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Contents
Contents
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
The Gigaset SE551 WLAN dsl/cable . . . . . . . . . . . . . 6
Local networks with Gigaset products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Wired local network (Ethernet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Wireless local network (WLAN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Linking a wireless network (WLAN) to an Ethernet (LAN) . . . . . . . . . . . . . . . . . . 11
Features and applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Procedure for installation and configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
First Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Operating displays and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Back panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Setting up the Gigaset SE551 WLAN dsl/cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Connecting the Gigaset SE551 WLAN dsl/cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
To the DSL or cable modem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
To the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
To the mains power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Configuring the local network . . . . . . . . . . . . . . . . 23
Network configuration with Windows XP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Configuring the network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Selecting a computer name and workgroup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Checking the network settings and completing the installation procedure . . . . . 26
TCP/IP settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Deactivating the HTTP proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Configuring the popup blocker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Synchronising TCP/IP settings with the Gigaset SE551 WLAN dsl/cable . . . . . . . . 32
Network configuration with Windows 2000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Installing network services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Selecting a computer name and workgroup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Installing the TCP/IP protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
TCP/IP settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Deactivating the HTTP proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Configuring the popup blocker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Synchronising the TCP/IP settings with the Gigaset SE551 WLAN dsl/cable . . . . . 40
Network configuration with Windows 98 SE, ME . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Setting up a PC as the Client for Microsoft Networks . . . . . . . . . . . . . . . . . . . . . . 41
Selecting a computer name and workgroup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Installing the TCP/IP protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Making TCP/IP settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
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Contents
Deactivating the HTTP proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Configuring the popup blocker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Synchronising the TCP/IP settings with the Gigaset SE551 WLAN dsl/cable . . . . . 49
Checking the connection to the Gigaset SE551 WLAN dsl/cable . . . . . . . . . . . . . . . . 50
The user interface . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Launching the user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
The start screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Selecting a language . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Elements on the user interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Basic Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Regional Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Configuring Internet connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Security settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Assigning a Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
SSID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Setting security functions for the wireless network . . . . . . . . . . . . . . . . . . . . . . . . . . 64
WPA2 / WPA with Pre-shared key (PSK) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
WEP encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Access control within the wireless network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Saving settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Configuring the Advanced Settings . . . . . . . . . . . . 70
Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
DNS server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
MAC address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Traffic Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Attack detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Setting up access control to the Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Setting up the NAT function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Port Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Port Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Opening the firewall for selected PCs (Exposed Host) . . . . . . . . . . . . . . . . . . . . . 92
Dynamic DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
QoS (Quality of Service) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
LAN configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Assigning static IP addresses to individual PCs . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Configuring wireless connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Setting wireless security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
WPA2-PSK and WPA2-PSK / WPA-PSK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
WEP encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Allowed clients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
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Contents
Repeater function (WDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
File server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Web Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Printer server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Administration and status information . . . . . . . . 117
Connecting to the Internet manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Regional Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Internet Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
System Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Setting up Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Saving and restoring a configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Saving configuration data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Restoring the back-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Resetting to the factory settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Reboot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Updating firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
System Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Status information . . . . . . . . . . . . . . . . . . . . . . . . . 126
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Internet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Traffic Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Local Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Wireless Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Installing the printer port for network printers . 137
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Installing a standard TCP/IP printer port under Windows XP/2000 . . . . . . . . . . . . . . 138
Installing a printer on the TCP/IP port retrospectively . . . . . . . . . . . . . . . . . . . . . . . . 144
Installing a printer driver under Windows 98 SE or ME . . . . . . . . . . . . . . . . . . . . . . . 145
Instructions for setting up a printer on the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
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Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Authorisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Service (Customer Care) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Guarantee certificate (United Kingdom) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Guarantee certificate (Ireland) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
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Safety precautions
Safety precautions
u Only use the mains adapter (12V 1A DC) that is supplied with the Gigaset SE551
WLAN dsl/cable. Comply with the connection values and ratings when connecting
the device to the mains power supply.
u Protect the device from damp.
u Never open the device. For reasons of electrical safety it may only be opened by
authorised service technicians.
u The device may affect medical equipment.
Trademarks
Microsoft, Windows 98 SE, Windows ME, Windows 2000, Windows XP and Internet
Explorer are registered trademarks of the Microsoft Corporation.
Mozilla Firefox is a registered trademark of the Mozilla Organization.
Super G is a registered trademark of Atheros Communications, Inc.
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The Gigaset SE551 WLAN dsl/cable
The Gigaset SE551 WLAN dsl/cable
Your Siemens Gigaset SE551 WLAN dsl/cable is a powerful but easily operated device for
connecting your PC (WLAN) or your local network (LAN) to the Internet without the
need for wires (via a DSL or cable modem).
You can connect your PC wirelessly to the Gigaset SE551 WLAN dsl/cable and create a
wireless local network (WLAN). Thanks to Super G technology the transfer rate within
the local wireless network achieves up to 108 Mbps. For network security, wireless
transmission can be encrypted using the WPA standard or 64/128-bit WEP.
The Gigaset SE551 WLAN dsl/cable allows several users to access the Internet simultaneously. A single user account can be shared if your Internet Provider permits this.
If you want to surf the Internet at the lowest possible cost, then the Gigaset SE551
WLAN dsl/cable is a convenient and effective solution.
You can connect a DSL or cable modem to the WAN interface of your Gigaset SE551
WLAN dsl/cable.
Despite its extensive range of functions, the Gigaset SE551 WLAN dsl/cable is simple to
handle. It can be configured and operational within a few minutes.
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The Gigaset SE551 WLAN dsl/cable
Local networks with Gigaset products
You can use the Siemens Gigaset SE551 WLAN dsl/cable to set up a local network, e.g.
a home network. All the PCs in this network can communicate with each other and have
access to the Internet.
Internet
Gigaset SE551 WLAN dsl/cable
Modem
Windows ME
Windows 2000
Local Area Network
Windows XP
Windows 98 SE
There are various ways in which you can set up the network with a Gigaset SE551 WLAN
dsl/cable. You can
u set up a wired local network (Ethernet) and allow the connected PCs access to the
Internet (see page 8).
u set up a wireless local network (WLAN) and allow the connected PCs access to the
Internet (see page 9).
u set up a local network comprising wireless and wired network components (see
page 11).
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The Gigaset SE551 WLAN dsl/cable
Wired local network (Ethernet)
In a wired local network, PCs communicate with one another via an Ethernet cable.
When the Siemens Gigaset SE551 WLAN dsl/cable is used, it establishes the connection
between the PCs. For this it has four Ethernet LAN ports for connecting four PCs. The
PCs have to be equipped with a network socket (Ethernet). New PCs frequently already
have this socket. For older PCs you need to install an Ethernet network card. The PC and
the Ethernet LAN socket on the Gigaset SE551 WLAN dsl/cable are connected using an
Ethernet cable (CAT5). There is one supplied. You can obtain additional Ethernet cables
from your retailer.
The Gigaset SE551 WLAN dsl/cable allows all PCs to access the Internet simultaneously.
Gigaset SE551 WLAN dsl/cable
Ethernet
Internet
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The Gigaset SE551 WLAN dsl/cable
Wireless local network (WLAN)
In a wireless local network (WLAN) PCs are linked without wires. For this the PCs
have to be equipped with a wireless network adapter (WLAN adapter) such as a
Gigaset PC Card 108 or a USB Adapter 108.
We generally differentiate between two types of wireless network:
u Infrastructure mode
u Ad-hoc mode
Infrastructure mode
The infrastructure mode connects wireless and wired networks with one another. In
addition to the mobile stations, the infrastructure mode needs an access point such as
the Gigaset SE551 WLAN dsl/cable. In infrastructure mode the stations in the network
always communicate via this access point. Each station that wants to be part of the wireless network must first register with the access point before it can exchange data.
The access point establishes the connection between the mobile stations of a wireless
network and a wired LAN (Ethernet) or the Internet. In this case this is described as the
device's router functionality. The router sends data packets that are not addressed to stations within the network "outside" and forwards data packets originating from "outside"
to the appropriate station within the network.
You can use the Gigaset SE551 WLAN dsl/cable to connect
u wirelessly networked PCs to the Internet and
u wirelessly networked PCs to an Ethernet network.
Infrastructure mode is the default configuration of the Gigaset SE551 WLAN dsl/cable.
This configuration is described in the quick guide enclosed with the router.
Ad-hoc mode
An ad-hoc network is a wireless network set up without an access point or router.
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 in 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.
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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 functionality 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.
Gigaset SE551 WLAN dsl/cable
)))(((
DSL or cable modem
Internet
(((
(((
(((
This illustration shows the commonest method of application. One or more PCs communicate 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.
(((
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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.
(((
(((
Wireless local network (WLAN)
(((
)))(((
Access Point
(((
Ethernet
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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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
In tern et ac cess f or u p to 2 52 user s. In pr actice, 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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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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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.
Please remember:
When installing wireless network adapters, use the default SSID for the Gigaset
SE551 WLAN dsl/cable: ConnectionPoint.
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 19).
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, refer to "Configuring the local network" on page 23.
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 56). 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 section entitled
"Configuring the local network" on page 23).
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 61) or the
Advanced Settings menu (see page 70).
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First Steps
First Steps
Contents
The package contains the following items:
u one Gigaset SE551 WLAN dsl/cable,
u one mains adapter (220 V / 12V 1A DC),
u one cable with RJ-45 jacks (CAT5),
u one CD with full user guide and driver software for operating a network printer on
the Gigaset SE551 WLAN dsl/cable via Windows 98 SE / ME, plus the document enti-
tled "Gigaset WLAN. Practical tips",
u one Quick Start Guide
System requirements
To operate your Gigaset SE551 WLAN dsl/cable you need:
u a PC with
– an 802.11g or 802.11b-compatible wireless Network adapter.
In order to be able to use the superior range and increased data throughput
gained by using Super G technology, we recommend using a Gigaset PC Card 108
or a Gigaset USB Adapter 108.
Note:
The maximum data transfer rate for 802.11b-compatible network adapters is
11 Mbps, for 802.11g-compatible network adapters 54 Mbps, and for network
adapters that support Super G, 108 Mbps.
You can only achieve the transfer rate of 108 Mbps during operation if all network adapters registered in the wireless network support Super G.
or
–an Ethernet connection,
u a Web browser such as Microsoft Internet Explorer 6.0 or Mozilla Firefox 1.0 for
configuring your Gigaset SE551 WLAN dsl/cable
u for Internet access
– a DSL or cable modem and a splitter (for DSL),
– the access data for your Internet Providers.
