Glossary

DynDNSDynamic 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 standard 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: NATFlat rate

Flat rate is a particular billing system for Internet connections. The Internet service provider 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 addressSee Public IP address

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