Ericsson W20
Fixed Wireless Terminal for WCDMA/HSDPA
Mobile Networks
User's Guide
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.
Contents
1
Introduction
1
1
1
2
1.1
1.2
1.2.1
Structure of this Guide
Product Overview
Indicators and Connectors
2
Configuration and Management
Accessing Internal Web Pages
Overview Page
Changing Password
Alarms
5
5
2.1
2.2
6
2.2.1
2.2.2
2.2.3
2.3
6
7
Network Information
Configuration Wizard
Internet Access
Wireless LAN Access
Internet
8
9
2.3.1
2.3.2
2.4
9
11
18
19
20
22
23
23
24
24
25
26
27
27
29
29
31
2.4.1
2.4.2
2.5
Traffic Statistics
Authentication
LAN
2.5.1
2.5.2
2.5.3
2.6
Connected Devices
Traffic Statistics
Port Status
Wireless LAN
2.6.1
2.6.2
2.6.3
2.6.4
2.6.5
2.7
Radio Channels
Network Name
Connected Devices
Security
Whitelist
DHCP Server
2.8
NAT
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Contents
2.8.1
2.8.2
2.8.3
2.9
UPnP IGD
31
32
32
34
35
35
36
37
37
37
39
Application Level Gateways
Port Forwarding
File and Printer Sharing
File Sharing
2.9.1
2.9.2
2.10
Printer Sharing
System
2.10.1
2.10.2
2.10.3
2.11
Configuration Backup and Restore
Reboot
Software Upgrade
Event Log
3
PC Configuration
41
41
41
43
43
43
43
44
44
45
45
46
47
3.1
IP Settings
3.1.1
3.1.2
3.2
Obtaining IP Settings Automatically
Configuring Static IP Address
Wireless LAN Settings
3.2.1
3.2.2
3.2.3
3.3
Siting the Wireless PC
Installing the Wireless LAN Interface
Configuring PC Access to the Ericsson W20
File and Printer Sharing Settings
Accessing a Shared Device
3.3.1
3.3.2
3.3.3
3.3.4
Checking Workgroup Settings
Setting Up a Mapping to a Storage Device
Setting Up Connection to a Network Printer
4
Trouble-Shooting
49
50
50
51
51
52
52
4.1
4.2
4.3
4.4
4.5
4.6
No Access to Ericsson W20 Web Pages
No Internet Access
Slow or Intermittent Internet Connection
No Access to a Certain Internet Application
No LAN Connection
No Wireless LAN Connection
iv
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Contents
4.7
4.8
Slow or Intermittent Wireless LAN Connection
No Access to Shared Files or Network Printer
53
54
Glossary 55
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Introduction
1
Introduction
This chapter describes the structure of this guide and gives a brief product
overview.
1.1
Structure of this Guide
This User’s Guide contains information that is needed to configure and
manage the Ericsson W20 Fixed Wireless Terminal (FWT). The following
chapters are included:
•
•
Chapter 1 – “Introduction” – provides information about this guide and
gives a brief product overview.
Chapter 2 – “Configuration and Management” – provides detailed
information about how to perform configuration and management of the
Ericsson W20.
•
•
Chapter 3 – “PC Configuration” – gives instructions for configuring your
computers to work with the Ericsson W20.
Chapter 4 – “Trouble-Shooting” – tells you how to solve a number of
issues that could occur during installation, configuration, and use of the
Ericsson W20.
•
The Glossary includes abbreviations and explanations to technical
terms used in this guide.
1.2
Product Overview
The Ericsson W20 FWT is an advanced small office and home router with
wireless Internet access. The key benefits of the product are:
•
•
Wireless Broadband Services at Reliable High Speed
The Ericsson W20 uses WCDMA/HSDPA radio access to provide high-
speed data capabilities to the local network.
Advanced Networking
The Ericsson W20 supports an advanced local network setup. It
provides IP routing, Ethernet switching, DHCP service, and NAT.
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Introduction
•
•
File and Printer Sharing
Network storage and printing are supported through USB connection of
up to two mass storage devices and one printer at the same time.
Local Wireless Access with High-level Security
The Ericsson W20 is a WLAN access point for the wireless local
network including WEP, WPA, and WPA2 with pre-shared keys for
WLAN security.
UMTS/GSM
WLAN
Ethernet
USB
Figure 1
Example of Ericsson W20 Setup
For more information about the Ericsson W20, see www.ericsson.com/fwt
1.2.1
Indicators and Connectors
The Ericsson W20 is equipped with five status indicators located on the
front panel of the unit, see Figure 1. A general description of each indicator
is provided in the table below (from top to bottom):
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Introduction
Table 1
Front Panel Indicators
Text
Status
Green
Unlit
Description
Power
Power is on.
Power is off.
Mobile Network
Green
Yellow
Flashing
Unlit
The UMTS network is available.
The GSM network is available.
Searching for a connection.
No connection to the mobile network.
