Network diagnostics and monitoring for Node-RED

// features

What it does

All nodes are in the palette under brdc-network-nodes. Works on Windows, macOS and Linux, with Node-RED 1.0 or newer.

• Ping IP

  Quick reachability check of an IP address or hostname, IPv4 and IPv6, with latency.

• Enhanced Ping

  Multiple pings with statistics: average, minimum and maximum, packet loss and jitter. Also continuous monitoring, with retries.

• Network Discovery

  Scan a subnet (CIDR), an IP range or a single address. With hostnames, an optional port scan and Bonjour/mDNS to find printers, NAS and other services.

• Performance Monitor

  Watch several targets continuously, with thresholds for latency, packet loss and availability and an alert when one is exceeded.

• DNS Lookup

  Query A, AAAA, MX, TXT, CNAME and NS records, or do a reverse lookup (PTR) of an IP address.

• TCP Port Check

  Check whether ports are open, also when ping is blocked. Several ports at once, with the response time per port.

• Traceroute

  The path to a target hop by hop, with IP address and response times. Uses traceroute or tracert, depending on the platform.

• Bandwidth Monitor

  Measures real download speed in Mbps against a configurable test URL, a Cloudflare speed test by default.

• SNMP Poll

  Read switches, routers, printers and UPS units over SNMP v1 and v2c. Several OIDs per poll; one bad OID does not break the rest.

// installation

Install

• 01Install

  In Node-RED: Menu → Manage palette → Install and search for node-red-contrib-network-tools. Or with npm in your Node-RED folder: npm install node-red-contrib-network-tools

• 02Restart

  Restart Node-RED after installing with npm. The nodes are then in the palette under brdc-network-nodes.

• 03Build a flow

  Drag a node into your flow, fill in the target (IP address, hostname or subnet) and wire up an inject and a debug node.

• 04Deploy

  Click Deploy. Targets can also be passed per message through msg.payload, for example from a dashboard or another flow.