Replies: 13 comments 4 replies
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Primitive tools like IP scanners may hammer the device with calls, and thereby overloading it. Some devices may not be able to power sustained Wifi activity when "spamming" by bad requests. |
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But why not all Devices? And why did it work a few months back. Used this Scanner for Years and had no Problem with Tasmota. And it is a bad thing if Tasmota could not handl wifi Spam and reboot the device!!! ok if it reboot but only the software stack! |
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Some devices have a better internal power supply than others, and can survive your DOS attack. And this is not about what Tasmota can handle, but about what your hardware can handle. Comparing back in time can be random factors, or just that devices degrade with time. |
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An IP scan is effectively a DOS attack. I did not say DDOS. |
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ok fine DOS Attack... Whatever... but why is the device rebooting. If i make a "ARP" Request from the Router or Switch there is no Reboot. The IP Scan should be the same thing. And as i say its not every Tasmota Device! So is it possible to Log the event? Or does someone know something about it? |
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Well, that depends on what your crude tool is doing when it scans via http. It may be making a lot of requests. Way different from just an ARP request. And when it is not every Tasmota device, that just supports my hypothesis that it is not about what Tasmota can handle, but about what weak hardware can handle. Thus, is not an "event" that Tasmota knows about, and even if it could log it, that log would be gone immediately when the device croaks. |
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How is the management tool you show getting the infos from the device? |
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Crude Tool are you kidding me? The only "Crude" thing here is you. I ask if there is a Bug in the Firmware or a Setting. Mybe it is not only the "crude" IP Scan Tool (only HTTP/HTTPS). Maybe it is a Bug in the Webserver ... Or something else?! And what do you mean with WEAK Hardware? The Problem happens on an OLD Device and a new Device... Different Brand and Chip inside esp32 vs esp8266. So in Short not very User Fiendly... The Management tool is only used AFTER the Problem. So no load on the http/s front. |
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Is this your usual friendly wording when people trying to help? Btw. probably by the most experienced Tasmota user. Well wish you luck with this way. |
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?? I dont start with the "friendly" wording. Yeah i am not in a good mood if like @sfromis telling us users.: "dont use crude tool or weak hardware". That is not helping. Not me not you not Tasmota. |
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So Fresh start: Can someone recreate this problem? |
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You might want to look at the result of command |
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Hello
i have a strange Problem.
A few of my Tasmota Devices reboot after making a IP Scan in my network. First i thought my device reboot (behind Tasmota) but after a while i found out if i make a ip scan with "http" in the Programm Advanced IP Scanner. The Tasmota devices reboots.
And the Strange thing is that is not the same Hardware! Mix of "Sonoff Pow", "NOUS A1T","EIGHTREE".
Here are the Settings from Advanced IP Scanner.
![image](https://private-user-images.githubusercontent.com/30344592/349852665-ed41bc2e-f590-4de6-81fb-ca0b8af1ba85.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.kNbakqcEWZn7LrGkAqYrZRqUSAykWKfwOSSl47tgETQ)
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Here a short List of my Devices: not all Reboot!
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![image](https://private-user-images.githubusercontent.com/30344592/349853649-68e2c99c-c133-4627-87a2-2386a72251f8.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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._TPN78GMWbaubc89ALDuIfRytoEN_Eg5p5W_RTUnBNI)
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I could not find any hint why they reboot.
Ideas? Hints?
Thanks for the Help.
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