Gigaset C460 IP Manual page 73

Glossary
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 by IP addresses. DNS assigns
domain names to IP addresses.
Important services on the Internet
include the World Wide Web (WWW),
Email, 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 the addressing of sub-
scribers 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.
IP address
A unique address for a network compo-
nent within a network on the basis of
the TCP/IP protocols (e.g. LAN, Inter-
net). 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 consists of four parts
(decimal numbers between 0 and 255)
separated by points (e.g.
230.94.233.2).
The IP address is made up of the net-
work number and the number of the
network subscriber (e.g. phone).
Depending on the subnet mask, the
front one, two or three parts make up
of the network number and the rest of
the IP address addresses the network
components. 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.
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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.
Local SIP Port
See SIP port/Local SIP port.
M
MAC Address (Media Access Control)
Hardware address by means of which
each network device (e.g. network
card, switch, phone) can be uniquely
identified worldwide. It is composed of
six parts (hexadecimal numbers), sepa-
rated by a "-" (e.g. 00-90-65-44-00-3A).
The MAC address is assigned by the
manufacturer and cannot be changed.
Mbps
Million bits per second
Unit of the transmission speed in a net-
work.
MRU
Maximum Receive Unit
Defines the maximum user data vol-
ume within a data packet.
MTU
Maximum Transmission Unit
Defines the maximum length of a data
packet that can be carried over the net-
work at a time.