Vivato VA4200, Руководство пользователя

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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 , 802.11b , 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 AP/Bridge . In this mode, the wireless stations can communicate with
each other or can communicate with hosts on a wired network. The AP/Bridge is connected to a wired
network and supports a set of wireless stations.
An infrastructure mode framework can be provided by a single AP/Bridge ( BSS ) or a number of AP/
Bridges ( 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 re-assembly. 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
).
• The Broadcast Address consists of a host number that is all ones (for example,
192.168.2.255
).
There are a finite number of IP addresses that can exist. Therefore, a local area network typically uses one
of the
IANA -designated address ranges for use in private networks. These address ranges are: