Nexxt Solutions - NexxtGate Wireless Access Point
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Appendix D: Glossary
2x to 3x eXtended Range™ WLAN Transmission Technology
- The WLAN device with 2x to 3x
eXtended Range™ WLAN transmission technology is able to increase its sensitivity up to 105
dB, providing a robust, longer-range wireless connection in the coverage area. With this
range-enhancing technology, a 2x to 3x eXtended Range™ based-client and access point can
maintain up to three times the transmission distance of traditional 802.11b and 802.11g
solutions. While the typical transmission distance of 802.11b and 802.11g devices is about
300m, a 2x to 3x eXtended Range™ based client and access point is able to maintain a much
higher transmission range of nearly 830m.
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.
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.
DDNS (Dynamic Domain Name System)
- The capability of assigning a fixed host and domain
name to a dynamic Internet IP Address.
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.
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.
DNS (Domain Name System)
– An Internet Service that translates the names of websites into
IP addresses.
Domain Name
- A descriptive name for an address or group of addresses on the Internet.
DoS (Denial of Service)
- A hacker attack designed to prevent your computer or network from
operating or communicating.
DSL (Digital Subscriber Line)
- A technology that allows data to be sent or received over existing
traditional phone lines.
ISP (Internet Service Provider)
- A company that provides access to the Internet.
MTU (Maximum Transmission Unit)
- The size in bytes of the largest packet that can be
transmitted.
NAT (Network Address Translation)
- NAT technology translates IP addresses of a local area
network to a different IP address for the Internet.
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.
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.
WEP (Wired Equivalent Privacy)
- A data privacy mechanism based on a 64-bit or 128-bit or
152-bit shared key algorithm, as described in the IEEE 802.11 standard.
Wi-Fi
- is a trademark of the Wi-Fi Alliance, founded in 1999 as Wireless Internet Compatibility
Alliance (WICA), comprising more than 300 companies, whose products are certified by the
Wi-Fi Alliance, based on the IEEE 802.11 standards (also called Wireless LAN (WLAN) and
Wi-Fi). This certification warrants interoperability between different wireless devices.
WISP
- Wireless Internet Service Providers (WISPs) are Internet service providers with networks
built around wireless networking. The technology used ranges from commonplace Wi-Fi mesh
networking or proprietary equipment designed to operate over open 900MHz, 2.4GHz, 4.9, 5.2,
5.4, and 5.8GHz bands or licensed frequencies in the UHF or MMDS bands.
WLAN (Wireless Local Area Network)
- A group of computers and associated devices
communicate with each other wirelessly, which network serving users are limited in a local area.