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First Steps
Operating displays and connections
Front panel
LED displays
The front panel of the device contains LED displays that show the operating state and
simplify installation and fault finding in the network.
The LEDs show the following (from right to left):
LED State Status
On A device is connected to the Gigaset SE551 WLAN dsl/
USB
Power
WAN
Online
Off There is no device connected.
On The Gigaset SE551 WLAN dsl/cable is connected to the
Off The Gigaset SE551 WLAN dsl/cable is not connected to the
On A DSL or cable modem is connected.
Flashing The WAN port is sending or receiving data (traffic).
Off There is no modem connected.
On Connection to the Internet has been established.
Off There is no Internet connection.
cable via the USB port.
power supply.
power supply.
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LED State Status
On The radio interface is active.
Flashing The Gigaset SE551 WLAN dsl/cable is sending or receiving
WLAN
LAN1 –
LAN4
Off The radio interface has been deactivated or no radio sig-
On A device is connected to the relevant LAN port.
Flashing The LAN port is sending or receiving data (traffic).
Off There is no device connected.
data on the radio interface.
nal is being received.
Back panel
First Steps
The back panel of the Gigaset SE551 WLAN dsl/cable houses the sockets.
Element Description
12 V DC Socket for the mains adapter supplied (12V 1A DC).
Warning: Using the wrong power supply unit may damage the
Gigaset SE551 WLAN dsl/cable.
Modem Socket for connecting to the DSL or cable modem.
LAN1 –
LAN4
USB USB port for printer or USB bulk memory.
Reset
The reset button is located behind the small opening on the bottom of the device.
Four 10/100 Mbps switch sockets with automatic recognition (RJ-45).
You can connect up to four Ethernet devices (such as PCs, a Hub or
Switch).
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First Steps
u Reboot function: Press the button for longer than 1 second but less than 5 seconds
to reboot the device. This does not affect the configuration settings.
u Reset function: Press the button behind the small opening on the bottom of the
device for at least 5 seconds to return all settings to the factory settings.
Warning: This will clear all the configuration settings you have made.
Updated firmware will not be affected.
Setting up the Gigaset SE551 WLAN dsl/cable
The Gigaset SE551 WLAN dsl/cable can be set up in any suitable location in your home
or office. You do not need any special wiring. However you should comply with the following guidelines:
u Operate the Gigaset SE551 WLAN dsl/cable only indoors within a temperature range
of +5 to +40 °C. Do not position the Gigaset SE551 WLAN dsl/cable near sources of
heat. Do not cover the ventilation slots. High temperatures can damage the device.
u A mains socket for 220/240V~ and a connection socket for the modem or LAN must
be available where you set up the Gigaset SE551 WLAN dsl/cable.
u Do not site the device in the immediate vicinity of stereo equipment, TV sets or
microwave ovens. This may cause interference.
u Position the Gigaset SE551 WLAN dsl/cable so that it is as near to the centre of your
wireless network as possible. Make sure that where you position the Gigaset SE551
WLAN dsl/cable has optimum reception throughout the house or office. You can
improve the reception quality by aligning the antenna (turn and/or tilt).
u Position the Gigaset SE551 WLAN dsl/cable on a non-slip surface. The router feet do
not normally leave any traces on the surface they are on. However, some furniture
surfaces may contain substances that attack and soften the router's rubber feet.
Then the feet may well mark the furniture surface.
u Do not place the Gigaset SE551 WLAN dsl/cable on any furniture surface that could
be affected by the heat from the device.
u Position the Gigaset SE551 WLAN dsl/cable so that it cannot fall.
u Lay the cables so that nobody can trip over them.
u If you wish to mount the Gigaset SE551 WLAN dsl/cable on the wall, use flat-headed
or tallow-drop screws with a maximum thread diameter of 3.5mm. The screws are
not included in the scope of delivery.
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First Steps
Connecting the Gigaset SE551 WLAN dsl/cable
Before starting to connect PCs to your Gigaset SE551 WLAN dsl/cable make sure that
u a wired or wireless Network adapter is connected to the PC. Please read the operat-
ing instructions that came with the adapter. The latest PCs and Notebooks have
wired adapters built in at the factory.
u ConnectionPoint has been entered as SSID on the network adapter.
To the DSL or cable modem
ì Connect the socket on the back of the router marked DSL and your DSL or cable
modem with an Ethernet cable.
DSL or cable modem
Please remember:
Use a category 5 Ethernet cable with RJ-45 jacks on both ends for all connections.
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First Steps
To t he PC
You can connect wired or wireless PCs to your Gigaset SE551 WLAN dsl/cable to create
a local network (LAN).
Wireless
A wireless connection is made using a wireless network adapter that must be installed
in your PC. This can be, for example, a Gigaset PC Card 108, a Gigaset USB Adapter 108
or another Super G, 802.11g or 802.11b-compatible wireless network adapter.
You def ine a Radio network by assigning all the devices an identical SSID. You should
therefore assign the SSID of the Gigaset SE551 WLAN dsl/cable to the network adapters.
The factory set SSID is ConnectionPoint.
If the correct SSID has been entered in your PC's wireless network adapter, the wireless
link will be established automatically once you connect your Gigaset SE551 WLAN dsl/
cable to the mains power supply (see page 19).
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First Steps
Wired
ì Connect one of the LAN sockets (LAN1 – LAN4) on the back of the Gigaset SE551
WLAN dsl/cable to the Ethernet connection on a PC. To do this, use an Ethernet cable
with RJ-45 jacks (CAT5). This can also be done with the supplied Ethernet cable.
The four LAN sockets can automatically set the transmission speed to 10 Mbps
Ethernet or 100 Mbps Fast Ethernet and the transmissions mode to Half duplex or
Full duplex depending on the performance of the network adapter in your PC.
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First Steps
To the mains power supply
Please remember:
Only use the router with the mains adapter (12V 1A DC) that is supplied.
ì Connect the mains adapter cable to the 12V DC socket on the Gigaset SE551 WLAN
dsl/cable.
ì Plug the mains adapter into a mains socket.
Your Gigaset SE551 WLAN dsl/cable is now ready for use.
u The power LED on the front lights up.
u The WLAN LED lights up to indicate that the Gigaset SE551 WLAN dsl/cable is ready
to open wireless connections.
The radio link to a PC that is connected by means of a wireless network adapter is
opened automatically provided the network adapter has been configured with the
same SSID as the Gigaset SE551 WLAN dsl/cable (see page 20). It can take a few seconds for the wireless connection to be established. The WLAN LED flashes when
data is sent or received via this connection.
u The LAN LEDs light up if a device is connected to the corresponding LAN connection
by means of an Ethernet cable.
In order to communicate via the Gigaset SE551 WLAN dsl/cable, the network must be
configured on the connected PC. This usually takes place automatically (see page 23).
You will find information on how to operate devices on the USB port of the Gigaset
SE551 WLAN dsl/cable on page 137 for printers, on page 110 for external bulk memories, and in the document "Gigaset WLAN. Practical tips" on the supplied CD.
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Configuring the local network
Configuring the local network
Once you have set up the hardware and connected all the devices, you have to configure
the network settings of all the PCs that will communicate with each other via the Gigaset
SE551 WLAN dsl/cable.
In this section we assume that you will use the Gigaset SE551 WLAN dsl/cable's DHCP
service. This means that the IP addresses are automatically assigned to the PCs
(Dynamic IP addresses). This is also the device's default setting.
In many cases, however, it is advisable to assign Static IP addresses, e.g. if you wish to
run a wireless network in Ad-hoc mode. How to configure the dynamic address assignment on the Gigaset SE551 WLAN dsl/cable is described in the section "LAN configuration" on page 96.
If your network has already been set up you can read on from "The user interface" on
page 51.
The network configuration varies depending on the Windows operating system you are
using. You will find the procedure described below for Windows 98 from page 41, for
Windows XP from page 23, and for Windows 2000 from page 33.
Have your Windows Installation CD to hand. You may be prompted to insert it.
Please remember:
The Windows user interfaces depicted in this guide may differ from those on your
screen because of the settings you have made. The illustrations always reflect the
default state.
Network configuration with Windows XP
To integrate a PC with Windows XP into a network that is configured with a
Gigaset SE551 WLAN dsl/cable you must carry out the following steps:
1. Configure the network (see below)
2. Select a computer name and workgroup (see page 26)
3. Check the network settings and complete the installation procedure (see page 26)
4. Make TCP/IP settings (see page 27)
5. Deactivate the http proxy (see page 30)
6. Configure popup blocker (see page 31)
7. Synchronising TCP/IP settings with the Gigaset SE551 WLAN dsl/cable (page 32)
Note:
The name of the menu items may differ slightly from one version of Windows XP to
another. However, the configuration settings described below apply generally.
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Configuring the local network
Configuring the network
Please remember:
Make sure that the Use Windows to configure the settings function is deactivated.
This can be done as follows:
ì Click on Start – Settings – Control panel – Network connections –
LAN or high-speed Internet.
A window opens showing the properties of this connection.
In some versions of Windows XP you open this window by right-clicking the mouse
on the properties menu item.
ì On the General tab, click on the Properties button.
On the Wireless networks tab, deactivate the option Use Windows to configure
the settings.
Configuring the network in this case means selecting Internet connection as the connection method. You can do this with the network wizard.
ì Click on Start – Control Panel.
ì Open the Network connections screen (by double clicking or by using the right
mouse key).
ì Under Pick a task select the option Set up or change your home or small office
network.
The network installation wizard is started.
ì Skip the welcome screen and the checklist by clicking twice on Next.
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Configuring the local network
You will be prompted to select a connection method.
ì Select Other Method and confirm with Next.
You will now see a screen listing various connection methods.
ì Select This computer connects directly to the Internet. The other computers on
my network connect to the Internet through this computer and click on Next.
ì In the next window select your network adapter and click on Next.
ì Skip the message This network configuration is not advisable by clicking on Next.
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Configuring the local network
Selecting a computer name and workgroup
You now have to specify a name for the PC and assign it to a workgroup.
ì Enter the name the PC is to appear under in the network. This name must be unique
within the network. You can complete the Computer description field or leave it
empty. Then click on Next.
ì Enter a name for the workgroup the PC is to belong to. This name must be identical
for all the PCs in the network. Then continue by clicking on Next.
Checking the network settings and completing the installation procedure
You will now see a screen in which you can check the settings you have made and make
any changes you want.
