Gigaset SE551 WLAN dsl/cable Windows ME

Internet

Modem Windows 2000

local network

Windows XP

Windows 98 SE

You can set up the network in a number of ways. You can
u Use a Gigaset SE551 WLAN dsl/cable to set up a wired local network (see page 5). u Use the Gigaset SE551 WLAN dsl/cable to set up a local network comprising wireless
and wired network components (see page 8).
u Use the wireless network adapters Gigaset PC Card 108, a Gigaset USB Adapter 108
or a Gigaset USB Stick 108 to set up a wireless network without routers, i.e. connect PCs directly with each other (see page 6), or connect PCs to a Gigaset SE551 WLAN dsl/cable (see page 7). u Use one or more Gigaset WLAN Repeaters to extend the range of your wireless local network (see page 10).
Introduction Wired local network (Ethernet)
In a wired local network the PCs are linked via an Ethernet cable. The Siemens Gigaset SE551 WLAN dsl/cable has four Ethernet LAN ports for connecting four PCs. The PCs must have an Ethernet network adapter that is connected via an Ethernet cable to a LAN port on the router. New PCs frequently come supplied with such a socket. You can buy Ethernet cables (CAT-5) from specialist retailers.

Ethernet

The WAN interface on the Gigaset SE551 WLAN dsl/cable allows all PCs in the network to access the Internet simultaneously. To use this feature you will need the access data from an Internet Service Provider, e. g. T-Online.
Introduction Wireless local network (WLAN)
In a wireless local network (WLAN), the PCs are linked to each other via a wireless connection. The PCs must be equipped with a wireless network adapter (e.g. the Gigaset PC Card 108 or Gigaset USB Adapter). We generally differentiate between two types of wireless networks:
u ad-hoc mode u infrastructure mode

Ad-hoc network

Ad-hoc networking is a new concept in network communications that is rapidly gaining in popularity. Ad-hoc networks do not have any fixed network infrastructure. The mobile network components that communicate with each other directly and without wire connections form the network "ad-hoc", i.e. as and when required. All the stations on the network have the same rights. Ad-hoc networks are used wherever communications networks have to be set up quickly and without any existing network infrastructure and where the participants are on the move. An ad-hoc network is a wireless network set up without using a router.

Wireless local network (WLAN)

((( ))) Access point

The Gigaset SE551 WLAN dsl/cable has four Ethernet interfaces (LAN ports). Up to four PCs can be connected directly to these LAN ports. These PCs also access the Internet via the Gigaset SE551 WLAN dsl/cable. Please note: You can also connect an Ethernet router to a LAN port, providing access to a larger wired network. If you want to connect the Gigaset network to an existing network, a variety of settings need to be taken into account. Therefore we cannot provide a general example for this use; the configuration depends greatly on the networks in question. We advise having configuration of such a network carried out by an expert.
Introduction Extending a wireless network using a repeater
You can use a repeater, e.g. the Gigaset WLAN Repeater 108 to extend the coverage of your wireless network. To do this, set it up at the limit of the range of your wireless network. The Gigaset WLAN Repeater will now transmit data traffic into its own wireless area. This technology allows you to set up wireless networks that cover a much larger area than would be possible with the Gigaset SE551 WLAN dsl/cable alone.
Gigaset WLAN Repeater ((( )))
PCs to be connected in a wireless local network via a Gigaset WLAN Repeater must be equipped with a wireless network adapter.

Introduction Roaming

In a wireless network with several repeaters, roaming allows the connected subscribers (PCs) to move freely between the different repeaters without breaking their contact with the access point. As soon as there is a risk of losing contact, the PC automatically searches for another repeater with a stronger signal. This allows you to set up wireless networks that cover a much larger area than would be possible with just a single access point (and a single additional repeater). Multiple repeaters also allow more subscribers to be served simultaneously. The main area of application for WLANs with roaming is on large company sites and in universities.

Repeater

Access point
In a roaming network, all the users must use the same SSID and encryption. The access point must be connected to a wired network (Ethernet). For details, refer to the operating instructions on the CD supplied.

