Backup Exec Desktop and Laptop Option ports
 
 
 
You may have special port requirements for Backup Exec if you use a firewall. Firewalls sometimes affect system communications between a media server and remote systems that reside outside the firewall environment.
See About using Backup Exec with firewalls.
The Backup Exec Desktop and Laptop Option (DLO) uses the following ports:
Table: Backup Exec Desktop and Laptop Option Ports
| Service or Process
 | Port
 | Port Type
 | 
| Server Message Block (SMB) communication
 | 135-139
 | TCP/UDP
 | 
| Server Message Block (SMB) communication without NETBIOS
 | 445
 | TCP/UDP
 | 
| SQL
 | 1434
 | TCP/UDP
 | 
| DLOAdminSvcu.exe (DLO admin service)
 | 3999 in listening mode
 | TCP/UDP
 | 
 
 
 Backup Exec Desktop and Laptop Option ports