Hi, after some reading and considerations done over the weekend I am going to try out the distributed monitoring approach with livestatus on one of the remote sites. I ordered a RasPi 3 for that to have a sufficiently capable device to run the slave site.
At the other site (where I basically only would like to have a bit more details about the FritzBox and connected repeaters as well as usage of the wifi network) I’m going to stick with the RasPi B.
There, I’m still looking for a lean way to get the Fritz data pulled from the agent somehow and provide with its own output when called by the check_mk server.