Is "net.ipv4.icmp_destunreach_rate" sysctl parameter available in RHEL?

Solution Verified - Updated -

Issue

  • I am trying to add the parameter and value net.ipv4.icmp_destunreach_rate = 0 to the /etc/sysctl.conf file.
  • When I do and run sysctl -p I get the error:
"net.ipv4.icmp_destunreach_rate" is an unknown key"
  • I'm guessing that I'm missing a kernel module that would allow this, but not sure which one if so. Will you help me to do this please?
  • Is this parameter supported in RHEL?

Environment

  • Red Hat Enterprise Linux (RHEL) 5 and 6.
  • systctl kernel tunables.

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