Orion IPAM provides the Subnet Allocation Wizard to help you efficiently organize your managed IP address space into subnets that are sized appropriately for the extent and traffic of your network. With its real-time subnet calculator, the Orion IPAM Subnet Allocation Wizard allows you to quickly determine the most efficient way to subdivide any supernet, as shown in the following procedure.
To create subnets from supernets using the Subnet Allocation Wizard:
Orion IPAM instantly confirms the validity of provided the Supernet Address and CIDR prefix length combinations. For more information about CIDR, see Networking Concepts and Terminology.
Typically, in subnets defined to contain more than 2 IP addresses, the first and last addresses are reserved as the network address, for identifying the subnet to the rest of the network, and the broadcast address, for communicating with all addresses within the subnet, respectively. As a result, the number of available IP addresses is always two fewer than the number actually contained within a given subnet.
By default, Orion IPAM adds the supernet you used to define your subnets to make it easier to organize your network. Although it is optional, SolarWinds recommends that you check this option and use the supernet unless you are only adding a few subnets.
Adding subnets either to an existing supernet or to a newly defined supernet can make it easier to organize your network. Although it is optional, SolarWinds recommends that you check this option and keep the supernet unless you are only adding a few subnets.