ì Click on Back if you want to make any changes or click on Next if you want to leave
them unchanged.
If you do not want to install any more PCs:
ì Select Only finish the wizard as it is not run on other computers, and confirm by
clicking twice on Next.
ì Answer the question Do you want to restart your computer now? with Yes.
If you want to set up a network on other PCs with Windows XP, you can now create a
network installation disk.
ì Select Create a network installation disk, and click on Next.
ì Follow the screen instructions and insert a disk. The necessary data will now be cop-
ied. Now label the disk as Network installation.
ì Confirm the next two screens with Next and complete the installation procedure by
rebooting the PC.
After this your home network will have been installed.
To set up the network on the other PCs with the same settings, insert the disk in the
drive and run Netsetup with a double click.
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Configuring the local network
TCP/IP settings
The TCP/IP-Protocol requires certain settings which you should now make or check so
that it can function smoothly.
ì Click on Start – Settings – Control Panel.
ì Select Network Connections.
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Configuring the local network
ì Double-click on the LAN connection with which you are connected to the
Gigaset SE551 WLAN dsl/cable.
ì Click on Properties.
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Configuring the local network
ì Select Internet protocol (TCP/IP) and click on Properties.
ì If the Obtain an IP address automatically and Obtain DNS server address auto-
matically options have already been activated, your PC is already configured for
DHCP. Click on Cancel and close the following windows with OK to save your network configuration.
ì If the Obtain an IP address automatically and Obtain DNS server address auto-
matically options have not yet been activated, select them now and click on OK.
Close the following screens.
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Configuring the local network
Deactivating the HTTP proxy
Make sure that the HTTP Proxy in your Web browser is deactivated. This function must
be deactivated so that your Web browser can access your Gigaset SE551 WLAN dsl/
cable's configuration pages.
The following section describes the procedure for Internet Explorer and Mozilla Firefox.
First decide which browser you are using and then follow the appropriate steps.
Internet Explorer
ì Open Internet Explorer and click on End. Click on Tools and then on Internet
Options.
ì In the Internet Options window click on the Connections tab.
ì Click on Settings.
ì Deactivate all options in the Settings for local network (LAN) window.
ì Click on OK and then OK again to close the Internet Options window.
Mozilla Firefox
ì Open Mozilla Firefox. Click on Tools and then on Settings.
ì In the Settings window, click on Connection Settings... .
ì In the Connection Settings window, select the option Direct connection to the
Internet.
ì Click on OK to finish.
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Configuring the local network
Configuring the popup blocker
You must allow popups for the configuration program in order to start it.
Internet Explorer
If working with Windows XP Service Pack 2, popups are blocked by default. Carry out the
following steps:
ì Right-click on the browser information bar.
ì Select Allow popups from this screen.
ì Confirm the dialogue window by clicking on OK.
The configuration pages for the Gigaset SE551 WLAN dsl/cable are now allowed as
popups.
You can make additional settings for popups within Internet Explorer
u via the Tools – Popup manager menu item or
u via Tools – Internet Options in the Privacy tab.
Mozilla Firefox
Popups are blocked by default. Carry out the following steps:
ì Open Mozilla Firefox. Click on Tools and then on Settings.
ì In the Settings window, click on the Web features tab.
ì In the Web features window, deactivate the option Block popup windows.
ì Finish by clicking on OK.
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Configuring the local network
Synchronising TCP/IP settings with the Gigaset SE551 WLAN dsl/cable
You have now configured your PC so that it is ready to be connected to the Gigaset
SE551 WLAN dsl/cable. You now have to release the old TCP/IP settings and synchronise
them with the settings of your Gigaset SE551 WLAN dsl/cable.
ì Click on Start on the Windows Desktop and then Programs, followed by Accesso-
ries and finally Command prompt.
ì In the Command prompt window, enter the ipconfig
/release command and press the ENTER key.
ì Then enter the ipconfig /renew command and press the ENTER key.
If the default IP address (192.168.2.1) of the Gigaset SE551 WLAN dsl/cable was not
changed, the IP address should now read 192.168.2.x (with x being a number
between 2 and 255). The Subnet Mask must always be 255.255.255.0 and the
Default Gateway must have the IP address of the Gigaset SE551 WLAN dsl/cable
(192.168.2.1). These values confirm that your Gigaset SE551 WLAN dsl/cable is
working.
ì Enter exit and press the Enter key to close the Command prompt window.
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Configuring the local network
Network configuration with Windows 2000
To integrate a PC with Windows 2000 into a network that is configured with a
Gigaset SE551 WLAN dsl/cable you must carry out the following steps:
1. Install the network services (see below).
2. Select computer names and workgroup (see page 34).
3. Install the TCP/IP protocol (see page 35).
4. Make TCP/IP protocol settings (see page 37).
5. Deactivate the http proxy (see page 39).
6. Deactivate the popup blocker (for Mozilla Firefox only, see page 39)
7. Synchronise the TCP/IP settings with the Gigaset SE551 WLAN dsl/cable
(see page 40).
Installing network services
You have to install the network services before the PCs in your network can access
shared resources. This is done as follows:
ì Click on Start – Settings – Control Panel.
ì Double-click on the Network and dial-up connections icon.
ì In the left-hand pane click on Add network components.
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Configuring the local network
ì Now select Networking services and click on Next.
ì You will now be prompted to insert the Windows installation CD. Insert the WIN2000
CD and click on OK to install all the required components.
Selecting a computer name and workgroup
You now have to specify a name for the PC and assign it to a workgroup.
ì In the left-hand pane click on Network identification and then on Properties.
ì In the Computer name field, enter the name the PC is to appear under in the net-
work. This name must be unique within the network.
ì In the Workgroup field, type a name for the workgroup. This name must be the
same for all the PCs in the network.
ì Confirm this with OK.
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Configuring the local network
Installing the TCP/IP protocol
The TCP/IP protocol ensures that the PCs in the network can communicate with each
other. You now have to install this Protocol.
ì Right click to open the LAN connection.
ì In the next window click on Properties.
ì Click on Install.
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Configuring the local network
ì Now select Protocol and click on Add.
ì In the Network protocol list, select Internet protocol (TCP/IP).
ì Click on OK.
The TCP/IP protocol is now shown in the Local Area Connection Properties win-
dow.
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Configuring the local network
TCP/IP settings
The TCP/IP protocol requires certain settings which you must now make or check so that
it can function smoothly.
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Configuring the local network
ì Select Internet protocol (TCP/IP) and click on Properties.
ì If the Obtain an IP address automatically and Obtain DNS server address auto-
matically options have already been activated, your PC is already configured for
DHCP. Click on Cancel and close the following windows with OK to save your network configuration.
ì If the Obtain an IP address automatically and Obtain DNS server address auto-
matically options have not yet been activated, select them now and click on OK.
Close the following screens.
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Configuring the local network
Deactivating the HTTP proxy
Make sure that the HTTP Proxy in your Web browser is deactivated. This function must
be deactivated so that your Web browser can read your Gigaset SE551 WLAN dsl/cable's
configuration pages.
The following section describes the procedure for Internet Explorer and Mozilla Firefox.
First decide which browser you are using and then follow the appropriate steps.
Internet Explorer
ì Open Internet Explorer. Click on Tools – Internet Options.
ì In the Internet Options window click on the Connections tab.
ì Click on LAN settings.
ì Deactivate all options in the Settings for local network (LAN) window.
ì Click on OK and then OK again to close the Internet Options window.
Mozilla Firefox
ì Open Mozilla Firefox. Click on Tools and then on Settings.
ì In the Settings window, click on Connection Settings... .
ì In the Connection Settings window, select the option Direct connection to the
Internet.
ì Click on OK to finish.
Configuring the popup blocker
With Mozilla Firefox, popups are blocked by default. If you are using Mozilla Firefox as
a browser, you must allow popups for the configuration program to be able to start it.
Carry out the following steps:
ì Open Mozilla Firefox. Click on Tools and then on Settings.
ì In the Settings window click on the Web features tab.
ì In the Web features window, deactivate the option Block popup windows.
ì Finish by clicking on OK.
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Configuring the local network
Synchronising the TCP/IP settings with the Gigaset SE551 WLAN dsl/cable
You have now configured your PC so that it is ready to be connected to the
Gigaset SE551 WLAN dsl/cable. You now have to release the old TCP/IP settings and
synchronise them with the settings of your Gigaset SE551 WLAN dsl/cable.
ì On the Windows Desktop, click on Start – Programs – Accessories –
Command prompt.
ì In the Command prompt window, enter the ipconfig /release command and
press the ENTER key.
ì Then enter the ipconfig /renew command and press the ENTER key.
If the default IP address (192.168.2.1) of the Gigaset SE551 WLAN dsl/cable was not
changed, the IP address should now read 192.168.2.x (with x being a number
between 2 and 255). The Subnet Mask must always be 255.255.255.0 and the
Default Gateway must have the IP address of the Gigaset SE551 WLAN dsl/cable
(192.168.2.1). These values confirm that your Gigaset SE551 WLAN dsl/cable is
working.
ì Enter exit and press the ENTER key.
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Configuring the local network
Network configuration with Windows 98 SE, ME
To integrate a PC with Windows 98 SE or ME in a local network, you must carry out the
following steps:
1. Set up the PC as the Client for Microsoft Networks (see below).
2. Select computer names and workgroup (see page 42).
3. Install the TCP/IP protocol (see page 43).
4. Make TCP/IP protocol settings (see page 44).
5. Deactivate the http proxy (see page 48).
6. Configuring the popup blocker (see page 48).
7. Synchronise the TCP/IP settings with the Gigaset SE551 WLAN dsl/cable
(see page 49).
Setting up a PC as the Client for Microsoft Networks
Before the PCs on your network can work together, you have to configure them as a
Microsoft Network Client. This is done as follows:
ì Click on Start – Settings – Control Panel.
ì Double click on the Network icon and then open the Configuration tab in the Net-
work window.
ì Check whether the list of components contains the entry Client for Microsoft Net-
works.
ì If it is not there click on Add.
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Configuring the local network
ì Select Client as the network component type and click on Add.
ì Under Manufacturers select Microsoft, and under Network Clients select Client
for Microsoft Networks.
ì Confirm this with OK.
Selecting a computer name and workgroup
You now have to specify a name for the PC and assign it to a workgroup.
ì In the Network window, change from the Configuration register to Identification.
ì In the Computer name field, enter the name the PC is to appear under in the net-
work. This name must be unique within the network.
ì In the Workgroup field, type a name for the workgroup. This name must be the
same for all the PCs in the network.
