Asus Router Prometheus Exporter

About

Asus-prometheus-exporter uses a asus router's local endpoints to export the router’s metric data (CPU usage, Memory usage, incoming and outgoing traffic) into Prometheus metric format. Setting up a local instance of Prometheus and Grafana, useful insights are provided into the health of your home network.

Example Grafana Dashboard

Asus-prometheus-exporter allows for passive collection of metrics without touching your routers configuration or using SNMP. Asus-prometheus-exporter utilizes the same endpoints that the routers homepage uses to display the status of the router and network.

Capability

Can export:

• CPU usage on each core
• Memory usage
• Incoming and Outgoing Traffic
  • Bridge Traffic
  • Internet Traffic
  • Wired Traffic
  • Wireless Traffic

Requirements

• Golang
• Asus Router
  • Works with RT-AX82U

Usage

Raspberry Pi (Raspberry Pi OS)

1. Clone the GitHub Repository:

git clone https://github.com/CipherDoc34/asus-prometheus-exporter.git

1. Run the main.go file in headless mode:

nohup go run asus-prometheus-expoter/main.go -uname=<username default:admin> -passwd=<password>&

1. Navigate to localhost:8000/metrics to confirm everything is working

Configuring Prometheus

1. Follow Prometheus installation steps: https://prometheus.io/docs/prometheus/latest/installation/
2. Edit prometheus.yml

global:
  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
  # scrape_timeout is set to the global default (10s).

# A scrape configuration containing exactly one endpoint to scrape:
scrape_configs:
  - job_name: "asus"

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.
    static_configs:
      - targets: ["localhost:8000"] #Asus-prometheus-exporter endpoint

1. Run Prometheus using the prometheus.yml config file:

./prometheus --config.file=prometheus.yml &

1. Visit localhost:9090 to confirm that Prometheus is running

Add Grafana Visualization

1. Follow Grafana’s installation steps: https://grafana.com/docs/grafana/latest/setup-grafana/installation/

2. Run Grafana Server.

   Linux:

sudo systemctl start grafana-server

1. Open localhost:3000. Login to Grafana (default username and password is admin)
2. Add a new Prometheus Data Source. Configure with Prometheus server URL http://localhost:9090
3. Press Build a Dashboard to start configuring