Solution #00004844
Scope:
This solution applies to all Barracuda Phone Systems.
Answer:
The table below lists the common port usage information for the Barracuda Phone System. It is necessary to assign the appropriate rules on your firewall to allow this traffic if you want to use the related services.
Port Direction Protocol Description / Use
- 20-21 In/Out TCP In/Out FTP Provisioning / Out - FTP backup
22 Out TCP Technical Support
25 Out TCP Email Notification and Alerts
53 Out UDP DNS (Domain Name Server)
80 In/Out TCP Firmware and Energize updates
443 Out TCP Firmware and Energize updates
3478 Out TCP/UDP STUN
- 587 Out TCP Alternate Outbound Email
5060-5070 In/Out TCP/UDP SIP Inbound/Outbound
16384-32768 In/Out UDP RTP Media Ports
123 Out UDP NTP (Network Time Protocol)
Link to this page:
https://campus.barracuda.com/solution/50160000000IFukAAG