The Description field can be left empty.
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Configuring the local network
Installing the TCP/IP protocol
The TCP/IP protocol ensures that the PCs in the network can communicate with each
other. You must install this Protocol first for the network adapter that establishes the
connection with the Gigaset SE551 WLAN dsl/cable.
ì In the Network window, change from the Identification register to Configuration.
ì In the Network window, check that there is a TCP/IP -> entry for your network card
or network adapter in the list of components. If, for example, you are using a Gigaset
PC Card 108 as the wireless network adapter, the list must contain the entry TCP/IP
> Siemens Gigaset PC Card 108
ì If the entry does not exist, click on Add.
.
ì Select Protocol as the network component type and click on Add.
ì Under Manufacturers select Microsoft, and under Network protocols select TCP/
IP and click on OK to confirm.
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Configuring the local network
Making TCP/IP settings
The TCP/IP protocol requires certain settings which you will now make so that it can
function smoothly.
ì In the Network window, change to the Configuration tab.
ì Select the TCP/IP > entry for your network card.
ì Click on Properties.
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ì Open the IP address tab.
Configuring the local network
ì If Obtain an IP address automatically has already been activated your PC is already
configured for DHCP. Click on Cancel and close the following windows with OK to
start your network configuration.
You may be prompted to insert your Windows Installation CD. Follow the instructions in the installation procedure.
Once the copying procedure is completed, you will be prompted to reboot your system.
ì Click on Yes . The PC will then be rebooted.
Then read on from page 48.
ì If Obtain an IP address automatically has not been activated, activate this option
now.
ì Open the Gateway tab and remove any entries in the Installed gateways list.
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Configuring the local network
ì Open the DNS Configuration tab.
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Page 49
ì Select Disable DNS.
Configuring the local network
ì Click on OK.
ì Finish the network configuration with OK.
You may be prompted to insert your Windows Installation CD. Follow the instructions in the installation procedure.
Once the copying procedure is completed, you will be prompted to reboot your system.
ì Click on Yes . The PC will then be rebooted.
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Configuring the local network
Deactivating the HTTP proxy
Make sure that the HTTP Proxy in your Web browser is deactivated. This function must
be deactivated so that your Web browser can access your Gigaset SE551 WLAN dsl/
cable's configuration pages.
The following section describes the procedure for Internet Explorer and Mozilla Firefox.
First decide which browser you are using and then follow the appropriate steps.
Internet Explorer
ì Open Internet Explorer. Click on Tools – Internet Options.
ì In the Internet Options window click on the Connections tab.
ì Click on LAN settings.
ì Deactivate all options in the Settings for local network (LAN) window and click on
OK.
ì Click OK again to close the Internet Options window.
Mozilla Firefox
ì Open Mozilla Firefox. Click on Tools and then on Settings.
ì In the Settings window, click on Connection Settings... .
ì In the Connection Settings window, select the option Direct connection to the
Internet.
ì Click on OK to finish.
Configuring the popup blocker
With Mozilla Firefox, popups are blocked by default. If you are using Mozilla Firefox as
a browser, you must allow popups for the configuration program to be able to start it.
Carry out the following steps:
ì Open Mozilla Firefox. Click on Tools and then on Settings.
ì In the Settings window click on the Web features tab.
ì In the Web features window, deactivate the option Block popup windows.
ì Finish by clicking on OK.
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Configuring the local network
Synchronising the TCP/IP settings with the Gigaset SE551 WLAN dsl/cable
You have now configured your PC so that it is ready to be connected to the Gigaset
SE551 WLAN dsl/cable. You now have to release the old TCP/IP settings and synchronise
them with the settings of your Gigaset SE551 WLAN dsl/cable.
ì Click on Start – Run.
ì Typ e WINIPCFG and click on OK.
There may be a slight delay before the IP Configuration window appears.
ì Select your network adapter from the selection list.
ì Click on Release and then on Update.
If the default IP address (192.168.2.1) of the Gigaset SE551 WLAN dsl/cable was not
changed, the IP address should now read 192.168.2.x (with x being a number
between 2 and 255). The Subnet Mask must always be 255.255.255.0 and the
Default Gateway must have the IP address of the Gigaset SE551 WLAN dsl/cable
(192.168.2.1). These values confirm that your Gigaset SE551 WLAN dsl/cable is
working.
ì Click OK to close the IP Configuration window.
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Configuring the local network
Checking the connection to the Gigaset SE551 WLAN dsl/cable
Once the network has been set up on your PC, you can check whether the PC is correctly
connected to the Gigaset SE551 WLAN dsl/cable. This can be done as follows:
ì Open Command prompt. To do this, click on Start – Programs –
Command prompt.
ì Enter the command ping 192.168.2.1.
Please remember:
192.168.2.1 is the default IP address for the Gigaset SE551 WLAN dsl/cable.
If the IP address was changed, enter the new IP address.
The ping command sends data packets to the Gigaset SE551 WLAN dsl/cable with the
specified IP address and checks whether the router responds. If this is the case, the command presents statistics about the connection, e.g. how many data packets were sent,
how many received, how long the transfer took, etc. If you can see this information,
then the connection to the router is functioning properly.
If the command does not return any statistics, but ends with a time-out, this means that
the components cannot communicate with each other. Check the following points:
1. Is the Ethernet cable between the Gigaset SE551 WLAN dsl/cable and the PC correctly connected or is there a wireless connection via a wireless network adapter?
The LED display for the LAN connections on the Gigaset SE551 WLAN dsl/cable and
link display for the network card in your PC must be illuminated. For wireless connections the Gigaset WLAN Adapter Monitor must display connection information.
2. Has TCP/IP been properly configured on your PC?
If the Gigaset SE551 WLAN dsl/cable has the IP address 192.168.2.1, your PC's IP
address must be between 192.168.2.2 and 192.168.2.255. The default gateway
must have the address 192.168.2.1.
If you can successfully address the Gigaset SE551 WLAN dsl/cable with the ping command, then the PC has been configured correctly.
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The user interface
The user interface
Once you have configured the network settings on a PC in your local network, you can
then use that PC to configure the Gigaset SE551 WLAN dsl/cable with the Gigaset SE551
WLAN dsl/cable's user interface. You can use any browser for the configuration,
e.g. Microsoft Internet Explorer 6.0 or higher, Mozilla Firefox 1.0 or higher.
Please remember:
To start the configuration environment you might need to deactivate the HTTP proxy
for your browser (see page 48 for Windows 98 SE/ ME, page 30 for Windows XP, and
page 39 for Windows 2000).
If you use Mozilla Firefox or if you use Internet Explorer and Windows XP Service
Pack 2, you need to configure the popup blocker (see page 31 for Windows XP,
page 39 for Windows 2000, and page 48 for Windows 98 SE/ME).
Launching the user interface
To access the Gigaset SE551 WLAN dsl/cable's user interface:
ì Launch your Web browser.
ì Enter the IP address of the Gigaset SE551 WLAN dsl/cable in the browser's address
field.
http://se551 or http://192.168.2.1
The login screen appears:
As supplied, the default password is admin.
ì Enter the password and click on OK.
Please remember:
For security reasons you should change the password at a later stage
(see page 62).
A screen with security information is displayed.
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The user interface
For the initial configuration you can skip this information. If you carry out all the basic
and security settings using the wizard as described below, then your device and network
are fully protected. If not, the next time you log on you will be informed of security gaps
in the configuration program.
ì Click on OK.
You will now see the start screen.
Note:
You will find information about the currently used and available time and data volume
for your Internet connection by clicking on Traffic Control. There is more detailed
information about this in the section entitled "Traffic Control" on page 132.
The start screen
The start screen is the starting point for all configuration and administration activities.
Start screen functions
On the start screen you can
u select the language for the user interface (see page 54),
u connect to the Internet (see page 122),
u open the Status menu to obtain status information about the Gigaset SE551 WLAN
dsl/cable (see page 117),
u call up the wizard for the basic configuration: Basic Setup Wizard (see page 56),
u call up the Security Setup Wizard (see page 61),
u open the Advanced Settings menu for additional configuration options
(see page 70).
You can call up the wizards, the Advanced Settings menu, and status information from
any other configuration program screen at any time via the tabs on the upper edge of
the user interface.
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The user interface
The configuration program offers you the following functions:
Basic Setup Wizard Use this wizard for the settings required for connecting to the
Internet You can also set data for your region. This is described
from page 56.
Security Setup Wizard This wizard allows you to take precautions against unauthor-
ised access to your Gigaset SE551 WLAN dsl/cable and the
local network. For example, you can assign a password and
set up encryption for wireless traffic. This is described from
page 61. For the protection of your network we recommend
that you carry out this setup.
Advanced Settings Additional functions are offered in the Advanced Settings
menu. For example, you can back up and restore your configuration data, set up your Gigaset SE551 WLAN dsl/cable as a
virtual server for your network, and much more. These configuration steps are optional and can be carried out at a later
stage. This is described from page 70.
Status You can view information about the configuration and status
of your Gigaset SE551 WLAN dsl/cable in the Status menu.
This is described from page 126.
Internet status You can view the status of your Internet connection and can
establish a manual connection to the Internet (see page 117).
Language You can select the language for the user interface
(see page 54).
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The user interface
Selecting a language
The user interface can be presented in various languages.
ì Click on Language on the top right above the screen.
ì If you wish to change the preset language, select the required language from the
list.
ì Click OK to apply the setting.
You might have to load the file for the language you require. Follow the on-screen
instructions on the user interface.
Reboot the device to activate the change. Confirm the reboot in the dialogue field
shown.
Once the procedure has been concluded the start screen is shown again.
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The user interface
Elements on the user interface
The user interface pages contain the following elements:
Log Off button
The Log Off button is always present on the right above the user interface. If you click
on Log Off the session is terminated and the login screen appears again.
Help
Click on the question mark to display explanations about the current
user interface screen.
Buttons and symbols used by the wizards
The wizards use graphic symbols to show which steps you have
already carried out.
As soon as you have changed the configuration in a screen, you can activate the new
setting by clicking on Next > at the bottom of the screen. The Back button returns you
to the previous configuration step, and < Back returns you to the start screen.
Buttons in the Advanced Settings menu
OK Transfers the settings you have made to the Gigaset SE551 WLAN
dsl/cable configuration.
Cancel Deletes all the entries in a screen since the last time you clicked
on OK. This button is not available for the initial configuration of
the device.
Other buttons may be visible depending on the function in question. These are
described in the relevant sections.
