Total Network Inventory: Professional PC audit and network inventory management software - fits best for a for companies of all sizes. Free for 60 days.
OpUtils is a IP address and Switch port management software that is geared towards helping engineers efficiently monitor, diagnose and troubleshoot IT resources. OpUtils complements existing management tools by providing trouble shooting and real-time monitoring capabilities. It helps network engineers manage their Switches and IP Address Space with ease. With a comprehensive set of 20+ tools, this switch port management tool helps to perform network monitoring tasks like detecting a rogue device intrusion, keep a check on bandwidth usage, monitoring availability of critical devices, backing up Cisco configuration files and more.
Network Inventory Advisor - Network Inventory Advisor audits all network software and hardware simply and efficiently
SolarWinds IPAM - Find out about getting started with IP Address Manager, including the latest release notes and documentation as well as training and helpful articles on how to best run SolarWinds IP Address Manager (IPAM).
Lansweeper - Lansweeper discovers Windows, Linux and Mac machines in your network.
phpIPAM - phpipam is an open-source web IP address management application (IPAM).
Nmap - Nmap Free Security Scanner, Port Scanner, & Network Exploration Tool. Download open source software for Linux, Windows, UNIX, FreeBSD, etc.
BlueCat DDI - Unify your DDI (DNS, DHCP and IPAM) solutions to make DDI data an engine for innovation and growth.