}
	return serviceCIDR
}

func makeIPAddress(name string) *networkingapiv1alpha1.IPAddress {
	family := string(v1.IPv4Protocol)
	if netutils.IsIPv6String(name) {
		family = string(v1.IPv6Protocol)
	}
	return &networkingapiv1alpha1.IPAddress{
		ObjectMeta: metav1.ObjectMeta{
			Name: name,
			Labels: map[string]string{

		}
	} else {
		// Default to etcd static pod on localhost
		// localhost IP family should be the same that the AdvertiseAddress
		etcdLocalhostAddress := "127.0.0.1"
		if utilsnet.IsIPv6String(localAPIEndpoint.AdvertiseAddress) {
			etcdLocalhostAddress = "::1"
		}

		return nil, nil
	}

	toRelease := make(map[api.IPFamily]string)
	for _, ip := range service.Spec.ClusterIPs {
		if netutils.IsIPv6String(ip) {
			toRelease[api.IPv6Protocol] = ip
		} else {
			toRelease[api.IPv4Protocol] = ip
		}
	}
	return al.releaseIPs(toRelease)
}

func (al *Allocators) Destroy() {

		}
	} else {
		// Headful: init ipFamilies from clusterIPs.
		service.Spec.IPFamilies = make([]api.IPFamily, len(service.Spec.ClusterIPs))
		for idx, ip := range service.Spec.ClusterIPs {
			if netutil.IsIPv6String(ip) {
				service.Spec.IPFamilies[idx] = api.IPv6Protocol
			} else {
				service.Spec.IPFamilies[idx] = api.IPv4Protocol
			}
		}
		if len(service.Spec.IPFamilies) == 1 {

func (hst HTTPProxyCheck) Check() (warnings, errorList []error) {
	klog.V(1).Infoln("validating if the connectivity type is via proxy or direct")
	u := &url.URL{Scheme: hst.Proto, Host: hst.Host}
	if netutils.IsIPv6String(hst.Host) {
		u.Host = net.JoinHostPort(hst.Host, "1234")
	}

	req, err := http.NewRequest("GET", u.String(), nil)
	if err != nil {
		return nil, []error{err}
	}

	var validPrimaryIP, validSecondaryIP func(ip string) bool
	if len(kl.nodeIPs) == 0 || utilnet.IsIPv4(kl.nodeIPs[0]) {
		validPrimaryIP = utilnet.IsIPv4String
		validSecondaryIP = utilnet.IsIPv6String
	} else {
		validPrimaryIP = utilnet.IsIPv6String
		validSecondaryIP = utilnet.IsIPv4String
	}
	for _, ip := range podIPs {
		if validPrimaryIP(ip) {
			ips = append(ips, ip)
			break
		}
	}

				t.Fatalf("podToEndpointAddressForService should have returned error but it did not")
			}

			if err != nil && tc.expectError {
				return
			}

			if utilnet.IsIPv6String(epa.IP) != (tc.expectedEndpointFamily == ipv6) {
				t.Fatalf("IP: expected %s, got: %s", tc.expectedEndpointFamily, epa.IP)
			}
			if *(epa.NodeName) != pod.Spec.NodeName {

			}

			// 4=>6
			if service.Spec.IPFamilies[i] == core.IPv4Protocol && netutils.IsIPv6String(ip) {
				allErrs = append(allErrs, field.Invalid(clusterIPsField.Index(i), ip, fmt.Sprintf("expected an IPv4 value as indicated by `ipFamilies[%v]`", i)))
			}
			// 6=>4
			if service.Spec.IPFamilies[i] == core.IPv6Protocol && !netutils.IsIPv6String(ip) {