Can't access my nginx pod from an external IP

Networking
1

I am learning Istio and trying to access the nginx welcome page using istio routing when client has a specific header. I have the service below:

$ kubectl -n istio-system get svc istio-ingressgateway-can
NAME                         TYPE           CLUSTER-IP      EXTERNAL-IP       PORT(S)                                                    AGE
istio-ingressgateway-can     LoadBalancer   10.23.105.173   148.187.106.66    80:30017/TCP,443:32269/TCP                                 164d

And

$ kubectl -n istio-system describe svc istio-ingressgateway-can
Name:                     istio-ingressgateway-can
Namespace:                istio-system
Labels:                   app=istio-ingressgateway-customer-user
                          app.kubernetes.io/managed-by=Helm
                          istio=ingressgateway-customer-user
                          peerauthentication=ingressgateway
                          release=cray-istio
Annotations:              external-dns.alpha.kubernetes.io/hostname: api.can.alps.cscs.ch,auth.can.alps.cscs.ch
                          meta.helm.sh/release-name: cray-istio
                          meta.helm.sh/release-namespace: istio-system
                          metallb.universe.tf/address-pool: customer-access
Selector:                 app=istio-ingressgateway-customer-user,istio=ingressgateway-customer-user
Type:                     LoadBalancer
IP Families:              <none>
IP:                       10.23.105.173
IPs:                      10.23.105.173
LoadBalancer Ingress:     148.187.106.66
Port:                     http2  80/TCP
TargetPort:               80/TCP
NodePort:                 http2  30017/TCP
Endpoints:                10.38.128.107:80,10.38.128.74:80,10.40.128.34:80
Port:                     https  443/TCP
TargetPort:               443/TCP
NodePort:                 https  32269/TCP
Endpoints:                10.38.128.107:443,10.38.128.74:443,10.40.128.34:443
Session Affinity:         None
External Traffic Policy:  Cluster
Events:                   <none>
And this gateway
kubectl -n services describe gateway customer-user-gateway
Name:         customer-user-gateway
Namespace:    services
Labels:       app=istio-ingressgateway
              app.kubernetes.io/managed-by=Helm
              gateway=customer-user-gateway
Annotations:  meta.helm.sh/release-name: cray-istio
              meta.helm.sh/release-namespace: istio-system
...
Spec:
  Selector:
    Istio:  ingressgateway-customer-user
  Servers:
    Hosts:
      *
    Port:
      Name:      http
      Number:    80
      Protocol:  HTTP
    Hosts:
      *
    Port:
      Name:      https-443
      Number:    443
      Protocol:  HTTPS
    Tls:
      Credential Name:  ingress-gateway-cert
      Mode:             SIMPLE

I also have the following deployment, virtual service and service

$ kubectl -n nginx-proxy apply -f - <<EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-test
  labels: 
    app: nginx-test
  namespace: nginx-proxy
spec:
  replicas: 1
  strategy:
    type: Recreate
    rollingUpdate: null
  selector:
    matchLabels:
      app: nginx-test
  template:
    metadata:
      labels:
        app: nginx-test
    spec:
      containers:
      - name: nginx-test
        image: cache/nginx:1.18.0
        ports:
        - containerPort: 80
        - containerPort: 443
EOF

$ kubectl apply -f - <<EOF 
apiVersion: v1
kind: Service
metadata:
  name: nginx-test
  namespace: nginx-proxy
spec:
  selector:
    app: nginx-test
  ports:
  - port: 80
    protocol: TCP
EOF

$ kubectl -n nginx-proxy apply -f - <<EOF
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: nginx-test
spec:
  hosts:
  - "*"
  gateways: 
  - customer-user-gateway         
  http:
  - match:
    - headers:
        User-Agent:
          prefix: nginx           
    route:
    - destination:
        host: nginx-test.nginx-proxy  
        port:
          number: 80
EOF

I am trying to access the nginx pod through istio-ingressgateway-can external IP. But so far I have been unsuccessful.
My issue is that the curl command gets stuck when running the command below:

curl -I -H 'User-Agent: nginx-test' -vvvv http://148.187.106.66:30017
*   Trying 148.187.106.66:30017...
* TCP_NODELAY set
* Connected to 148.187.106.66 (148.187.106.66) port 30017 (#0)
> HEAD / HTTP/1.1
> Host: 148.187.106.66:30017
> Accept: */*
> User-Agent: nginx-test
>

I would like to ask for help to understand what I am doing wrong.