in   IP
	mask IPMask
	out  IP
}{
	{IPv4(192, 168, 1, 127), IPv4Mask(255, 255, 255, 128), IPv4(192, 168, 1, 0)},
	{IPv4(192, 168, 1, 127), IPMask(ParseIP("255.255.255.192")), IPv4(192, 168, 1, 64)},
	{IPv4(192, 168, 1, 127), IPMask(ParseIP("ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffe0")), IPv4(192, 168, 1, 96)},
	{IPv4(192, 168, 1, 127), IPv4Mask(255, 0, 255, 0), IPv4(192, 0, 1, 0)},

		},
		{
			desc:            "want IPv4 and receive IPv4 and IPv6",
			ipString:        []string{"192.168.200.2", "192.1.34.23", "fd00:20::1", "2001:db9::3"},
			wantIPv6:        false,
			expectCorrect:   []string{"192.168.200.2", "192.1.34.23"},
			expectIncorrect: []string{"fd00:20::1", "2001:db9::3"},
		},
		{
			desc:            "want IPv4 and receive IPv4 only",

    }

    return true;
  }

  /**
   * Returns the IPv4 address embedded in an IPv4 compatible address.
   *
   * @param ip {@link Inet6Address} to be examined for an embedded IPv4 address
   * @return {@link Inet4Address} of the embedded IPv4 address
   * @throws IllegalArgumentException if the argument is not a valid IPv4 compatible address
   */

    }

    return true;
  }

  /**
   * Returns the IPv4 address embedded in an IPv4 compatible address.
   *
   * @param ip {@link Inet6Address} to be examined for an embedded IPv4 address
   * @return {@link Inet4Address} of the embedded IPv4 address
   * @throws IllegalArgumentException if the argument is not a valid IPv4 compatible address
   */

			n -= 8
			continue
		}
		m[i] = ^byte(0xff >> n)
		n = 0
	}
	return m
}

// Well-known IPv4 addresses
var (
	IPv4bcast     = IPv4(255, 255, 255, 255) // limited broadcast
	IPv4allsys    = IPv4(224, 0, 0, 1)       // all systems
	IPv4allrouter = IPv4(224, 0, 0, 2)       // all routers
	IPv4zero      = IPv4(0, 0, 0, 0)         // all zeros
)

// Well-known IPv6 addresses
var (

			config: &proxyconfigapi.KubeProxyConfiguration{
				DetectLocalMode: proxyconfigapi.LocalModeClusterCIDR,
				ClusterCIDR:     "10.0.0.0/14",
			},
			primaryIPFamily: v1.IPv6Protocol,
			// This will output a warning that there is no IPv6 CIDR but it
			// will still use the provided IPv4 CIDR for IPv4.
			expected: map[v1.IPFamily]proxyutil.LocalTrafficDetector{

    val request = Request(server1.url("/"))

    server1.enqueue(refusedStream)
    server2.enqueue(bodyResponse)

    dns[server1.hostName] = listOf(ipv6, ipv4)
    socketFactory[ipv6] = server1.inetSocketAddress
    socketFactory[ipv4] = server2.inetSocketAddress

    client =
      client.newBuilder()
        .fastFallback(false)
        .apply {
          retryOnConnectionFailure = false
        }

			want: true,
		},
		{
			name:        "all zeros ipv4",
			cidrStrings: []string{"224.0.0.0/24", "192.168.0.0/16", "fd00:1:d::/64", "0.0.0.0/0"},
			want:        true,
		},
		{
			name:        "all zeros ipv6",
			cidrStrings: []string{"224.0.0.0/24", "192.168.0.0/16", "fd00:1:d::/64", "::/0"},
			want:        false,
		},
		{
			name:        "ipv4 loopback",

		ip       string
		expected bool
	}{
		{"invalid missing address", "", false},
		{"invalid missing decimal points in IPv4 address", "1234", false},
		{"invalid incomplete IPv4 address", "1.2", false},
		{"invalid IPv4 CIDR provided instead of IPv4 address", "1.2.3.4/16", false},
		{"valid IPv4 address", "1.2.3.4", true},
		{"valid IPv6 address", "2001:db8::1", true},

// Is6 reports whether ip is an IPv6 address, including IPv4-mapped
// IPv6 addresses.
func (ip Addr) Is6() bool {
	return ip.z != z0 && ip.z != z4
}

// Unmap returns ip with any IPv4-mapped IPv6 address prefix removed.
//
// That is, if ip is an IPv6 address wrapping an IPv4 address, it
// returns the wrapped IPv4 address. Otherwise it returns ip unmodified.
func (ip Addr) Unmap() Addr {
	if ip.Is4In6() {
		ip.z = z4
	}