Hirschmann HiSecOS EAGLE30 - Deep Packet Inspection Modbus Enforcer

Network Security > DPI > Modbus Enforcer
Network Security
160
RM GUI HiSecOS EAGLE20/30
Release 3.0 09/2015
Network Security > DPI > Modbus Enforcer
4.9 Deep Packet Inspection
Modbus Enforcer
This dialog allows you to specify the "Modbus Enforcer" settings and define
Modbus-specific rules. The rules specify Modbus function codes and register
or coil addresses. The function code in the Modbus protocol specifies the
purpose of the data transfer. The device blocks data packets that violate the
specified rules. If an error is detected, the device terminates the Modbus or
TCP connection on request. The predefined Modbus function code lists and
the function code generator support you when defining the Modbus function
codes.
 Information
Parameters Meaning
Uncommited
changes present
Displays whether the DPI Modbus Enforcer rules applied to the data
stream differ from the rules saved in the device.
Possible values:
 unmarked
The device applies the saved DPI Modbus Enforcer rules to the data
stream.
 marked
At least one of the DPI Modbus Enforcer rules saved in the device
contains modified settings.
When you click the "Commit Changes" button, the device applies the
specified DPI Modbus Enforcer rules and refreshes the display in the
"Function Code" column.