Users Guide

8 | Overview Dell Networking W-AirWave 8.2.x | Getting Started Guide
Discovering New Devices
In addition to manually adding devices, devices connected to your network can automatically be discovered and
added. AirWave performs device discovery using the following methods. These methods are described in greater
detail in the Dell Networking W-AirWave 8.2.x User Guide.
l SNMP/HTTP Discovery Scanning – This is the primary method for discovering devices. Refer to "Configuring and
Running a Scan Set" on page 8 for information about how to utilize this feature.
l Cisco Discovery Protocol (CDP) – CDP uses the polling interval configured for each individual Cisco switch or router
on the Groups > List page. For device discovery, AirWave requires read-only access to a router or switch for all
subnets that contain wired or wireless devices in order to discover a Cisco device’s CDP neighbors. The CDP Neighbor
Data Polling Period is specified on the Groups > Basic page for a specific group.
Dell Networking W-Instant devices are automatically discovered. Refer to the Dell Networking W-Instant in W-AirWave
8.2.5.1 Deployment Guide for more information on Dell Networking W-Instant devices in AirWave.
Configuring and Running a Scan Set
Configuring a scan set consists of defining the network segments that will be scanned along with the credentials
used for governing the scanning of a given network. Perform the following tasks to configure a scan set.
1. Add networks for SNMP/HTTP scanning.
a. Navigate to the Device Setup > Discover page and locate the Networks section.
b. Click Add. A New Networks form opens.
c. Enter a name for the network, the IP network range or first IP address on the network to be scanned, and
the subnet mask for the network to be scanned. Note that the largest subnet that AirWave supports is
255.255.0.0.
d. Click Add . Repeat steps 1a - 1d to add all the networks on which to enable device scanning.
2. Add credentials for scanning.
a. Navigate to the Device Setup > Discover page and scroll down to the Credentials section.
b. Click Add. The New Scan Credentials form opens.
c. Enter a name for the credential in the field (for example, Default). This field supports alphanumeric
characters (both upper and lower case), blank spaces, hyphens, and underscore characters.
d. Select the type of scan to be completed.
n SNMPv1 and SNMPv2 differ between their supported traps, supported MIBs, and network query
elements used in device scanning.
n HTTP is not as robust as SNMP in processing network events, but HTTP might be sufficient, simpler, or
preferable in certain scenarios.
e. If you selected SNMP, then define the community string to be used during scanning. If you selected HTTP,
then enter a user name and password for the scan credentials.
f. Click Add. Repeat steps 2a - 2f to add credentials on which to enable device scanning.
3. Define a scan set.
a. Navigate to the Device Setup > Discover page and select the Add New Scan Set button.
b. Select the Network(s) to be scanned and the Credential(s) to use. AirWave defines a unique scan for each
Network/Credential combination.
c. In the Automatic Authorization section, select whether to override the global setting in AMP Setup >
General and have New Devices be automatically authorized into the New Device List, the same
Group/Folder as the discovering devices, the same Group/Folder as the closest IP neighbor, or a specified
auto-authorization group and folder. Be sure to note this location.