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Glossary
Gateway
A gateway is a device used to connect networks with completely different architectures
(addressing, protocols, application interfaces, etc.). Although it is not totally correct, the
term is also used as a synonym for Router.
See also
Bridge,
Hub, Router,
Global IP address
See
Public IP address
Half duplex
Operating mode for data transfer. Only one party can receive or send data at any one
time.
See also
Full duplex
HTTP proxy
An HTTP proxy is a
requests are sent via the proxy.
Hub
A hub connects several network components in a star-topology network by sending all
the data it receives from one network component to all the other network components.
See also Switch, Bridge, Router,
IEEE
Institute of Electrical and Electronics Engineers
IEEE is an international body that defines network standards, especially to standardise
LAN
technologies, transfer protocols, data transfer speeds and wiring.
IEEE 802.11
IEEE
802.11 is a standard for wireless LANs operating in the 2.4 GHz band. In so-called
Infrastructure mode
can connect with each other spontaneously
IGMP
Internet Group Management Protocol
IGMP is an Internet
routers that it is a member of a multicast group. With multicasting, a computer can send
content on the Internet to several other computers that have registered an interest in
the first computer's content. Multicasting can, for example, be used for multimedia pro-
grams for media streaming to recipients that have set up multicast group membership.
Infrastructure mode
Infrastructure mode is a way of operating wireless local networks (WLANs) in which an
Access point
handles the data traffic. Network components cannot establish a direct
connection with each other as is the case in
110
Switch
Server
that network components use for their
Gateway
terminals can be connected to a base station
Protocol
that enables an Internet computer to inform neighbouring
(Ad-hoc
mode).
Ad-hoc
mode.
Internet
traffic. All
(Access
point) or they
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