Address: netutils.ParseIPSloppy("1.2.3.4"),
				Port:    3080,
			},
			rsB: &RealServer{
				Address: netutils.ParseIPSloppy("1.2.3.4"),
				Port:    3080,
			},
			equal:  true,
			reason: "All fields equal",
		},
		{
			rsA: &RealServer{
				Address: netutils.ParseIPSloppy("2012::beef"),
				Port:    3080,
			},
			rsB: &RealServer{
				Address: netutils.ParseIPSloppy("2012::beef"),

	"k8s.io/kubernetes/pkg/registry/registrytest"
	netutils "k8s.io/utils/net"
)

func newStorage(t *testing.T) (*etcd3testing.EtcdTestServer, ipallocator.Interface, allocator.Interface, storage.Interface, factory.DestroyFunc) {
	etcdStorage, server := registrytest.NewEtcdStorage(t, "")
	_, cidr, err := netutils.ParseCIDRSloppy("192.168.1.0/24")
	if err != nil {
		t.Fatal(err)
	}

func convertToV1IPFamily(ipFamily netutils.IPFamily) v1.IPFamily {
	switch ipFamily {
	case netutils.IPv4:
		return v1.IPv4Protocol
	case netutils.IPv6:
		return v1.IPv6Protocol
	}

	return v1.IPFamilyUnknown
}

// OtherIPFamily returns the other ip family
func OtherIPFamily(ipFamily v1.IPFamily) v1.IPFamily {
	if ipFamily == v1.IPv6Protocol {
		return v1.IPv4Protocol
	}

	return v1.IPv6Protocol
}

	// Add a virtual server
	vs := &utilipvs.VirtualServer{
		Address:  netutils.ParseIPSloppy("10.20.30.40"),
		Port:     uint16(80),
		Protocol: string("TCP"),
	}
	rss := []*utilipvs.RealServer{
		{Address: netutils.ParseIPSloppy("172.16.2.1"), Port: 8080, Weight: 1},
		{Address: netutils.ParseIPSloppy("172.16.2.2"), Port: 8080, Weight: 2},
		{Address: netutils.ParseIPSloppy("172.16.2.3"), Port: 8080, Weight: 3},
	}

			},
			expectIPs: []net.IP{netutils.ParseIPSloppy("1.2.3.4")},
		},
		{
			name: "IPv4-only, external-first",
			addresses: []v1.NodeAddress{
				{Type: v1.NodeExternalIP, Address: "4.3.2.1"},
				{Type: v1.NodeExternalIP, Address: "4.3.2.2"},
				{Type: v1.NodeInternalIP, Address: "1.2.3.4"},
			},
			expectIPs: []net.IP{netutils.ParseIPSloppy("1.2.3.4")},
		},
		{

See the License for the specific language governing permissions and
limitations under the License.
*/

package server

import (
	"net"
	"testing"

	netutils "k8s.io/utils/net"
)

func TestLoopbackHostPortIPv4(t *testing.T) {
	_, ipv6only, err := isIPv6LoopbackSupported()
	if err != nil {
		t.Fatalf("fail to enumerate network interface, %s", err)
	}
	if ipv6only {

				{Type: v1.NodeInternalIP, Address: "3.3.3.3"},
			},
			wantDNSNames: []string{"hostname-1", "hostname-2", "hostname-3"},
			wantIPs:      []net.IP{netutils.ParseIPSloppy("1.1.1.1"), netutils.ParseIPSloppy("2.2.2.2"), netutils.ParseIPSloppy("3.3.3.3")},
		},
		{
			name: "handle IP and DNS hostnames",
			addresses: []v1.NodeAddress{
				{Type: v1.NodeHostName, Address: "hostname"},

		_, serviceCIDR, err = netutils.ParseCIDRSloppy(nodeIPAMConfig.ServiceCIDR)
		if err != nil {
			klog.ErrorS(err, "Unsuccessful parsing of service CIDR", "CIDR", nodeIPAMConfig.ServiceCIDR)
		}
	}

	if len(strings.TrimSpace(nodeIPAMConfig.SecondaryServiceCIDR)) != 0 {
		_, secondaryServiceCIDR, err = netutils.ParseCIDRSloppy(nodeIPAMConfig.SecondaryServiceCIDR)
		if err != nil {

import (
	genericoptions "k8s.io/apiserver/pkg/server/options"
	netutils "k8s.io/utils/net"
)

// NewSecureServingOptions gives default values for the kube-apiserver which are not the options wanted by
// "normal" API servers running on the platform
func NewSecureServingOptions() *genericoptions.SecureServingOptionsWithLoopback {
	o := genericoptions.SecureServingOptions{
		BindAddress: netutils.ParseIPSloppy("0.0.0.0"),
		BindPort:    6443,

	"net"

	utilnet "k8s.io/apimachinery/pkg/util/net"
	netutils "k8s.io/utils/net"
)

// DefaultServiceNodePortRange is the default port range for NodePort services.
var DefaultServiceNodePortRange = utilnet.PortRange{Base: 30000, Size: 2768}

// DefaultServiceIPCIDR is a CIDR notation of IP range from which to allocate service cluster IPs
var DefaultServiceIPCIDR = net.IPNet{IP: netutils.ParseIPSloppy("10.0.0.0"), Mask: net.CIDRMask(24, 32)}