Martian Source

Oct 23 15:34:38 trinity kernel: martian source 255.255.255.255 from 10.225.80.1, on dev eth1 Oct 23 15:34:38 trinity kernel: ll header: ff:ff:ff:ff:ff:ff:00:09:7b:8d:08:54:0 8:00 --> as i heard, this problem is known and it is not an intrusion by another system - there is a malconfigured adress somewhere in the system oder in the kernel. But this message is filling my logs and my disks. So: - is it like i heard? (hopefully yes) - how can i solve this problem, so i will not get anymore message in my logs for that? Thx in advance! Roger