Siemens CP 1515 Instruções de Operação descarregar pdf (Página 98)

Glossary

Operating Instructions SCALANCE W 744-1PRO

98 C79000-G8976-C185-03

IEEE 802.1x

The heart of the standard is the use of a Radius server as the authen-

tication server. In addition to this, in IEEE 802.1x, the entire communi-

cation is encrypted.

RADIUS

Remote Authentication Dial - In User Service for secure communica-

tion networks

Roaming

Free movement of wireless LAN nodes even beyond the boundaries

of an access point's cell. The nodes and can move from one cell to

the next without any noticeable interruption.

RTS/CTS

Request to send/Clear to send. Scheme for avoidance of collisions.

SNMP

Simple Network Management Protocol. Standardized protocol for

transporting network management information.

TKIP

Temporal Key Integrity Protocol. Scheme for cyclic changing of keys

in WLANs.

WBM

Web Based Management. HTTP-based configuration method in which

an HTTP server is used in the SCALANCE W744.

WDS

Wireless Distribution System. Radio links for connecting the access

points for an extended service set (ESS)

WEP

WEP (Wired Equivalence Privacy) is an optional part of the IEEE

802.11 standard. WEP specifies methods of authentication and en-

cryption working with fixed keys stored on the device. All devices that

want to access a network in which WEP is used must first be supplied

with the same keys. The keys can only be changed manually.

Wi-Fi

Wireless Fidelity. Specification for wireless networks.

WPA

WPA (Wi-Fi Protected Access) is a method specified by the Wi-Fi

Alliance to close security gaps in WEP. Authentication using a server

is stipulated (802.1x). The dynamic exchange of keys at each frame

introduces further security. The type of encryption can be TKIP or

AES.

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Siemens CP 1515 Instruções de Operação Página 98