212
C
HAPTER
13: M
ONITORING
S
YSTEM
E
VENTS
SNMP Traps
You can configure the Webcache to automatically generate Simple
Network Management Protocol (SNMP) traps when certain significant
system events occur. An SNMP trap is a message generated by the
Webcache in response to a particular event. It is sent to a specified
network management station in your network which receives and filters
it. You can configure the network management station to log the
generated traps, filter out the traps that you are not interested in and
issue event notifications. The structure and content of the SNMP traps are
defined in the Management Information Bases (MIBs) that the Webcache
supports (standard MIB and Webcache MIB traps).
All of the SNMP traps that the Webcache automatically generates are
shown in
“Automatic System Events”
on
page 214
.
Configuring SNMP
Traps
To configure SNMP Traps using the Web interface:
1
Log in to the Web interface.
2
Click
Device
on the Toolbar.
3
Select
System
>
Management
>
Events
>
SNMP Traps
in the Navigation
Tree. The SNMP Trap Destination Setup screen is displayed.
4
Enter the IP address of the network management station in your network
that will handle the SNMP traps in the
IP Address of Management Station
field.
You can send a test SNMP trap to the network management station
immediately by clicking
Send Now
. You may want to do this to test that
the SNMP Trap settings are correct.
Configuring SNMP
Community Strings
SNMP community strings authenticate access to the Management
Information Bases (MIBs) in the Webcache. Community strings essentially
function as “passwords” embedded in every SNMP network packet. The
community string in the packet must match one of the two community
strings configured in the Webcache for the message to be processed
successfully. If the community string is correct, the Webcache performs
the requested operation. If the community string is incorrect, the
Webcache discards the request and does not respond.
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Summary of Contents for SuperStack 3 WEBCACHE 1000
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