TELEFONICA Wireless Router Installation Manual page 17

ADSL:
Asymmetric Digital Subscriber Line. It is a digital line for accessing
Internet at high speed.
Antivirus:
An application that detects and removes any computer virus and
other malicious programs.
DHCP (Dynamic Host Configuration Protocol):
A protocol that allows the hosts of a network to obtain the IP confi-
guration settings automatically.
DNS (Domain Name System):
Domain Name Server. The server translates a domain name (the
name of a machine) into its corresponding IP address.
Encryption or cryptography:
The science that enables one to encode and decipher information
using techniques that make it possible to exchange messages in a
safe and secure way, because they can only be read by the persons
to whom they are addressed.
Ethernet Cable:
A cable that is used to transmit data at high speed in Local Area
Networks (LAN).
Firewall:
A hardware or software element that is used in a computer network
to control and manage the network traffic, either allowing it or re-
jecting it, accor ing to the network policies defined by the organisa-
Glossary
tion that manages the network. It may block the establishment of
the connection to the Internet.
Fixed / Dynamic IP Addressing:
It indicates how Telefónica assigns the IP address to your line. If
every time that your router starts a session it can be assigned a di-
fferent IP address, this indicates that your service includes dynamic
addressing, which is the default type of addressing. However, if you
are always assigned the same IP address, then your IP addressing
service is fixed or static.
PCMCIA:
It is a hardware element that is normally used in laptop computers
to expand their capacities. The most common case is that of wire-
less network adapters, which are of this type.
Ports:
Physical or logical connections for sending or receiving data. It allows
a program to communicate via the network.
Socket:
A plug that is usually installed on the wall that enables the telepho-
ne cable to be connected.
SSID (Service Set Identifier):
A code included in all the packages of a wireless network so that
they can be identified as being part of that network. An SSID thus
enables one to make a distinction between the different wireless
networks that exist.
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