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You can add, update, or delete Netflow servers. The device offers Netflow, a network protocol, to monitor network bandwidth usage and traffic flow. Netflow records of source, destination and volume of traffic are exported to the Netflow server. The records help you identify the protocols, policies, interfaces and users consuming high bandwidth. Data analyzing tools like Open Source Data Analyzer and PRTG software can generate reports from the Netflow records.

Netflow configuration

  1. Enter the Netflow Server name.
  2. Enter the Netflow server IP/domain. You can enter IPv4 or IPv6 addresses.
  3. Enter the Netflow server port number (UDP port). Records are sent to the Netflow server over the specified port.

    Default: 2055


Traffic of only those firewall rules that have Log firewall traffic enabled is sent to the Netflow server.


You can configure up to five Netflow servers.


Sophos supports Netflow v5. You can export all the parameters of v5.