Cisco Cisco Web Security Appliance S690 User Guide

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18-11
AsyncOS 8.7 for Cisco Web Security Appliances User Guide
 
Chapter 18      Generate Reports to Monitor End-user Activity
  SNMP Monitoring
Hardware Traps
Status change traps are sent when the status changes. Fan Failure and high temperature traps are sent 
every 5 seconds. The other traps are failure condition alarm traps - they are sent once when the state 
changes (healthy to failure). Temperatures within 10 per cent of the critical value may be a cause for 
concern.
Note
Failure condition alarm traps represent a critical failure of the individual component, but may not cause 
a total system failure. 
SNMP Traps
SNMP provides the ability to send traps, or notifications, to advise an administration application when one 
or more conditions have been met. Traps are network packets that contain data relating to a component of 
the system sending the trap. Traps are generated when a condition has been met on the SNMP agent (in this 
case, the Cisco Web Security Appliance appliance). After the condition has been met, the SNMP agent then 
forms an SNMP packet and sends it over port 162, the standard SNMP trap port. In the example below, the 
trap target of 
10.1.1.29
 and the Trap Community string are entered. This is the host running the SNMP 
management console software that will receive the SNMP traps from the appliance. 
You can configure SNMP traps (enable or disable specific traps) when you enable SNMP for an 
interface. To specify multiple trap targets: when prompted for the trap target, you may enter up to 10 
comma separated IP addresses.
CLI Example
In this example, the 
snmpconfig
 command is used to enable SNMP on the “PublicNet” interface on port 
161. A passphrase for version 3 is entered and then re-entered for confirmation. The system is configured 
to service version 1 and 2 requests, and the community string 
public
 is entered for GET requests from 
those versions 1 and 2. The trap target of 
10.1.1.29
 is entered. Finally, system location and contact 
information is entered.
example.com> snmpconfig
Current SNMP settings:
SNMP Disabled.
Choose the operation you want to perform:
- SETUP - Configure SNMP.
[]> setup
Do you want to enable SNMP? [N]> y
Please choose an IP interface for SNMP requests.
1. Management (192.168.1.1/24: wsa01-vmw1-tpub.qa)
Model
High Temp 
(Ambient)
Fan Failure
Power Supply
RAID
Link
S160/S350/S360/S650
/S660 
47C 
0 RPMs 
Status Change
Status Change
Status Change