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Glossary
Gigaset DE900 IP PRO / en / A31008-M2210-R101-3x-7619 / glossary.fm / 22.03.2011
Version 2, 27.05.2010
Internet
Global WAN. A series of protocols known as TCP/IP have been defined for exchanging
data.
All network subscribers are identifiable by an 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.
Internet telephony
Voice over IP.
IP (Internet Protocol)
TCP/IP protocol on the Internet. IP is responsible for the addressing of subscribers in a
network using IP addresses, and routes data from a sender to the recipient. IP deter-
mines the paths (routing) along which the data packets travel.
There are standard IPv4 and IPv6 protocols; the essential difference is the structure of
the IP addresses.
IP address
A unique address for a network component within a network based on the TCP/IP pro-
tocols (e.g., LAN, Internet). On the Internet, domain names are usually assigned
instead of IP addresses. DNS assigns the corresponding IP address to the domain
name.
The IPv4 IP address has four parts (decimal numbers between 0 and 255) separated by
full stops (e.g., 230.94.233.2).
The IP address is made up of the network number and the number of the network sub-
scriber (e.g., phone). Depending on the subnet mask, the first, second or third part
makes up the network number and the rest of the IP address addresses the network
component. The network number of all the components in any one network must be
identical.
IP addresses can be assigned automatically with DHCP (dynamic IP addresses) or man-
ually (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
(Ethernet).
LDAP
Lightweight Directory Access Protocol
Service for managing directories across a network.
LDAP is used to store and access information about individuals who are part of an
organisation (e.g., employees).
