IPv4 subnetting and VLSM
To further understand how subnetting helps network professionals, let’s take a deeper dive into getting the hands-on skills on breaking down an IP address block to create subnets for an organization. In this exercise, let’s imagine you’re the network administrator or network engineer for a fictional organization that has a total of four offices that are interconnected using a Wide Area Network (WAN) solution, as shown in the following network topology:
Figure 5.12 – Network topology
Your objective is to create an IPv4 addressing scheme for the entire organization, ensuring each office location has an IP subnet and that there’s the least wastage of IP addresses per subnet. The following sub-sections will guide you through the process of subnetting.
Step 1 – determining the appropriate IPv4 block
To get started with subnetting as a network professional, you will need to determine the total...