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Basic Setup Wizard
Basic Setup Wizard
The Basic Setup Wizard guides you step by step through the general configuration of the
Gigaset SE551 WLAN dsl/cable. This includes settings for your region and for your Internet access.
Connection to the Internet is established via the Gigaset SE551 WLAN dsl/cable for all
PCs connected to it. You need your Internet Provider's access data for the configuration.
Please have this data to hand.
Please remember:
The Basic Setup Wizard will reconfigure your Internet settings if this has already been
done previously. This does not affect the WLAN and LAN settings.
The access data is stored in the Gigaset SE551 WLAN dsl/cable during configuration.
Before passing the device on to somebody else or having your dealer replace it, you
should first restore the factory settings (see page 123). Otherwise unauthorised persons may use your Internet access data at your expense.
ì Select Basic Setup Wizard on the start screen to start the configuration.
ì Click on Next >.
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Basic Setup Wizard
Regional Options
On this screen you select your present location for the regional options.
ì Select the country where you are currently located from the list. You can make the
settings for the clock to change automatically to summer time and/or to the time
zone as you wish.
ì Select the required option and/or select the time zone for your location.
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Basic Setup Wizard
Configuring Internet connection
You will find the access data you need for configuring the Internet connection in the
documentation received from your Internet Provider (ISP).
ì Select your service provider from the Service provider selection menu. If your Inter-
net provider is not included in the list, select the option Other.
ì Enter the data you have been given by your Internet provider.
Please remember:
Connection to the Internet is only possible if you have entered all the data
for your Internet provider correctly.
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Basic Setup Wizard
ì Select how Internet sessions are to be established via Connection mode:
–Select Always on if the connection is to exist at all times when the Gigaset SE551
WLAN dsl/cable is switched on.
Please remember:
If you have a time-based tariff this option can result in high connection
charges.
–Select Connect on demand if applications such as a Web browser or an e-mail
program are to connect to the Internet automatically.
–In the Idle time before disconnect field, enter a period of time after which the
Internet connection is to be automatically ended if no data is transmitted (default
setting: 3 minutes).
You can deactivate this function by entering "0". This means that the connection
wi ll c ont inu e to exi st even if n o da ta i s tra nsm itted. I f yo u have a ti me- bas ed t arif f
this can cause high charges. In this case you should enter a value other than "0".
This time setting only applies to the Connect on demand option.
–Select Connect manually if you always want to establish and end the connection
to the Internet manually. If you have a time-based tariff this will save you high
connection charges. How to establish a connection manually is described on
page 122.
ì Click on Test Settings to check the Internet connection. The router will attempt to
connect to the Internet. Any Internet connection already in existence will be closed
first.
You will find information about the test steps and results on the Internet Connec-
tion Test screen.
PPPoE pass-through
PPPoE pass-through enables you to use an additional Internet connection (with another
service provider) from one PC. You can find detailed information about this on page 76.
ì Activate PPPoE pass-through if you wish to use this function.
ì When you have entered the data, click on Next >.
Using UPnP (Universal Plug and Play)
PCs with UPnP (Universal Plug & Play) can offer their own network services and automatically use services offered on the network. You can find detailed information about this
on page 74.
ì Activate UPnP if you wish to use this function.
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Basic Setup Wizard
Summary
In the next step the basic settings you have made through the wizard are shown for you
to check.
ì If you want to make changes to the settings, click on < Back.
ì If you want to confirm the settings, click on Finish to close the basic setup wizard.
You will then be taken automatically to the start screen for the Security Setup Wizard.
If you want to carry this out at a later stage, deactivate the option I would like to run
the Security Setup Wizard now.
The Gigaset SE551 WLAN dsl/cable is now configured and ready to connect to the Internet.
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Security settings
Security settings
The Security Setup Wizard offers you additional settings for improving your network
security. You can
u assign a Password for configuring the Gigaset SE551 WLAN dsl/cable (see page 62),
u change the ID for your wireless network (SSID) (see page 63),
u set the Encryption for wireless traffic (see page 64),
u limit access to your wireless network to certain PCs (see page 76).
The Gigaset SE551 WLAN dsl/cable's user interface will guide you through the security
configuration step by step. Once you have completed a screen, click on Next >. If you
want to make any changes or check your entries, click on < Back.
ì Select Security Setup Wizard on the start screen or in the tab to start the security
configuration if you did not go straight to the start screen for the security settings
after making the basic settings.
ì Click on Next > to continue.
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Security settings
Assigning a Password
In the first step of the setup you can assign a Password for the user interface. When
supplied, the configuration of your Gigaset SE551 WLAN dsl/cable is not protected with
a Password. To prevent unauthorised changes to the configuration, you should set a
Password and change this Password from time to time.
ì If you have already set a Password, enter the old Password in the Current password
field.
ì Enter a new password in the New password field, and repeat it in the Confirm new
password field.
The Password can be up to 32 alphanumerical characters long. The SSID is case sensitive. Avoid proper names and all too obvious words. Mix letters and numbers
together.
Please remember:
If you ever forget your Password you will have to reset your Gigaset SE551 WLAN
dsl/cable (see page 17). Please bear in mind that this will restore all the settings to
the factory configuration. No Password will be active either.
ì To go to the next step, click on Next >.
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Security settings
SSID
Before the wireless network components can communicate with each other, you must
use the same SSID (Service Set Identifier).
The default SSID for the Gigaset SE551 WLAN dsl/cable is ConnectionPoint. For security
reasons you should change this SSID and deactivate SSID broadcast.
If this option is enabled, the Gigaset SE551 WLAN dsl/cable will send the SSID in all data
transmissions, and your Gigaset SE551 WLAN dsl/cable's SSID will be displayed on PCs
that have a wireless network adapter. In this case unauthorised persons could use the
SSID to gain access to your network.
ì Enter a character string of your choice in the SSID field. The SSID is case sensitive.
It can be up to 32 alphanumerical characters long.
Make a note of the SSID. You will need this to register your PC.
Please remember:
The connection to the wireless network adapters will be broken until the new SSID
has been entered in them as well.
By default SSID broadcast is inactive. For security reasons you should not change this
preconfiguration.
ì Click on Next > to proceed to the next step.
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Security settings
Setting security functions for the wireless network
In the next step you can set the encryption and authentication methods for your wireless network.
Wireless networks are even more strongly exposed to the risk of eavesdropping than
wired networks. With conventional network adapters an intruder only needs a device
with a WLAN adapter (e.g. a Notebook or a PDA (Personal Digital Assistant)) with an
appropriately configured network card in order to eavesdrop on every communication
made via a nearby wireless LAN.
The Gigaset SE551 WLAN dsl/cable makes use of effective encryption methods to prevent unauthorised eavesdropping as far as possible.
You can use the following security mechanisms:
u WPA2-PSK or WPA2-PSK / WPA-PSK (see below)
u WEP encryption (Wired Equivalent Privacy, see page 66)
We recommend using WPA2-PSK if it is supported by all components in your wireless
network.
You will find further options for setting data encryption and authentication in the
Advanced Settings menu (see page 101).
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Security settings
WPA2 / WPA with Pre-shared key (PSK)
WPA is a more advanced procedure than WEP for protecting wireless networks. Dynamic
keys based on TKIP (Temporal Key Integration Protocol) offer increased security. The
new standard WPA2 uses AES for the encryption.
WPA-PSK is a special WPA mode for users at home and in small companies without a
company authentication server. Encryption keys are automatically generated with the
Pre-shared key, automatically changed ( "rekeying") and authenticated between the
devices after a certain period of time (Rekey Interval).
Please remember:
Every PC (network adapter) that requires access to a wireless network protected by
WPA must also support WPA. To find out whether and how you can use WPA on your
PC, read your network adapter's operating instructions.
ì Select the option WPA2-PSK if it is supported by all components in your wireless
network.
or
ì Select the option WPA2-PSK / WPA-PSK if some or all components in your wireless
network support WPA with the TKIP protocol.
ì Enter a key of your choice in the Pre-shared key field (min. 8 to max. 63 characters)
and confirm it by repeating the entry.
You must also set the same Pre-shared key for all wirelessly connected PCs.
ì To go to the next step, click on Next >.
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Security settings
WEP encryption
WEP (Wired Equivalent Privacy) is an encryption procedure for radio signals in wireless
networks and meets the standard IEEE 802.11.
If you transmit data wirelessly and not all components in your wireless network support
the higher security standard WPA (see page 65), we recommend that you activate WEP-
Encryption on these network components.
You can choose either the standard 64-bit key or the more robust 128-bit key for encryption. The keys are generated in hexadecimal or in ASCII format. You must use the same
keys for encryption and decryption for the Gigaset SE551 WLAN dsl/cable and all your
wireless network adapters.
ì Select the Key length: 64 bit or 128 bit.
ì Select the Input type, i.e. whether you wish to enter the key manually or have it
generated automatically by means of a Passphrase.
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Security settings
Manual key entry
ì Select the Key type, Hex or ASCII.
.
If you select Hex you can use the characters 0 to 9 and A to F.
– With a 64-bit encryption depth the key is exactly 10 characters long.
An example of a valid key: 1234567ABC
– With a 128-bit encryption depth the key is exactly 26 characters long.
An example of a valid key: 234567ABC8912345DEF1234567
If you select ASCII you can use the characters 0 to 9, A to Z and a to z plus the special
characters in the ASCII character set.
– With a 64-bit encryption depth the key is exactly 5 characters long.
An example of a valid key: GIGA1
– With a 128-bit encryption depth the key is exactly 13 characters long.
An example of a valid key: GIGASET_SE551
ì Confirm the key by entering it again in the Confirm key field.
Generating the key by means of a Passphrase
ì Enter a Passphrase (up to 32 characters) and confirm it by entering it again. The key
is generated automatically.
Please remember:
u It is very important that you make a note of the key or passphrase. You will
need this information to configure the wireless network adapters properly.
u When you have concluded the Security Setup Wizard you must change the
WEP encryption on the wireless network adapters for the connected PCs in the
same way as they will not otherwise be given access to the Gigaset SE551
WLAN dsl/cable's wireless network.
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Security settings
ì To go to the next step in the Security Setup Wizard, click on Next >.
Access control within the wireless network
In this step you can specify which PCs will have wireless access to the Gigaset SE551
WLAN dsl/cable and hence to your LAN. The access control is based on the MAC address
of the PCs' network adapters. You can enter the MAC addresses for the PCs manually or
select them from the list of PCs that are currently logged in.
