EnGenius Technologies EOA7530 - Manual (Page 80)

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Keys
Keys are used like passwords to open and close (encrypt and decrypt) messages. While many
encryption algorithms are commonly known and public, the key must be kept secret.
Local‐Area Network (LAN)
A small data network covering a limited area, such as a building or group of buildings. Most LANs
connect workstations or personal computers. This allows many users to share devices, such as
printers, as well as data. The LAN also allows easy communication, by facilitating e‐mail or
supporting chat sessions.
Media Access Control (MAC) Address
The address associated with every hardware device on the network. Every 802.11 wireless device
has its own specific MAC address hard‐coded into it. This unique identifier can be used to provide
security for WLANs. When a network uses a MAC table, only the 802.11 radios that have had
their MAC addresses added to that network's MAC table are able to get onto the network.
Network Address Translation (NAT)
An Internet standard that enables a LAN to use one set of IP addresses for internal traffic and a
second set of addresses for external traffic.
Network Time Protocol (NTP)
A protocol that allows devices to synchronize their time with a time server. It uses TCP or UDP
port 123 by default
Passphrase
A text string used to automatically generate WEP keys on wireless client adapters.
Power Over Ethernet (PoE)
The ability to provide power to a PoE‐enabled device via an 8‐pin CAT 5 Ethernet cable,
eliminating the need for a nearby power source.
Preamble
Used to synchronize transmissions in a WLAN. The preamble type defines the length of the Cyclic
Redundancy Check block for communication between the device and roaming wireless stations.
Protected Extensible Authentication Protocol (PEAP)
An authentication protocol of IEEE 802.1x used to transmit authentication data, including
passwords, over 802.11 WLANs.
Quality of Service (QoS)
Refers to a network’s ability to deliver data with minimum delay, and to the networking methods
used to provide bandwidth for real‐time multimedia applications.
Remote Authentication Dial‐In User Service (RADIUS)
A networking protocol that provides centralized authentication, authorization, and accounting
management for computers to connect and use a network service. Because of the broad support
and the ubiquitous nature of the RADIUS protocol, it is often used by ISPs and enterprises to
manage access to the Internet or internal networks, WLANs, and integrated e‐mail services.
Service Set Identifier (SSID)
The name of a WLAN. All wireless devices on a WLAN must use the same SSID in order to