Considerations for firewall usage at MetroCluster sites
If you are using a firewall at a MetroCluster site, you must ensure access for certain required ports.
The following table shows TCP/UDP port usage in an external firewall positioned between two MetroCluster sites.
| Traffic type | Port/services |
|---|---|
| Cluster peering | 11104 / TCP 11105 / TCP |
| ONTAP System Manager | 443 / TCP |
| MetroCluster IP intercluster LIFs | 65200 / TCP 10006 / TCP and UDP |
| Hardware assist | 4444 / TCP |
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