The Simple Network Management Protocol (SNMP) is a protocol used to monitor network performance and certain aspects of network devices.
To monitor Corente Services Gateways with SNMP, you complete the SNMP tab and the Alerts tab in the Location form. You must also use two tools that are available in the SNMP category of the App Net Manager domain directory:
To determine how you will configure SNMP for use with your Corente Services network, review the following summary of the procedure you will need to complete:
Identify the SNMP MIBs and MIB objects that provide the information you need to monitor.
You can view the MIBs that are available for use with a Corente Services Gateway by accessing Gateway Viewer and opening the Download page. Each MIB is listed on this screen with a corresponding text file that you can download. This text file contains the definitions of all objects (for example, SNMP variables) within that MIB.
After identifying the MIBs and MIB objects that provide the information you need, you must then create logical groups of these MIBs and MIB objects on the Section 10.2.2, “SNMP Views” interface.
Identify the Corente Services Gateways you will be monitoring (if using SNMP v1 or v2) or the users who will be monitoring the Corente Services network (if using SNMP v3).
If using SNMP v1 or v2, assemble these Locations into logical groups and give each group a name. Administer an SNMP Community for each group. This requires configuration on the machine that will be performing the polls/receiving the traps.
If using SNMP v3, administer user accounts on the Section 10.2.1, “SNMP Users” interface.
Identify the IP addresses of the machines that will be performing the SNMP queries/receiving the SNMP traps (the SNMP Managers). Create User Groups on the User Group tab of the Location form for these machines. For SNMP Managers that are receiving traps, they must each be placed in their own User Group.
You must make sure that the User Groups containing the SNMP Managers can access this Corente Services Gateway. This may require the configuration of special tubes to this Location.
To allow local computers on the Corente Services Gateway’s LAN the ability to monitor this Corente Services Gateway, modify the LAN to Location tube on the Partners tab of the Location form or with the Tubes Wizard.
To allow remote computers behind a Location partner the ability to monitor this Location gateway, you can create a specific tube from a remote User Group to the local Location LAN Address.
Any Firewall Policy that is configured between an SNMP Manager's User Group and this Corente Services Gateway must allow the SNMP Firewall Service over the connection.
Combine the information compiled in the previous steps and decide which views must be used to access which SNMP Communities (if using SNMP v1 or v2) and which SNMP Users require the use of which views (if using SNMP v3). Also, decide which SNMP Managers and their respective User Groups need access to which communities (v1/v2) or which users will be using each SNMP Manager and its respective User Group (v3).
Complete the configuration of SNMP by providing this information on each SNMP tab of the Location form for each Corente Services Gateway that will be monitored.
Finally, if you are using SNMP traps, you must enable the alerts you would like traps sent for on the Alerts tab of the Location form for each Location.
SNMP v3 requires the use of user accounts to query entities. The SNMP Users feature enables you to add user accounts to your Corente Services network that can be used to obtain information from a Corente Services Gateway.
To access the SNMP Users feature, open the Global Intranet Settings category of the domain directory, then open the SNMP subcategory, and then select SNMP Users.
When you select SNMP Users, all SNMP User accounts that have been configured in this domain will be displayed in a table to the right of the domain directory. This table displays:
SNMP User: the SNMP User account name
Authorization Type: the Authorization Type that the account uses
SNMP Views: the number of SNMP Views that have been assigned to them
In Use by Traps: whether or not the SNMP User account is currently in use by a Location
You can edit or delete any existing user. To add a new user, make sure SNMP Users is selected in the domain directory and:
Select the New button in the toolbar.
From the File menu, select Add SNMP User.
Right-click SNMP Users in the domain directory and select Add SNMP User.
You will be taken to a blank Add SNMP User window.
Fill out this window as follows:
SNMP User Name: Enter the username for this user. You may use up to 30 alphanumeric characters. Hyphens and underscores are allowed, but do not use tabs, spaces, or punctuation marks when creating this name.
Authorization Type: Choose the type of authentication for SNMP users that is being used on your LAN. You can choose either MD5 or SHA.
Authorization Pass Phrase: Enter the pass phrase for this user.
Confirm Pass Phrase: Re-enter the pass phrase to confirm it and avoid mistakes.
Selected SNMP Views: All views that you have created with the SNMP Views feature will be listed. Select the checkbox beside the view that you would like to assign to this user. Select as many views as you would like to assign. Select All will select all views in this list while Clear All will clear all of your current choices.
When you click the OK button and then save your changes with the Save button in the App Net Manager toolbar, the new user will be added to the SNMP Users list in the domain directory.
The SNMP Views feature enables you to define groups of MIBs and MIB objects that can later be allowed or denied on each Corente Services Gateway (on the SNMP tab of the Location form) or SNMP User, to limit how SNMP Managers can query or monitor the Corente Services Gateway.
To access the SNMP Views feature, open the Global Intranet Settings category of the domain directory, then open the SNMP subcategory, and then select SNMP Views.
When you select SNMP Views, all SNMP Views that have been configured in this domain will be displayed in a table to the right of the domain directory. This table displays:
SNMP View: the SNMP View name
SNMP MIB Subtrees: the SNMP MIB subtrees that are included in the view
In Use Locations: whether or not the SNMP View is currently in use by a Location
In Use SNMP Users: whether or not the SNMP View account is currently assigned to a SNMP User account
You can edit or delete any existing SNMP View. To add a new SNMP View, make sure SNMP Views is selected in the domain directory and:
Select the New button in the toolbar.
From the File menu, select Add SNMP View.
Right-click SNMP Views in the domain directory and select Add SNMP View.
You will be taken to a blank Add SNMP View window.
SNMP View Name: Enter a name for your new view in this field. You may use up to 30 alphanumeric characters. Hyphens and underscores are allowed, but do not use tabs, spaces, or punctuation marks when creating this name.
SNMP MIB Subtrees
You can Edit or Delete any existing entries in the table. To add a new entry, click the Add button to display the Add SNMP MIB Subtree window.
Fill out the following fields:
Include SNMP MIB Subtree/Exclude SNMP MIB Subtree: Select one of these options to include or exclude a MIB (or MIB object) in this view.
SNMP MIB Subtree: Type the name of the MIB (and MIB object, if applicable) in this field that you are including or excluding in the view. If you are specifying a MIB object, use this format:
MIB name::MIB object name.
When you have completed these fields, click the OK button to store your changes or the Cancel button to close the window without storing your changes.
Each SNMP View can contain multiple entries. When you have completed the definition of your new view, click the OK button to store your changes or the Cancel button to close the window without storing your changes. You must save your changes with the Save button in the App Net Manager toolbar in order for them to take effect.