Gestioip - GestióIP is an automated, Web based IP address management (IPAM) software.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Microsoft IP Address Management Server - IP Address Management (IPAM) in Windows Server® 2012 is an integrated suite of tools to enable...
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
HaCi - HaCi is an IP address / network administration tool with IPv6 support.
Prometheus - An open-source systems monitoring and alerting toolkit.