Possible uses

No matter which type of network you have opted for, Gigaset products for local networks offer a wealth of uses.

u Shared use of files

You can use your Gigaset SE551 WLAN dsl/cable or a PC in the network as a file server. All central data are then stored in a bulk memory connected directly to the USB interface on your Gigaset SE551 WLAN dsl/cable or in the data system of a PC in the network. Users on other PCs can hook up folders or entire drives on this file server to their own PCs and work with them as if they were actually on their local PC. Various access rights can be assigned. How to connect a bulk memory to the Gigaset SE551 WLAN dsl/cable and use it in the network is described in the device's user guide. How to release files on one PC for access to users on other PCs is described in Chapter "Releasing files and printers for shared use": for Windows XP from page 21 for Windows 2000 from page 32 for Windows 98, 98 SE, ME from page 46 How to make released files on other PCs available on your PC is described in Chapter "Using released files and printers": for Windows XP from page 53 for Windows 2000 from page 58 for Windows 98, 98 SE, ME from page 66 u Shared use of printers Printers can be made available to PCs in the network in two ways: directly via the USB interface on your Gigaset SE551 WLAN dsl/cable via the PC on the network to which the printer is connected All users can print their files at these printers. Being directly connected to the Gigaset SE551 WLAN dsl/cable offers the advantage that the printer is always available without having to ensure that a specific PC is switched on. How to connect a printer to the Gigaset SE551 WLAN dsl/cable and use it in the network is described in the device's user guide. How to release a printer on one PC is described in Chapter "Releasing files and printers for shared use": for Windows XP from page 23 for Windows 2000 from page 36 for Windows 98, 98 SE, ME from page 47

u The network has to be set up on all the computers. The Internet protocol (TCP/IP) has
to have been set as the connection method.
u All PCs have to have been assigned to the same network (workgroup). u Users who want to make their files or printer available have to release them on

their PC.

u After that, users who want to use other users' files or printers can make them avail-
able on their PC. This is described in Chapter "Using released files and printers" from page 49.
Network configuration, release and use differ depending on the Windows operating system used. Please note: If you are using Windows 2000 on your network, you have to set up for all users who are to have access to resources on a Windows 2000 PC the appropriate user IDs on the Windows 2000 PC and their own PCs. The following table provides an overview as to where you can find the relevant information. Windows XP Setting up the network Releasing your files Releasing your printers Setting up user names Using files on other PCs Using printers on other PCs page 15 page 21 page 23 page 50 page 53 page 55 Windows 2000 page 24 page 32 page 36 page 29 page 58 page 61 Windows 98 page 37 page 46 page 47 page 63 page 66 page 69
Making your own files and printers available (Windows XP)
To release files or printers on a PC with Windows XP for other users on the network: 1. Configure the network (see below). 2. Select computer names and workgroup (see page 18). 3. Accept network settings (see page 19). 4. Close installation procedures (see page 20). 5. Release files and printer (see page 21).

Configuring the network

Configuring the network in this case means selecting Internet connection as the connection method. You can do this with the network wizard. Launching the network wizard Launch the network wizard as follows:
Open the Control Panel and then Network and Internet Connections.
Now select Set up or change your home or small office network.
This launches the network wizard.
Skip the welcome screen and the checklist by clicking Next each time.
Selecting Internet connection as connection method You will be prompted to select a connection method.
Select Other and confirm with Next.
You will now see a screen listing various connection methods.
Select This computer connects directly to the Internet. The other computers on

Open the Control Panel and then open Users and passwords.
Select Users must enter a user name and password for this computer. Click Add.
Enter a user name of your choice. This must be unique on the network. The boxes
Full name and Description can be left blank.

Confirm this with Next.

Now assign a password and confirm it by entering it again. Confirm this with Next. In the next window you can define the type of access. Select Other, choose Administrators from the selection list and click Finish.
Save the settings with Apply and close user administration with OK.
If you ever want to change your password, open this window again, select the user
name in question and click Set Password.
Open the Desktop and right click the folder or drive you want to release. Now select the entry Share with the left-hand mouse button from the pop-up
Select Share this folder and click New share. Assign a share name and, if you want, a comment of your choice. From now on, your
drive or folder will appear on the network under this name.

Now click Permissions.

Now you can assign user rights to the registered users.

Click Add.

Select the users you created earlier and click Add.
In the next window you can define who should have which access rights to your PC. Normally the read only right is chosen.
Select a user in the upper pane, and then in the lower pane the rights you want to

assign.

