code: func getIPTablesHasCheckCommand(vstring string) bool {
  	minVersion, err := utilversion.ParseGeneric(MinCheckVersion)
  	if err != nil {
  		klog.Errorf("MinCheckVersion (%s) is not a valid version string: %v", MinCheckVersion, err)
  		return true
  	}
  	version, err := utilversion.ParseGeneric(vstring)
  	if err != nil {
  		klog.Errorf("vstring (%s) is not a valid version string: %v", vstring, err)
  		return true
  	}
  	return version.AtLeast(minVersion)
  }
docs: // Checks if iptables has the "-C" flag