Getting lots of martian packets

Investigations are continuing.
I’ve noticed the martian packet storm lasts for a maximum time of 15mins, or 900seconds.
The martians are not just from clients on the WiFi.
Linux clients on WiFi or cable don’t result in martians.

Just saw this post:

using the scan feature under diagnostics generates martian packets that seem very similar to what I’m getting?

Does NethServer run arp-scan to validate dhcp leases?

bob