I have an OpenBSD firewall appliance that is reporting to its console:
AAA.BBB.CCC.DDD sent up an invalid ICMP error to a broadcast.
The other interesting thing about this is that the address
AAA.BBB.CCC.DDD is an internal interface on the OpenBSD firewall
appliance, the same device that is reporting it.
Does anyone have any clues as to what is going on here?