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00:00 Source Address 00:00 Destination Address 0x0000 Protocol 342 length

Our network is being flooded by these types of packets. I have searched for 00:00:00:00:00:00 mac on all the switches to see if there was a single or multiple devices causing this issue. I believe it is a similar issue to the one below. Anyone have any suggestions of where to start?

https://osqa-ask.wireshark.org/questions/59350/suspicious-packets-with-all-zero-ethernet-header