SUBNET MASK CALCULATOR FREEThis goes both ways, if you have a lot of free IP addresses in a subnet that aren’t getting used then you can change the size of the subnet by changing the subnet mask. For example, if you have used all the IP addresses in a subnet, you can always extend the range by adding another subnet mask. This gives you a good option to extend the range of IP addresses in a certain location. You can basically add more IP addresses to your network via subnetting as well. There will be a clean separate sections between departments or building or floors etc.Įxtending IP Addresses: Although this is generally referred to as supernetting, it is related to subnetting. The point is, subnetting will help you maintain the network and organize it in a better way. You can also divide the network for floors as well. This way you can easily determine which building is having problems. For example, you can subnet for buildings and allocate a range of addresses for one building. You can also divide network for buildings or floors as well. As an IT professional, you can easily determine what department is having problems just by looking at the IP Addresses. This, as you can already see, helps in the organization and management of the network as well. So, a certain range of addresses will be allocated to a certain department and so on. You can divide your network into subnets for each department. Organization: With partitioned private networks, you can actually organize your network pretty easily. This was the main reason subnetting started but there are a lot of other reasons as well. The unused IP addresses were getting wasted and served no purpose at all. The subnetting practice started mainly because allocating millions of IPv4 addresses to an organization that might never use all of those addresses was an overkill. There are plenty of reasons for subnetting your network. Subnet is a “Sub Net” which can also be thought of as a partitioned portion of a network.īut, why do we need to subnet our network? Let’s first have a look at a few reasons why anyone would want to subnet their network. If you don’t know, subnetting is basically the task of dividing your network into smaller pieces. Basically, you give the Subnet Calculator a range of IP addresses or CIDR notations and it calculates/generates a list of subnets for you. It is a tool for calculating the subnets. Its name makes the task of this tool pretty self-explanatory. Subnet Calculator is a tool used mostly by Network/IT professionals.
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