To save the settings you have made, click Apply and OK. Close the next window as
well with OK. Close the properties window with OK.
To release printers select Printers and Faxes in the start menu. Right-click the printer you want to release. Now select the entry Sharing with the left-hand mouse button.
Select Shared as and assign a share name. From now on, your printer will be available to all the other users on the network under this name.
If this printer is to be accessed by users with PCs that have a different operating system, you will have to install additional drivers. To do this click Additional drivers. and follow the instructions.
Use Apply to save the current settings. Click OK to close share configuration.
Making your own files and printers available (WIN 98 / 98 SE / ME)
To release files or printers on a PC with Windows 98 for other users on the network: 1. Set up PC as Client for Microsoft Networks (see page 37). 2. Select computer names and workgroup (see page 40). 3. Select type of access control (see page 40). 4. Set TCP/IP protocol (see page 41). 5. Install utilities for file and printer release (see page 44). 6. Release files and printer (see page 46).
Setting up a PC as Client for Microsoft Networks
Before the PCs in your network can access shared resources, you have to define a Microsoft Network, i.e. all the PCs have to be configured as Clients of a Microsoft Network. This can be done as follows:

Using files and printers on the network (Windows XP)
You can use resources on your PC such as files and printers that have been made available by other PCs. If the resource you want to use on your PC is on a Windows 2000 system then you have to set up user accounts for all the users who are to have access. The same user IDs have to be entered as on the releasing system.
Setting up a user account
To set up a user account:
Open the Control Panel and then User accounts.
Select Create new account. Enter a name for the user. Click Next.
Select Limited as account type. Then the newly created user will not have any
administrator rights on your PC.
Click Create account. You will now see the new user account.
You should now assign a password. To do this click the new user account. Select Create Password.
Enter a password and then enter it again as confirmation. Click Create Password.
Using released files and printers Accessing released drives or folders from your PC
You can access drives and folders released on other PCs in two different ways:
u via the My NetworkPlaces of your PC (see page 66).
You should choose this alternative if for example you want to copy files or folders from another PC to your own or vice versa.
u by hooking on to your PC's file system (see page 53).
You should choose this alternative if you want to work directly with the files or folders of the other PC. In this case, hook on an entire released drive or folder in your PC's file system and work with the files as if they were files on your PC. Please note: Drives or folders can be simultaneously hooked onto several PCs. It is therefore possible for other users to access the data. Most applications (e. g. word processing software) lock files once they have been opened. This prevents inconsistent data pools. If you cannot open a file because it is locked, you will normally see a message to that effect. To hook up network drives:
Open the Desktop. In the Extras menu, select Map network drive.
Select the drive name under which the remote drive is to be hooked on to your PC.
Enter a name under which the drive or folder is to be released for the network. To do
this click Browse. This will open a screen in which you can search the network environment.
Select the resource you want and click OK.
If you select the option Reconnect at logon, Windows will hook the drive on every
time you start your PC, provided the remote PC is running.
Click Finish. Now open the desktop. The remote drive is now available as the network drive. You
can access the files as if they were on your own PC.

Using released files and printers Accessing released printers from your PC
If there is a printer on your local network and it has been released, you can use it to print out your data. To do this you have to set it up on your PC as the network printer. This can be done as follows:
Open the printer manager with Printers and Faxes in the Start menu.
Select Add printer. This opens the printer installation wizard. Click Next. In the next window select Network printer or printer connected to another computer.
Click Next again. Select Browse for a printer to look for the printer on the network.
Click Next. This will open a screen in which you can search the network environment

for the printer.

Select the printer you want and click Next.
Complete printer installation with Finish.
The newly installed printer will now appear in the printer list and can be used just like a local printer.
Using files and printers on the network (Windows 2000)
You can use resources on your PC such as files and printers that have been made available by other PCs. To do this you have to make these resources available on your PC.

