What is the "IPV4_FAILURE_FATAL=yes" directive in ifcfg file? How to disable IPV6 on RHEL 6?

Solution Verified - Updated -

Issue

  1. What is the "IPV4_FAILURE_FATAL=yes" directive in ifcfg-ethX file?
  2. How can I disable IPv6 on RHEL6 permanently?

Environment

Red Hat Enterprise Linux 6

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