Get SNMP Variable

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.

To configure SNMP version 3 security, use the SNMP Options in the Client.

How it is used

Use the Get SNMP Variable object to retrieve information about a network device to determine if an administrator needs to be notified.

Configuration

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.

Note: The Opalis MIB file is located in the Support/SNMP directory on the installation CD.

Details Tab

 

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. Note: The Opalis MIB file is located in the Support/SNMP directory on the installation CD.
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 (above), the Community string field 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 (above), the User name and Context fields appear. Specify the name of the user whose credentials will be used to authenticate the operator. The list of available users is found under the Options > SNMP menu. This field is case-sensitive.
Context	Type the context where that the user specified in the User name field belongs to. You can only specify this option when SNMPv3 is selected from the SNMP Version drop-down list.

Advanced Tab

 

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 Retry.
Retry	Type the number of times to attempt to retrieve the SNMP variable.

Available Published Data

 

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.

Common Published Data