Administrator Guide

Information about endpoints connected to the network device (typically MAC addresses of endpoints
connected to switch ports). These are added as discovered endpoints. For more information, see Viewing
Discovered Endpoints on page 151.
l ARP table
The ARP table provides information about MAC address > IP associations for endpoints that were recently
seen by this device. These endpoints are probed further in an attempt to profile them. For more
information, see Viewing Discovered Endpoints on page 151.
l Neighbor network devices
Other network devices connected to the seed device as determined by neighbor discovery protocols such as
Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP) (if enabled in your network).
Each of the discovered neighbor network devices are further queried as seed devices; this is repeated for
multiple levels in your network up to a specified scan depth. For more information, see Viewing Details on a
Discovered Device on page 151.
Network Discovery High-Level Tasks
Configuring Network Discovery consists of these major tasks:
1. Add the configurations (SNMP, SSH, or WMI) needed to query all the devices in the target network.
2. Initiate a network discovery scan.
3. Import the discovered network devices into W-ClearPass.
4. Review the set of discovered devices and view the connected endpoints and neighbors.
Adding the Configurations to Query Seed Devices
You must configure SNMP, SSH, and WMI credentials for the devices that you want to discover as part of the
network scan. These credentials are used during Network Discovery or an On-Demand subnet scan to profile
Linux servers and machines (SSH credentials), Windows servers and machines (WMI credentials), and network
devices (SNMP).
SNMP Credentials Configuration
For network device discovery, specify SNMP Read credentials. An SNMP-based scan sends an SNMP request to
retrieve the network device information.
To add the SNMP configuration:
1. Navigate to Configuration > Profile Settings, then select the SNMP Configuration tab.
The Profile Settings > SNMP Configuration page opens.
2. Click the SNMP Configuration tab.
Figure 101: Adding an SNMP Configuration
3. Click Add SNMP Configuration.
The SNMP Configuration dialog opens.
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