Unique IP Addresses system wide

It is possible to control whether IP Addresses can be generated multiple times (same address in multiple subnets). This action is per IP Subnet, allowing the selection of specific ranges than can / cannot allow duplicate addresses.

The flag is visible in the IP Subnet pool view, and editable on creation, and in the IP Subnet detail view.

By default the flag is active on creation, except where other addresses exist in the same range and are in a subnet whose flag is inactive (addresses not unique). In this case the flag is inactive and not modifiable.