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Foglight for SNMP 5.9.1 - User and Reference Guide

Managing SNMP V1 or V2c community strings

Foglight for SNMP uses public (read-only) community strings. You can add more public community strings. All community strings must be unique for each version. Therefore, you may have to run the Discover Device(s) wizard more than once to properly discover all devices in the network.

 
* 
IMPORTANT: Add or remove credentials using the Manage all credentials wizard only.
Adding SNMP V1 or V2c community strings
To add an SNMP V1 or V2c community string:
1
Open the Configure Community and User Credential dialog box, as described in Accessing the Manage all credentials wizard.
2
In the Communities table, click Add.
3
Select the version: V1 or V2c.
4
In the Add Community Item dialog box, type a unique community string name.
5
Click Add.
Removing SNMP V1 or V2c community strings

Community strings cannot be removed if they are being used to manage devices.

To remove an SNMP V1 or V2c community string:
1
Open the Configure Community and User Credential dialog box, as described in Accessing the Manage all credentials wizard.
2
In the Communities table, click the check box next to the community string that you want to remove.
The Remove button becomes enabled.
3
Click Remove.
The Remove Community Items dialog box opens.
4
Click OK.
Related topics:
•
Managing the SNMP V3 credentials
•
SNMP communities and credentials
•
Changing an SNMP device credential

Managing the SNMP V3 credentials

You can add multiple credentials. All credentials must be unique. You may have to run the Discover Device(s) wizard more than once to properly discover all devices in the network.

 
* 
IMPORTANT: Add or remove credentials through the Manage all credentials wizard only.
Adding SNMP V3 credentials

Credentials can be added, edited, and removed.

To add SNMP V3 credentials:
1
Open the Configure Community and User Credential dialog box, as described in Accessing the Manage all credentials wizard.
2
In the SNMP v3 Credentials table, click Add.
3
Type the user name that is used for authentication.
 
* 
NOTE: Foglight for SNMP does not support multiple SNMP V3 credentials with different passwords for the same user name.
4
Select a Security Level:
•
No authentication and no privacy — the identity of the sender is not verified.
•
Authentication and no privacy — the identity of the sender is verified, but the information is not encrypted.
•
Authentication and privacy — the identity of the sender is verified and the information is encrypted.
5
If the Security Level that you selected requires authentication, select an authentication protocol and type the passphrase. The passphrase is the password of the specified user name.
6
If the Security Level that you selected requires privacy, select a privacy protocol and type the passphrase. The passphrase is the encryption key.
Removing SNMP V3 credentials

Credentials cannot be removed if they are being used to manage devices.

To remove SNMP V3 credentials
1
Open the Configure Community and User Credential dialog box, as described in Accessing the Manage all credentials wizard.
2
In the SNMP v3 Credentials table, click the check box next to the set of credentials that you want to remove.
The Remove icon becomes enabled.
3
Click Remove.
The Remove User Credential Items dialog box opens.
4
Click OK.
Related topics:
•
Managing SNMP V1 or V2c community strings
•
SNMP communities and credentials
•
Changing an SNMP device credential

Changing an SNMP device credential

Changing an SNMP device credential

After a device has been discovered and is being monitored, you can associate the device with a different existing SNMP credential.

To change a credential
1
Log in to the Foglight browser interface. On the navigation panel, under Dashboards, click Administration > Agents > Agent Status.
2
Select the agent for which you want to change a credential and, in the toolbar, click Edit.
3
Click Edit Properties.
4
Click Modify the private properties for this agent.
5
Scroll down to locate the Credentials property.
6
Click the Edit button on the right side of the Credentials property.
The credentials table opens.
7
Record the ID of the credential and close the table. For example, default_credential_V1_id.
8
Click the Edit button on the right side of the Devices property.
The devices list table opens.
9
Select the desired device and double click the Credential field.
10
Enter the ID of the credential recorded in Step 7 in the Credential field.
11
Click Save Changes.

Managing monitor configurations

A monitor is a group of Object Identifiers (OIDs) used to communicate with an SNMP agent. A typical SNMP monitoring environment contains a combination of built-in and user configured OIDs.

Foglight for SNMP provides pre-defined monitors that collect key data for most of the common devices in a network. When you create a custom SNMP monitor, you can define any OID to an management information base (MIB) node to monitor any SNMP device (regardless of the manufacturer or type of device).

For example, you can monitor temperature on a switch, fan speed on a router, and battery status on a UPS. Custom SNMP monitors enable Foglight for SNMP to provide complete SNMP coverage on any network.

To manage monitor configurations:
1
Log in to the Foglight browser interface. On the navigation panel, under Dashboards, click Administration > Agents > Agent Status.
2
Select the SNMP agent type for which you want to configure an SNMP monitor and, in the toolbar, click Edit.
3
Click Edit Properties.
4
Click Modify the private properties for this agent.
5
In the Devices and Collection OIDs section, locate the Monitor Configurations property.
6
Click the Edit button for this property.
A table of the properties specific to the selected agent type opens.
 
7
Double-click on the value to change the fields, as necessary:
 
* 
IMPORTANT: Do NOT modify the Monitor ID.
•
Interval — The time during which the agent collects data.
•
Time Unit — The time unit associated with the Interval property. Supports minutes, hours, days, and cron.
 
* 
NOTE: For information on how to use cron, see the Foglight Agent Manager Guide.
•
Enable — Indicates whether data collection from the monitor is enabled or disabled.
•
Show — Disregard — this field is no longer used.
8
Click Save Changes.
The new settings are saved for the selected agent.
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