Snmp Traps - D-Link NetDefend DFL-210 User Manual

2.2.3. Event Message Distribution
To enable logging of all events with a severity greater than or equal to Notice to a Syslog server with IP address
195.11.22.55, follow the steps outlined below:
CLI
gw-world:/> add LogReceiverSyslog my_syslog IPAddress=195.11.22.55
Web Interface
1. Go to System > Log and Event Receivers > Add > Syslog Receiver
2. Specify a suitable name for the event receiver, for example my_syslog
3. Enter 195.11.22.55 as the IP Address
4. Select an appropriate facility from the Facility list - the facility name is commonly used as a filter parameter in
most syslog daemons.
5. Click OK
The system will now be logging all events with a severity greater than or equal to Notice to the syslog server at
195.11.22.55.

2.2.3.3. SNMP Traps

The SNMP protocol
Simple Network Management Protocol (SNMP) is a means for communicating between a Network
Management System (NMS) and a managed device. SNMP defines 3 types of messages: a Read
command for an NMS to examine a managed device, a Write command to alter the state of a
managed device and a Trap which is used by managed devices to send messages asynchronously to
an NMS about a change of state.
SNMP Traps in NetDefendOS
NetDefendOS takes the concept of an SNMP Trap one step further by allowing any event message
to be sent as an SNMP trap. This means that the administrator can set up SNMP Trap notification of
events that you consider significant for the operation of a network.
The file DFLNNN-TRAP.MIB (where NNN indicates the model number of the firewall) is provided
by D-Link and defines the SNMP objects and data types that are used to describe an SNMP Trap
received from NetDefendOS.
For each D-Link Firewall model there is one generic trap object called DLNNNosGenericTrap, that
is used for all traps (where NNN indicates the model number). This object includes the following
parameters:
• System - The system generating the trap
• Severity - Severity of the message
Note: Syslog server configuration
The syslog server may have to be configured to receive log messages from
NetDefendOS. Please see the documentation for your specific Syslog server software
in order to correctly configure it.
Note
There is a different MIB file for each model of D-Link Firewall. Make sure that the
correct file is used.
Chapter 2. Management and Maintenance
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