if len(adscon.GetHTTPListeners()) != 3 {
			t.Error("HTTP listeners, expecting 3 got", len(adscon.GetHTTPListeners()), xdstest.MapKeys(adscon.GetHTTPListeners()))
		}

		// s1tcp:2000 outbound, bind=true (to reach other instances of the service)
		// s1:5005 outbound, bind=true
		// :443 - https external, bind=false
		// 10.11.0.1_7070, bind=true -> inbound|2000|s1 - on port 7070, fwd to 37070
		// virtual

	// Description: Address for the ingress gateway on the external control plane is not valid
	InvalidExternalControlPlaneConfig = diag.NewMessageType(diag.Warning, "IST0163", "The hostname (%s) that was provided for the webhook (%s) to reach the ingress gateway on the external control plane cluster %s. Traffic may not flow properly.")

	// ExternalControlPlaneAddressIsNotAHostname defines a diag.MessageType for message "ExternalControlPlaneAddressIsNotAHostname".

If it is allowed, we will forward to the target destination.

#### Hairpin

In the case that the destination has a waypoint, that waypoint must have been bypassed to reach the inbound passthrough codepath.
How we handle this is [under discussion](https://docs.google.com/document/d/1uM1c3zzoehiijh1ZpZuJ1-SzuVVupenv8r5yuCaFshs/edit#heading=h.dwbqvwmg6ud3).

### Inbound

  // Except values will be rejected if they are outside the cidr range
  // +optional
  repeated string except = 2;
}

// Ingress is a collection of rules that allow inbound connections to reach the
// endpoints defined by a backend. An Ingress can be configured to give services
// externally-reachable urls, load balance traffic, terminate SSL, offer name
// based virtual hosting etc.
message Ingress {

  // Except values will be rejected if they are outside the CIDR range
  // +optional
  repeated string except = 2;
}

// Ingress is a collection of rules that allow inbound connections to reach the
// endpoints defined by a backend. An Ingress can be configured to give services
// externally-reachable urls, load balance traffic, terminate SSL, offer name
// based virtual hosting etc.

										// on where we call service B from, we'll reach a different set of endpoints.
										// If we're calling from exportCluster, it will be the same as cluster-local
										// (i.e. we'll only reach endpoints in exportCluster). From all other clusters,
										// we should reach endpoints in that cluster AND exportCluster.
										expectedClusters = cluster.Clusters{exportCluster}

    code: IST0163
    level: Warning
    description: "Address for the ingress gateway on the external control plane is not valid"
    template: "The hostname (%s) that was provided for the webhook (%s) to reach the ingress gateway on the external control plane cluster %s. Traffic may not flow properly."
    args:
      - name: hostname
        type: string
      - name: webhook
        type: string
      - name: msg

		oldNs, oldClient, oldServer := sanitycheck.SetupTrafficTest(t, t, previousRevision)
		sanitycheck.RunTrafficTestClientServer(t, oldClient, oldServer)

		// install the charts from this branch with revision set to "latest"
		// helm upgrade istio-base ../manifests/charts/base --namespace istio-system -f values.yaml
		// helm install istiod-latest ../manifests/charts/istio-control/istio-discovery -f values.yaml

// or '#'.
message HTTPIngressRuleValue {
  // paths is a collection of paths that map requests to backends.
  repeated HTTPIngressPath paths = 1;
}

// Ingress is a collection of rules that allow inbound connections to reach the
// endpoints defined by a backend. An Ingress can be configured to give services
// externally-reachable urls, load balance traffic, terminate SSL, offer name
// based virtual hosting etc.
message Ingress {

	var req *model.PushRequest

	free := true
	freeCh := make(chan struct{}, 1)

	push := func(req *model.PushRequest, debouncedEvents int, startDebounce time.Time) {
		pushFn(req)
		updateSent.Add(int64(debouncedEvents))
		debounceTime.Record(time.Since(startDebounce).Seconds())
		freeCh <- struct{}{}
	}

	pushWorker := func() {
		eventDelay := time.Since(startDebounce)