This article will walk through the process of adding a device to inventory and configuring SNMP Trap definitions for generating alerts. 

Prerequisites

Before getting started, please makes sure the following has been completed. 

1. Enable SNMP on the device(s) you will be adding to Goliath Performance Monitor
2. Identify/assign a community string for your devices
   1. (this will be needed later during configuration)

Prepare Goliath for SNMP Trap Monitoring

1. Connect to the Goliath Server via RDP or a console session
2. Open Server Manager and go to Manage>Add Roles & Features
3. Proceed through the Add Roles & Features Wizard, on the Features pane, ensure the SNMP Service is installed
   1. If not, please check the box and install the feature
4. Once the SNMP Service is installed, open Windows Services and go to the properties of the SNMP Service
5. Navigate to the Traps tab of the SNMP Service properties
6. Add the community string(s) you would like the technology to accept and click apply
7. Navigate to the Security tab of the SNMP Service properties
8. In the bottom section of the Security tab, ensure the radio button for accept SNMP packets from any host is selected
9. Click Apply and restart the SNMP Service
10. Close Windows Services

Configure SNMP Trap Monitoring

1. Open the Goliath web console and navigate to Management>Inventory>Manage Inventory
2. Next, you’ll want to add in the device(s) you are looking to monitoring. If they are not in the technology already. please see the below instructions for adding them in, as appropriate. 
   1. Auto-Discovery
      1. Click the menu button at the top of the page and select the sub menu option for Discovery
      2. Check off the box for Find Devices in IP Address Range
      3. Specify the IP Address range of the device(s) you wish to monitor
      4. Select Start Discovery at the bottom to begin discovery
      5. A new pane will appear and will start to load and list out the discovered machines/devices
      6. After discovery completes select the check box next to the appropriate device and select Add at the bottom
   2. Manual Addition
      1. Select New at the top of the page
      2. Specify the Name and Fully Qualified Domain Name (FQDN) of the device
      3. In the ‘IP Address’ field, specify the IP Address of the device or click the Search icon to perform a lookup
      4. Specify the IP address of the device and click Add when finished
      5. Click Add Device
      6. Repeat process to add additional devices
3. Once the device(s) have been added, go to Management>Monitors
4. Click the New button at the top of the page 
5. For the Group dropdown, select a group in which to store the rule. This is for organizational purposes in the Monitors display.
6. In the Type dropdown, select the option for SNMP Trap.
7. Name the Monitoring Rule in the Name field, as well as define the Description and the Severity.
8. In the Devices tab, select the device(s) to assign to the monitor
9. The Options tab is where you will define the Trap OID(s) for this Monitoring Rule. 
   1. Clicking the Select OIDS button displays a pop-up box with all available Trap OIDs.
   2. Check or uncheck the associated checkbox to include or exclude the OID from this Monitoring Rule.
   3. Click the Add Custom OID button to define a new SNMP Trap OID
      1. For one time use, just enter the OID and click Add
      2. To save the OID for future use, define the Trap Name and Description and click Add 
         1. Wildcards are supported in the OID
10. Click Save to complete the configuration

Post Configuration - What's Next?

Now that Goliath has been configured to receive SNMP traps, the data and information can be:

1. Viewed on our real-time dashboard via the Alerts page
2. Configured for scheduled or demand historical reports via the Reports page
   1. Reports>Scheduled Reports>New Report
   2. Select the Report Type for Alert & Log Analysis, the report template Alert Analysis and click next
   3. Select the option for SNMPWatch Alerts and click next
   4. Select the objects/devices under the relevant SNMP Trap Alerts you'd like included in the report and click next
   5. Define the report details and click next
   6. Configure email/export options if applicable and click next
   7. Configure the reporting schedule and click done to save