Cisco Cisco Email Security Appliance C190 Guía Del Usuario
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Cisco AsyncOS 8.5 for Email User Guide
Chapter 32 Managing and Monitoring Using the CLI
SNMP Monitoring
SNMP Traps
SNMP provides the ability to send traps, or notifications, to advise an administration application (an
SNMP management console, typically) 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 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
SNMP management console, typically) 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 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
snmp-monitor.example.com
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 Cisco appliance.
will receive the SNMP traps from the Cisco 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.
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 the following 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
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
snmp-monitor.example.com
is entered.
Finally, system location and contact information is entered.
mail3.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. Data 1 (192.168.1.1/24: mail3.example.com)
2. Data 2 (192.168.2.1/24: mail3.example.com)
3. Management (192.168.44.44/24: mail3.example.com)
[1]>