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Glossary
IBSS
An independent basic service set (IBSS) is an
Ad hoc Mode Wireless Networking Framework
in
which stations communicate directly with each other.
IEEE
The Institute of Electrical and Electronic Engineers (IEEE) is an international standards body
that develops and establishes industry standards for a broad range of technologies, including the
802 family of networking and wireless standards. (See 802, 802.1x, 802.11, 802.11a, 802.11b,
802.11e, 802.11f, 802.11g, and 802.11i.)
For more information about IEEE task groups and standards, see http://standards.ieee.org/.
Infrastructure Mode
Infrastructure Mode is a
Wireless Networking Framework
in which wireless stations communicate
with each other by first going through an
Access
Point. In this mode, the wireless stations can
communicate with each other or can communicate with hosts on a wired network. The access
point is connected to a wired network and supports a set of wireless stations.
An infrastructure mode framework can be provided by a single access point (BSS) or a number
of access points (ESS).
Intrusion Detection
The Intrusion Detection System (IDS) inspects all inbound network activity and reports suspicious
patterns that may indicate a network or system attack from someone attempting to break into the
system. It reports access attempts using unsupported or known insecure protocols.
IP
The Internet Protocol (IP) specifies the format of packets, also called datagrams, and the addressing
scheme. IP is a connectionless, best-effort packet switching protocol. It provides packet routing,
fragmentation and reassembly. It is combined with higher-level protocols, such as
TCP
or UDP, to
establish the virtual connection between destination and source.
The current version of IP is IPv4. A new version, called IPv6 or IPng, is under development. IPv6
is an attempt to solve the shortage of IP addresses.
IP Address
Systems are defined by their IP address, a four-byte (octet) number uniquely defining each host
on the Internet. It is usually shown in form 192.168.2.254. This is called dotted-decimal notation.
An IP address is partitioned into two portions: the network prefix and a host number on that network.
A
Subnet Mask
is used to define the portions. There are two special host numbers:
• The
Network Address
consists of a host number that is all zeroes (for example, 192.168.2.0).
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