, it's a class C. For more info, see tutorial on my website.

[soundtraining]

To continue, so you can take any address (A, B, or C) and apply any length of mask to it. The concept of classful addressing is mostly deprecated and now replaced by classless addresses. See RFC 4632 for more information about classless addresses as used in CIDR (Classless Inter-domain Routing). The RFCs are Requests for Comments which are technical documents detailing various protocols and other technologies used in networks. Search on the term RFC for more info.

[oCAVALRYo]

Thank you very much. My teacher tried to learn me, but i can see he did it in a very complicated way. I found this video right after my teacher stopped talking. And first now i understand the basics of binary and IP. Thaaank you so much, I thought i was lost ;)

[jonasmller]

wow best tutorial about IP Adresses, i have found on the internet so far! :D

[bctesla]

I was CCNA in 2014 . I love this refresher course . IPV6 will be implemented globally by 2000, 2010, 2020 2050 ?
How long can NAT last ?

[ElvyJ]

Excellent video...great translation. Thank you soundtraining!!!

[thejmacify]

I've found this video VERY helpful with further explaining the Bits and Bytes of Networking course offered through Coursera by Google.  I'm struggling with a graded assignment and this more in-depth exhibition of IPv4 addressing and subneting has been really helpful.  Thanks for making this available.

[cintifitz]

this is a splendid tutorial and answers questions my internal novice didn't yet know how to articulate, or where in the vast archives of information to begin learning.  my circumstance has gone from woefully ponderous to exciting: experience.  excellent, excellent, excellent.  oh, and than you.
pay no attention to that geoff crystal dork.

[MsPrettierthanpink]

very comprehensive and informative! Great Video, thank you very much.

[clmc]

hm. My WiFi just was broken and it keeps braking, when ever it’s braking, there are 4 ip’s instead of 2... always at night... I found the ips using my iPhone WiFi thing that tells me the ip I don’t understand any of those video or how to read an IP address, some sketchy things have been happening round my area recently, this is VERY sketchy to me.

[donnellblakey]

thanks. There is so much to learn in the IT world... I feel like i will never make it :(

[yosephtamrat]

Thank you so much, it is a lot clearer now for me after watching this video. 🙏🙏🙏

[xenodata]

I get a lot of attacks on my website from international places. The list of ip addresses assigned to various countries I've looked at is too large to ban or sort through. So if I just ban the first two octets of an ip address, would that do a pretty good job of banning bad actors without having to resort to banning individual addresses? What about banning three octets?

[martenzzee]

thanks Mr Crawley.... your simply the Best!!!