The IPv6 Subnet Calculator performs network calculations on the given network address block, routing prefix and determines subnet address, host range and notation for the subnet.
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There comes a time when a network becomes too large to manage and performance numbers hit the low as a result of too much traffic. One of the most effective technique to solve this network congestion problem is to break the TCP/IP network into smaller, more manageable pieces. The practice of dividing the network is called subnetting.
Every subnet has an address to represent it and these subnets are interconnected via router. The router needs network address and the network prefix to find out whether the incoming IP packet has to be routed to any of its subnetwork. Performing network calculations can be hard at times when you have to consider different parameters as to how many subnets will I have for a given network address block with a particular routing prefix.
This subnet calculator is a handy tool for finding the number of possible subnets for any given network address block. You can choose routing prefix with maximum number of subnets that suits your network and get the host address range and IPv6 CIDR notation. IP calculations can usually be performed mentally but it's better to have an option to double check the calculations before configuring them in the router.