the "+" sign and then select the SNMP Trap entry.
If you have any questions about the SNMP settings of your building or network monitoring solution,
please contact your administrator or the software manufacturer.
Notification via SNMP
The Ethernet‑based measurement and monitoring devices from the manufacturer Didactum can send notifications and alarms in the form of SNMP traps (Simple Network Management Protocol).
In the system tree (System Tree) of your monitoring system, simply click the “+” symbol.
To receive notifications and alarms as SNMP traps, the following parameters must be defined in the SNMP trap settings:
| Name: | Label / name of the element in the monitoring system | |||
| SNMP Server: | Name or IP address of the SNMP server (e.g. 192.168.0.89) | |||
| SNMP Port: | SNMP port (commonly 162). | |||
| Version: | Version of the SNMP protocol used (v1, v2c or v3) | |||
| Community: | Name of the SNMP community (e.g. public) | |||
| USM user: | User name for SNMP protocol v3 | |||
| Security level: | Security level for protocol v3, Mobile version. "noauth" – no authentication, only user name required "auth" – with authentication; "Auth algorithm" and "Auth password" must be entered "priv" – authentication and data encryption; "Auth algorithm", "Auth password", "Private algorithm" and "Private password" must be entered | |||
| Auth algorithm: | Authorization algorithm for protocol v3 with security level "private". | |||
| Auth password: | Password for the authorization for protocol v3 with security level "private". |
Integration with OpenNMS:
Didactum monitoring systems support (almost) all Network Management Systems (NMS). The required Didactum SNMP MIB can be downloaded directly from the Didactum IT monitoring unit's web interface under "Preferences" >> "SNMP" >> "Download MIB file".
Using the OpenNMS Enterprise Management System (LINK: www.opennms.org/), we will show you how Didactum monitoring systems can be integrated into SNMP monitoring tools and IP management software.
Step I: Integrating the Didactum monitoring system into OpenNMS:
The Didactum Monitoring Appliance must be assigned a static IP address. This ensures that the OpenNMS server can reach the Didactum network monitoring system.
To collect the readings from the IP sensors connected to the Didactum Monitoring Appliance using OpenNMS, the necessary settings must be configured under "Preferences" => "SNMP".
Step II: Configuring the SNMP Community by IP under OpenNMS:
- Add the desired Didactum environmental sensors to OpenNMS via Add Node.
- Enter the management IP address and the node label, for example “didactum‑env01”.
- Define the Read community for communication with the SNMP agents.
Step III: Importing the Didactum.xml file into OpenNMS:
- Download the Didactum XML file didactum.xml.
- Copy didactum.xml to the directory $OPENNMS_HOME/etc/datacollection.
- Edit the $OPENNMS_HOME/etc/datacollection-config.xml file and add the following line.
Step IV: RRDtool graphic definition of the Didactum sensors under OpenNMS:
- Download the RRDtool graph definition for Didactum sensor graphs here (file: didactum-graph.properties).
- Please copy the didactum-graph.properties file to the directory $OPENNMS_HOME/etc/snmp-graph.properties.d