Setting up user names

To access files or printers on a Windows 2000 computer, you must set up a user name that corresponds to the release. This user name must also have been set up on the system which is releasing the files or printers. That is why setting up a user name has already been described in Chapter "Releasing files and printers for shared use" in the section "Setting up user names" on page 29.
Accessing released drives or folders from your PC
u by hooking on to your PC's file system (see page 59).
You should choose this alternative if you want to work directly with the files or folders of the other PC. In this case, hook on an entire released drive or folder in your PC's file system and work with the files as if they were files on your PC. Please note: Drives or folders can be simultaneously hooked onto several PCs. It is therefore possible for other users to access the data. Most applications (e. g. word processing software) lock files once they have been opened. This prevents inconsistent data pools. If you cannot open a file because it is locked, you will normally see a message to that effect.
To hook up network drives:
Open the My NetworkPlaces and then Computers near me.
Open the PC containing the resources you want to access with a double click. You
will now see the shared resources on that PC.
Left-click the resource you want to attach to your PC and open the pop-up menu
with the right-hand mouse button Map network drive.
Select the drive name under which the remote drive is to be hooked on to your PC. Enter a name under which the drive or folder was released or click Browse. This will

Clicking a PC name shows the released drives and folders on this PC under the name assigned when they were released. You can navigate through the file system in the usual Windows Explorer way by clicking a drive or folder and then opening other branches of the file tree. Hooking external files on to your own file system You can hook released drives or folders on to your PC and use them as if they were actually on your own computer.
Open the My NetworkPlaces.
will now see the released resources on that PC.
Left click the resource you want to hook on. Open the pop-up menu with the right-hand mouse button and select Map network

drive.

The next free drive will be prompted. If you select the option Reconnect at logon, Windows will hook the drive on every time you start your PC, provided the remote PC is running. can access the files as if they were on your own PC.
Now open the desktop. The remote drive is now available as the network drive. You
Open the printer manager with Start Settings Printers.
Double-click the Add printer icon. This opens the printer installation wizard. Click Next. In the next window select Network printer. Click Next again.
Enter the name under which the printer was released for the network. To do this Select the printer you want and click OK.
click Browse. This will open a screen in which you can search the network environment for the printer.
The printer will now be displayed. Click Next.
Now enter a name for the printer on your PC.
Click Next. You can now print a test page if you want. This will show you whether the printer is
functioning properly on the network.
Click Finish. Windows will now need some driver files. You will be prompted to insert your
Windows CD in the CD drive. Insert the CD and click OK.
Once the driver files have been successfully installed, a test page will be printed. The newly installed printer will now appear in the printer list and can be used just

like a local printer.

Gigaset WLAN Tips / englisch / A31008-M1029-B101-1-7619 / ip_address.fm / 30.03.2005

Defining IP addresses

The IP address is used for the unique identification of a network component. You can define IP addresses as static or dynamic. This is done while defining the PC network configuration. In many cases the IP addresses are defined as dynamic and so can change every time you log in to the network. For some applications however you have to make sure that the PCs always have the same IP address. If you opted for automatic assignment of IP addresses during installation, you can change this via the PC network configuration. Network configuration differs depending on the Windows operating system you are using. Below you will find the procedure for Windows 98 from page 73, for Windows XP from page 77 and for Windows 2000 from page 80.

