2.15. Network interfaces

The PSM hardware has five network interfaces: three physical interfaces for handling traffic, the HA interface for communicating with other nodes in a High Availability cluster, and the IPMI interface. The T10 hardware has two additional network interfaces available: the SFP+ interfaces labeled A and B. For details on hardware installation, see Chapter 3, Balabit’s Privileged Session Management, Shell Control Box Hardware Installation Guide in The Balabit’s Privileged Session Management, Shell Control Box 5 F3 Installation Guide.

You can assign any number of logical interfaces (alias IP addresses and netmasks) to a physical interface, and each logical interface can have its own VLAN ID. For more information on managing logical interfaces, see Procedure 4.3.2, Managing logical interfaces.

The routing rules determine which interface is used for transferring remote backups and syslog messages of PSM.


It is recommended to direct backups, syslog and SNMP messages, and e-mail alerts to a dedicated interface. For details, see Procedure 4.3.4, Configuring the routing table.

The HA interface is an interface reserved for communication between the nodes of PSM clusters. The HA interface uses the Ethernet connector labeled as 4 (or HA). For details on high availability, see Section 2.16, High Availability support in PSM.

In case of T10 hardware, the SFP+ interfaces are available for both proxy traffic and for local services. This means that these interfaces can be used for the same purposes as the other 3 physical interfaces.

The Intelligent Platform Management Interface (IPMI) interface allows system administrators to monitor system health and to manage PSM events remotely. IPMI operates independently of the operating system of PSM.