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Fooling IoT devices as if they have internet access is it possible? (Yeelight minas ceiling light goes unavailable after physical switch-off without internet.) (lemmy.ml)

submitted 1 day ago* (last edited 1 day ago) by tiz@lemmy.ml to c/homeassistant@lemmy.world

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I have recently enforced a better privacy practice for my smart home devices, that includes creating a new access point for those devices and blocking them of internet access with VLAN.

Since then, my yeelight minas celiing lights goes unavailable whenever I physically switch them off and turn them on afterwards.

One really stupid thing is it needs internet access for using LAN control feature. it's really really dumb.

but at the same time, in this kind of age where everything wants to phone their home, i need to somehow mitigate this in every possible way such as by fooling the devices as if they have access to the internet.

Is this kind of things possible?

thanks!

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[–] TVA@thebrainbin.org 5 points 18 hours ago (1 children)

For a camera I've got that I don't care too much about, I had to give it a ~50KB network connection out and then it gets its handshake, but, doesn't have a good enough connection to actually upload video and then all the local features stay working. Eventually, I'll replace it, but, it's monitoring a place that I don't care about too much, so, it's low on the priority list.

Unfortunately, a light doesn't need much in the way of a connection to begin with, but, if it needs some kind of handshake, maybe you can watch the traffic with Wireshark and whitelist that specific traffic or see if someone else has done the work for it (a quick search didn't show anything for me, but, I haven't gone in depth or anything)

[–] tiz@lemmy.ml 3 points 6 hours ago

Limiting the bandwidth for the VLAN zone could be really interesting. Thanks for the insight