Tonight a short guide in the world of subnetting. What is subnetting? Well taken from Wikipedia it’s:
A subnetworks or subnet is a logical subdivision of an IP network.
The practice of dividing a network into two or more networks is called subnetting.
So it’s like this we have hosts, clients and network stations. Hosts are usually main computers, servers or mainframes. Clients are usually computers from users. Network stations are switches, routers and other network devices. To make things work we connect this devices in to network that we provide information flow. Every device in ethernet environment has IP. We can configure this IP’s in logical network. We have different topologies, but that’s not relevant now.