Fluke Network Router manual Notifications, Windows snmptrap.exe service, Windows NT

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User’s Guide – version 1.6

NetWatch

the device with each SNMP request. If you are not sure of the communities on a particular device a good guess for the read-only community is “public”.

Notifications

A notification or trap is a small message sent by an SNMP agent to a management station to inform the management station of an event that has just happened. Traps can be used to reduce the network traffic and load on the device caused by rapidly polling values. SNMP defines six standard traps that tell when the device is powered on or soft booted, when a link goes up or down, when an SNMP request has been received with an invalid community and when a router loses connectivity with a neighbour. In addition, there are thousands of enterprise-specific traps defined by equipment and software vendors.

Traps are not reliable; a trap may be lost somewhere between an SNMP agent and a management station. There is a much less used message called an inform that aims to solve this problem.

The Windows snmptrap.exe service

Windows NT and 2000 have the ability to receive SNMP traps by using a service called “SNMP Trap Service”. Older versions of NetWatch made use of this service, but due to compatibility problems version 1.1.3 and above use a different means of receiving traps.

If you find that NetWatch does not receive SNMP traps, you may need to disable this service.

Windows 2000

Ensure you are logged in as an administrator of the machine running NetWatch. Open My Computer and then Control Panel. In the Control Panel, open “Administrative Tools” and then “Services”. Find “SNMP Trap Service” in the list, right click it and choose “Properties”. Choose “Manual” from the list beside “Startup type:”. If the “Stop” button is not greyed out, click it then click “Ok”.

Windows NT

Ensure you are logged in as an administrator of the machine running NetWatch. Open My Computer and then Control Panel. In the Control Panel open “Services”. Find “SNMP Trap Service” in the list and select it. Click the “Startup…” button and select “Manual” from the set of radio buttons at the top. Click “Ok”. If the “Stop” button is not greyed out, click it then click “Yes”. Finally, click “Close”.

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Contents NetWatch Software License Agreement Other Restrictions Termination User’s Guide version NetWatch Support Charges Support ServicesDefinitions Supplier’s Undertakings Undertakings by YouLimitation of Liability and indemnity Intellectual Property RightsMiscellaneous Confidential Information and SecurityResponse Times Exceptions to Support ServicesSupport Hours Contents Reporting System Security Installing NetWatch Key Product FeaturesIntroduction OverviewArchitecture Overview Accessing the User InterfaceNetWatch Monitoring System Web Front-end NetWatch DatabaseAlerting System Global System Settings NetWatch ConfigurationSpecifying Devices Setting up a DevicePing Select Service TypesTCP Port Test Snmp Interface TestDiscovery AlarmsEditing Devices Editing ServicesDisabling Data Archiving Data ArchivingEnabling Data Archiving Visual Backgrounds Supplied with NetWatch NetWatch VisualisationManaging Visual Backgrounds To add an action to a Node\Link Drawing the VisualClick Add Node Select Description Alignment Using a NetWatch VisualLink Colour Code System View Traffic between 2 NodesNode Colour Code System What Can Trigger an Alert? Alerting SystemHow NetWatch Alerting Works Syslog Receiving AlertsWeb Based Reports Syslog Recipient Setting up Alert ControllersEmail Recipient Reporting System Syslog Messages Syslogs Configuring Devices to Send Syslogs to NetWatchSyslogs and NetWatch Enabling Syslog ReceptionUtilities Manual Status Setting up a licenceLoad How NetWatch services work Services, Discovery and PollingSnmp Interface Test service DiscoveryPage TCP Port Status service Receive Snmp Notifications service Ping Response Test serviceConfiguring services Response Time GraphingEnabling Security SecurityLevels of Security MIBs Appendix a SnmpOIDs CommunitiesNotifications Windows snmptrap.exe serviceWindows Windows NTFurther Information Configuring Snmp on a Cisco RouterUser’s Guide version NetWatch Appendix B NetWatch And IIS Page Appendix C Integrating Netwatch and Netflow Tracker Discovery Methods Appendix D Auto DiscoveryIP Address Range Filters JspSmartUpload MySQL Jakarta Tomcat Appendix E Third Party Software
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