Subnetting a Class C network. So you understand why you want to subnet, but how do you do it? Your goal is to look at an IP address and subnet mask of a host and then determine three things quickly: ...

Subnet Mask Perhaps the most recognizable aspect of subnetting is the subnet mask. Like IP addresses, a subnet mask contains four bytes (32 bits) and is often written using the same dotted-decimal ...

What does subnet mask actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

A subnet mask separates the network and host portions of an IP address. CLASSFUL ADDRESSING Before 1993, subnet masks were not used. The address class determined the size of the network and the subnet ...

The new subnet mask is 11111111.11111111.11111111.10000000. Borrowing Table 9 from an earlier article and revising it to show the borrowing, here’s the new fourth octet: The first bit in the fourth ...

I have some questions about subnets, I don't understand what they do or how they work. My home network uses 255.255.255.0 as the subnet mask, and the network at my school uses 255.255.0.0. Why are ...

One of the best parts of this job is chit-chatting with readers. Today, we bring you a little insight into the job of security/identity management engineer from a reader that performs this role ...

Subnetting a Class B network can involve some serious thought! As a network administrator, you'll have to know it and know it well. Todd Lammle walks you through clear instructions and simple ...