Re: Understanding IP class range.

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Author: parabellum7@yahoo.com
Date:  
To: plug-discuss
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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