The default setting for access control is disabled. This means that all PCs that use the
correct SSID can log in.
ì Next to MAC address filter select the option On to activate the MAC filtering.
Entering MAC addresses manually
ì Enter the MAC address of the network adapter. You will find this address on the bot-
tom of the device.
ì Enter the name of the PC.
ì Click on the Add button to add the entry to the list.
Selecting from the list of logged-in PCs
ì Select the required PC from the Known wireless clients list. All PCs are displayed
that are currently logged in to the router with the correct SSID.
ì Click on the Add button to add the selected PC to the list.
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Security settings
Please remember:
If you activate MAC access control, you must at least enter the PC from which you
are configuring the Gigaset SE551 WLAN dsl/cable. Otherwise you will no longer
be able to access the user interface and a corresponding error message will be
shown.
If, by mistake, you have denied all PCs access to the Gigaset SE551 WLAN dsl/cable
you have two choices:
u You can completely reset the Gigaset SE551 WLAN dsl/cable (see page 17).
u You can connect a PC to the Gigaset SE551 WLAN dsl/cable using one of the
LAN connections (by cable). As MAC access control only applies to PCs that are
connected "wirelessly", you can use this PC to change the configuration.
ì To go to the next step, click on Next >.
Saving settings
On the next screen you conclude the wizard and save the settings. You will be informed
of any security risks that still exist.
ì Click on Finish to conclude the wizard.
The settings will now be active on your Gigaset SE551 WLAN dsl/cable.
Please remember:
You must now configure WEP or WPA key for your PC's wireless network adapter, if this
has been configured with other values. Once you have done this you can log in to your
Gigaset SE551 WLAN dsl/cable wirelessly again.
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Configuring the Advanced Settings
Configuring the Advanced Settings
In the Advanced Settings menu, you can configure all the options for the
Gigaset SE551 WLAN dsl/cable. If you want, you can also make changes to the settings
you made using the wizard. The following table shows the options in the menu.
Menu Description
Internet This menu comprises all the setting options relating to the
Internet. In particular, you can
u check and change the configuration for Internet access (see
page 71) or specify a preferred DNS server (see page 75),
u set up time and volume control for your Internet access (see
page 77),
u configure the firewall, i.e. a number of security and special
functions, e.g. access control for local PCs to the Internet or
blocking certain Internet sites (see page 79),
u make the NAT settings needed to provide your own services
on the Internet (see page 88).
u set up dynamic DNS for a static Internet address on your
device (see page 93),
u configure the Quality of Service (see page 95).
Local Network Here you can change the Private IP address of the Gigaset
SE551 WLAN dsl/cable and make settings on the DHCP server
(see page 96).
Wireless Network Here you can configure the options for wireless communication
(SSID and encryption) and restrict access to the Gigaset SE551
WLAN dsl/cable (see page 71).
USB Here you can make the settings for operating an external
data carrier, a Web server or a printer server on the USB port
(see page 109).
Administration Here you can make or change various system settings, e.g.
assign a password (see page 119), set the time (see page 118),
or activate remote management (see page 120).
You can also back up the data on your Gigaset SE551 WL AN dsl/
cable or load new firmware (see page 122).
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Configuring the Advanced Settings
Internet
If you have configured your Gigaset SE551 WLAN dsl/cable using the two wizards you
have also already configured the WAN connection (Internet access). You can check or
change these settings in the Internet menu.
This menu also offers you a wide range of possibilities for security settings and limiting
access to the Internet as well as for providing your own services on the Internet.
Via the Internet menu you can
u check and edit the Internet configuration of the Gigaset SE551 WLAN dsl/cable
(see below),
u enter the PC's registered MAC address for Internet access (WAN interface)
(for cloning the MAC address, see page 76),
u make DNS server settings (page 75),
u configure time and volume control for using the Internet (see page 77),
u protect your network against unauthorised access from outside (firewall) and limit
or block access to Internet sites (see page 79),
u provide your own services on the Internet (NAT, see page 88),
u set up dynamic DNS (see page 93),
u define QoS properties (priorities for data transfer) (see page 95).
Internet Connection
On this screen you can set up or change the configuration of your Internet connection.
Any settings you make here must coincide with the features your Internet provider
makes available to you. False information can lead to problems with your Internet connection.
ì If you wish to set up or change the settings for the Internet connection,
select Internet Connection in the Advanced Settings – Internet menu.
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Configuring the Advanced Settings
ì Select your Internet provider from the Service provider list.
ì Enter the data you have been given by your Service provider in the relevant fields.
Please remember:
To configure the Internet connection successfully all fields must be filled in with
the precise details given by your provider.
ì Select how Internet sessions are to be established via Connection mode:
–Select Always on if the connection is to exist at all times when the Gigaset SE551
WLAN dsl/cable is switched on.
Please remember:
If you have a time-based tariff this option can result in high connection
charges.
–Select Connect on demand if applications such as a Web browser or an e-mail
program are to connect to the Internet automatically.
–In the Idle time before disconnect field, enter a period of time after which the
Internet connection is to be automatically ended if no data is transmitted (default
setting: 3 minutes).
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Configuring the Advanced Settings
You can deactivate this function by entering "0". This means that the connection
wi ll c ont inu e to exi st even if n o da ta i s tra nsm itted. I f yo u have a ti me- bas ed t arif f
this can result in high charges. In this case you should enter a value other than
"0".
This time setting only applies to the Connect on demand option.
–Select Connect manually if you always want to establish and end the connection
to the Internet manually. If you have a time-based tariff this will save you high
connection charges. How to establish a connection manually is described on
page 117.
ì Click on Test Settings to check the Internet connection. The router will attempt to
connect to the Internet. Any Internet connection already in existence will be closed
first.
You will then be returned to the Internet Connection screen. If necessary, you can
now amend your entries.
ì If the test was successful, click on OK to apply the settings.
PPPoE pass-through
If you activate the PPPoE pass-through function a PC in the network can connect to the
Internet via its own connection ID. The router puts these connections through.
ì In the Advanced Settings – Internet menu, select Internet Connection.
ì Select the option On to activate PPPoE pass-through.
ì Click on OK to apply the settings.
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Using UPnP (Universal Plug and Play)
PCs with UPnP (Universal Plug & Play) can offer their own network services and automatically use services offered on the network.
Please remember:
The PC must have Windows ME or Windows XP as its operating system. Check whether
the UPnP function has been installed in your PC's operating system. It may be necessar y to retrospectively install the UPnP components even on Windows XP or Windows
ME systems. Please consult your PC's operating instructions.
As soon as you have installed UPnP in the operating system of a PC and activated it on
the router, applications on this PC (e.g. Microsoft Messenger) can communicate via the
Internet without your needing to expressly authorise it. In this case, the router automatically implements port forwarding (Port Forwarding, see page 91), thereby facilitating
communication via the Internet.
You will see a symbol for your Gigaset SE551 WLAN dsl/cable on the task bar on the PC
on which UPnP is installed. Windows XP systems will also include the icon under network connections. Clicking on this icon opens the Gigaset SE551 WLAN dsl/cable's configuration screens.
ì In the Advanced Settings – Internet menu, select Internet Connection.
ì Select UPnP.
Please remember:
When the UPnP function is active, system applications can assign and use Ports on
a PC. This can be a security risk.
ì Click on OK to apply the settings.
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DNS server
DNS is a decentralised service which assigns PC names or Internet addresses (Domain
names) and IP addresses to one another. A DNS server has to administer this information
for each server or each LAN with an Internet connection.
Normally your Internet provider provides you with a DNS server which makes this
assignment when connection is made to the Internet. If necessary you can define the
DNS server to be used for the Internet connections manually.
ì In the Advanced Settings – Internet menu, select DNS Servers.
ì Activate the Use custom DNS servers function via the option On.
ì Enter the IP addresses for your preferred DNS servers (Preferred DNS server and
Alternate DNS server).
ì Click OK to apply the settings.
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MAC address
If you had Internet access through the same Internet provider before connecting the
Gigaset SE551 WLAN dsl/cable, then it is possible that the MAC address of one of your
PCs has been used for registration when the connection was being set up. You must
then either replace the current MAC address with the MAC address registered with the
Internet provider or ask your Internet provider to register a new MAC address for your
account.
Carry out the following steps:
ì Connect a PC to the Gigaset SE551 WLAN dsl/cable and open the configuration envi-
ronment.
ì In the Advanced Settings – Internet menu, select MAC Address.
ì Select which MAC address is to apply to the Internet connection:
– Use default device MAC address: You can leave this default setting if the
MAC address of the Gigaset SE551 WLAN dsl/cable is used for connecting to the
Internet.
– Use MAC address of this PC: Select this option if the MAC address of the cur-
rently connected PC has previously been registered for connecting to the Internet
or if you have re-registered the MAC address of the PC on which you are currently
working.
– Use custom MAC address: Select this option if you have asked your Internet pro-
vider to register a new MAC address and this is not the MAC address of the PC on
which you are currently carrying out the configuration.
ì Click on OK to apply the settings.
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Traffic Control
Traffic Control allows you to control monthly Internet use in terms of online time and
transmitted data volume. You can specify general limits for your local network and individual ones for individual PCs.
Note:
Traffic Control is only possible if the Internet connection is established directly through
the Gigaset SE551 WLAN dsl/cable and not via a PC or a different router.
ì In the Advanced Settings – Internet menu, select Traffic Control.
ì If you want to monitor and limit monthly Internet use within your network, select
the option On for Traf f ic Control.
ì In the Reset traffic counters field, enter the day of the month on which the
counters for the time and volume are automatically reset. Ask your Internet provider
about the relevant billing day.
ì Activate the option Automatically disconnect from the Internet, if the Internet
connection is no longer to be available when a time or volume limit is exceeded.
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Global time limit
ì Activate or deactivate the time limit available to all users in your network for surfing
the Internet each month. This makes sense if your Internet tariff is time-based.
ì Enter the total amount of time available per month in hours.
Global volume limit
ì Activate or deactivate the limit on the data volume available to all users in your net-
work for surfing the Internet (download and upload) each month. This makes sense
if your Internet tariff is volume-based.
ì Enter the total volume of data available per month in megabytes (MB).
Individual limits
You can specify individual limits for data volumes for individual PCs within your network.
ì Select or deselect Individual limits.
ì Enter the MAC address of the PC and a device name for identification.
ì In the Volume limit field, enter the data volume available per month in megabytes
(MB). A standard volume limit is used for all non-listed clients.
ì Click on Delete to delete an entry.
ì Click on Add to create a new entry with the entered data or for the selected PC.
