Why do I see "martian source" logs in the messages file ?

Solution Verified - Updated -

Issue

  • Why do I see martian source in the /var/log/messages file?
  • Why does the kernel log martian source messages?
kernel: martian source 192.168.0.1 from 192.168.0.255, on dev eth0
kernel: ll header: ff:ff:ff:ff:ff:ff:00:12:34:00:ab:cd:08:00

Environment

  • Red Hat Enterprise Linux (RHEL) all versions
  • IPv4 networking

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