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Glossary
Gigaset SX541 WLAN dsl / englisch / A31008-M1025-L101-1-7619 / glossary.fm / 21.07.2005
Sc
hablone 2005_05_02
Port
Data is exchanged between two applications in a network across a port.The port
number addresses an application within a network component. The combination of
/port number uniquely identifies the recipient or sender of a data packet within
a network. Some applications (for example Internet services such as HTTP or FTP) work
with fixed port numbers, others are allocated a free port number whenever they need
one.
Port Forwarding
In port forwarding the Gigaset SX541 WLAN dsl directs data packets from the
that are addressed to a particular
to the corresponding port of the appropriate net-
work component. This enables servers within the local area network to offer services on
the Internet without them needing a
See also:
PPPoA
Point-to-Point Protocol over ATM
PPPoA is a
for connecting network components in a local Ethernet network to
the
via an ATM network.
PPPoE
Point-to-Point Protocol over
PPPoE is a
for connecting network components in a local Ethernet network to
the
via a modem.
Private IP address
The private
(also known as the local IP address) is a network component's
address within the local area network (
). The network operator can assign any
address he or she wants. Devices that act as a link from a local network, such as the
Gigaset SX541 WLAN dsl, have a private and a
Protocol
A protocol describes the agreements for communicating in a network. It contains rules
for opening, administering and closing a connection, as well as about data formats,
time frames and handling possible errors. Communications between two applications
require different protocols at various levels, for example the
protocols for the
Public IP address
The public
(also known as the global IP address) is a network component's
address on the
. It is assigned by the
. Devices that create a link
from a LAN to the Internet, such as the Gigaset SX541 WLAN dsl, have a public and a
Radio network
