Subnetting A Network

How to subnet a network

The main idea in subnetting is to divide a network into smaller pieces, which we call subnets.

A subnet mask is what we use to assign different amounts of networks and hosts to an IP network. It essentially divides the IP address into two parts: the network and host. This is a trading game- the more hosts you have, the less networks you will have. And yet the more networks you have, the less hosts you will have. Review the class A default subnet masks as shown below.

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