Setup microshift ipv6 singlestack cluster, created loadbalancer service with ETP and ITP 'cluster' on it. Sent traffic from buildvm to the external-ip, traffic was dropped. Meanwhile, sent traffic to endpoints passed, and traffic from testpod inside the cluster also passed.      

    4.17 

    always

    1. setup ipv6 singlestack microshift cluster 
    2. create loadbalancer svc on it.
$ oc get svc -o yaml
apiVersion: v1
items:
- apiVersion: v1
  kind: Service
  metadata:
    creationTimestamp: "2024-08-30T10:44:08Z"
    labels:
      name: test-service
    name: lbtest-etp-itp-cluster
    namespace: e2e-ushift-sdn-60968-nnnrjaz9
    resourceVersion: "103616"
    uid: 3d0fed90-0076-4fc7-b200-600f23f56dba
  spec:
    allocateLoadBalancerNodePorts: true
    clusterIP: fd02::a2e9
    clusterIPs:
    - fd02::a2e9
    externalTrafficPolicy: Cluster
    internalTrafficPolicy: Cluster
    ipFamilies:
    - IPv6
    ipFamilyPolicy: SingleStack
    ports:
    - name: http
      nodePort: 31721
      port: 27017
      protocol: TCP
      targetPort: 8080
    selector:
      name: hello-pod
    sessionAffinity: None
    type: LoadBalancer
  status:
    loadBalancer:
      ingress:
      - ip: 2620:52:0:1eb:a117:863e:a7d6:82cc
        ipMode: VIP
kind: List
metadata:
  resourceVersion: ""

$ oc get pods -o wide
NAME          READY   STATUS    RESTARTS   AGE   IP               NODE                   NOMINATED NODE   READINESS GATES
hello-pod-0   1/1     Running   0          30m   fd01:0:0:1::1c   microshift-dev.local   <none>           <none>
hello-pod-1   1/1     Running   0          29m   fd01:0:0:1::1d   microshift-dev.local   <none>           <none>
test-pod      1/1     Running   0          29m   fd01:0:0:1::1e   microshift-dev.local   <none>           <none>

$ oc get svc
NAME                     TYPE           CLUSTER-IP   EXTERNAL-IP                         PORT(S)           AGE
lbtest-etp-itp-cluster   LoadBalancer   fd02::cfb7   2620:52:0:1eb:a117:863e:a7d6:82cc   27017:30879/TCP   24s

    3. curl from buildvm (the host where the microshift installed) or node failed. Meanwhile, curl from test-pod to external ip passed.
curl from buildvm to endpoints also passed.

$ timeout 5 curl -k [2620:52:0:1eb:a117:863e:a7d6:82cc]:27017
$ oc rsh test-pod curl -k [2620:52:0:1eb:a117:863e:a7d6:82cc]:27017
Hello OpenShift!
$ curl -k [fd01:0:0:1::1c]:8080
Hello OpenShift!
[redhat@microshift-dev ~]$ curl -k [fd01:0:0:1::1d]:8080
Hello OpenShift!

    traffic from external to loadbalancer svc external-ip failed.

     traffic from external to loadbalancer svc external-ip should pass.