Would it be possible to cache known devices at the gateway bridge?

I am thinking of denial of service type attacks. If someone were to bring a bunch of devices to a location with a gateway and send packets continuously, could they bring down chirpstack components by generating traffic / errors?

If that’s a possible issue, is there a way to cache known devices at the gateway bridge?

As a start, the Gateway Bridge can currently filter by NetID and JoinEUI. That takes place after a packet has been received by the radio, of course, so it won’t help with saturated airwaves.

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