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Version: v25.1.1

Router Host Log Access

Getting logs from the router

Purpose​

A known bug in the fluent-bit OpenWRT package (openwrt/packages#28892) prevents logs from being forwarded to Loki. Until the package is updated, router logs are not available in Grafana and must be read directly on the router host.

Prerequisites Checklist​

  • SSH private key available
  • Network access to host-router

Step 1: Connect to the router host​

ssh -i <ssh private key> root@host-router

Step 2: Read the logs​

OpenWRT uses logread to read from the in-memory syslog ring buffer.

Dump all current logs:

logread

Follow logs in real time:

logread -f

Filter by keyword (e.g. a service name or error string):

logread | grep dnsmasq

Troubleshooting​

SSH connection refused or permission denied​

Confirm you are using the correct key and that your machine has network access to host-router. If the connection still fails, check that the router host is reachable and the root user is authorized.

logread output is empty​

The syslog ring buffer is in-memory and resets on reboot. If the router was recently restarted, earlier log entries will not be available.