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I wanted to test something with Wireshark and upon launching it, I noticed that some device named "AvmAudio" continuously broadcasts some "SW version request" (HomePlug AV protocol) even though our power line does not support this. My guess is that this is a feature of the FritzBox 7530 I've got here, but I cannot find an option in the admin panel to disable this feature. Is it even possible to disable it?
Cubi73
Posted 2019-04-04T21:02:08.480
Reputation: 291
1Wondering about the same (FritzBox 7362 SL) – Mathias Conradt – 2019-04-15T20:04:19.593
Why do you assume it's part of the HomePlug AV protocol? The FritzBox shouldn't be aware whenever you're using power line or not as it's just a regular router.
AvmAudioalso might be related to either the media server functionality or VoIP/DECT if the model supports it. – Seth – 2019-12-16T12:38:43.863@Seth I can rule out any of those media services, because I explicitly disabled them. And I don't really assume the protocol to be HomePlug AV... Wireshark tells me that it is (see screenshot above). – Cubi73 – 2019-12-17T23:52:24.837
Did you check the source? While there is a broadcast MAC header the information you've blurred out might give you a hint which device is sending that. Did you check whenever you see those broadcasts if you remove the Fritzbox? That way you could narrow it down further. Did you check your PowerPlug and Fritzbox manuals for hints? – Seth – 2019-12-18T06:26:11.243
@Seth Yep, I checked that device. The sending device's MAC address and my router's MAC address differ just in the last digit, so I think it's safe to assume that my router is spamming the network. If I find some time window, where nobody is using the router, I'll make sure to check whether taking it offline makes those packets disappear. In the mean time, I'm searching for the manual. – Cubi73 – 2019-12-18T06:37:36.820