LibreNMS vs ManageEngine OpUtils

LibreNMS is a free, self-hosted network monitoring system with device support. It can discover networks using CDP, FDP, LLDP, OSPF, BGP, SNMP, and ARP. Customizable alerts can be sent through email, IRC, Slack, and other transports, while the API can manage installations, create graphs, and retrieve data. Distributed polling supports horizontal scaling. Documented functions include VLAN, ARP and FDB collection, traffic billing, syslog, service monitoring, and customizable dashboards. Integrations include Oxidized, RANCID, NfSen, Smokeping, Graylog, and Nagios plugins. Authentication choices include MySQL, LDAP, Active Directory, and HTTP, with two-factor authentication also documented. Installation guides cover CentOS and Ubuntu, and Docker images are available. Native iPhone and Android apps provide core functionality, and an online demo is available before installation. Community help is offered through Discord and a forum; commercial SLA-backed support and consultancy are available through partners.

ManageEngine OpUtils is a network management toolset for monitoring, diagnosing, and troubleshooting IP resources and network devices. It manages IP address space, maps devices to switch ports, and combines DNS, DHCP, and IP address management, including Microsoft DNS and DHCP. More than 30 network utilities cover diagnostics, SNMP, Cisco, address monitoring, and connectivity. Security controls can detect rogue devices, alert on IP conflicts and ARP spoofing, and apply DHCP MAC-based filtering. Role-based access control and two-factor authentication are supported.

OpUtils integrates with Microsoft DHCP and DNS, Cisco Meraki controllers, and ManageEngine products including OpManager and NetFlow Analyzer; APIs can connect it with third-party IT management and service desk software. The downloadable product is offered for 64-bit Windows and Linux and is accessible through a browser. Mobile apps for iOS and Android monitor network addresses and ports. The free edition costs nothing and supports one Class C subnet and one switch. The Professional plan is priced on request, and Management is priced on request. A 30-day trial is available.