Subnetting help

[DavisCorbin95]

Hey guys, I am level 1 networker in training, any advice or tricks I can borrow from you guys in subnetting?

Lets use example 193.15.7.0 with 10 subnetworks. I would just need overall advice on how to get:

Bits borrowed?

Bits Remaining?

and Writing the subnets bits in 1's and host as 0's.

[Joseph W. Doherty]

"trick" - find a subnetting calculator.

If you're looking for how to do it manually, such a question is better posted on Cisco's learning forums.

[Reza Sharifi]

Hi,

Here is a link to learn all the basics.

http://sysnetnotes.blogspot.in/2013/07/subnetting-made-easy.html

HTH

[DavisCorbin95]

im checking out the site now, its really convenient.

[Julio E. Moisa · Accepted solution]

Hi

You could begin learning the Formulas used to subnetting, there are many ways to subnetting, each pleople has its own method, I use the following for example:

Formulas:

Available bits:

32 - CIDR =  # available bits to subnetting

n = represents bits that will be working with the available bits through 1 or 0. 

To get X amount of subnets

2^n >= # of subnets required

To get X amount of hosts

[(2^n) - 2) >= # of hosts required

To get the block size:

256 - (Alterared Octets) = Size. 

Hope it is useful

:-)