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#1 viennaa

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Posted 22 August 2014 - 13:39

Hey,

 

Anyone initially find it hard understanding subnets and know of any good resources?




#2 +BudMan

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Posted 22 August 2014 - 14:11

doing the math can be confusing to some, depends on your math background, etc.

Are you having issues just understanding what a subnet is, or doing the math to know what addresses are in say a /22 (255.255.252.0) or 255.255.255.248 (/29), etc..

Here is a good cheatsheet I have posted on my wall for easy reference http://packetlife.ne..._Subnetting.pdf

He has lots of cheatsheets there as well.

#3 +RedReddington

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Posted 22 August 2014 - 14:15

Yeah I initially did find it hard!! Just comes with experience. 

 

http://www.subnettingquestions.com/

 

Is one site I gave to our apprentices....



#4 Original Poster

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Posted 22 August 2014 - 14:35

may I suggest learning basic binary first? this will help you alot when further understanding subnets.

 

hope this helps

 

https://www.youtube....ctZ643qgUscKyLQ

 

 

the reason for this is subnetting is done through binary I found it easy to understand once binary was learnt



#5 +BudMan

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Posted 22 August 2014 - 14:50

I found it easy to understand once binary was learnt

Agree, your math background can make a big difference.. Which is why I ask - is the math that is causing you pain or just basic understanding what a subnet actually is?

Maybe I was just a nerd/geek but binary is something you learn in like junior high is it not.. At least it was when I was in school ;) Guess it depends on what math track your on, etc. ;)

Alternate numbering systems are something you learn early on is it not, base 10(decimal), base 2(binary), base 16 (hex) base 8 (octal). I know this was gone over way before highshcool level. And that was 30 years ago - I would think no a days they teach this in like 3 or 4th grade ;) I will ask a friend of mine who is a math teacher when this stuff is taught in school these days.

But yeah if you don't get binary and even octal doing the math can be confusing.

#6 OP viennaa

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Posted 22 August 2014 - 22:27

doing the math to know what addresses are in say a /22 (255.255.252.0) or 255.255.255.248 (/29), etc..

 

Exactly this, will take a look at the chart for reference!