Gigaset DE310 IP PRO / en / A31008-M2218-L101-5-7619 / glossary.fm / 27.09.2012
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Glossary
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 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 trans-
fer 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 net-
work using IP addresses, and routes data from a sender to the recipient. IP determines 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 proto-
cols (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 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
(Ethernet).
