This article explains how to configure and use the SNMP agent on GP-Probe devices (DIN L1 and TGE2) to integrate them into standard Network Management Systems (NMS). Both probes share the same SNMP functionality; the difference is in the available OIDs, which are described in the corresponding MIB files provided for download at the end of this article. 


1. What is SNMP Monitoring?


Simple Network Management Protocol (SNMP) is a standard protocol for monitoring and managing network devices. With SNMP enabled, GP-Probe devices can:

  • Provide real-time telemetry (number of satellites, SNR, anomaly level, PPS offset, etc.).
  • Accept configuration changes (thresholds, calibration commands).
  • Send traps (automatic alerts) to NMS when interference, anomalies, or hardware errors occur.


This allows seamless integration into platforms like Zabbix, Nagios, PRTG, SolarWinds, or any custom monitoring tool.

2. Enabling the SNMP Agent


Log into the Web Configuration Panel of your GP-Probe.

  • Default URL: http://192.168.0.120
  • Default credentials: admin/admin


Navigate to Connection Config → SNMP Agent. Enable the agent and configure the fields:


SNMP Configuration Fields Explained:

  • Agent (Enabled/Disabled) – Turns SNMP support on or off.
  • Port (default: 161) – UDP port for SNMP communication.
  • Read Community (default: public) – password for read-only access via SNMP (GET, GETNEXT). It allows retrieving device parameters but not modifying them. Default value public should be changed for security.
  • Write Community (default: private) – password for read/write access via SNMP (SET). It allows changing thresholds or triggering actions (e.g., calibration). Default value private should also be replaced with a unique string.
  • Version – SNMP protocol version. Default is SNMPv2c.
  • Username – Used only with SNMPv3 (secure mode).
  • Auth Key – Authentication password (SNMPv3).
  • Auth Protocol – Authentication algorithm (MD5/SHA) for SNMPv3. Default: None.


? For simple integration, SNMPv2 with read/write communities is enough. For secure networks, use SNMPv3.

3. Working with iReasoning MIB Browser


➡️ Download iReasoning MIB Browser: https://www.ireasoning.com/downloadmibbrowserfree.php


To configure SNMP monitoring with GP-Probe, follow these steps:

  • Open File → Load MIBs and select the provided MIB file (GP_Probe_DIN_L1.mib or GP_Probe_TGE2.mib).
  • Browse the OID tree to see available commands and parameters (Global info, GNSS data, Limits, Actions).
  • Click Advanced and configure your Read Community and Write Community strings for authentication.
  • With this setup you can easily query probe status, adjust limits, or run actions directly from the graphical interface.

4. MIB Files


Below you can download the official MIB files: