Table 36: List of terms

Term

Definition

 

 

access point

An access point (AP) connects users to other users within the network and

 

also can serve as the point of interconnection between the WLAN and a

 

fixed wire network. The number of APs a WLAN needs is determined by

 

the number of users and the size of the network.

 

 

access point mapping

The act of locating and possibly exploiting connections to WLANs while

 

driving around a city or elsewhere. To do war driving, you need a vehicle,

 

a computer (which can be a laptop), a wireless Ethernet card set to work in

 

promiscuous mode, and some kind of an antenna which can be mounted

 

on top of or positioned inside the car. Because a WLAN may have a range

 

that extends beyond an office building, an outside user may be able to

 

intrude into the network, obtain a free internet connection, and possibly

 

gain access to company records and other resources.

 

 

ad-hoc network

A LAN or other small network, especially one with wireless or temporary

 

plug-in connections, in which some of the network devices are part of the

 

network only for the duration of a communications session or, in the case

 

of mobile or portable devices, while in some close proximity to the rest of

 

the network.

 

 

band

A specified range of frequencies of electromagnetic radiation.

 

 

DHCP

The Dynamic Host Configuration Protocol (DHCP) is an auto-configuration

 

protocol used on IP networks. Computers or any network peripherals that

 

are connected to IP networks must be configured, before they can

 

communicate with other computers on the network. DHCP allows a

 

computer to be configured automatically, eliminating the need for a

 

network administrator. DHCP also provides a central database to

 

keep track of computers connected to the network. This database helps in

 

preventing any two computers from being configured with the same IP

 

address.

 

 

DNS Server

A Domain Name System (DNS) server functions as a phonebook for the

 

internet and internet users. It converts human readable computer

 

hostnames into IP addresses and vice-versa.

 

A DNS server stores several records for a domain name such as an

 

address 'A' record, name server (NS), and mail exchanger (MX) records.

 

The Address 'A' record is the most important record that is stored in a DNS

 

server, because it provides the required IP address for a network

 

peripheral or element.

 

 

DST

Daylight saving time (DST), also known as summer time, is the practice of

 

advancing clocks, so that evenings have more daylight and mornings

 

have less. Typically clocks are adjusted forward one hour near the start of

 

spring and are adjusted backward in autumn.

 

 

EAP

Extensible authentication protocol (EAP) refers to the authentication

 

protocol in wireless networks that expands on methods used by the point-

 

to-point protocol (PPP), a protocol often used when connecting a

 

computer to the internet. EAP can support multiple authentication

 

mechanisms, such as token cards, smart cards, certificates, one-time

 

passwords, and public key encryption authentication.

 

 

fixed wireless

Wireless devices or systems in fixed locations such as homes and offices.

 

Fixed wireless devices usually derive their electrical power from the utility

 

mains, unlike mobile wireless or portable wireless which tend to be

 

 

HP Cloud Network Manager User Guide

Terminology 87