14
15
8.2.1 Creating a new profi le
You need the following information to create a profi le
(Profi le):
•
SSID
(network ID): This is the name of the required network.
•
Encryption Type:
Encryption used in the target network
•
(Network Type)
: (type of network): Infrastructure or ad-hoc
Open the Wireless Utility. Using the Network overview
(Site survey
) tab, you can select the required network
and then open the dialog box using the
ADD PROFILE
button, or open the Profi le tab and start the dialog box
by clicking the
ADD button
.
First enter a name for your profi le
(Profi le name).
Under SSID, select the network you want to connect to
from the list of available networks.
To reduce the energy consumption, you can run the
device in
Power saving mode
. In this mode, certain
functions are deactivated or run at a lower setting if
they are not fully used. Select CAM (
Constantly Awake
Mode)
, if you want to run the stick at full power all
the time.
This device allows you to set up two different network types. Select
Infrastructure
under Network type, if
you want to connect to a router or access point. The settings for
TX Power, RTS Threshold
and
Fragment
Threshold
can be left at the default settings.
If you want to connect to another WLAN client device without a router or access point,
select
802.11 Ad-hoc.
The settings for
TX Power, Channel, RTS Threshold
and
Fragment Threshold
can be left at the
default settings.
8.2.2 Setting the wireless LAN encryption
First, it is important to understand a range of terms. The next section will explain the main terms
used here:
Authentication:
Authentication is a process in which the identity, e.g. of a person is determined based on a
certain characteristic. This can be done by fi ngerprint, password or any other proof of authorisation.
Encryption:
Encryption is a process in which a plain text is transformed into a coded text via an encryption
process (algorithm). One or more codes can be used for this.
It must also be mentioned that each individual encryption process offers one or more authentication
options.
Now switch to the
Advanced
tab.
Wireless mode allows you to set the standard to be used. This depends on the other devices used in your
network. You can choose either
802.11 B only
mode (11 Mbps): Then this standard only is used; or
802.11 B/G
mixed
mode up to 54 Mbps): Both standards are then supported; If you are not sure which of the standards
your devices support, you should use the mixed mode
(802.11 B/G mixed mode)
. Make all other settings as
shown in the image below.
Click
Apply
to confi rm your entries.
This device can be used with the following encryption
types:
64 and 128 bit WEP encryption
WPA Encryption
Note!!! Encryption is deactivated by default.
However, for security reasons, we recommend
that you always use encryption.
8.2.2.1 WEP encryption
Wired Equivalent Privacy
(WEP)
is a standard encryption algorithm for WLAN. It both controls the access to
the network and guarantees the integrity of the data. This method is considered vulnerable due to a range of
weaknesses.
If you want to use WEP encryption, select the following
settings:
Two options are available for the
Authentication type
under WEP.
Select
Open
if all clients are to be enabled for WLAN.
Now there is virtually no other authentication.
Select
Shared
if you want to use authentication with the
challenge response process. A shared code is used for
authentication in this method. All WLAN users must know this code.
All other selection options under
Authentication type
are meaningless under WEP.
