Check manual page of fritz_conn

AVM Fritz!Box: Connection State

Distribution	Official part of Checkmk
License	GPLv2
Supported Agents	Fritzbox

This check outputs the connection state of the Fritz!Box WAN connection. If available, it also outputs the current WAN IP Address and the last reported connection error.

The check uses data provided by the fritzbox special agent. You need to configure this agent to be used for the Fritz!Box you like to monitor. The special agent uses uPnP to get the needed information from the device.

Discovery

One service is created for each system if the agent has a section {<<>>} and the keys {NewConnectionStatus} and {NewExternalIPAddress} are in this section.