Siemens Gigaset SE587 WLAN dsl Specifications download pdf (Page 81)

Glossary

Gigaset SE587 WLAN dsl / eng / A31008-N1083-L171-1-7619 / glossary.fm / 12.12.2007

Schablone 2004_08_26

Subnet mask

The subnet mask determines how many parts of IP addresses of a network represent the

network number and how many parts the computer number.

If the subnet mask is in a network that is administered by the Gigaset SE587 WLAN dsl,

for example 255.255.255.0, the first three parts of the IP address form the network

number and only the final part can be used for assigning host numbers. The first three

parts of the IP address of all network components are therefore always the same in this

case.

Switch

A switch, like a Hub, is an element used to link different network segments or compo-

nents. Unlike a hub however, the switch has its own intelligence that enables it to for-

ward packets to only the subnet or network component for which they are intended.

See also: UDP

TCP/IP

Protocol family on which the Internet is based. IP forms the basis for every computer-to-

computer connection. TCP provides applications with a reliable transmission link in the

form of a continuous data stream. TCP/IP is the basis on which services such as WWW,

Mail and News are built. There are other protocols as well.

TKIP

Temporal Key Integrity Protocol

TKIP is a security protocol used for data Encryption in wireless networks. It is used for

WPA encryption. It was designed to correct deficiencies in the older Wired Equivalent

Privacy (WEP) standard. For this reason TKIP provides per-packet key mixing, a message

integrity check, and a rekeying mechanism. TKIP ensures that every data packet is sent

with its own unique encryption key.

UDP

User Datagram Protocol

UDP is a Protocol of the TCP/IP protocol family that handles data transport between two

communication partners (applications). Unlike TCP, UDP is a non-session based proto-

col. It does not establish a fixed connection. The recipient is responsible for making sure

the data is received. The sender is not notified about whether it is received or not.

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Siemens Gigaset SE587 WLAN dsl Specifications Page 81