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How do you prevent IoT (internet devices/appliances) from connecting to the internet once you've initially configured them? (lemmy.world)

submitted 3 days ago* (last edited 3 days ago) by cheese_greater@lemmy.world to c/nostupidquestions@lemmy.ca

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A lot of devices require internet for st least one time to set them up.

How can I set them up such that as soon as I've programmed them/set their schedule, I can deny them access and prevent them from being chatty back with the mothership?

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[–] jet@hackertalks.com 13 points 3 days ago* (last edited 3 days ago)

Set up a dedicated Wi-Fi SSID for your iot devices, only. Allow those devices to connect to a non-internet routed VLAN.

Don't blacklist IP addresses, or Mac addresses, you're trusting the device not to change itself to get around your blacklist. Keep them completely segmented from your normal network. That's the best way

If they must have internet, you can use a white list while you're setting them up, and then remove the waitlist