LG washing machine sending 3.7GB of data a day

Re:LG washing machine sending 3.7GB of data a day by yakz on Saturday January 13, 2024 @05:09PM (#38985130)

My Ubiquiti UniFi UDM is not good at device identification. It's kind of annoying because I have this big list of devices on the network and it's peppered with devices that I know don't exist. I'd appreciate it if it said something like "Maybe iPad Air", instead of just "iPad Pro 2nd Gen" when I know no such device is on my network.

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Re:LG washing machine sending 3.7GB of data a day by stock_toaster on Saturday January 13, 2024 @05:26PM (#38985264)

ios devices (unsure about android) use random MACs on wireless networks by default.

https://support.apple.com/en-us/102509

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Re:LG washing machine sending 3.7GB of data a day by manwe150 on Saturday January 13, 2024 @08:09PM (#38986417)

The random MAC is generated only once per network, and re-used for every subsequent future connection to it, until the network settings are reset

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Re:LG washing machine sending 3.7GB of data a day by justusthane on Saturday January 13, 2024 @06:50PM (#38985956)

The random MAC would still be within the vendor prefix though, and a MAC address won’t identity a specific device type anyway.

Edit: I’m wrong

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Re:LG washing machine sending 3.7GB of data a day by epcoa on Saturday January 13, 2024 @07:31PM (#38986192)

No it isn’t, vendor prefixes are sort of an anachronism. Bit 41 - bit 1 of the first octet is reserved for local (random) use. That and the group bit (40) set to 0 means the second digit of the human readable MAC is 2, 6, A or E, but that’s it.

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Re:LG washing machine sending 3.7GB of data a day by justusthane on Saturday January 13, 2024 @07:53PM (#38986332)

My bad, thanks for the correction! You still can’t identify a specific device type based on the MAC address though, right?

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Re:LG washing machine sending 3.7GB of data a day by lathiat on Saturday January 13, 2024 @08:32PM (#38986529)

On the same WiFi network yes you can - it uses the same MAC on the same SSID. Remembers the "random" MAC after the first connection (and if you first connected to the networks before they added MAC randomisation in iOS14, it "remembers" the actual MAC of the device, so you didn't have compatability issues after the iOS14 upgrade).

So you can't use it to track devices between multiple SSIDs including when scanning for networks, but you can use it to persistently identify a device when connected to the same network.

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Re:LG washing machine sending 3.7GB of data a day by ThePowerOfFuet on Sunday January 14, 2024 @03:54AM (#38988678)

You misread the question.

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Re:LG washing machine sending 3.7GB of data a day by lathiat on Monday January 15, 2024 @09:34PM (#39008731)

Yep, you're right. Agree with the other post - the randomly generated MACs have no manufacturer info.

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Re:LG washing machine sending 3.7GB of data a day by ThePowerOfFuet on Sunday January 14, 2024 @03:54AM (#38988680)

Other than perhaps the manufacturer from the OUI, no.

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Re:LG washing machine sending 3.7GB of data a day by epcoa on Sunday January 14, 2024 @04:05AM (#38988738)

There’s no manufacturer in a randomly generated local OUI.

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Re:LG washing machine sending 3.7GB of data a day by vsgherzi on Saturday January 13, 2024 @05:39PM (#38985370)

Random aside for this, I believe this functionality existed for many years but actually hasn’t worked until recently. (Take this with a grain of salt)

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Re:LG washing machine sending 3.7GB of data a day by fifilura on Saturday January 13, 2024 @07:28PM (#38986168)

I had to turn random MAC off, my google mesh could not handle it. Wifi on my samsung phone would only work for a couple of minutes.

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Re:LG washing machine sending 3.7GB of data a day by neilv on Saturday January 13, 2024 @06:13PM (#38985670)

Do the UniFi products just try to use MAC addrs for this, or do passive/active TCP/IP fingerprinting?

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Re:LG washing machine sending 3.7GB of data a day by gh02t on Saturday January 13, 2024 @09:58PM (#38986996)

Just MAC registrations.

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Re:LG washing machine sending 3.7GB of data a day by bdavbdav on Tuesday January 16, 2024 @05:19PM (#39019944)

I think it’s fingerprinting - if you look in the logs it gives you certainties of different devices that it thinks it might be

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Re:LG washing machine sending 3.7GB of data a day by wkat4242 on Saturday January 13, 2024 @06:27PM (#38985778)

You can fix this by setting fixed IPs. But yes Unifi is not great at this.

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Re:LG washing machine sending 3.7GB of data a day by NelsonMinar on Saturday January 13, 2024 @05:29PM (#38985285)

The traffic stats my UDM shows are complete fiction. The data it presents makes no sense.

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Re:LG washing machine sending 3.7GB of data a day by Gyrantula2 on Sunday January 14, 2024 @12:19AM (#38987735)

Occasionally it's fun to discover new devices.

"It thinks my WiFi dog feeder is a Technoelectrocom 56XR-2000? What the hell is (was) that?"

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Re:LG washing machine sending 3.7GB of data a day by paradox460 on Sunday January 14, 2024 @01:23PM (#38992914)

I found out that unifi plug in doorbell chimes use an esp32 this way because I saw one on my devices table, before it had booted fully and handshook as it's real Identity

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Re:LG washing machine sending 3.7GB of data a day by Gyrantula2 on Sunday January 14, 2024 @10:22PM (#38997112)

Do you mean the non-PoE version? I have the PoE version sitting in a box somewhere and I'm a ESP32 enthusiast so I'm wondering if that's what I'll be doing today. Surely they're using it just as a WiFi coprocessor? Or...?

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Re:LG washing machine sending 3.7GB of data a day by paradox460 on Monday January 15, 2024 @12:13AM (#38997660)

The non PoE one, the one that just plugs into a normal power outlet

My PoE one has only ever identified as what Ubiquiti thinks it is, so no idea

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Re:LG washing machine sending 3.7GB of data a day by Saris on Sunday January 14, 2024 @10:30AM (#38991263)

Most personal devices now use randomized MACs so it's hard to ID them.

You can go via IP though, pull up your DHCP lease on your phone/laptop/whatever and match it to the same IP in Unifi, then manually name the device.

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Re:LG washing machine sending 3.7GB of data a day by nubinetwork on Sunday January 14, 2024 @06:03PM (#38995354)

Cisco ISE thinks all iPhones are FreeBSD.

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Re:LG washing machine sending 3.7GB of data a day by doubleg72 on Tuesday January 16, 2024 @12:00AM (#39009699)

That’s because your profiling is not set up correctly

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Re:LG washing machine sending 3.7GB of data a day by nubinetwork on Thursday January 18, 2024 @01:24AM (#39038604)

I didn't set it up. :)

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