Siemens Gigaset S450 IP User Manual page 116

Internet
Global WAN. A series of protocols have
been defined for exchanging data,
known by the name TCP/IP.
Every Network subscribers is identifi-
able via its 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 parties 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 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.
Local SIP Port
See SIP port/Local SIP port.
M
MAC address
Media Access Control Address
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
network.
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.
Glossary
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