If you can describe what you want (vs. what you don't want), you could submit a feature request here:
If you are interested in using agents: Deploy agents to nodes - SolarWinds Worldwide, LLC. Help and Support
This is the documented way to control what is happening. Note the option in Step 1 'Dynamic IP Address'.Set the Dynaminc IP Address option in NPM
Updated December 21, 2016
When necessary, you can configure NPM (versions 11.5.x and later) to communicate with devices that are using dynamic IP addresses.
NPM 11.5.x and later
- When adding a new node, check the option on the Add Node screen to use Dynamic IP Address (DHCP or BOOTP).
- If you're modifying an existing node, click Manage Nodes.
- Select the desired node.
- Click Edit Node, and then check the Dynamic IP Address option.
- Submit your changes.