For devices that do not support an agent, which configuration method should you use?

For devices that do not support an agent, Agent-Less Configuration is the appropriate method. This approach relies on standard network protocols such as SNMP, SSH, or NetConf to interact with and configure devices. It's used when a device's operating system or hardware limitations prevent the installation of a dedicated software agent. Agent-based configuration, conversely, requires an agent to be installed on the device, which isn't feasible in this scenario. Proxy-agent configuration involves an intermediary, but the fundamental issue of the endpoint not supporting an agent remains. Therefore, agent-less methods are essential for managing devices with limited capabilities.