Siemens Gigaset S675IP User Manual page 145

Glossary
I
IEEE
Institute of Electrical and Electronics Engineers
International body that defines stand-
ards in electronics and electrotechnol-
ogy, concerned in particular with the
standardisation of LAN technology,
transmission protocols, data transfer
rate and wiring.
Infrastructure network
Network with central structure: all Net-
work subscribers communicate via a
central Router.
Instant messaging
Service that uses a client program to
allow chatting in real time, i.e. to send
brief messages to other subscribers on
the Internet.
Internet
Global WAN. A series of protocols have
been defined for exchanging data,
known by the name TCP/IP.
All Network subscribers are identifia-
ble via their IP address. DNS assigns a
Domain name to the IP address.
Important services on the Internet
include the World Wide Web (WWW), e-
mail, file transfer and discussion
forums.
Internet Service Provider
Enables access to the Internet for a fee.
IP (Internet Protocol)
TCP/IP protocol on the Internet. IP is
responsible for addressing subscribers
in a Network using IP addresses and
routes data from the sender to the
recipient. IP determines the paths
(routing) along which the data packets
travel.
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IP address
A unique address for a network compo-
nent within a network based on the
TCP/IP protocols (e.g. LAN, Internet).
On the Internet, domain names are
usually assigned instead of IP
addresses. DNS assigns the corre-
sponding IP address to the domain
name.
The IP address has four parts (decimal
numbers between 0 and 255) sepa-
rated by full stops (e.g. 230.94.233.2).
The IP address is made up of the net-
work number and the number of the
Network subscribers (e.g. phone).
Depending on the Subnet mask, the
front one, two or three parts make up
the network number and the rest of the
IP address addresses the network com-
ponent. The network number of all the
components in any one network must
be identical.
IP addresses can be assigned automati-
cally with DHCP (dynamic IP addresses)
or manually (static IP addresses).
See also: DHCP.
IP pool range
Range of IP addresses that the DHCP
server can use to assign dynamic IP
addresses.
L
LAN
Local Area Network
Network with a restricted physical
range. A LAN can be wireless (WLAN)
and/or wired.
Local IP address
The local or private IP address is the
address for a network component in
the local network (LAN). The network
operator can assign any address he or
she wants. Devices that act as a link
from a local network to the Internet
(gateway or router) have a public and a
private IP address.
See also IP address.