Since there are already IP Adresses saved in the CMDB (Hardware Objects), the IP Plan is a visualization for them. Most of the work for the IP Plan is done by the Agents on the Clients, which are fetching the required IP Information.
To start with the IP Plan, you have to enter your Subnets. Press Create Subnet in the Module IP Plan - Subnet.
After you have entered the Subnet, you will see a overview of used IP Adresses in the subnet.
Here you can enter DHCP Scopes. This information will be used in the IP Plan only for visualization. You can also exclude ranges.
Here you can document your Firewall.
The information from the Firewall will be used in the Module IP Scan and in the IP Plan.
Here you can document your (public) DNS infrastructure. e.g. external Servers. This information is required for Cerfificate checks in case you are using the Module IP Scan. Also the DNS Information will be used for the IP Plan.
When creating subnets you have the possibility to add Configuration variables which can be referenced in some Job actions.
To use the configuration variables, the following syntax must be used: $[Configuration name]