Extremely high softirq load > 90 % when DoS attacking embedded device

Pieter Cardoen

New Member

I am trying to make my embedded device robust against DoS attack but I notice that the system has a tremendously high softirq load causing the system to hang completely.

I am testing the system by pushing a large number of UDP messages to the system (> 250k messages per second).

Is there a way to protect our system against an attack of this kind?
Could we use traffic control or iptables for this?


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