IP TTL can be set to 0

Solution Verified - Updated -

Issue

  • Attempting to set TTL to 0 on RHEL5 correctly results in the error message "can't set unicast time-to-live: Invalid argument", however RHEL6 incorrectly accepts TTL 0.

Environment

  • Red Hat Enterprise Linux 6.0 to 6.3
  • IPv4 networking

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