Address:         "10.1.0.0",
		ServiceAccounts: []string{},
		ClusterID:       "cluster-1",
	})
	HelloInstanceV0 := MakeIP(HelloService, 0)

	if HelloInstanceV0 != "10.1.1.0" {
		t.Fatalf("MakeIP() can not handle ip4 address.")
	}

	HelloService1 := MakeService(ServiceArgs{
		Hostname:        "hello.default.svc.cluster.local",
		Address:         "asa",
		ServiceAccounts: []string{},
		ClusterID:       "cluster-1",
	})

	// darwin, kernel version 11.3.0
	//	net.inet6.ip6.v6only=0 (overridable by sysctl or IPV6_V6ONLY option)
	// freebsd, kernel version 8.2
	//	net.inet6.ip6.v6only=1 (overridable by sysctl or IPV6_V6ONLY option)
	// linux, kernel version 3.0.0
	//	net.ipv6.bindv6only=0 (overridable by sysctl or IPV6_V6ONLY option)
	// openbsd, kernel version 5.0
	//	net.inet6.ip6.v6only=1 (overriding is prohibited)

Ben Leggett <******@****.***> 1710179183 -0400

		// Single number. Some parsers accept this as an IPv4 address in
		// big-endian uint32 form, but we don't.
		"1234",
		// IPv4 with a zone specifier
		"1.2.3.4%eth0",
		// IPv4 field must have at least one digit
		".1.2.3",
		"1.2.3.",
		"1..2.3",
		// IPv4 address too long
		"1.2.3.4.5",
		// IPv4 in dotted octal form
		"0300.0250.0214.0377",
		// IPv4 in dotted hex form
		"0xc0.0xa8.0x8c.0xff",

	c.WriteToUDP(wb, nil)
	c.WriteMsgUDP(wb, nil, nil)
}

func TestIPConnSpecificMethods(t *testing.T) {
	if !testableNetwork("ip4") {
		t.Skip("skipping: ip4 not supported")
	}

	la, err := ResolveIPAddr("ip4", "127.0.0.1")
	if err != nil {
		t.Fatal(err)
	}
	c, err := ListenIP("ip4:icmp", la)
	if testenv.SyscallIsNotSupported(err) {
		// May be inside a container that disallows creating a socket or

		{"gatewaymiddle", gatewaymiddle, 1, &ipv4Route, ""},
		{"gatewaylast", gatewaylast, 1, &ipv4Route, ""},
		{"no routes", nothing, 0, nil, ""},
		{"badDestination", badDestination, 0, nil, "invalid IPv4"},
		{"badGateway", badGateway, 0, nil, "invalid IPv4"},
		{"route_Invalidhex", route_Invalidhex, 0, nil, "odd length hex string"},
		{"no default routes", noInternetConnection, 0, nil, ""},
	}
	for _, tc := range testCases {

		add rule ip6 kube-proxy firewall-check ip6 daddr . meta l4proto . th dport vmap @firewall-ips
		add rule ip6 kube-proxy mark-for-masquerade mark set mark or 0x4000
		add rule ip6 kube-proxy masquerading mark and 0x4000 == 0 return
		add rule ip6 kube-proxy masquerading mark set mark xor 0x4000
		add rule ip6 kube-proxy masquerading masquerade fully-random
		add rule ip6 kube-proxy nat-output jump services

	if err != nil {
		return "", err
	}
	r := newResolver(cfg.timeout, req.protocol, req.dnsServer)
	nt := func() string {
		switch req.query {
		case "A":
			return "ip4"
		case "AAAA":
			return "ip6"
		default:
			return "ip"
		}
	}()
	ctx, cancel := context.WithTimeout(ctx, cfg.timeout)
	defer cancel()

	start := time.Now()
	ips, err := r.LookupIP(ctx, nt, req.hostname)

		addrList{&TCPAddr{IP: IPv6loopback, Port: 5682}},
		addrList{&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682}},
		nil,
	},
	{
		nil,
		[]IPAddr{
			{IP: IPv4(127, 0, 0, 1)},
			{IP: IPv4(192, 168, 0, 1)},
		},
		testInetaddr,
		&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
		addrList{
			&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
			&TCPAddr{IP: IPv4(192, 168, 0, 1), Port: 5682},
		},
		nil,
		nil,
	},
	{

			},
			want: []string{
				"kernel.shm_rmid_forced",
				"net.ipv4.ip_local_port_range",
				"net.ipv4.tcp_syncookies",
				"net.ipv4.ping_group_range",
				"net.ipv4.ip_unprivileged_port_start",
				"net.ipv4.ip_local_reserved_ports",
				"net.ipv4.tcp_keepalive_time",
				"net.ipv4.tcp_fin_timeout",
				"net.ipv4.tcp_keepalive_intvl",
				"net.ipv4.tcp_keepalive_probes",
			},
		},
	}
	for _, tt := range tests {