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Adding a Device Discovery Rule
Copyright © 2010, Juniper Networks, Inc.
By configuring and running a discovery rule, you can search a network to discover devices
in a specified subnet or within a range of IP addresses. Authentication of the devices is
through administrator login SSH v2 credentials and SNMP community settings, which
you also configure as part of the rule. Devices that match the rules for discovery also
present an SSH key for your verification before the device is added to NSM.
To add a device discovery rule:
In the Configure pane of the NSM navigation tree, click Device Discovery Rules.
1.
Any existing discovery rules appear in the main display area.
Click the Add icon to display the New Device Discovery Rule dialog box.
2.
Give the rule a name and provide the following search criteria for the devices:
3.
A prefix for device names—for example, "USA". The prefix is used to assign names
to the devices when they are added into NSM. For example, when a device at IP
address
10.204.32.155
Check the Use Host Name if Available checkbox, if you want the device hostname
to be used as the prefix.
An IP subnet or range of IP addresses.
Administrator login name and password.
SNMP version and community string.
Select the Run Topology Discovery checkbox, if you want to use topology discovery
to discover devices.
Click Apply to add the rules to the list of device discovery rules.
4.
To ensure that devices are discovered correctly, it is recommended that you:
Use SNMP V1 or V2C versions.
Use a subnet mask narrower than 255.255.240.0 because the broadest subnet mask
recommended for any device discovery rule is 255.255.240.0.
Do not use more than 4096 IP addresses.
NOTE: Device discovery supports only IPv4 addresses. IPv6 based devices are not
discovered.
NOTE: Device discovery will not add cluster members. Cluster members will have to
be added to NSM manually.
is added to NSM, its name will be
Chapter 4: Adding Devices
USA_10.204.32.155
.
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