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71
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 config-
uration 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 71),
u
set
Encryption
for wireless transmissions (see page 74), and
u
restrict access to the Gigaset SE551 WLAN dsl/cable's LAN (see page 74),
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 deacti-
vated (see page 73).
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.
Page 72 / 148
72
Configuring the Advanced 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 (see below).
Enter a character string of your choice. The SSID is case sensitive. It can be up to
32 alphanumerical characters long.
SSID broadcast
If this option is enabled (default setting), 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 eavesdroppers could
use the SSID to gain access to your network.
If you deactivate
SSID broadcast
, your Gigaset SE551 WLAN dsl/cable's SSID will not be
displayed. This increases the protection against unauthorised access to your wireless
network. However, you must make a note of the SSID. You will need this to log on your
PC.
ì
Select the
Off
option to deactivate
SSID broadcast
.
Transmission mode
This function is only shown in the window if the Super G transmission mode is deacti-
vated (see page 73).
The standard IEEE 802.11g permits data transfer up to 54 Mbit/s, IEEE 802.11b up
to 11 Mbit/s. For the best possible data transfer rates in your network select
IEEE 802.11g only
. To operate clients with older wireless network adapters in your
network, select
IEEE 802.11b/g (mixed)
.
ì
Select the required transmission mode for your wireless network.
Sending power
ì
Select the required sending power for your device.
We recommend that you select a sending power with a range to suit the spatial envi-
ronment of your local network. A much greater range makes it easier to eavesdrop
on your wireless data transmission.
Please remember:
The connection to the wireless network adapters will be interrupted until you enter
the new SSID on them as well.
Page 73 / 148
73
Configuring the Advanced Settings
Super G (108 Mbit/s)
With the aid of channel bundling, the
Super G
transmission mode enables wireless data
transfer up to 108 Mbps. The channel for wireless data transfer cannot be changed. You
can only use Super G if this function is supported by at least one client in your wireless
network. For the best possible data transfer rates, all clients in your LAN should support
Super G.
ì
Select the mode for using
Super G (108 Mbit/s)
for your wireless network to incre-
ase the data transmission speed. You have a choice of two modes.
Static
: Wireless transmission is at a rate of just 108 Mbps. Clients that do not
support this speed cannot connect to Access Point.
Dynamic
: If you select this transmission mode, the router accepts subscribers
that communicate at different transfer rates and adjusts to the slowest client in
the network.
ì
If you do not wish to use
Super G (108 Mbit/s)
, select
Disabled
in the selection
menu.
XR (extended range)
Activating XR enables data transfer even in the peripheral areas of your wireless net-
work, albeit at very low data transfer rates. Conversion to XR mode occurs automatically
when the signal is weak enough and if the partner station is also XR capable.
ì
Activate or deactivate
XR
for your wireless network to increase the range.
ì
Click on
OK
to apply the settings.
Please remember:
If you activate Super G as the transmission mode, but it is not supported by all compo-
nents in your wireless network, then for technical reasons the transfer rate in the net-
work may be significantly lower than the possible maximum of 108 Mbit/s.
Page 74 / 148
74
Configuring the Advanced Settings
Setting wireless security
If you are sending data over wireless channels, we recommend that you activate encryp-
tion (
WEP
or
WPA
) on your wireless network components. WPA offers greater security
than WEP. We therefore recommend that you choose WPA encryption if it is supported
by all components in your wireless network.
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 is based on AES.
WPA also supports the use of an authentication server.
ì
In the
Wireless Network
menu, select
Encryption
.
The following security mechanisms are currently available:
u
WPA2-PSK and WPA2-PSK / WPA-PSK (see page 75)
u
WAP2 and WPA2 / WPA with authentication server (see page 76)
u
WEP encryption (Wired Equivalent Privacy) (see page 77)
Page 75 / 148
75
Configuring the Advanced Settings
WPA2-PSK and WPA2-PSK / WPA-PSK
WPA with Pre-shared key (WPA-PSK)
WPA-PSK
is a special WPA mode that provides encryption protection for users at home
and in small companies without a company authentication server. Encryption keys
are automatically generated with the Pre-shared key, and automatically changed
(rekeying) and authenticated between the devices after a certain period of time (
Rekey
Interval
).
Which standard of encryption you can choose depends on the components in your wire-
less network. Every PC (network adapter) that requires access to a wireless network pro-
tected 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. If all components sup-
port WPA2, select option
WPA2-PSK
. If you are using network adapters that only sup-
port WPA, select the option
WPA2-PSK / WPA-PSK
. The entries described below are the
same for both options.
ì
Select the required option in the
Security
field.
ì
Enter a key in the
Pre-shared key
field (up to 32 alphanumerical characters) and
confirm it by entering it again.
ì
Apply the settings by clicking
OK
.

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