ì Click on OK to save and apply the changes.
You can check at any time how much time and volume is still available this month in the
Status – Traf f ic Control menu (see page 132) and on the login screen for the configuration program under Traffic Control (see page 51).
Please remember:
The values recorded by your device for online time and transmitted data volume are
only intended for your guidance and may differ from the exact values determined by
your Internet provider.
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Firewall
The firewall functions of the Gigaset SE551 WLAN dsl/cable include various security
functions for your local network.
You can :
u protect your network against hacker attacks (see below),
u block individual PCs' access to selected services or Internet sites (see page 83) or
restrict them by means of a schedule rule (see page 86).
The firewall functions for Gigaset SE551 WLAN dsl/cable are activated and configured in
the factory. If you wish to deactivate the firewall, carry out the following steps:
ì In the Advanced Settings – Internet menu, select Firewall.
ì Select the required option.
ì Click OK to apply the settings.
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Attack detection
If the firewall functions of your Gigaset SE551 WLAN dsl/cable are activated, the device
monitors and limits the access of incoming traffic via the DSL connection with a function called Stateful Packet Inspection (SPI). This allows the Gigaset SE551 WLAN dsl/
cable to identify and prevent certain types of attack from the Internet, such as Denialof-Service (DoS). DoS attacks are aimed at devices and networks with Internet connections. The aim is not so much to steal data but to paralyse the computer or network to
such an extent that the network resources are no longer available. A typical hacker
attack involves making a remote computer announce that it is acting for the paralysed
device, for example, and receive the data meant for it.
You can use the Attack Detection function to change the standard firewall settings and
arrange to be notified by email about any attempted hacker attacks.
ì In the Advanced Settings – Internet – Firewall menu, select Attack Detection.
ì Select the security level for the firewall.
The default setting is Medium, which combines a high degree of security with little
effect on functionality.
– The level High offers you maximum security with possibly limited functionality
for special applications.
– The level Low offers you maximum functionality with possibly reduced security.
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–Select Custom to determine the criteria for defence against hacker attacks your-
self. Further setting options are then shown in the window.
E-mail notification of a hacker attack
You can choose to be informed by e-mail about a possible hacker attack.
ì Enter the following in the dialogue fields:
– Select the Notification interval, i.e. at what intervals you wish to be informed
about hacker attacks. If hacker attacks have been identified and blocked in the
intervening period, you will receive a summary about each event.
– E-mail address to notify: Enter the e-mail address to which the notifications are
to be sent.
– Outgoing mail server (SMTP): Enter the address of the outgoing mail server
through which your device can send you the notifications.
– Incoming mail server (POP3): If your outgoing mail server demands authentica-
tion via POP3 before e-mails can be sent, enter the address of the outgoing mail
server here.
–Enter your User name and the relevant Password.
ì Click on Test Settings to check the details for the e-mail notification.
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User-defined settings
u Stateful Packet Inspection
Your device monitors and limits the access of incoming traffic from the Internet with
SPI (Stateful Packet Inspection). This allows it to identify and block certain types of
attack such as Denial-of-Service (DoS). A typical DoS attack involves a remote computer paralysing a system and announcing that it is acting for the paralysed device
in order to receive the data meant for it. For the level Custom you can specify yourself whether you wish to activate SPI on your device and which exceptions you wish
to make.
ì Activate or deactivate Stateful Packet Inspection for your device's Internet connec-
tion.
ì Select the services for which you also wish to allow incoming Traffic if it has been
initiated by a client in your LAN. If you select the All option at the end of the list you
can allow all services.
ì Click OK to apply the settings.
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Setting up access control to the Internet
The Access Control function allows you to block access to various Internet services for
one or more PCs. You can limit these blocks to certain days and hours with Schedule
Rules.
ì Select Access Control in the Advanced Settings – Internet – Firewall menu.
ì Activate the Access Control function via the option On.
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You have the following setting options for Access Control:
Access Rules
You can limit access to the Internet for all or for certain clients in your local network. You
can assign a Schedule rule to each access rule and allow or block access to URLs and
services.
ì Click on Edit to create an access rule.
ì Select the Access rule type from the list:
– Apply to all clients: The rule applies to all PCs in your network.
– Specify IP address range: You select the PCs to which the rule is to apply by
entering an IP address block.
– Specify IP address or Specify MAC address: The rule applies to a PC you select
via the IP address or MAC address.
ì Select a Schedule rule: The default setting is Always. You can create more
Schedule Rules in the Access Control field (see page 86).
ì Enter a name for the Comment of the access rule.
ì Enter a name for the access rule in the Comment field.
ì Define the Access level.
You can apply Deny access to the Internet, Allow web browsing with URL filter,
Allow web browsing or make user-defined settings.
If you select the option Allow web browsing with URL filter, you must define the
URL filter (see page 86).
If you select Custom, you have the following options:
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–In Filtering mode, determine whether the services you select are to be allowed
or blocked.
– Select the Services you wish to allow or block.
Select the Protocol and enter the appropriate Port (a single port number,
several individual port numbers separated by commas, port blocks consisting
of two port numbers separated by a dash, or any combination of these,
e.g. 80,90-140,180). The displayed Comment assists you to identify different
services.
– Activate the Filter option to use the service concerned for the service filter.
– You can also select services from the Predefined applications list.
– Click on Delete to delete an entry. Click on Add to create a new entry with the
entered data or for the selected, predefined application.
ì Click OK to apply the settings.
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Configuring the Advanced Settings
Schedule Rules
If you have set up an access rule (see page 84) for certain services in the Internet. you
can control it by means of a schedule rule. A schedule rule determines the period for
which a defined access control is active.
You can define several rules. A rule takes effect when you select Access Rules in the
menu and activate it.
ì In the Access Control field under Schedule Rules, click on Edit.
ì Assign a name to the new rule under Comment. This name will then appear in the
selection list on the screen for the menu entry Access Rules.
ì Click on Add to define a new rule.
ì Select the day of the week from the list or else the option Every day.
ì Enter the time for the rule to Begin and End.
ì Click OK to apply the settings.
URL filter
The URL filter allows you to block access to certain Internet sites or Internet domains or
to limit access to certain Internet sites. Once you have entered the relevant URLs you can
then create access rules that apply the URL filter for the selected clients in your network.
ì In the Advanced Settings – Internet – Firewall menu, select Access Control.
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ì Select Filtering mode, i.e. whether you wish to allow or block access to the URLs in
the list.
ì Enter the required URL in the field.
ì Click on Delete to delete an entry. Click on Add to create a new entry.
ì Click OK to apply the settings.
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Configuring the Advanced Settings
Setting up the NAT function
Your Gigaset SE551 WLAN dsl/cable comes provided with the NAT (Network Address
Translation) function. With Address Mapping, several users on your local network can
access the Internet via one or more public IP addresses. In the default setting, all the
local IP address are mapped to your router's public IP address.
One feature of NAT is that data from the Internet is not allowed into your local network
unless it has been explicitly requested by one of the PCs on that network. Most Internet
applications run behind the NAT firewall without any problems. If you request Internet
pages, for example, or send and receive e-mails, the request for data from the Internet
comes from a PC on the local network and so the router allows the data through. The
router opens exactly one port for the application. A port is an internal PC address
through which the data is exchanged between a server on the Internet and a client on
a PC in the local network. Communicating via a port follows the rules of a particular protocol (TCP or UDP).
If an external application tries to send a call to a PC within the local network, the router
will block it. There is no open port via which the data could enter the local network.
Some applications, such as games on the Internet, require several links, i.e. several ports
so that the players can communicate with each other. In addition, these applications
must also be permitted to send requests from other users on the Internet to the user on
the local network. These applications cannot work if Network Address Translation (NAT)
has been activated.
Using port forwarding (the forwarding of requests to particular ports) you make the
router forward requests from the Internet for a certain service, e.g a game, to the appropriate port or ports on the PC on which the game is running.
Port triggering is a specific variant of port forwarding. Unlike port forwarding, in this
case the Gigaset SE551 WLAN dsl/cable forwards data from the set port block to the PC
which has previously sent data to the Internet via a certain port (trigger port). This
means that approval for the data transfer is not tied to one specific PC in your network,
but only to the port numbers of the required Internet service.
Where configuration is concerned, this means:
u You have to define a so-called trigger port for the application and also the protocol
(TCP or UDP) that this port uses. Then you assign to this trigger port the public ports
that have to be opened for the application.
u The router checks all outgoing data for the port number and protocol. If it recognises
a match of port and protocol to a defined trigger port, then it will open the assigned
public ports and notes the IP address of the PC that sent the data. If data comes back
from the Internet via one of these public ports, it allows the data through and directs
it to the right PC. A trigger event always comes from a PC within the local network.
If a trigger port is addressed from outside, it is simply ignored by the router.
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Please remember:
u An application that is configured for port triggering can only be run by one user in
the local network at a time.
u As long as the public ports are open, they can be used by unauthorised persons to
gain access to a PC in the local network.
When the Gigaset SE551 WLAN dsl/cable is supplied, the NAT funct io n ( Netw or k Addre ss
Translation) is activated, i.e. all IP addresses of PCs in the local network are converted to
the router's public IP address when accessing the Internet.
You can use the NAT settings for the Gigaset SE551 WLAN dsl/cable to
u set up port triggering for special applications (see page 90),
u set up the Gigaset SE551 WLAN dsl/cable as a virtual server by configuring Port For-
warding (see page 91),
u open the firewall for selected PCs (see page 92).
Please remember:
For the functions described below you must make sure that the IP addresses of the
PCs do not change. If the IP addresses of the PCs are assigned via the DHCP server
of the Gigaset SE551 WLAN dsl/cable, you must select the option Never expires
(see page 97) for the settings on the Local Network screen for Lease time or assign
static IP addresses for the PCs.
You can activate or deactivate the NAT function (default setting: NAT function is activated).
ì In the Advanced Settings – Internet menu, select Address Translation (NAT) and
select the required option.
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Port Triggering
If you configure Port Triggering for a certain application, determine a so-called trigger
port and the protocol (TCP or UDP) this port uses. Then you assign to this trigger port
the public ports that have to be opened for the application.
You can select known Internet services for this or assign ports or blocks of ports manually.
ì To set up port triggering for a service, in the Address Translation (NAT) menu,
select Port Triggering.
ì Select the required application from the Predefined applications list.
ì Click the Add button. The data for the required service is entered on the screen.
ì Select the option in the Enabled column.
