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Ethernet, Firewall, Encryption – Siemens SX763 User Manual

Page 139: Dyndns, T up, Flat rate, With, Gateway, Static ip address

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139

Glossary

Gigaset SX763 WLAN dsl / en / A31008-M707-R131-2-7619 / glossary.fm / 08.12.2006

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DynDNS
Dynamic DNS
The assignment of

Domain names

and

IP addresses

is handled by the Domain Name

Service (

DNS

). This service is now enhanced with so-called Dynamic DNS (DynDNS) for

Dynamic IP addresses

. This enables the use of a network component with a dynamic IP

address as a

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
SX763 WLAN dsl offers

WEP

encryption and

WPA

for secure data transfer over wireless

networks.

Ethernet
Ethernet is a network technology for local networks (

LANs

) defined by the

IEEE

as stand-

ard IEEE 802.3. Ethernet uses a base-band cable with a transfer rate of 10 or 100

Mbps

.

Static IP address
A static

IP address

is assigned to a network component manually during network con-

figuration. Unlike the

Dynamic IP address

, a static (fixed) IP address never changes.

Firewall
Firewalls are used by network operators as protection against unauthorised external
access. This involves a whole bundle of hardware and software actions and technologies
that monitor and control the data flow between the private network to be protected 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 service pro-

vider

charges a monthly fee regardless of the duration and number of logins.

Full duplex
Data transfer mode in which data can be sent and received at the same time.
See also:

Half duplex

Gateway
A gateway is a device for connecting networks with completely different architectures
(addressing, protocols, application interfaces etc.). Although it is not totally correct, the
term is also used as a synonym for

Router

.

Global IP address
See

Public IP address