LibreNMSInstall

Overview

This node integrates with the LibreNMS network monitoring system to retrieve routing-related information, specifically OSPF (Open Shortest Path First) neighbors. It is useful for network administrators who want to monitor and analyze OSPF neighbor relationships on their devices managed by LibreNMS. For example, it can be used to list all OSPF neighbors on a particular device or filter neighbors by hostname, helping in troubleshooting routing issues or verifying network topology.

Properties

Output

The node outputs JSON data representing the list of OSPF neighbors retrieved from LibreNMS. Each item in the output corresponds to an OSPF neighbor entry, typically including details such as neighbor IP, state, interface, and other relevant OSPF neighbor attributes as provided by LibreNMS API.

No binary data output is involved.

Dependencies

• Requires connection to a LibreNMS instance.
• Needs an API key credential configured in n8n to authenticate requests to LibreNMS.
• The base URL of the LibreNMS API must be set in the credentials.
• Optionally, SSL certificate validation can be disabled via credential settings if using self-signed certificates.

Troubleshooting

• Common Issues:
  • Authentication failures due to incorrect or missing API key.
  • Network connectivity problems reaching the LibreNMS server.
  • Filtering by hostname may return no results if the hostname does not exist or is misspelled.
• Error Messages:
  • HTTP 401 Unauthorized: Check that the API key credential is correct and has sufficient permissions.
  • HTTP 404 Not Found: Verify the LibreNMS API base URL and resource paths.
  • Empty result sets: Confirm that the device hostname filter matches existing devices with OSPF neighbors.

Links and References

• LibreNMS Official Documentation
• OSPF Protocol Overview
• LibreNMS API Documentation

If you need further details about other operations or resources, feel free to ask!