User`s guide

ADSL/VoIP Gateway User’s Guide Glossary
115
upstream The direction of data transmission from the user to the Internet.
VC Virtual Circuit
A connection from your DSL router to your ISP.
VCI Virtual Circuit Identifier
Together with the Virtual Path Identifier (VPI), the VCI uniquely
identifies a VC. Your ISP will tell you the VCI for each VC they
provide. See VC.
VPI Virtual Path Identifier
Together with the Virtual Circuit Identifier (VCI), the VPI uniquely
identifies a VC. Your ISP will tell you the VPI for each VC they
provide. See VC.
WAN Wide Area Network
Any network spread over a large geographical area, such as a
country or continent. With respect to the Hata! Stil
tanımlanmamış., WAN refers to the Internet.
Web browser A software program that uses Hyper-Text Transfer Protocol
(HTTP) to download information from (and upload to) web sites,
and displays the information, which may consist of text, graphic
images, audio, or video, to the user. Web browsers use Hyper-
Text Transfer Protocol (HTTP). Popular web browsers include
Netscape Navigator and Microsoft Internet Explorer. See HTTP,
web site, WWW.
Web page A web site file typically containing text, graphics and hyperlinks
(cross-references) to the other pages on that web site, as well as
to pages on other web sites. When a user accesses a web site,
the first page that is displayed is called the home page. See
hyperlink, web site.
Web site A computer on the Internet that distributes information to (and
gets information from) remote users through web browsers. A
web site typically consists of web pages that contain text,
graphics, and hyperlinks. See hyperlink, web page.
WEP Wired Equivalent Privacy (WEP) encrypts data over WLANs. Data
is encrypted into blocks of either 64 bits length or 128 bits length.
The encrypted data can only be sent and received by users with
access to a private network key. Each PC on your wireless network
must be manually configured with the same key as your device in
order to allow wireless encrypted data transmissions.
Eavesdroppers cannot access your network if they do not know
your private key. WEP is considered to be a low security option.
Wireless Wireless is a term used to describe telecommunications in which
electromagnetic waves (rather than some form of wire) carry the
signal over part or all of the communication path. See wireless
LAN.
Wireless LAN A wireless LAN (WLAN) is one in which a mobile user can
connect to a local area network (LAN) through a wireless (radio)
connection. A standard, IEEE 802.11, specifies the technologies
for wireless LANs.
WPA Wi-Fi Protected Access
WPA is an initiative by the IEEE and Wi-Fi Alliance to address the
security limitations of WEP. WPA provides a stronger data