Understanding the importance of subnetting
Imagine you’re a network professional for an organization that has six branch offices within various cities of your country. Each branch office has no more than 50 end devices that need an IPv4 address. Your job is to assign an appropriate IPv4 addressing scheme within the entire organization to support all the remote offices and devices. At first, it will be very easy to assign a unique private IPv4 Class C address block to each of the six branches to meet the required number of IPv4 addresses per remote office, as shown:
- Branch office 1:
192.168.0.0/24
- Branch office 2:
192.168.1.0/24
- Branch office 3:
192.168.2.0/24
- Branch office 4:
192.168.3.0/24
- Branch office 5:
192.168.4.0/24
- Branch office 6:
192.168.5.0/24
While this IPv4 addressing scheme will work, it’s not the most efficient scheme as there will be a lot of wastage of IPv4 addresses within each of the six branch offices. Let’s...