The following tables describe network ports that must be opened in your network firewall or web filtering services to ensure proper communication of the Barracuda Backup appliance with backup infrastructure components.
Table 1. Barracuda Backup Connections
| From | To | Protocol | Port | Notes |
|---|---|---|---|---|
| Barracuda Backup Device | Barracuda Networks Data Centers | TCP/UDP | 22 | Used for Barracuda Networks support tunnel (described in the Technical Support article). |
| Barracuda Backup Device | Barracuda Networks Data Centers | HTTP/TCP/UDP | 80 | Used for activation and connection to local user interface. |
| Barracuda Backup Device | Barracuda Networks Data Centers | TCP/UDP | 123 | Used for time sync with Barracuda Networks NTP server(s). For example, ntp.barracudacentral.com |
| Barracuda Backup Device | Barracuda Networks Data Centers | HTTP/TCP/UDP | 443 | Used for activation and connection to local user interface. |
| Barracuda Backup Device | Barracuda Networks Data Centers | TCP/UDP | 1194 | OpenVPN port used to manage device from Barracuda Cloud Control. |
| Barracuda Backup Device | Barracuda Networks Backup Agent | TCP/UDP | 5120 | Used for communication with Barracuda Backup Agent service. |
| Barracuda Backup Device | Replication Targets (Barracuda Cloud, Amazon Web Services, Barracuda Backup device) | TCP/UDP | 5121-5129 | Used for offsite data replication. |
Table 2. Virtual Infrastructure
For a list of additional ports specific to VMware, refer to Understanding Which Ports to Open for VMware Accessibility.
| From | To | Protocol | Port | Notes |
|---|---|---|---|---|
| Barracuda Backup Device | vCenter Server | HTTPS TCP | 443 | Default port used for connections to vCenter Server. |
| Barracuda Backup Device | vCenter Server | HTTPS TCP | 10443 | Used for communication with vCenter Server. |
| Barracuda Backup Device | ESX(i) Server | HTTPS TCP | 443 | Default port used for connections to ESX(i) host. Not required if vCenter connection is used. |
| Barracuda Backup Device | ESX(i) Server | TCP | 902 | Used for data transfer to ESX(i) host. |
| Barracuda Backup Device | ESX(i) Server | TCP | 22 | Used as a control channel. |
Data Transfer IP Ranges
See Barracuda Backup Data Transfer IP Ranges for a list of IP addresses used by the Barracuda Backup appliance. Firewall and/or web filtering modifications must be made for outbound traffic only. The Barracuda Backup appliance does not require that you open any inbound ports since the appliance initiates the connection to the Barracuda Cloud.