Siemens Gigaset WLAN Operating Instructions Manual page 117

Glossary
DSL
Digital Subscriber Line
DSL is a data transmission technique in which a connection to the Internet can be run
at 1.5 Mbps over normal telephone lines. A DSL connection is provided by an Internet
Provider. It requires a DSL modem.
Dynamic IP address
A dynamic IP address is assigned to a network component automatically by the DHCP.
This allows the IP address of a network component to change every time it logs on or in
certain time intervals.
See also: Static IP address
DynDNS
Dynamic DNS
The assignment of Domain names and IP addresses is handled by the Domain Name
Service (DNS). For Dynamic IP addresses this service is now enhanced with so-called
Dynamic DNS (DynDNS). It enables the use of a network component with a dynamic IP
address as Server on the Internet. DynDNS ensures that a service can always be
addressed on the Internet under the same Domain name regardless of the current IP
address.
Encryption
Encryption protects confidential information against unauthorised access. With an
encryption system data packets can be sent securely over a network. The Gigaset WLAN
Repeater uses WEP encryption for secure data transmission over wireless networks.
Ethernet
Ethernet is a network technology for local networks (LAN) and has been defined by the
IEEE as Standard IEEE 802.3. Ethernet uses a baseband cable with a transmission rate
of 10 or 100 Mbps.
Firewall
Firewalls are used by network operators as protection against unauthorised external
access. This involves a whole bundle of hardware and software actions and technolo-
gies that monitor and control the data flow between the private network to be pro-
tected and an unprotected network such as the Internet.
See also: NAT
Flat rate
Flat rate is a particular billing system for Internet connections. The Internet Provider
charges a monthly fee regardless of the duration and number of logins.
Full duplex
Data transmission mode in which data can be sent and received at the same time.
See also: Half duplex
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