Glossary
MoRoS GPRS 2.1 PRO
mobile network in order to obtain higher transmission rates.
GSM:
The Global System for Mobile communications is a mobile network for
language and data transmission.
ICMP:
The Internet Control Message Protocol is a protocol which is often used
for the control of a network. The program “ping” for example uses
ICMP.
IP-Address: The Internet Protocol Address is the IP address of a device inside a
network at which it can be reached. It consists of four bytes and is
packed decimal (for example 192.168.1.1).
ISP:
The Internet Service Provider can be dialled up via a switched dial-up
circuit (e.g. by an analogue modem or ISDN-TA). Then the ISP provides
an internet access via this switched line.
LAN:
The Local Area Network is a network of computers which are located
relatively close together.
MAC Address:
The Media Access Control Address. A MAC is part of an Ethernet
interface. Each Ethernet interface has a unique number throughout the
world called the MAC Address.
MSN:
Multiple Subscribers Number. Any devices being busy at a SO bus re-
quire a terminal identification in the form of the terminal number.
Net Mask: It defines a logical grouping of IP addresses in network address and
device addresses.
Network Address: It consists of the overlapping of the IP address and of the net
mask. It always ends with “0”. The net mask (e.g. 255.255.255.0) is bi-
nary overlaid on the IP address (e.g. 192.168.1.1), the remaining “visi-
ble” part of this overlapping (masquerade) is the network address (here:
192.168.1.0).
Network Rules:
They decide how the different data packets are handled inside a
network device. Thus data packets can for example be locked for or by
certain network users or they can even be redirected.
PAP:
The Password Authentication Protocol is often applied to PPP connec-
tions.
Port
:
(1) Socket on the switch to which Ethernet devices are connected
(2) Component of a socket for data connections
Port forwarding: Network rules which redirect data packets from certain senders
to certain receivers of a network.
PPP:
The Point to Point Protocol is a protocol connecting two machines via a
serial line in a way that they are able to exchange TCP/IP packets.
Router:
This is a machine which renders possible inside a network that the arriving
data of a protocol are forwarded on to the provided destination net or sub-
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Summary of Contents for MoRoS GPRS 2.1 PRO
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