Siemens Gigaset-SE572 Router Manual PDF (Setup & Configuration Guide)

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11

The Gigaset SE551 WLAN dsl/cable

Linking wireless networks with the Internet

The Gigaset SE551 WLAN dsl/cable has an ADSL interface that permits all stations within

its local network to access the Internet simultaneously. To be able to use this function-

ality you need a DSL or cable connection obtainable from an Internet provider. Find out

whether your Internet Service Provider supports parallel access by several PCs.

This illustration shows the commonest method of application. One or more PCs commu-

nicate wirelessly with the Gigaset SE551 WLAN dsl/cable in infrastructure mode. The

Gigaset SE551 WLAN dsl/cable forwards the data to the Internet via a DSL or cable

modem. Data from the Internet flows back to the PC along the same route.

Internet

(((

)))

(((

Gigaset SE551 WLAN dsl/cable

DSL or cable modem

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12

The Gigaset SE551 WLAN dsl/cable

Linking a wireless network (WLAN) to an Ethernet (LAN)

Wireless networks can work easily together with existing Ethernet networks. If you wish

to connect mobile stations to an existing wired network, you must group together all

mobile stations into a wireless network in infrastructure mode.

The Gigaset SE551 WLAN dsl/cable has four Ethernet interfaces (LAN ports). Up to four

PCs can be connected directly to these LAN ports.

All PCs can access the Internet via the Gigaset SE551 WLAN dsl/cable.

Please remember:

You can also connect an Ethernet router to a LAN port to access a larger Ethernet.

If you want to link the Gigaset WLAN network to an existing network, a large number

of settings have to be applied. Therefore we cannot provide a general example for this

use; the configuration depends greatly on the networks in question. We advise having

the configuration of such a network carried out by a specialist.

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Wireless local network (WLAN)

Ethernet

Access Point

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13

The Gigaset SE551 WLAN dsl/cable

Features and applications

The Gigaset SE551 WLAN dsl/cable's wide range of features make it ideal for a large

number of applications, such as:

u

Internet access

The Gigaset SE551 WLAN dsl/cable gives several users access to the Internet when a

DSL or cable modem is connected.

–

As with many DSL providers the Internet is accessed via the

PPPoE

protocol, the

Gigaset SE551 WLAN dsl/cable contains an integrated PPPoE

Client

, which means

you no longer need to set up this service on your PC yourself.

–

Shared Internet access

If your Internet provider permits this, the Gigaset SE551 WLAN dsl/cable supports

Internet access for up to 252 users. In practice, multiple users in your network can

surf the Internet simultaneously using just one Internet account.

u

Setting up a local network

The Gigaset SE551 WLAN dsl/cable permits connections

–

for four devices via

Ethernet

ports with a transmission speed of 10 or 100

Mbps

(with automatic recognition).

–

for up to 252 mobile terminals via a radio interface with a transmission speed of

up to 108 Mbps. It complies with Standard

IEEE 802.11g

and can work with all

products that satisfy Standard IEEE 802.11 b or 802.11g. The Super G technology

used enables a high transmission speed.

Using a Gigaset SE551 WLAN dsl/cable makes it easy to set up a network at home or

in small offices. For example, users can exchange data or share resources on the net-

work, such as a file server or printer. You can connect a USB hard disk, a USB stick or

a printer to the USB interface of the Gigaset SE551 WLAN dsl/cable and make them

available to all users in your network.

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14

The Gigaset SE551 WLAN dsl/cable

u

Security functions

The Gigaset SE551 WLAN dsl/cable offers comprehensive security measures:

–

Firewall

protection against unauthorised access from the Internet

All the PCs in the local network use the Gigaset SE551 WLAN dsl/cable's

Public IP

address

for their Internet connections, which makes them 'invisible' on the Inter-

net. The Gigaset SE551 WLAN dsl/cable only allows access from the Internet if it

has been requested from the local network.

With the firewall the Gigaset SE551 WLAN dsl/cable also offers comprehensive

protection against hacker attacks.

–

Service filtering and URL filtering

The Gigaset SE551 WLAN dsl/cable can filter Internet access. Here you determine

which PCs may access which Internet services.

In addition, you can deactivate access to certain Internet domains and sites

(URL filtering).

–

Access control and encryption for the local network

You can use various encryption methods and authentication methods (WEP, WPA/

WPA2-PSK,WPA/WPA2, MAC access control) to prevent unauthorised access to

your wireless LAN or make data illegible to unauthorised parties.

u

Offering your own services on the Internet

–

If you want to offer your own services on the Internet, you can configure the

Gigaset SE551 WLAN dsl/cable as a virtual server without permitting further

access to the local network.

–

Exposed Host

You can set up a PC on your local network to be a virtual server and release it for

unrestricted access from the Internet.

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15

The Gigaset SE551 WLAN dsl/cable

Procedure for installation and configuration

1.

First install an Ethernet network card or a wireless

Network adapter

such as the

Gigaset PC Card 108 or the Gigaset USB Adapter 108 in the PCs you want to connect

to the Gigaset SE551 WLAN dsl/cable. The installation is described in the products'

user guide.

2.

Then make the necessary connections (PCs, modem) to the Gigaset SE551 WLAN

dsl/cable and switch the device on (see section "Connecting the Gigaset SE551

WLAN dsl/cable" on page 20).

3.

Before the PCs can communicate with the Gigaset SE551 WLAN dsl/cable and with

each other in a local network, you have to change their network settings. Configure

these network settings on

one

PC first so that it can establish a connection to the

Gigaset SE551 WLAN dsl/cable. You can then use this PC to configure the device.

To find out how to do this, read the document entitled “Network configuration” on

the CD.

4.

In a wireless connection you establish the link from the PC's wireless network adapt-

er to the Gigaset SE551 WLAN dsl/cable. This is described in the user guide for the

network adapter.

5.

Then configure the Gigaset SE551 WLAN dsl/cable to activate the device's Internet

access (refer to the section "Basic Setup Wizard" on page 29). This will require the

access data from your Internet service provider.

u

If you want to connect more PCs to the Gigaset SE551 WLAN dsl/cable, configure

their network settings so as to set up the local network (refer to the document enti-

tled “Network configuration” on the CD).

u

If you want to use the Gigaset SE551 WLAN dsl/cable's other functions e.g. the com-

prehensive security features, use the router's Security Setup (see page 34) or the

Advanced Settings menu (see page 43).

Please remember:

When installing wireless network adapters, use the default

SSID

for the Gigaset

SE551 WLAN dsl/cable:

ConnectionPoint

.

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