func getLinkWithDestinationOf(ip string) (netlink.Link, error) {
	routes, err := netlink.RouteListFiltered(
		netlink.FAMILY_V4,
		&netlink.Route{Dst: &net.IPNet{IP: net.ParseIP(ip), Mask: net.CIDRMask(32, 32)}},
		netlink.RT_FILTER_DST)
	if err != nil {
		return nil, err
	}

	if len(routes) == 0 {
		return nil, fmt.Errorf("no routes found for %s", ip)
	}

	linkIndex := routes[0].LinkIndex
	return netlink.LinkByIndex(linkIndex)
}

        "ips": [
            {
                "version": "4",
                "address": "10.0.0.2/24",
                "gateway": "10.0.0.1",
                "interface": 0
            }
        ],
        "routes": []

    },
    "log_level": "debug",
    "cni_event_address": "%s",
    "ambient_enabled": %t,
    "kubernetes": {
        "k8s_api_root": "APIRoot",
        "kubeconfig": "testK8sConfig",

  # Retrieve route summary without using Kubernetes API
  ssh <user@hostname> 'curl localhost:15000/config_dump' > envoy-config.json
  istioctl proxy-config routes --file envoy-config.json
`,
		Aliases: []string{"routes", "r"},
		Args: func(cmd *cobra.Command, args []string) error {
			if (len(args) == 1) != (configDumpFile == "") {
				cmd.Println(cmd.UsageString())

	endpoints configTypeURL = "type.googleapis.com/envoy.admin.v3.EndpointsConfigDump"
	clusters  configTypeURL = "type.googleapis.com/envoy.admin.v3.ClustersConfigDump"
	routes    configTypeURL = "type.googleapis.com/envoy.admin.v3.RoutesConfigDump"
	secrets   configTypeURL = "type.googleapis.com/envoy.admin.v3.SecretsConfigDump"
	ecds      configTypeURL = "type.googleapis.com/envoy.admin.v3.EcdsConfigDump"

func forEachLoopbackRoute(cfg *Config, f func(*netlink.Route) error) error {
	loopbackLink, err := netlink.LinkByName("lo")
	if err != nil {
		return fmt.Errorf("failed to find 'lo' link: %v", err)
	}

	// Set up netlink routes for localhost
	cidrs := []string{"0.0.0.0/0"}
	if cfg.EnableIPv6 {
		cidrs = append(cidrs, "0::0/0")
	}
	for _, fullCIDR := range cidrs {
		_, localhostDst, err := net.ParseCIDR(fullCIDR)
		if err != nil {

			expectedString:   "unrecognized logger name: xxx",
			wantException:    true,
		},
		{ // routes invalid
			args:           strings.Split("routes invalid", " "),
			expectedString: "unable to retrieve Pod: pods \"invalid\" not found",
			wantException:  true, // "istioctl proxy-config routes invalid" should fail
		},
		{ // bootstrap invalid
			args:           strings.Split("bootstrap invalid", " "),

		if len(vs.Spec.Http) > 0 {
			fmt.Fprintf(writer, "%sWARNING: No destinations match pod subsets (checked %d HTTP routes)\n",
				printSpaces(initPrintNum+printLevel1), len(vs.Spec.Http))
		}
		if len(vs.Spec.Tcp) > 0 {
			fmt.Fprintf(writer, "%sWARNING: No destinations match pod subsets (checked %d TCP routes)\n",
				printSpaces(initPrintNum+printLevel1), len(vs.Spec.Tcp))
		}
		for _, mismatch := range mismatchNotes {

		if err != nil {
			return err
		}
		istiodBytes.WriteString(istiod)
	}
	diff := difflib.UnifiedDiff{
		FromFile: "Istiod Routes",
		A:        difflib.SplitLines(istiodBytes.String()),
		ToFile:   "Envoy Routes",
		B:        difflib.SplitLines(envoyBytes.String()),
		Context:  c.context,
	}
	text, err := difflib.GetUnifiedDiffString(diff)
	if err != nil {
		return err
	}

		t.Fatalf("Failed to create Comparator: %v", err)
	}
	err = comparator.Diff()
	if err != nil {
		t.Errorf("Unexpected error during diff: %v", err)
	}

	expected := []string{"Clusters Match", "Listeners Match", "Routes Match"}
	for _, exp := range expected {
		if !bytes.Contains(outputBuffer.Bytes(), []byte(exp)) {
			t.Errorf("Expected %s, but it was not found", exp)
		}
	}
}

		ip, _ := netip.AddrFromSlice(configuredPodIPs.Address.IP)
		// We ignore the mask of the IPNet - it's fine if the IPNet defines
		// a block grant of addresses, we just need one for checking routes.
		podIps = append(podIps, ip)
	}
	// Note that we use the IP info from the CNI plugin here - the Pod struct as reported by K8S doesn't have this info