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    CNJNLUV's Avatar
    CNJNLUV Posts: 7, Reputation: 1
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    #1

    Nov 28, 2007, 03:48 PM
    Subnetting and Subnet Ranges
    I would like someone to explain to me in simplest terms how to subnet and find subnet ranges. Thanks.:)
    EOS's Avatar
    EOS Posts: 18, Reputation: 2
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    #2

    Nov 29, 2007, 07:43 AM
    Unfortunately, there is nothing simple about subnetting. In my opinion

    Cisco IP subnetting 101: Five things you should know
    That link should get you started on the basics though.
    Zayne S Halsall's Avatar
    Zayne S Halsall Posts: 71, Reputation: 5
    Junior Member
    		  
    #3

    Dec 4, 2007, 09:03 PM
    As EOS said, subnetting is not simple. And the link he provided was a very good one - introductory and basic, with good links to get more information.

    However, in my many years in networking, I have found the easiest way to always be able to quickly manage subnetting (aside from learning a few maths tricks - and with me that's generally not that quick ;) ) is to use a subnet calculator of some sort.

    While there are applications available, since I never know where I am going to be and what OS I'm going to be using, I use the following website (I am in no way affiliated with this site, FYI):

    Online IP Subnet Calculator

    And for CIDR subnetting (more usual, nowadays)

    Online IP CIDR / VLSM Supernet Calculator


    I have yet to find a subnetting need that this web app hasn't solved. Hope this helps you too.
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