Understanding IP class range.

[Keith Smith]

Thank you!!  Looks to be chalked full of info!!



On 2015-08-31 18:13, David Demland wrote:
> I wrote this paper to help with my students when I am teaching 
> Subnetting I
> hope that you might find this a different way to look at networking.
> 
> David
> 
> -----Original Message-----
> From: plug-discuss-bounces at lists.phxlinux.org
> [mailto:plug-discuss-bounces at lists.phxlinux.org] On Behalf Of
> parabellum7 at yahoo.com
> Sent: Monday, August 31, 2015 3:25 PM
> To: plug-discuss at lists.phxlinux.org
> Subject: Re: Understanding IP class range.
> 
> 
>  > Very nice Kenn!!
> 
> Thanks! Good to revisit this stuff from time to time, rattle the old
> brain-box and make sure there's still something in there!  :)
> 
> 
>> Ok so if I had 192.168.1.0/25 the range would be 192.168.1.0 -
>> 192.168.1.127
> 
> Yes.
> 
> 
> 
>> /26 would be 192.168.1.0 - 192.168.1.192 ?  or is it 192.168.1.0 -
> 192.168.1.64 ?
> 
> /26 would yield 192.168.1.0 - 192.168.1.63
> 
> 
> 
>> Not sure how to make a net mask out of 192.168.1.0/25 -  would it be
> 255.255.255.128?
> 
> Yes
> 
> 
> 
> The calculator Daniel provided is good:
> 
> http://www.subnet-calculator.com/cidr.php
> 
> 
> The one kitepilot provided is also nice because it illustrates the full
> binary.
> 
> http://jodies.de/ipcalc
> 
> 
> They're neet to play with and better than others I've seen. I've 
> bookmarked
> both, thanks for sharing these resources.
> 
> 
> --Kenn
> 
> 
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-- 
Keith Smith