3036441-Subnetting-Cheat-Sheet

3036441-Subnetting-Cheat-Sheet - Subnetting Cheat Sheet...

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Subnetting Cheat Sheet Binary Conversion/Subnets/Subnet Mask Chart Bits 1 1 1 1 1 1 1 1 Decimal Value 128 64 32 16 8 4 2 1 Decimal Mask NA 192 224 240 248 252 254 255 Binary Mask NA 11000000 11100000 11110000 11111000 11111100 11111110 11111111 # of Subnets 0 2 6 14 30 62 126 254 Subnet Breakout NA .64- .32- .16- .8- .4- .2- .1- High/ Low Order High Order Bit Low Order Bit * How to reproduce the chart above Decimal value starts at 1 for low order bit and doubles until 128 (the high order bit) Decimal mask is a sum of the decimal values of the bits you are using (starting from the high order bit) # of subnets is calculated by assigning a value of 0 to the mask for the high order bit, and then doubling and adding two as you go to the right Subnet breakout is the range of IP addresses you can assign: increment by the number you start with, start with the number that is the decimal value of the low order bit of your subnet mask. Tip:
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This note was uploaded on 09/13/2009 for the course EE 6345 taught by Professor Cantrell during the Spring '09 term at University of Texas at Dallas, Richardson.

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3036441-Subnetting-Cheat-Sheet - Subnetting Cheat Sheet...

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