DHCP Dynamic Host Configuration Protocol DHCP handles the automatic assignment of IP addresses to network components. It was developed because in large networks especially the Internet the defining of IP addresses is very complex as participants frequently move, drop out or new ones join. A DHCP Server automatically assigns the connected network components (DHCP Clients) Dynamic IP addresses from a defined IP address pool thus saving a great deal of configuration work. It also allows address pools to be used more effectively: Since not all participants are on the network at the same time, the same IP address can be assigned to different network components in succession as and when required. The Gigaset SE551 WLAN dsl/cable includes a DHCP Server and so it can automatically assign IP addresses for the PCs on its local network. You can define for a particular PC that its IP address will never change. DHCP Server See DHCP DMZ Demilitarised Zone DMZ describes a part of a network that is outside the Firewall. A DMZ is so to speak set up between a network you want to protect (e. g. a LAN) and an insecure network (e. g. the Internet). A DMZ is useful if you want to offer Server services on the Internet which for security reasons are not to be run from behind the firewall or if Internet applications do not work properly behind a firewall. A DMZ permits unrestricted access from the Internet to only one or a few network components, while the other network components remain secure behind the firewall. DNS Domain name DNS permits the assignment of IP addresses to computers or Domain names that are easier to remember. A DNS Server has to administer this information for each LAN with an Internet connection. As soon as a page on the Internet is called up, the browser obtains the corresponding IP address from the DNS Server so that it can establish the connection. On the Internet the assignment of Domain names to IP addresses follows a hierarchical system. A local PC only knows the address of the local Name Server. This in turn knows all the addresses of the computers on the local network and the next higher Name Server, which again knows addresses on its network and that of the next Name Server. DNS Server See DNS Domain name The Domain name is the reference to one or more Web Servers on the Internet. The Domain name is mapped via the DNS service to the corresponding IP address.
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 Service Provider. It requires a DSL modem. Dynamic IP address A dynamic IP address is assigned to a network component automatically via DHCP. This means that the IP address of a network component can change with every login or at certain intervals. See also: Static IP address DynDNS Dynamic DNS Domain Name Service (DNS) is used to assign Domain names and IP addresss. For Dynamic IP addresss this service is now enhanced with the 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 on the Internet can always be addressed 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 SE551 WLAN dsl/cable uses WEP encryption for secure data transmission over wireless networks. Ethernet Ethernet is a network technology for local networks (LAN) defined by 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 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 side can receive or send data at a time. See also: Full duplex HTTP proxy An HTTP proxy is a Server that network components use for their Internet connections. All requests are sent via the proxy. Hub A Hub connects several network components in a star-topology network by sending all the data it receives from one network component to all the other network components. See also Switch, Bridge, Router, Gateway IEEE Institute of Electrical and Electronic Engineers IEEE is an international body for defining network standards, especially for standardizing LAN technologies, transmission protocols and speeds, and wiring. IEEE 802.11 IEEE 802.11 is a standard for wireless 2.4-GHz band LANs. In so-called Infrastructure mode end devices can be connected to a base station (Access point) or connect with each other spontaneously (Ad-hoc mode). Infrastructure mode Infrastructure mode is a way of operating wireless local networks (WLAN), in which an Access point handles the data traffic. Network components cannot establish a direct connection with each other as is the case in Ad-hoc mode. Internet The Internet is a wide-area network (WAN) linking several million users around the world. A number of Protocols have been defined for exchanging data known by the name TCP/IP. All participants in the Internet are identifiable by an IP address. Servers are addressed by a Domain name (e. g. siemens.com). Domain Name Service (DNS) is used to assign Domain names to IP addresses. Among the most important Internet services are:
u electronic mail (email) u World-Wide Web (WWW) u file transfer (FTP) u discussion forums (Usenet / Newsgroups)
Internet Service Provider An Internet Service Provider offers access to the Internet for a fee. IP Internet Protocol The IP Protocol is one of the TCP/IP protocols. It is responsible for the addressing of participants in a network using IP addresses and routes data from the sender to the recipient. It decides the paths along which the data packets travel from the sender to the recipient in a complex network (routing). IP address An IP address is a network-wide unique 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 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 SE551 WLAN dsl/cable has a Private IP address and a Public IP address. IP address pool The Gigaset SE551 WLAN dsl/cable 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 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 see 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.

