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Glossary
802.11b
: A family of IEEE-defined specifications for wireless networks. The 802.11b
standard supports data transfer rates up to 11 Mbits/sec in the 2.4 GHz band using DSSS
technology. Also known as WiFi.
Access Point
: See Wireless Access Point.
Ad Hoc
: A wireless computer-to-computer LAN. An Ad Hoc network can consist of two
devices with wireless adapters, and does not require a WAP, router, or gateway. Also
known as peer-to-peer mode. See also infrastructure.
Associated Client
: See Client PC.
Beacon
: A packet that identifies the location of the base wireless station and allows the
mobile clients to synchronize with the base station.
Bridge
: An intelligent, internetworking device that forwards or filters packets between
different networks based on data link layer (MAC) address information.
Broadband
: A method of communication where a wide band of frequencies is available
to transmit voice, data, and video signals over a single medium. Information can be sent
on many different channels, allowing more information to be sent in a given period of
time (the same way multiple lanes allow more cars on the road).
BSSID
(Basic Service Set Identifier): The MAC address of the wireless router. A BSS
consists of a Wireless Access Point and the adapters associated with it.
Cable Modem:
A device that provides Internet access to a user by connecting a computer
to the cable television network, which in turn connects to the Internet. Cable modem
users have a continuous always-on connection to the Internet.
Channel
: A specific carrier frequency used in wireless communications. In order to
communication with each other, each wireless device must be on the same channel.
Client PC
: Any computer connected to the router, whether wired or wireless.
Daisy Chain:
A hardware configuration where devices are connected one after the other
in series. Transmitted signals proceed down the chain from the first device to the second,
and so on.
Default Gateway
: A routing device used to forward traffic that is not on the local subnet.
When a network device wants to send an IP packet to a destination that is not on the
same network, the device sends the packet to a default gateway, which will send it out
towards the destination.
Denial of Service Attack:
A method used by hackers to prevent legitimate users from
accessing a service or resource. A DoS attack usually involves the hacker sending a large
number of request packets to a targeted network service, making it unusable for other
users.
DHCP
(Dynamic Host Configuration Protocol): A protocol that automatically assigns
dynamic IP addresses to PC/LAN clients logging in to a TCP/IP network. Without
DHCP, IP addresses must be logged in manually at each computer.
Summary of Contents for WAP1011BB
Page 32: ...Revised October 30 2003 ...