The Easy Subnetting Chart we created also produces one other pertinent number in addition to the number of subnets. You guessed it, the number of hosts per subnet. All we have to do is subtract two from the answer to the previous formula. Now the formula is 2n-2=X where n is the number of host bits borrowed to make subnets.

Subnetting Cheat Sheet. Now that we have all the basics down, we are going to start the actual lesson on subnetting. The first thing we are going to do is create a Subnet Cheat Sheet. This will help you solve subnetting questions very quickly and without errors. I highly recommend you follow along and create your own subnet cheat sheet. IP Subnet Chart - Ring of Saturn Class B Space is denoted in numbers of Class C's; Ripe Subnet # of Class C's /23: 255.255.254.0: 2 /22: 255.255.252.0: 4 /21: 255.255.248.0: 8 /20: 255.255.240.0: 16 IP Subnetting – Zero to Guru Subnetting Cheat Chart: Unit 1: Subnetting Cheat Chart: Unit 2: Example: Module 6: Class C Subnetting: Unit 1 /25 Example: Unit 2 /26 Example: Unit 3 /27 Example: Unit 4 /28 Example: Unit 5 /29 Example: Unit 6 /30 Example: Module 7: Class B Subnetting: Unit 1 /17 Example: Unit 2 /18 Example: Unit 3 /19 Example: Unit 4 /20 Example: Unit 5 /21

This chart makes subnetting incredibly easier by skipping the tedious binary conversions involved, also preventing any inadvertent errors. During the binary conversions, if you make even one mistake in one of the 32 bits of the IP address, the entire IP address becomes invalid. This chart absolutely eliminates the need for using any binary numbers.

In this Subnetting cheat sheet page, you can view all you need about subnetting! You can view CIDR values that is the equivalent valueof your subnet mask, address numbers that can be used with this subnet mask and wildcard masks. You can learn Classful IP Addresses, IPv4 address classes, Private IPv4 blocks. Please write this chart out on a sheet of paper over and over until you can do it by heart. To see how to use the chart please visit the easy way to subnet page for an example. There are over 40 examples using Class A, B and C addresses in Subnetting Secrets along with some network design examples.

Subnetting Cheat Sheet. Now that we have all the basics down, we are going to start the actual lesson on subnetting. The first thing we are going to do is create a Subnet Cheat Sheet. This will help you solve subnetting questions very quickly and without errors. I highly recommend you follow along and create your own subnet cheat sheet.

The Easy Subnetting Chart we created also produces one other pertinent number in addition to the number of subnets. You guessed it, the number of hosts per subnet. All we have to do is subtract two from the answer to the previous formula. Now the formula is 2n-2=X where n is the number of host bits borrowed to make subnets. subnetting practice - Subnetting Questions Thank you for visiting SubnettingPractice.com, the most extensive subnetting practice site on the Internet. We provide text based and image based subnetting questions which simulate the real world. If these questions seem too difficult, start out with our basic subnetting questions. You may also want to look at out IPv6 questions IP subnetting made easy - TechRepublic Mar 03, 2009