Open DHCP Server vs teemIP

Open DHCP Server is free, open-source software that provides Dynamic Host Configuration Protocol service on Linux and self-hosted, on-premises deployments. It assigns addresses through static hosts and dynamic DHCP ranges, supporting up to 125 ranges on one server. Multiple zones can run on a single server, with BOOTP and relay-agent support. DHCP options may be set globally, for a range, or for an individual client, using string, IP, hexadecimal-string, or byte-array values without defining option types. Ranges can be filtered by MAC ranges, vendor options, and user options. Replicated fail-safe operation supports continuity, while lease status appears on an auto-refreshing HTML page. The project describes low CPU use, small executable size, and very low memory requirements. It is released under the GNU General Public License, with a GPL-2.0 repository license. The project says it suits experts and small or home deployments, including people without DHCP protocol knowledge.

teemIP is an open-source IP address management solution for mapping, planning, and auditing an organization’s address plan. It manages IPv4 and IPv6 with DNS, DHCP, and NAT, and connects addresses to configuration items such as devices, services, sites, DNS records, reservations, and change requests. Teams can inspect subnet details in a hierarchical IP tree and handle address requests through tickets with assignment, tracking, and history. Role-based access control and logging support traceability for changes. A documented REST API and connectors integrate it with tools including iTop, GLPI, Jira, Centreon, Zabbix, Nagios, Lansweeper, AD/LDAP, VMware, Proxmox, Grafana, and Power BI. teemIP can be hosted on-premises or on sovereign cloud providers. The maker positions it as an inventory and network-mapping aid for NIS2 compliance. Community is free; Standard costs €500 a year, billed annually, with an annual commitment. Advanced active DNS/DHCP, high availability, and DNS security needs require scope validation.