Managing NerveCenter - Managing Node Data - Populating the Node List Initially - Populating Using the IPSweep Behavior Model -
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Populating Using the IPSweep Behavior Model

There may be situations in which you will not want to use a network management platform to populate NerveCenter's node list initially. Such situations could include:

• Your network does not contain an applicable network management platform or you are using NerveCenter as a stand-alone application.
• A large distance or a costly link separates the platform from the nodes that NerveCenter will be monitoring locally.

For situations such as these, NerveCenter provides the IPSweep behavior model. Using the IPSweep behavior model, NerveCenter detects unknown nodes and adds them to the node database, provided they fall within the set filters.

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Note    If you are using NerveCenter in Windows NT configured with Domain Name Server (DNS), the IPSweep behavior model requires that Enable DNS for Windows Resolution be selected. (This option is found on the WINS address tabbed page of the TCP/IP protocol, found on the Protocols tabbed page in the Network applet in the Control Panel.)

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  To populate the node list using the IPSweep behavior model:

1. Open NerveCenter Administrator and connect to the appropriate NerveCenter Server.

   See Connecting Administrator to a NerveCenter Server.

2. Select the IP Filters tab and configure NerveCenter to filter by the appropriate subnet criteria. See "Filtering nodes using a Node's IP Address" on page 94.

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   Caution    If the IP Filter box is empty, the IPSweep behavior model's primary application ipsweep will not run. This precaution is to prevent NerveCenter from trying to discover all the nodes on the Internet.

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3. Select the Server tab.

   NerveCenter displays the Server page.

   The Server Page

   

4. Select from the Discover Nodes from Traps list All or Filter.

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   Note    If the Discover Nodes from Traps field is set to None, the IPSweep behavior model will not work.

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5. If you want NerveCenter to turn on the IPSweep behavior model every time the NerveCenter Server is started, select Enable Discovery at Startup.
6. From NerveCenter Client, turn on the IPSweep behavior model. See the Designing and Managing Behavior Models in the NerveCenter documentation for details.

NerveCenter periodically runs the script ipsweep. As NerveCenter discovers unknown nodes that fall within its IP filters it will add them to the node list.