# Firewall Port Requirements

The following ports must be opened for Hyperscale MediaAgents to communicate through a firewall:

Port Protocol | Port Number | Description
--- | --- | ---
TCP | 8400 8401 8403 | Used by Commvault Services. For more information, see TCP Ports Used for Services.
| 9090 9091 | Used by daemon internal to HyperScale to communicate with the other nodes in the block.
| 24007 | Glusterd port used to connect to the other HyperScale MediaAgents.
| 24008 | Glusterd RDMA port management.
| 24009 | Glustereventsd port.
| 8800-8900 | Other services. Must be reserved using bind-to-open ports option. For more information on binding ports, see Binding Services to Open Ports.
| 49152-49176 | HyperScale brick ports.
UDP | 5353 | Used by avahi-daemon to read the message exported by avahi-daemon on HyperScale nodes in a block.

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