If the application you require is not in the list, then you must enter the relevant data on
the screen manually:
ì Local protocol: Select the protocol that is to be monitored for outgoing traffic.
ì Local port: Enter the port that is to be monitored for outgoing traffic.
ì Public protocol: Select the protocol that is to be allowed for incoming data traffic.
ì Public port: Enter the port that is to be opened for incoming traffic.
Note:
You can enter a single port number, several individual port numbers separated by
commas, port blocks consisting of two port numbers separated by a dash, or any
combination of these, e.g. 80,90-140,180).
ì Comment: Enter a description to help you identify different entries.
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Configuring the Advanced Settings
ì Select the option in the Enabled column.
ì Click on the Delete button to delete an entry. Click on the Add button to add a new
entry.
ì Apply the settings by clicking OK.
Port Forwarding
If you configure Port Forwarding, the Gigaset SE551 WLAN dsl/cable outwardly assumes
the role of the servers. It receives requests from remote users under its public IP address
and automatically redirects them to local PCs. The private IP addresses of the servers on
the local network remain protected.
Internet services are addressed via defined port numbers. The Gigaset SE551 WLAN dsl/
cable needs a mapping table of the port numbers to redirect the service requests to the
server that actually provides the service. For this, Port Forwarding has to be configured.
ì To set up port forwarding for a service, select Port Forwarding in the
Address Translation (NAT) menu.
ì Select the required application from the Predefined applications list.
ì Click the Add button. The data for the required service is entered on the screen.
ì Select the option in the Enabled column.
If the application you require is not in the list, then you must enter the relevant data on
the screen manually:
ì Select the protocol of the service you are providing from the Protocol list.
ì Under Public port, enter the port number of the service you are providing.
ì In the Local port field, enter the internal port number to which service requests are
to be forwarded.
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Configuring the Advanced Settings
ì In the Local IP address field, enter the IP address of the PC which provides the serv-
ice.
Example: the Web server has been configured to react to requests on port 8080.
However, the requests from websites enter by port 80 (standard value). If you add
the PC to the forwarding table and define port 80 as the public port and Port 8080
as an internal port, all requests from the Internet are diverted to the service with the
port number 80 on the Web server of the PC you have defined with port 8080.
Note:
You can enter a single port number, several individual port numbers separated by
commas, port blocks consisting of two port numbers separated by a dash, or any
combination of these, e.g. 80,90-140,180).
ì Click on Add.
ì Click on Delete if you wish to delete the data in the relevant line again.
ì Select the option in the Enabled column.
ì Click OK to apply the settings.
Opening the firewall for selected PCs (Exposed Host)
You can set up a client in your local network to be an exposed host. Your device will
them forward all incoming data traffic from the Internet to this client. You can then, for
example, operate your own Web server on one of the clients in your local network and
make it accessible to Internet users.
As the exposed host your local client is directly visible to the Internet and therefore particularly exposed to risk (e.g. from hacker attacks). You should only activate this function if it is absolutely necessary (e.g. to operate a Web server) and other functions
(e.g. port forwarding) are not adequate. In this case you should take appropriate measures on the clients concerned.
Please remember:
Only one PC per public IP address can be set up as Exposed Host (see also the section
"Port Forwarding" on page 91.
ì To set up a PC as Exposed Host, select Exposed Host in the Address Translation
(NAT) menu.
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Configuring the Advanced Settings
ì Enter the Local IP address of the PC that is to be enabled as Exposed Host.
ì Enter a name for the PC in the Comment field.
ì Activate the entry by selecting the option.
ì Click on the Add button to add the entry to the list.
ì Click on the Delete button to delete the entry from the list.
ì Apply the settings by clicking OK.
Dynamic DNS
Any service you provide on the Internet can be accessed by Domain names. Your router's
Public IP address is assigned to this domain name. If your Internet Service Provider for
your local network's WAN connection assigns the IP address dynamically, the IP address
of the router can change. The assignment to the domain name will no longer be valid
and your service will no longer be available.
In this case you must ensure that the assignment of the IP address to the domain name
is regularly updated. This is handled by the dynamic DNS service (DynDNS). You can use
the DynDNS service to assign your Gigaset SE551 WLAN dsl/cable an individual static
domain name on the Internet even if it does not have a static IP address.
There are various providers on the Internet offering free DynDNS service.
The Gigaset SE551 WLAN dsl/cable uses the DynDNS service from DynDNS.org
(http://www.DynDNS.org)
service can be reached on the Internet as a subdomain of one of the DynDNS.org
domains.
.If you use the service of this DynDNS provider, then your
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Configuring the Advanced Settings
If you have activated the device's DynDNS function, it will monitor its public IP address.
When this changes, it will open a connection to DynDNS.org and update its IP address
there.
Please remember:
You have to open an account with DynDNS.org before you can use the Gigaset SE551
WLAN dsl/cable's DynDNS function. Follow the instructions on the DynDNS.org. website. Then enter the user data when configuring the router.
ì To use the router's DynDNS function, select Dynamic DNS in the Advanced Set-
tings – Internet menu.
ì Activate the Dynamic DNS function.
ì From the Service provider list, select the service offering dynamic DNS
(DynDNS.org or TZO.com).
ì Enter Domain name, User name and Password. You will have received the neces-
sary information when registering with your Service provider.
ì Click on OK to apply the settings.
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Configuring the Advanced Settings
QoS (Quality of Service)
Many communication and multimedia applications require high speed and large bandwidths to transfer data between the local network and the Internet. However, for many
applications there is often only one Internet connection with limited capacity available.
QoS (Quality of Service) divides this capacity between the different applications and
provides undelayed, continuous data transfer where data packets with higher priority
are given transmission preference.
ì In the Advanced Settings – Internet menu, select the entry QoS.
ì Activate Differentiated services, i.e. the prioritisation of certain services for data
transfer between your network and the Internet.
ì In the field next to Upstream rate, enter the value for your DSL connection. The
value is determined in the contract with your Internet provider
You can determ ine via Priority which data packets are to be given preferential transmission. With the aid of PHB (Per Hop Behaviours) a decision is also made about whether
data packets are to be forwarded immediately before all others (EF, Expedited Forward-
ing), guaranteed and without data loss (AF, Assured Forwarding) or normally (BE, Best
Effort). If your application already supports QoS your application will determine the priority automatically, and this will be noted by your device for forwarding. In addition,
your device recognises certain Predefined applications and gives each data packet the
relevant priority. You can also determine which proportion of the bandwidth for your
Internet connection is to be made available for a certain class as Allocated bandwidth.
ì Select the Allocated bandwidth for the Predefined applications and for the line
(all other applications).
ì Click on OK to save and apply the changes.
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Configuring the Advanced Settings
LAN configuration
You can use the LAN configuration to define an IP address for the Gigaset SE551 WLAN
dsl/cable and configure the DHCP server.
ì Select Advanced Settings – Local Network.
Defining the private IP address for the Gigaset SE551 WLAN dsl/cable
You can change the device's IP address in this screen. The preset IP address is
192.168.2.1. This is the Private IP address of the Gigaset SE551 WLAN dsl/cable. This is
the address under which the device can be reached on the local network. It can be freely
assigned from the block of available addresses. The IP address under which the
Gigaset SE551 WLAN dsl/cable can be reached from outside is assigned by the Internet
Service Provider.
ì If you want to assign the Gigaset SE551 WLAN dsl/cable a different IP address, enter
it in the fields next to IP address.
ì Select a number from the Subnet mask list.
We recommend using an address from a block that is reserved for private use.
This address block is 192.168.1.1 – 192.168.255.254.
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Configuring the Advanced Settings
Please remember:
New settings can only be made after rebooting the Gigaset SE551 WLAN dsl/cable.
If necessary, reconfigure the IP address on your PC (including one that is statically
assigned) so that it matches the new configuration.
Configuring the DHCP server
The Gigaset SE551 WLAN dsl/cable has a DHCP Server for which the factory setting is
active. As a result, the IP addresses of the PCs are automatically assigned by the
Gigaset SE551 WLAN dsl/cable.
Please remember:
u If the DHCP server for the Gigaset SE551 WLAN dsl/cable is activated, you can con-
figure the network setting on the PC so that the option Obtain an IP address
automatically is set. To find out how to do this, please read the section
"Configuring the local network" on page 23.
u If you deactivate the DHCP server, you will have to assign a static IP address for
the PCs using the network settings.
ì To activate the DHCP server, select On.
ì If the DHCP server is active, you can define a Lease time. The Lease time determines
the period for which the PCs keep the IP address assigned to them without changing
them.
Please remember:
If you select the Never expires option, the IP addresses are never changed.
You must select this option if you want to make NAT or firewall settings using the
IP addresses of the PCs, or else you must assign these PCs static IP addresses.
ì Define the range of IP addresses which the Gigaset SE551 WLAN dsl/cable should
use to automatically assign IP addresses to PCs. Define the First issued IP address
and the Last issued IP address.
ì You can define the name of a domain (Windows workgroup) in the Domain name
field.
Assigning static IP addresses to individual PCs
Even if you have activated the DHCP server you can still assign individual PCs a static
IP address (e.g. if you are setting up these PCs for NAT functions).
ì Enter the MAC address and the name of the PC in the Device name field.
ì Enter the IP address you wish to assign to the PC in the field below.
ì Click on the Add button to add the entry to the list.
ì Click on the Delete button to delete the entry from the list.
ì Apply the settings by clicking OK.
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Configuring the Advanced Settings
Configuring wireless connections
If PCs are communicating wirelessly via the Gigaset SE551 WLAN dsl/cable, you should
also take steps to enhance the security of your wireless network. You make this configuration via the Advanced Settings – Wireless Network menu. Here you can
u activate the Gigaset SE551 WLAN dsl/cable's wireless module (see below),
u set the channel and SSID (see page 98),
u set Encryption for wireless transmissions (see page 101), and
u restrict access to the Gigaset SE551 WLAN dsl/cable's LAN (see page 101),
u configure the repeater function on the Gigaset SE551 WLAN dsl/cable.
ì In the Advanced Settings menu, select Wireless Network.
ì Select the On option for Wireless Network (default setting).
Devices can only log in wirelessly if the Gigaset SE551 WLAN dsl/cable's wireless
module is activated.
You can now make the settings for your wireless network.
Channel
This function is only shown in the window if the Super G transmission mode is deactivated (see page 100).
The set radio channel is used by all clients in your network for wireless data transfer.
You can choose between various channels, depending on your current location.
ì Select Automatic so that the best channel for transmitting the data is used automat-
ically.
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