Why does tcpdump display some packets as "packets dropped by kernel" ?

Solution Verified - Updated -

Issue

Why does tcpdump display some packets as packets dropped by kernel?

465128 packets captured
465400 packets received by filter
272 packets dropped by kernel

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • tcpdump performing packet capture on network interface

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