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High CPU usage on R65 / R67 / R70 / R71 / R75 Security Gateway when managed by R75.47 / R76 Management Server Technical Level
Symptoms
  • High CPU usage on R65 / R70.x / R71.x / R75 / R75.10 Security Gateway when managed by R75.47 / R76 Management Server.

  • High CPU usage on VSX R65 / R67 / R67.10 Gateway when managed by R75.47 / R76 Management Server.

Cause

On R75.47 / R76 Management Server, there is a license for IPv6, which causes the INSPECT rules to include more checks on the packet.

For instance, testing the packet header length will result in testing if this is an IPv6 kernel. When there is no IPv6 license on the R75.47 / R76 Management Server, the packet header length operation will be translated to a simple action, which does not require any other function calls.


Solution
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