Device Types
The Discovery app lists and analyzes the types of devices explained in this section. Different data may be available to the EtherScope depending on the device type, how it was discovered, and your configured settings.
In this Topic
See Discovery Settings for SNMP Configuration and Devices Discovered Through Other Devices options.
For descriptions of the different Details cards and screens, see Discovery Details.
The images in the rest of this section show examples of data that Discovery may display for each device type.
Routers
EtherScope discovers IP routers by monitoring traffic and querying hosts.
Switches
Switches are also discovered by monitoring traffic and querying hosts.
Unknown Switches
Unknown switches are detected indirectly by analyzing traffic going through surrounding switches. The EtherScope cannot identify the switch, but it can sense where a switch is active on the network via the device MAC addresses in that space.
The EtherScope numbers the switches as they are discovered. (These numbers may change each time the discovery process runs.)
The Unknown Switches Details screen shows the number of devices connected to the switch. Tap the Connected Devices card to view the connected devices, which may provide clues about the location of the unknown switch.
Network Servers
Network servers include NetBIOS, DHCP, and DNS servers.
Hypervisors
VMware hypervisors are discovered via SNMP. The hypervisor's SNMP agent must be enabled for the EtherScope to discover it and classify it as a hypervisor.
Virtual Machines
VMware virtual machines are discovered from VMware client table in SNMP-enabled VMware hypervisors. Devices are also classified as Virtual Machines if they have a VMware MAC.
Wi-Fi Controllers
EtherScope can discover SNMP enabled Wi-Fi controllers, including Cisco and Aruba Wi-Fi Controllers.
Access Points (APs)
The EtherScope discovers APs through wireless packet analysis and SNMP queries with a linked connection through a management or test port.
See also APs in the Wi-Fi analysis app.
Wi-Fi Clients
Wireless clients are discovered through
See also Clients in the Wi-Fi analysis app.
VoIP Phones
VoIP discovery provides visibility into the VoIP and layer 2/3 configuration of the network.
Printers
The EtherScope identifies IP printers via the SNMP Printer MIB and IPX printers via diagnostic requests and queries.
SNMP Agents
SNMP agents are discovered using SNMP queries. See SNMP Configuration.
See also SNMP Details.
Network Tools
The EtherScope can also identify other NetAlly network testers, such as other EtherScope nXGs, AirChecks, CyberScopes, LinkRunners, and Test Accessories.
The image above shows several NetAlly tools as they appear in the main Discovery list.
EtherScope displays all the information it can gather about each tool on the Details screen.
Hosts/Clients
Other hosts and clients are discovered by traffic monitoring and querying. If a host cannot be identified as belonging to one of the other categories (Switch, Router, VoIP device, etc.) then it is categorized as Host/Client.
NOTE: A MAC address that begins with LocalAdm indicates that the address has been locally randomized to prevent unauthorized tracking.
