Updated the list with three new allocations. 0x70 is not allocated yet.
This guy is using up its 30sec airtime per day every 3 minutes… in zurich, switzerland
This particular device is not registered to TTN as far as I can see, so unfortunately there’s not much we can do except hope that it quickly runs out of battery.
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I think all ttn gateways should blacklist such addresses in a way, that the gateway’s and backend’s processing power ist only minimally used… i consider this also as misuse of my internet and lan infrastructure if it is not blocked in the future…
The address itself is not the problem, it’s a perfectly valid address that could be registered to TTN.
Blocking devices by address introduces a DoS attack surface, as anyone can transmit data with the same address as an authentic device. The gateway won’t be able to tell the difference, and we don’t want to stop serving compliant devices if this happens.
Also, blocking traffic won’t solve the problem. The only real solution is to track down the device or the owner of the device.
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The real problem is that no one is actually obliged to follow LoRaWAN spec (or TTN fair access policy). So a couple of dozens of LoRa (but not LoRaWAN) devices can practically block all the LoRaWAN devices in some km. around still being compatible with legal requirements. That was known from the very beginning.
So I’m really surprised with the news about LoRaWAN-based street lights control systems etc. LoRaWAN (and LPWAN at all) surely wasn’t designet for such critical apps.
Thats interresting. So an attacker who wants to take out a gateway for whatever reason only needs to bundle a few nodes, make each node use one of the lora frequencies and never change frequency and send long data with sf12 every few seconds to completely make a gateway inoperational by this kind of DOS atack…
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LoRaWAN has always been a best effort technology, never intended for critical control. The same goes for e.g. WiFi. You can easily disturb all WiFi networks in a radius of a few miles if you really want to.
If criminal abuse ever happens, I think telco’s will be swift to locate and root out the cause. I think the chance of an accidental DOS attack is much higher, but that could be solved with additional gateways.
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It’s enough (but illegal) to have eight transmitter to almost block a typical gw. Just set preamble length to max. possible value (64K symbols), SF12, max. power (you may find 500 mW modules on the market 
) and start transmissions on each of eight channels.
I know that. It’s not me who installed these street lights 
Really? Yes, I’m sure they will try, but…
And be surprised that transmissions on other spreading factors still make it to the gateway? 
LoRa allows for simultaneous tranmission on 1 frequency with different spreaing factors…
All the eight phys. demodulators will be busy. You can try. That’s well-known “problem” of SX1301/08.
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The above message is actually for you. Yes, LoRa itself allows that waht you said. But currently existing HW implementation has some weaknesses.
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Or this forum can make a community activity of it 
. First one to locate the culprit gets a TTN gateway, backer edition.
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Putting a wideband “high” power signal with a bandwidth and frequency matching an application (like gps / gsm / FM radio / wifi ) will block that application. Receiver blocking by an in-band interferer is a problem for 95% of every wireless link on the world. This is why we have authorities and regulations to guide spectral usage, that is why there is a duty rule.
I am afraid that the only way to deal with is to accept it, this is the ISM band, you have to share it with others, you don’t own it.
Quite right, but that waht I’m talking about isn’t just trivial jamming.
I’m thinking about getting ten units. Street lights are Class C nodes, with ten transmitters I most probably can legally block their RX2 Oh, I even don’t need GWs, ten half-Watt modules are enough…
Poteto potato 
.
Neither LoRaWAN nor TTN fair-use policy has any teeth here. They are both advisory. But the regional regulations about ISM band use are controlled, either by duty cycle or AFA/LBT. If someone breaks those rules then it is illegal and they are open to prosecution.
Like CE marking, its a complaint-driven process. If you complain enough, the local regulator should take action.
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Start with googling for “lora preamble selectivity”, my dear electrical engineer and hobbyist. At the momement, LoRa seems to be double Dutch for you Meditate, and you’ll reach you’ll reach enlightenment.