Why "net.ipv4.icmp_ignore_bogus_error_messages" parameter fails to get applied with "unknown key" error using sysctl command in RHEL?

Solution Unverified - Updated -

Issue

  • What can I do if I encounter an error message like 'error when doing sysctl -p?
net.ipv4.icmp_ignore_bogus_error_messages" is an unknown key
  • Why am I unable to apply this parameter?

Environment

  • Red Hat Enterprise Linux (RHEL) 5.
  • Red Hat Enterprise Linux (RHEL) 6.
  • Kernel tuning parameters.

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