ACL Need Help

[Alawy89]

Hi everyone first time posting 

I am studying ICND1 

I got the part about ACL but I am facing a situation on the Netacad practice 

it gave me an example of ACL statement with comparison Address and it says deny i am pretty sure it is permit please help me to understand it 

ACL statement 

access-list 18 permit 10.10.10.0 0.0.0.63       Comparison address 10.10.10.50  

                                                                                                                       ^^ <= for this it says deny!

Now the WCM is 0.0.0.63 thats mean it is a 192 SM so the network will range from 0-63

i think it will be permit but the website says it's deny 

can anyone explain to me please 

Thank you 

[chrihussey · Accepted solution]

I'm having some trouble understanding the question, however, your assessment of the subnet, mask and hosts is correct. So if the ACL is permit 10.10.10.0 0.0.0.63 , then 10.10.10.50 would be permitted. Keep in mind that this is a standard ACL and it is only referencing the source IP and not destination.

Hope this helps.

[Alawy89]

Yes the way I looked at it that 10.10.10.50 it is a part of the permit ACL 10.10.10.0 0.0.0.63 

So the fact that .50 denied access it's confusing me i might just apply it on a lab and see the results :)