10. Wildcard Masks ACLs 

This is one of the best explanations I've seen. I'm studying CCNA at school and ACLs seem OK at first until I frustrated and can't recall how to get the IP range from an ACL. The majority of explanations are "just subtract 255" but there is so much more to it. Well done Mr. System Engineer you earned an upvote from me!

So easy to understand in such a short time, thank you!

So easy to understand in such a short time, thank you يباشا

Easy Explanation to understand wildcard masks. Thank you

Thank you professor.

This is way easier to understand when you understand how to calculate subnet masks.

you are simply the Best thank you

Help! This is a cisco excersice. This is the ACL statement below. Deny all hosts from the 10.10.10.0/24 network. What is the wildcard mask? The "correct" answer is 0.0.0.255. But another question is: This is the ACL statement below. Permit all hosts from the 192.168.5.0/27 network. What is the wildcard mask? The answer is 0.0.0.31. If we use the technique in the video is makes sense. 255.255.255.255 - 255.255.255.0 = 0.0.0.255 255.255.255.255 - 255.255.255.224 = 0.0.0.31 Should the wildcard mask be different depending on if we want deny or permit?

Thank you!

LEGEND

Great job, thanks!

Great job...

The more videos I watch the more I get it

big brain vid i lern a lot pls ty

simplest way of explaining them, just got another question ,what if we got 0.0.0.01000000 as wild card mask ,are we gonna match the only one bit normally???

Great!

Thanks so much.

THANK YOU!!!!!!!!!!

Neither subnet masks nor wildcard masks can have a value of 17 in an octet?

perfect explaination thats why i copy your profile picture ! hahah ha ha ha

Yoqmadi yaxshi emas ekan video