Troubleshooting Signature-Based Firewalls - Veeam Software
https://www.veeam.com/kb214012.07.2016 · Then, create exclusions for Veeam data traffic. In most cases for Veeam Backup & Replication, Veeam Agent for Windows, and Veeam Agent for Linux, the relevant traffic will be between servers when data is transferred over the transport ports of 2500-3300. This range can be configured for each managed server in the backup infrastructure settings.
Used Ports - Veeam Agent Management Guide
helpcenter.veeam.com › agents › used_portsOct 25, 2021 · Default port used for communication with the Veeam Agent for Microsoft Windows Service. If port 6184 is already in use, Veeam Agent for Microsoft Windows Service will try to use the next port number. TCP UDP. 135, 137 to 139, 445, 6160, 11731. Default ports used for communication with the Veeam Installer Service. Port 135 is used for WMI queries.