Cisco Cisco Web Security Appliance S690 Guida Utente

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.

Failure condition alarm traps represent a critical failure of the individual component, but may not cause 
a total system failure. 

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.

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.

47C 

0 RPMs 

Status Change

Status Change

Status Change

example.com> snmpconfig

Current SNMP settings:

SNMP Disabled.