A Subnet Calculator is a tool used mainly by network and information technology professionals. As its name suggests, this tool’s job is pretty self-explanatory. A subnet calculator is used to calculate subnets in an extensive network. A Subnet Calculator calculates/generates subnets for you based on an IP address range or CIDR notation you provide.
In case you didn’t know, subnetting is simply the process of dividing your network into smaller segments. In the simplest terms, a subnet is a “SubNet”, which can also be described as a partitioned portion of a network. Why does our network need to be subnetted? Once we familiarise ourselves with the term Subnet Calculator, we’ll discuss it.
What is a Subnet Calculator?
An online subnet calculator generates a list of subnets based on a range of IP addresses or CIDR notation. There is the option of choosing the number of subnets, and you can adjust specific ranges to have more or fewer IP addresses.
It’s important to subnet your network properly, whether you’re expanding or starting from scratch, so you won’t have to scramble to get new IP addresses in the future.
Why Subnet Your Network?
It is a good idea to subnet your network for a variety of reasons. Due to the possibility of not using all IPv4 addresses, the subnetting practice began primarily because it seemed overkill to assign millions of IPv4 addresses to an organisation that might never utilise those addresses. In addition to being wasted, the unused IP addresses also served no purpose. It was for this reason that subnetting began, but there are also numerous other reasons for its development.
Organisation: It is easy to organise your network with partitioned private networks. Each department can have its own subnet. As a result, a certain number of addresses will be assigned to a particular department.
In this way, the network can be organised and managed more effectively. IP addresses are a great way for IT professionals to determine which department is experiencing issues. As well as dividing the network by building, you can also divide it by floor. In this instance, subnets can be set up for buildings, and each building can be assigned its own range of addresses.In this instance, subnets can be set up for buildings, and each building can be assigned its own range of addresses.
By doing so, you will be able to determine which building is having problems. By subnetting, you will be able to better maintain and organise your network. The departments, buildings, floors, etc., will be separated into clean, separate sections.
Extending IP Addresses: This is commonly referred to as supernetting, but it has a close connection to subnetting. It is also possible to expand your network’s IP address range using subnetting. By doing this, you can expand the range of IP addresses in a specific region. As an example, you can always add another subnet mask if you have used all the IP addresses in a subnet.
You can also change the subnet size by changing the subnet mask if there are lots of free IP addresses in a subnet that aren’t being used. By doing so, the unused IP addresses will be released, and you will be able to use them in another subnet.
Security: Subnetting is also beneficial in terms of security. A clean network separation and organised allocation of IP addresses will allow you to control who has access to what.
For instance, you can control departmental access by creating different subnets. It is possible to prevent other departments from accessing finance or sales information. Many other reasons exist for subnetting a network, but I think you get the idea.
What does the Subnet Calculator do?
As we have discussed earlier, the Subnet Calculator is used for calculating subnets based on a set of IP addresses (or CIDR Notations).
It is very easy to divide your network into subnets with the help of this calculator. This method doesn’t require calculations, division, or conversion from decimal to binary. Anyone who regularly deals with subnets will find it useful.
Subnet lists can be customised in a variety of ways. In addition to the size of the subnets, you can specify how many subnets can be created in your network. Also, each subnet can have its own size (since they do not need to be the same size).
You can simplify a lot of things by using the Subnet Calculator. This tool is self-explanatory and can even be used by someone who isn’t so tech-savvy. It is possible to adjust the range and size of subnets in much more detail with the calculator. You just need to spend some time playing around with the options. As soon as you master it, you’ll save a lot of time and energy.