Configuring Passive Monitor Listeners
A Passive Monitor Listeners listens for an
event to occur and then notifies WhatsUp Gold. This lets you get
notification of an event when it occurs, rather than polling for
all event types. The Passive Monitor Listener is solely responsible
for how it monitors its events. This means that the server could
listen for network traffic or application specific events.
WhatsUp Gold is installed with three Passive
- . A trap is an unsolicited SNMP message
(packet) sent from a device to indicate a change in status, such as
a router indicating one of its interfaces went down or a printer
indicating that it is out of paper.
- . A Syslog monitor is used to examine Syslog
messages forwarded from other devices for a specific record and/or
specific text within a record. Usually Syslog messages are
forwarded from the Syslog on a system that runs UNIX, but they can
also come from non-UNIX devices as well.
A Syslog message consists of a priority and a text payload. The
text message could contain anything you want permanently logged,
such as a device failure, or a failed attempt to log in to the
system. The only way to identify different type of syslog messages
is to configure a regular expression in the passive monitor
- . This monitor can capture any Windows Event
Log entry, such as a service start or stop, if there was a logon
failure recorded, and other log entries.
Before you can configure Passive Monitors, you
must configure listeners.
To configure a listener:
- In the WhatsUp Gold console, select
. The Program Options dialog opens.
If the Windows SNMP Trap Service (located in > ) is running on the WhatsUp Gold
console PC, you should stop the service. This is a precaution to
prevent any conflict with the WhatsUp passive monitor
- Click . The Passive Monitor Listeners display
in a list.
- Select the listener you want to configure,
then click . The
configuration dialog opens.
- Select the appropriate settings based on the
listener you are configuring. For more information about the
Passive Monitor Listener options, refer to the Help.
- Click to save changes.