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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
address/port number uniquely identifies the recipient or sender of a data packet within
a network. Some applications (e.g. 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 SE681 WiMAX directs data packets from the Internet that are
addressed to a particular
component. This enables servers within the local network to offer services on the Inter-
net without them needing a public IP address. See also:
Protocol
A protocol describes the agreements for communicating on 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, e.g. the
Provider
A provider (Internet Service Provider) offers access to the Internet for a fee.
RJ
Registered Jack. Standardised connection, also known as a modular jack.
Router
A router directs data packets from one local area network (LAN) to another via the fast-
est route. A router enables the connection between networks of different network tech-
nologies and this is performed on the basis of a common protocol. For example, it can
link a local network with WiMAX technology to the Internet.
RSSI
Received Signal Strength Indication. Characteristic value for the signal strength of
radio connections, used by communication devices for the automatic selection of a suit-
able channel.
Server
A server makes services available to other network components (clients). The term
"server" is often used to refer to a PC. However it can also mean an application that
provides a particular service such as DNS,
SMTP
Simple Mail Transfer Protocol. The SMTP protocol is a
the exchange of electronic post on the Internet. Your
to an SMTP server.
Port
to the corresponding port of the appropriate network
DHCP
Virtual server
TCP/IP
protocols for the Internet.
or a Web service.
TCP/IP
protocol and regulates
Provider
provides you with access
Glossary
IP
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