Bedienungsanleitung Netgear WGR614v7 (Seite 150 von 154) (Englisch)

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54 Mbps Wireless Router WGR614v7 Reference Manual

-10 Glossary

April 2006

Satellite broadband

A wireless high-speed Internet connection provided by satellites. Some satellite broadband connections are

two-way—up and down. Others are one-way, with the satellite providing a high-speed downlink and then

using a dial-up telephone connection or other land-based system for the uplink to the Internet.

Server

A computer that provides its resources to other computers and devices on a network. These include print

servers, Internet servers and data servers. A server can also be combined with a hub or router.

Site survey

The process whereby a wireless network installer inspects a location prior to putting in a wireless network.

Site surveys are used to identify the radio- and client-use properties of a facility so that access points can be

optimally placed.

SSID (also called ESSID)

A 32-character unique identifier attached to the header of packets sent over a WLAN that acts as a password

when a mobile device tries to connect to the BSS. (Also called ESSID.) The SSID differentiates one WLAN

from another, so all access points and all devices attempting to connect to a specific WLAN must use the

same SSID.

A device will not be permitted to join the BSS unless it can provide the unique SSID. Because an SSID can

be sniffed in plain text from a packet, it does not supply any security to the network. An SSID is also

referred to as a Network Name because essentially it is a name that identifies a wireless network.

SSL (Secure Sockets Layer)

Commonly used encryption scheme used by many online retail and banking sites to protect the financial

integrity of transactions. When an SSL session begins, the server sends its public key to the browser. The

browser then sends a randomly generated secret key back to the server in order to have a secret key

exchange for that session.

Subnetwork or Subnet

Found in larger networks, these smaller networks are used to simplify addressing between numerous

computers. Subnets connect to the central network through a router, hub or gateway. Each individual

wireless LAN will probably use the same subnet for all the local computers it talks to.

Switch

A type of hub that efficiently controls the way multiple devices use the same network so that each can

operate at optimal performance. A switch acts as a networks traffic cop: rather than transmitting all the

packets it receives to all ports as a hub does, a switch transmits packets to only the receiving port.

TCP (Transmission Control Protocol)

A protocol used along with the Internet Protocol (IP) to send data in the form of individual units (called

packets) between computers over the Internet. While IP takes care of handling the actual delivery of the

data, TCP takes care of keeping track of the packets that a message is divided into for efficient routing

through the Internet.

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