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Appendix C: Glossary
¾ 2x to 3x eXtended Range
™
WLAN Transmission Technology - The WLAN device with 2x
to 3x eXtended Range™ WLAN transmission technology make its sensitivity up to 105 dB,
which gives users the ability to have robust, longer-range wireless connections. With this
range-enhancing technology, a 2x to 3x eXtended Range™ based client and access point can
maintain a connection at as much as three times the transmission distance of traditional
802.11b and 802.11g products, for a coverage area that is up to nine times greater. A
traditional 802.11b and 802.11g product transmission distance is about 300m, a 2x to 3x
eXtended Range™ based client and access point can maintain a connection transmission
distance may be up to 830m.
¾ 802.11b - The 802.11b standard specifies a wireless networking at 11 Mbps using
direct-sequence spread-spectrum (DSSS) technology and operating in the unlicensed radio
spectrum at 2.4GHz, and WEP encryption for security. 802.11b networks are also referred to
as Wi-Fi networks.
¾ 802.11g - specification for wireless networking at 54 Mbps using direct-sequence
spread-spectrum (DSSS) technology, using OFDM modulation and operating in the
unlicensed radio spectrum at 2.4GHz, and backward compatibility with IEEE 802.11b devices,
and WEP encryption for security.
¾ DDNS (Dynamic Domain Name System) - The capability of assigning a fixed host and domain
name to a dynamic Internet IP Address.
¾ DHCP (Dynamic Host Configuration Protocol) - A protocol that automatically configure the
TCP/IP parameters for the all the PC(s) that are connected to a DHCP server.
¾ DMZ (Demilitarized Zone) - A Demilitarized Zone allows one local host to be exposed to the
Internet for a special-purpose service such as Internet gaming or videoconferencing.
¾ DNS (Domain Name System) – An Internet Service that translates the names of websites into
IP addresses.
¾ Domain Name - A descriptive name for an address or group of addresses on the Internet.
¾ DoS (Denial of Service) - A hacker attack designed to prevent your computer or network from
operating or communicating.
¾ DSL (Digital Subscriber Line) - A technology that allows data to be sent or received over
existing traditional phone lines.
¾ ISP (Internet Service Provider) - A company that provides access to the Internet.
¾ MTU (Maximum Transmission Unit) - The size in bytes of the largest packet that can be
transmitted.
¾ NAT (Network Address Translation) - NAT technology translates IP addresses of a local area
network to a different IP address for the Internet.
¾ PPPoE (Point to Point Protocol over Ethernet) - PPPoE is a protocol for connecting remote
hosts to the Internet over an always-on connection by simulating a dial-up connection.
¾ SSID - A Service Set Identification is a thirty-two character (maximum) alphanumeric key
identifying a wireless local area network. For the wireless devices in a network to
communicate with each other, all devices must be configured with the same SSID. This is
typically the configuration parameter for a wireless PC card. It corresponds to the ESSID in
the wireless Access Point and to the wireless network name.
¾ WEP (Wired Equivalent Privacy) - A data privacy mechanism based on a 64-bit or 128-bit or