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Global IP address
See
Public IP address
Half duplex
Operating mode for data transmission. Only one side can send and/or receive data at
the same time.
See also:
Full duplex
HTTP proxy
An HTTP proxy is a
Server
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 Electronic Engineers
The IEEE is an international body for defining network standards, especially for stand-
ardising
LAN
technologies, transfer protocols, data transfer speeds and wiring.
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.
Internet
The Internet is a wide-area network (WAN) linking several million users around the
world. A number of
known collectively as
tified by an
IP
address. Servers are addressed by
Domain names are assigned to IP addresses by the Domain Name Service (DNS).
These are some of the main Internet services:
Electronic mail (e-mail)
u
The World Wide Web (WWW)
u
File transfer (FTP)
u
Discussion forums (Usenet / Newsgroups)
u
Internet service provider
An Internet service provider offers access to the
that network components use for their
Gateway
Protocol
that enables an Internet computer to inform neighbouring
Protocols
have been created for exchanging data, and these are
TCP/IP
protocol stack. All participants on the Internet can be iden-
Internet
Domain names
(e.g. gigaset.com).
Internet
for a fee.
Glossary
traffic. All
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