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- Obtain or calculate the network range values. You can define a network address (in effect, a subnet prefix), an IP range, or an IP pattern.
- Click the Settings icon > Setup > Discovery Settings > Ranges.
- Click New.
- Choose an appropriate way to specify the range:
- CIDR: Enter the IP Prefix value and its CIDR subnet value in the drop-down.
- IP Range: Specify an IP range using a beginning and ending value.
- IP Pattern: Specify a wildcard pattern for matching IP addresses.
- For Discovery Mode, select one of the following:
- Include in discovery: Any device found matching that range is discovered and managed by NetMRI.
- Exclude from discovery: Ignore the specified values and do not discover them through any of the specified protocols.
- Exclude from management: Indicates that NetMRI discovers any device found matching that range, but NetMRI will not manage or collect data from the device.
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- If you are discovering end host subnetworks for Switch Port Management, choose the Exclude from management option for the end host discovery ranges.
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- To use a discovery ping sweep (an ICMP ping that is broadcast to all addresses in a subnet) during discovery on IPv4 networks, click the Enable Discovery Ping Sweep checkbox. Ping sweep is not available for IPv6 network values. For more information on ping sweeps, see Defining Group Data Collection Settings.
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- From the Filter by Collector drop-down menu, choose the Collector from the list, or select All. Ensure that the chosen Collector has enough space in its license allocation to accommodate the number of devices you expect the Collector to manage in the discovery range.
If the discovery range you wish to assign to the Collector is designated as Exclude from Management, the range can be of greater scope.
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- From the Network View drop-down menu, choose the network view to which the range will be assigned. If the network view is divided among two or more Collectors as described above, select the desired network view entry based on the associated Collector name.
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- Click Add. The new range appears in the ranges table.