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Ip address, L2tp, Ipsec – Siemens SE505 User Manual

Page 124: Mac address, Ip pool range, Ip addresse, Address

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Glossary

Gigaset SE505 dsl/cable / English / A31008-E505-B100-1-7619 / glossary.fm / 16.07.2003

IP address
An IP address is the unique network-wide address of a network component in a network

based on the

TCP/IP

protocol (e.g. in a local network (

LAN

) or on the

Internet

). The IP

address has four parts (decimal numbers) separated by periods (e.g. 192.168.2.1). The

IP address comprises the network number and the computer number. Depending on the

Subnet mask

one, two or three parts form the network number, the remainder the

computer number. You can find out the IP address of your PC using the ipconfig

command.
IP addresses can be assigned manually (see

Static (fixed) IP address

) or automatically

(see

Dynamic IP address

).

On the Internet

Domain names

are normally used instead of the IP addresses.

DNS

is

used to assign Domain names to IP addresses.
The Gigaset SE505 dsl/cable has a

Private IP address

and a

Public IP address

.

IP Pool Range
The Gigaset SE505 dsl/cable's IP address pool defines a range of

IP addresses

that the

router's

DHCP Server

can use to assign

Dynamic IP addresses

.

IPSec
Internet Protocol Security
The term IPSec covers a number of

Protocols

used for the encrypted transmission of data

packets over the

Internet

. IPSec uses digital certificates for device authentication. IPSec

is offered by Internet Service Providers for implementing Virtual Private Networks (

VPN

).

See also:

PPTP

,

L2TP

ISP

Internet Service Provider

L2TP
Layer Two Tunneling Protocol
L2TP is an extension of

PPTP

and is offered by

Internet Service Providers

for

implementing Virtual Private Networks (

VPN

). It covers most of the features of PPTP but

with less overhead and is better for managed networks.
LAN
Local Area Network
A Local Area Network links network components so that they can exchange data and

share resources. The physical range is restricted to a particular area (a site). As a rule the

users and operators are identical. A LAN can be connected to other LAN's or to a wide-

area network (

WAN

) such as the

Internet

.

With the Gigaset SE105 dsl/cable you can set up both a wired local

Ethernet

network and

a wireless

IEEE 802.11g

-standard network.

Local IP address
See

Private IP address

MAC address
Media Access Control
The MAC address is used for the globally unique identification of a

Network adapter

. It

comprises six parts (hexadecimal numbers), e.g. 00-90-96-34-00-1A. The MAC address

is assigned by the network adapter manufacturer and cannot be changed.