When two hcp clusters are hosted on the same cluster, one hcp cluster cannot reach to api address of the other hcp cluster.

From one hcp cluster

# nc -zv 52.118.43.174 6443
Ncat: Version 7.92 ( https://nmap.org/ncat )
Ncat: TIMEOUT.

where https://52.118.43.174:6443 is the other hcp cluster's api address.

This works when the other hcp cluster is on a different host.

OCP version 4.18.0-ec.3 on the hosting cluster and hostedclusters
OpenShift Virtualization 4.18.0-225
MetalLB operator 4.18.0-202411221408
Multicluster engine for Kubernetes 2.8.0-201 
Openshift Data Foundation 4.18.0

    3/3

    1. Create two KubeVirt HCP clusters (example names hcp418-p1hub and hcp418-p1c1).
    2. From one node of the hcp cluster hcp418-p1hub, try to access the cluster api endpoint of the other hcp cluster hcp418-p1c1.

  From one node of the cluster hcp418-p1hub
  # nc -zv 52.118.43.174 6443
   Ncat: Version 7.92 ( https://nmap.org/ncat )
   Ncat: TIMEOUT.

where https://52.118.43.174:6443 is the other hcp cluster's (hcp418-p1c1) api address.

    Connection timeout

    Should be able to establish connection between the two hcp clusters

    The requirement is to use one hcp cluster as an ACM hub and import the host and the other hcp clusters in the ACM hub. In the hcp cluster used for ACM hub , the import of the other hcp cluster is failing with error 

message: 'Try to import managed cluster, retry times: 1/2, error: [Get "https://52.118.43.174:6443/apis/apiextensions.k8s.io/v1beta1/customresourcedefinitions/klusterlets.operator.open-cluster-management.io": dial tcp 52.118.43.174:6443: i/o timeout

The host does not have ACM but MCE only.
Logs will be updated shortly