We found several utilities to help calculate IP subnets, subnet ranges, and CIDR addressing. IP Subnet Calculator (free) is a good, basic subnet calculator that shows available subnets based on IP ...

To understand how subnetting works, you first must have a good basic understanding of IP addresses. An IP address is set of binary octets broken into quads. That definition may not have made any sense ...

In this article we cover one of what I have found to be the most common stumbling blocks for individuals attempting to pass the CCNA. This comes from experience in helping several individuals through ...

What is the purpose of the IP subnet mask and how does it work? Scott, Charlotte, NCHello Scott. The answer to this question has two parts. The first involves the interpretation of the IP address. IP ...

I have a networking situation where some tools can or can't communicate between two devices on the same LAN but differing subnet masks (it's an error, will be corrected). The question is why do some ...

The key to being a good network administrator is understanding how your network is set up and the IP address scheme. IP Network Calculator is a good assistant. IP Network Calculator is a free Android ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. One of the most prevalent problems with IP networks occurs when IP subnet masks are incorrect.

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 examples ...