How to setup a SNMP Trap Receiver

What is a SNMP Trap Receiver?

IsItUp SNMP Trap Receiver is part of our complete SNMP implementation. SNMP enabled devices can be queried for information or they can send information asynchronously without being queried. IsItUp supports both methods. For more information on how to setup a query, click here : How to monitor with SNMP. For general information on SNMP Traps, click here : SNMP Trap Receiver.


The IsItUp Network Monitor SNMP trap processing architecture is designed to be high performance and suitable for all organizations from small business to large enterprises. The trap processing data flow starts with a process dedicate to receiving the traps and writing them to a database. This is very efficient and allows IsItUp to process thousands of traps per second. Then one or more monitors are created by the system administrator that scan the trap database periodically and based on user provided filtering sends alerts when a trap is matched. In this way, IsItUp can respond to real-time notifications of events to alert you to problems before they become issues.


IsItUp also has a wide variety of monitor types to meet your monitoring needs including CPU Performance, Windows Event Log, Web Site, Email, DNS, Disk Space and many others.

Get Started Protecting your Network

To quickly get started protecting your network, Download your free trial of our network monitoring solution and follow the simple steps below to setup a SNMP Trap Receiver.

How to setup a SNMP Trap Receiver

1. On the home tab, select the Add Monitor button and then SNMP Trap Receiver Monitor. This will launch the SNMP Trap Receiver wizard.

2. Enter a device name and select the desired group. Then configure the monitor to respond to just the traps your are interested in. The filters can be configured to respond to a specific trap for a specific IP address or a broad range of traps from many different IP addresses. The filters are laid out to correspond to the fields in a SNMP trap making the monitor intuitive to setup. All traps are converted to SNMP Version 2c according to RFC 3584 to make a consistent setup no matter what version of the SNMP agent. Once the monitor configuration is complete, the monitor will begin scanning the trap database based on the frequency configured for the monitor in the next step of the Create Monitor Wizard. The database may be scanned in two ways. First, it can scanned the trap database based on just the traps that have been added since the last scan by this monitor. Alternatively, it can scan the trap database within a fixed amount of time from the present.

3. In addition to filtering on the standard fields found in a SNMPV1 and SNMPV2c traps, you can also filter on variable bindings. Simply click on the "Add" button to launch the variable bindings dialog as show below. You can add as many variable bindings as desired.

4. At this point, you can simply click on the finish button. The monitor will be created with a default frequency of once every 30 minutes. The state of the device being monitored will be displayed on the screen as a green arrow pointing up if no trap matches the filters and a red arrow pointing down if a trap does match. However, you can continue configuring the frequency, dependency maintenance schedule, alerts, and actions if desired.

5. IsItUp support three types of Alerts and two types of actions. The alert types are Email and SMS messages, Paging, and playing a sound. The actions are restarting a service and executing a program with optional parameters. In order to configure alerts, either click on the Next button until you come to the alert you want to configure or select from the Navigation links on the left side of the dialog. For information on how to setup alerts and actions see the table below :

How to create an Email alert
How to send a SMS alert
How to customize an Email or a SMS alert
How to Execute an External Program as an alert