SUBNETTING

As a network engineering student, it is very important to understand the subnetting and how it works.

Subnetting is the process of creating more host addresses or more networks, is when divide a large network into smaller, easier to manage subnets, subnetting helps to make network more secure and better at using IP addresses, also helps you better understand routing and keep it secure by separating parts of the network it is important skill for me  as network engineering  because it helps to organise and improve networks.

 in small example for the IPv4 192.168.150.0/24

first i added (2) hosts to the amount needed to account for the network address for example for 53 hosts i need 55 addresses, also the hosts need to be in order always largest first.

second the subnet size is the number in the cheat sheet that fit your host number, for example hosts 55 into subnet size 64.

thirdly the network address is the total of the previous subnet sizes together.

fourth the first host is the network address plus 1.

fifth broadcast address is next network address -1.

sixth the last host is the broadcast address -1.

seventh the subnet mask we need to count back through the cheat sheet putting 1 under each number until we hit the subnet size e.g. 32 subnet size will be 11100000, add the number together which have a 1 underneath.
eighth the prefix is adding the amount of 1 in the cheat sheet to the host already been given with the IP which /24 e.g. 11110000 four 1's so will be 28.

the skills i building through this, IP address management , networking fundamental, binary skills, planning and design.