A set of connected networks that are reachable (routable) from one another form an address space. In IPAM all IP blocks/subnets/ranges ...

A set of connected networks that are reachable (routable) from one another form an address space. In IPAM all IP blocks/subnets/ranges and IP address that belong to such a set of networks are grouped together within an Address Space container. In order to support network virtualization IPAM provides two types of address spaces: Provider and Customer. By default all IPAM entities are deemed to reside in a built-in address space called "Default". Any conventional (non-virtualized) network entity like a subnet or IP address range will lie in Default address space.