Re-key Interval The re-key interval is the period after which new keys are automatically generated for data encryption with WPA-PSK. Remote Management Remote Management describes the possibility of administering a network from a network component that is not on the local network (LAN) itself. Roaming Roaming involves the use of several routers to extend the range of a network. The PCs on the network can switch dynamically between several Access Points. Router A router directs data packages from one local network (LAN) to another via the fastest route. A Router permits the connecting of network with different network technologies. For example, it can link a local network with Ethernet or WLAN technology to the Internet. See also: Bridge, Switch, Hub, Gateway Server A Server makes a service available to other network components (Clients). Frequently the term Server is used for a computer. But it can also mean an application that provides a particular service such as DNS or Web service. SMTP Simple Mail Transfer Protocol The SMTP Protocol is part of the TCP/IP protocol family. It governs the exchange of electronic mail on the Internet. Your Internet Service Provider provides you with access to an SMTP server. SSID Service Set Identifier The SSID identifies the stations of a wireless network (WLAN). All the wireless network components with the same SSID form a shared network. The SSID can be freely assigned. Static IP address A static IP address is assigned to a network component manually during network configuration. Unlike a Dynamic IP address, a static IP address never changes. Subnet mask The subnet mask determines how many parts of the IP addresses of a network represent the network number and how many the computer number. The subnet mask administered by the Gigaset SE551 WLAN dsl/cable is always 255.255.255.0. That means the first three parts of the IP address form the network number and the final part is used for assigning computer numbers. The first three parts of the IP address of all network components are in this case always the same.
Super G Super G technology can increase the transmission rate in the network to up to 108 Mbps by using channel bundling. Subnetwork A subnetwork divides a network into smaller units. Switch A Switch, like a Hub, is an element for linking different network segments or components. Unlike a hub, the switch has its own intelligence that enables it to further packets to only that subnetwork or network component they are meant for. See also: Bridge, Hub, Router, Gateway TCP Transmission Control Protocol The TCP Protocol is part of the TCP/IP protocol family. TCP handles data transport between communication partners (applications). TCP is a session-based transmission protocol, i.e. it sets up, monitors and terminates a connection for transporting data. See also: UDP TCP/IP Protocol family on which the Internet is based. IP form the basis for every PC-to-PC connection. TCP provides applications with a reliable transmission link in the form of a continuous data stream. TCP/IP is the basis on which services such as WWW, Mail and News are built. There are other protocols as well. Tunneling Tunneling is a procedure in which the data traffic of the one Protocol is transmitted with the help of a different protocol. For example, data packets of a private network can be packed in IP packets and transported over the Internet as if in a tunnel. Tunneling procedures are used nowadays for the secure transmission of data in a Virtual Private Network (VPN). The IP packages from a local network are encrypted and transmitted over the Internet using a tunnelling protocol (e. g. PPTP). UDP User Datagram Protocol UDP is a Protocol of the TCP/IP protocol family that handles data transport between communication partners (applications). Unlike TCP UDP is a non-session based protocol. It does not establish a fixed connection. The data packets, so-called datagrams, are sent as a Broadcast. The recipient is responsible for making sure the data is received. The sender is not notified about whether it is received or not. UPnP Universal Plug and Play UPnP technology is used for the spontaneous linking of home or small office networks. Devices that support UPnP carry out their network configuration automatically once they are connected to a network. They also provide their own services or use services of other devices on the network automatically.

URL Universal Resource Locator Globally unique address of a Domain on the Internet. Virtual server A virtual Server provides a service on the Internet that runs not on itself but another network component. The Gigaset SE551 WLAN dsl/cable can be configured as a virtual server. It then directs incoming calls for a service via Port Forwarding directly to the appropriate Port of the network component in question. VPN A VPN is a network connection in which the data are transmitted over the Internet using special Tunneling protocols (e. g. PPTP, L2TP, IPSec) securely, i.e. encrypted. VPNs are used to connect private networks at different locations with each other without having to lease a transmission line. The Internet is used instead. WAN Wide Area Network A WAN is a network that is not restricted to one particular area, such as the Internet. A WAN is run by one or more public providers to enable private access. You access the Internet via an Internet Service Provider. WEP Wired Equivalent Privacy WEP is a security protocol defined in the IEEE 802.11 standard. It is used to protect wireless transmissions in a WLAN against unauthorised access through Encryption of the data transmitted. Wireless network See WLAN WLAN Wireless LAN Wireless LANs enable network components to communicate with and access a network using radio waves as the transport medium. A wireless LAN can be connected as an extension to a wired LAN or it can form the basis for a new network. The basic element of a wireless network is the so-called wireless cell. This is the area where the wireless communication takes place. A WLAN can be operated in Ad-hoc mode or Infrastructure mode. WLAN is currently specified in Standard IEEE 802.11. The Gigaset SE551 WLAN dsl/cable complies with Standard 802.11g. WPA WPA was developed to improve security provided by WEP. To generate keys, WPA uses more complex methods, e.g. TKIP (Temporal Key Integrity Protocol). In addition, WPA can use an authentication server (e.g. a RADIUS server) to increase security.
WPA-PSK WPA Preshared Key: Variant of WPA data encryption, in which new keys are automatically generated at regular intervals by means of a keyword (Pre-shared key). The key is updated after defined periods (Re-key Interval). XR eXtended Range The Access Point's XR function (Extended Range) is activated if the range is too large to establish a connection. It increases the range and, at the same time, decreases the transmission rate.

Gigaset WLAN Tips / englisch / A31008-M1029-B101-1-7643 / cover_back.fm / 30.03.2005
Issued by Siemens Communications Haidenauplatz 1 D-81667 Munich Siemens AG 2005 All rights reserved. Subject to availability. Rights of modification reserved. Siemens Aktiengesellschaft www.siemens.com/gigaset No.: A31008-M1029-B101-1-7643