if bits-ones > maxCIDRBits {
		return fmt.Errorf("specified %s is too large; for %d-bit addresses, the mask must be >= %d", cidrFlag, bits, bits-maxCIDRBits)
	}

	return nil
}

func validateServiceNodePort(options Extra) []error {
	var errs []error

	if options.KubernetesServiceNodePort < 0 || options.KubernetesServiceNodePort > 65535 {

			options:      makeOptionsWithPort(30067, 30065, 5),
			expectErrors: false,
		},
	}

	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			errs := validateServiceNodePort(tc.options.Extra)
			if errs != nil && !tc.expectErrors {
				t.Errorf("expected no errors, error found %+v", errs)
			}
		})
	}
}