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Configuration and Management
40
1/1551-CRH 102 168 Uen Rev A
2008-12-16
3.6
Wireless LAN
A Wireless LAN (WLAN) is a local network that communicates through
wireless connections.
The Ericsson W3x can be used as a WLAN Access Point (AP), connecting
to wireless PCs according to the IEEE standard 802.11b/g, providing
Internet and LAN access.
The WLAN settings are displayed on the
Wireless LAN
page.
Figure 35 - Wireless LAN page
3.6.1
Enable WLAN
To enable the wireless LAN on the Ericsson W3x select the “Enable WLAN”
check box and click the
Apply
button to save the setting. To ensure the
security of your Wireless LAN, you are recommended to change the default
settings for network name (SSID) and authentication.
Note:
The wireless setup typically requires configuration of both the
Ericsson W3x and the wireless client(s). For more information on
configuration of wireless clients, see section 6.2 –
Wireless LAN
Settings
.
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Configuration and Management
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2008-12-16
41
3.6.2
Region
Wireless devices are thoroughly regulated and the countries have slightly
different regulations. Therefore, the geographical region where the Ericsson
W3x is used must be stated to make sure the correct radio frequencies are
used when transmitting data.
Select the geographical region in which you reside from the “Region” drop-
down list and click
Apply
to save the setting.
3.6.3
Radio Channel
The radio channel must be in accordance with the previous set region and
only channels that are allowed in the configured region are available in the
“Radio channel” drop-down list.
By selecting “Auto” (recommended) the radio in the Ericsson W3x will
automatically scan each valid channel and choose the one with least
interference.
Select either “Auto” or a specific channel number from the “Radio channel”
drop-down list and click
Apply
to save the setting.
3.6.4
Transmit Power [dBm]
To avoid interference with other wireless networks, the transmit power level
can be reduced. If you want to change the transmit power level according
to your specific conditions, select an appropriate level from the “Transmit
power [dBm]” drop-down list and click
Apply
to save the setting.
3.6.5
Data Rate
According to wireless LAN standards and the IEEE 802.11 protocols there
are different data rates available for different modes. From the “Data rate”
drop down list there are the following modes available:
•
B-Mode Only (supporting IEEE 802.11b clients with a maximum data
rate of 11 Mbit/s)
•
G-Mode Only (supporting IEEE 802.11g clients with a maximum data
rate of 54 Mbit/s)
•
B/G-Mixed Mode (supporting both IEEE 802.11b/g clients as described
above)
•
Legacy B-Mode (supporting IEEE 82.11b legacy clients).
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Configuration and Management
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2008-12-16
Select an appropriate data rate from the “Data rate” drop down list
according to what is supported by the wireless clients that should connect.
Click
Apply
to save the setting.
3.6.6
Scan for Wireless Networks
If you want information about adjacent wireless networks, click the
Scan for wireless networks
button. A scanning is started and when
finished, information about wireless networks is presented as in the
example below:
Figure 36 - Scan for wireless networks page
The list displays the following information about wireless networks that are
nearby:
Table 15 - Scan for wireless networks description
Text
Description
MAC Address
The MAC address of the access point for
the WLAN.
Network Name
The network name (SSID) of the WLAN.
Channel
The radio channel used by the WLAN.
RSSI
The RSSI (Received Signal Strength
Indicator) which is a link indication
expressed in dBm to show the signal
strength of the wireless network.
This information can be of help when deciding which channel to use. Click
Back
to return to the
Wireless LAN
page where you can select a desired
channel.
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Configuration and Management
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2008-12-16
43
3.6.7
Network Name (SSID)
All clients on the WLAN share a common network name or SSID (Service
Set IDentifier). This name is required to establish connection between the
Ericsson W3x and other wireless client(s) and to distinguish the WLAN from
any other(s) that may be in use nearby.
Only clients configured with the same network name (SSID) as the one set
on the Ericsson W3x can obtain access to it.
Note:
It is recommended to change the preconfigured network name
“MBR” to something else that makes it harder for unauthorized
persons to access your wireless network.
The following settings concerning the network name are displayed and can
be modified on the
Wireless LAN
page:
Table 16 - Network name description
Text
Description
Network name (SSID):
The network name (SSID) of the wireless
network.
The network name is case-sensitive
(distinguish between uppercase and
lowercase letters) and can be changed to
any combination of numbers (0-9), letters
(a-z), and hyphens (-) with a maximum
length of 32 characters.
Enable SSID broadcast
If “Enable SSID broadcast” is checked, the
SSID is continuously broadcasted and any
nearby wireless client(s) will find it when
scanning the air.
If the checkbox is cleared, the SSID will be
hidden and in this case the name has to be
provided manually to every wireless client
where access is to be granted.
To change settings for the Network Name (SSID), type the new values in
the corresponding fields and click
Apply
to save the settings.
3.6.8
WLAN Security
All communication on the wireless network can be protected using different
authentication and encryption methods. The most common is to encrypt the
WLAN using an encryption method such as WEP, WPA and WPA2.
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Configuration and Management
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2008-12-16
Which authentication and encryption method that should be used depends
on what is supported by the connected wireless client(s).
Note:
Each wireless client must be configured to use exactly the same
security mode and key/passphrase as the Ericsson W3x or they will
not be able to connect.
In the “Authentication” drop-down list you select which type of
authentication/encryption you want to use for your WLAN. The following
subsections describe the authentication methods supported by the Ericsson
W3x.
3.6.8.1
Open (No security)
If you select “Open” as authentication method no client configuration is
needed but be aware of that the WLAN will now be open without any kind
of security. For example, it is now possible for anyone with a computer and
a wireless interface card to connect to the Ericsson W3x at any time and
having access to both your home network and Internet connection.
3.6.8.2
WEP and WEP Encryption Key (Low security)
WEP
(Wired Equivalent Privacy) is considered to be a low security option.
The data is encrypted into blocks of either 64 bits length or 128 bits length.
WEP encrypted data can only be sent and received by users with access to
a private encryption key. This means that each client on your wireless
network has to be manually configured with exactly the same key as the
one entered in the Ericsson W3x in order to allow encrypted data
transmissions.
•
WEP-64 bit data encryption requires a key including 10 characters.
Only hexadecimal numbers 0-9 and letters a-f (uppercase or
lowercase) are allowed.
•
WEP-128 bit data encryption requires a key including 26 characters.
Only hexadecimal numbers 0-9 and letters a-f (uppercase or
lowercase) are allowed.
Enter an encryption key in the “Passphrase / Key” field and click
Apply
to
save the settings.
3.6.8.3
WPA/WPA2 and Passphrase (High security)
WPA
(Wi-Fi Protected Access) and its successor
WPA2
are the most
reliable security options. WPA encryption uses the TKIP (Temporal Key

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