Glossary

Dynamic IP address

A dynamic IP address is assigned to a network component automatically by the DHCP. This means that the IP address of a network component can change with every login or at certain intervals.

See also: Static (fixed) IP address

DynDNS

Dynamic DNS

Domain Name Service (DNS) is used to assign Domain names and IP addresses. For Dynamic IP addresses this service is now enhanced with so-called Dynamic DNS (DynDNS). This permits the use of a PC with a changing 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 SE505 dsl/cable 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 base band 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 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 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

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

Half duplex

Operating mode for data transfer. Only one party can receive or send data at a time. See also: Full duplex

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Siemens SE505 Dynamic IP address, DynDNS, Encryption, Ethernet, Firewall, Flat rate, Full duplex, Gateway, Half duplex