Get SNMP Variable
Applies To: Opalis 6.3
The Get SNMP Variable object will query a network device for the value of variable that is assigned to the Management Information Base address that you specify.
You can use the Get SNMP Variable object to retrieve information about a network device to determine if an administrator needs to be notified.
To configure SNMP version 3 security in the client, on the Options menu click SNMP.
Configuring the Get SNMP Variable Object
To configure the Get SNMP Variable object you need to know the IP address of the device as well as the port number, SNMP MIB, SNMP Version, and the credentials required to retrieve the variable. The Opalis OIS.mib file is located in the Support\SNMP directory.
To configure the Get SNMP Variable object
From the Objects pane, drag a Get SNMP Variable object to the active Policy.
Double-click the Get SNMP Variable object icon. The Properties dialog opens.
For information about the settings on the Details tab and the Advanced tab, see the following tables.
For information about the settings on the General tab, the Run Behavior tab, and other tabs if applicable, see Common Tabs.
Details Tab
Element | Configuration Instructions |
---|---|
Name or IP address |
Type the name of the computer or IP address of the device hosting the MIB variable. |
Port |
Type port used to communicate with the network device. |
MIB |
Type the MIB identifier of the variable whose value you want to retrieve. |
SNMP Version |
Select the SNMP version to use when connecting to the network device. |
Community string/User name |
If you selected the SNMPv1 or SNMPv2c option from the SNMP Version drop-down list, the Community string box appears. Type the community string that will be used to authenticate against the network device. The community should have rights of Read only or higher. If you selected SNMPv3 option from the SNMP Version drop-down list, the User name and Context boxes appear. Specify the name of the user whose credentials will be used to authenticate the operator. The list of available users is found on the Options > SNMP menu. This element is case-sensitive. |
Context |
Type the context that the user specified in the User name box belongs to. You can only specify this option when SNMPv3 is selected from the SNMP Version drop-down list. |
AdvancedTab
Element | Configuration Instructions |
---|---|
Timeout |
Type the number of seconds the Get SNMP Variable will wait for a response from the network device. If the operation times out, then it will attempt to retry the action. The number of retries is specified in the Retry box. |
Retry |
Type the number of times to attempt to retrieve the SNMP variable |
Get SNMP Variable Published Data
The following table lists the element names and descriptions for the data published by this object. For information about the published data elements that are common to all objects, see Policy Workflow Rules.
Element Name | Description |
---|---|
MIB identifier |
The MIB identifier of the variable that was retrieved. |
MIB value |
The value of the variable that was retrieved. |
Device IP address |
The IP address of the device where the variable was retrieved. |
Timeout |
The timeout period specified in the Get SNMP variable operator interface. |
Retry attempts |
The number of attempts made to retrieve the SNMP Variable. |
SNMP Version |
The SNMP version that was specified to retrieve this variable. This value can be SNMPv1, SNMPv2c, or SNMPv3. |
Community string |
The community string that was used to authenticate against this SNMP variable. |
Request port |
The port used to communicate to the SNMP device. |