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User Manual
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Mbit/s
Megabit per second
A unit used to express the speed of a network.
NAPT
Network Address Port Translation
NAPT enables a local area network (LAN) to use one set of IP addresses for internal traffic
and a second set of addresses for external traffic.
PPPoE
Point-to-Point Protocol over Ethernet
PPPoE is a network protocol for encapsulating PPP frames in Ethernet frames. It is used
mainly with DSL services. It offers standard PPP features such as authentication,
encryption, and compression.
Protocol
On the Internet, "protocol" usually refers to a set of rules that define an exact format for
communication between systems.
Server
A computer or program that responds to commands from a client. For example, a file
server may contain an archive of data or program files. When a client submits a request
for a file, the server transfers a copy of the file to the client.
Subnet mask
The technique used by the IP protocol to determine which network segment packets are
destined for. The subnet mask is a binary pattern that is stored in the client machine,
server or router, and is matched with the IP address.
TCP
Transmission Control Protocol
The reliable transport protocol within the TCP/IP protocol suite. TCP ensures that all data
arrive accurately and 100% intact at the other end. TCP's unreliable counterpart is UDP,
which is used for streaming media, VoIP and videoconferencing.
TCP/IP
A suite of communications protocols used to connect hosts on the Internet. TCP/IP uses
several protocols, the two main ones being TCP and IP.
UDP
User Datagram Protocol
One of the TCP/IP suite of protocols for data transfer, which allows an application program
on one machine to send a datagram to an application program on another machine.
URL
Universal Resource Locator
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The global address of documents and other resources on the World Wide Web.
USB
Universal Serial Bus
USB is a serial protocol and physical link, which transmits all data differentially on a single
pair of wires. Another pair provides power to downstream peripherals.
Virtual server
A virtual server allows you to direct incoming traffic from the Internet (identified by
protocol and external port) to an internal server with a private IP address on the LAN.
WAN
Wide Area Network
WAN usually refers to a network which covers a large geographical area, and uses
communications circuits to connect the intermediate nodes. A major factor impacting
WAN design and performance is a requirement that they lease communications circuits
from telephone companies or other communications carriers.
Wi-Fi
Wireless Fidelity
A wireless data networking protocol generally used to connect PCs to a network. Also
known as 802.11b and WLAN (Wireless LAN), it is the most common means of wireless
networking and operates at 2.4 GHz.
WPA-PSK
Wi-Fi Protected Access-Pre Shared Key
WPA is an industry standard based on a subset of an early draft of 802.11i. WPA replaces
WEP's keying mechanism with a more robust system, called Temporal Key Integrity
Protocol (although TKIP is still based on RC4 encryption). (See full description of TKIP).
WPA adds a strong message integrity check and allows for authentication using 802.1X.
WEP
Wired Equivalent Privacy
Part of the IEEE 802.11 standard (ratified in September 1999), and is a scheme used to
secure wireless networks (Wi-Fi). Because a wireless network broadcasts messages using
radio, it is particularly susceptible to eavesdropping; WEP was designed to provide
comparable confidentiality to a traditional wired network, hence the name.
Issue: 01(2009-03-16)
Part Number: 202089

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