Connection to Internet established.
No Internet connection.
Internet
Green
Unlit
Wireless LAN
Alarm
Green
The wireless LAN is active
The wireless LAN is inactive.
Red
Unlit
Error. Various error conditions are
specified on the Overview web page.
No error.
The Ethernet LAN connectors (LAN1- LAN4) on the connectors’ panel
have two built-in indicators each.
The left indicator shows the speed of data traffic between the Ericsson W20
and the connected client. If the speed is 100 Mbps, the indicator is green.
When the indicator is unlit, the speed is 10 Mbps.
The indicator to the right is green when a LAN connection is established
and flashes to show data traffic activity.
The connectors on the Ericsson W20 are positioned as shown in the
following illustration:
Figure 2
Connectors panel
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Introduction
A description of each connector is provided in the table below (from left to
right):
Table 2
Connectors
Label
Description
10-28 VDC
Reset
Power input for connecting the power supply adapter.
Button used to restore the Ericsson W20 configuration to
factory default settings. The following procedure resets all
configurable values back to factory default, including the
Ericsson W20 login user name and password.
1. Disconnect the power cable from the Ericsson
W20.
2. Press and hold the Reset button with the tip of a
pen and then reconnect the power cable. Keep the
button pressed for at least 20 seconds.
3. The Ericsson W20 restarts and comes online with
the factory default settings.
USB
USB connectors, for connecting the Ericsson W20 to USB
devices.
LAN 1 - 4
Ethernet LAN connectors (RJ45), for connecting the
Ericsson W20 to client PCs or an Ethernet switch/hub.
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Configuration and Management
2
Configuration and Management
Follow the instructions in the Quick Installation Guide to install the
Ericsson W20. When the installation is finished, the Ericsson W20 internal
web pages are available for configuration and status control.
This chapter provides detailed information about configuration and
management of the Ericsson W20.
2.1
Accessing Internal Web Pages
field. The Ericsson W20 User Login page is displayed.
Note: If you change the Ericsson W20 internal IP address, you have to
use the new address to access the web pages.
Figure 3
User Login page
The default login user name and password both are “user”. You are
Password”.
Type userin both the User name and Password fields. Click Log In .
The Overview page is displayed:
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Configuration and Management
Figure 4
Overview page
The left-hand menu includes configuration topics described one by one in
the following sections.
Apart from the links menu to the left, each web page includes a Logout link
to make it possible to log out whenever it is desired.
2.2
Overview Page
The Overview page includes the possibility to change password, the
Wizard”, alarm information, and basic network information.
2.2.1
Changing Password
The default Ericsson W20 login password is “user”. You are recommended
to change the password.
1. Click Change Password on the Overview page. The Change
Password page is displayed:
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Configuration and Management
Figure 5
Change Password page
2. Type the old password in the Current Password field. If it is the first
time you change password, the old password is user.
3. Type the new password in the New Password and Retype New
Password fields.
Note: The password is case-sensitive (distinguish between
uppercase and lowercase letters) and can include up to eight
characters (letters and/or numbers).
4. Click OK .
2.2.2
Alarms
Alarms are generated when it is impossible to send or receive data. If an
alarm occurs, the Alarm indicator on the Ericsson W20 front panel is red
and one of the following messages is displayed in the Alarms section on
the Overview page:
No alarms reported
The Ericsson W20 has not detected any
alarm.
No SIM card detected
There is no SIM card available, or the
SIM card is incorrectly inserted into the
Ericsson W20 unit.
No PIN code entered
SIM card locked
A PIN code is required to establish an
Internet connection.
The SIM card is blocked. The PUK is
required to unblock the SIM card.
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Configuration and Management
SIM card permanently
locked
The SIM card cannot be unblocked. A
new SIM card is required.
Alarm detection not
working
The Ericsson W20 alarm detection
function is not working.
Unknown alarm
The Ericsson W20 cannot identify the
alarm.
Shooting”.
2.2.3
Network Information
The Network Information section on the Overview page includes a
selection of the Internet and LAN settings also displayed on the
Internet.and LAN pages respectively.
The Internet information includes connection status and basic settings.
Details about the following items are displayed:
IP Address
Connection
The IP address automatically assigned to the
Ericsson W20 by the mobile network.
The radio access technique currently used to enable
Internet access. It can be either
UMTS or
GSM
Service provider The name of the mobile network operator.
Network
registration
The current mobile network registration mode, which
can be one of the following:
Not registered, not searching
Registered, home network
Searching
Registration denied
Unknown
Roaming
The LAN (Local Area Network) section includes information about the
following item:
W20 IP Address
The local identity of the Ericsson W20.
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Configuration and Management
2.3
Configuration Wizard
The Configuration Wizard guides you step by step through the basic setup
of the mobile network connection and optionally for the wireless LAN
access point.
Click Configuration Wizard on the Overview page to start the wizard. The
first page of the wizard; WAN Access: SIM Authentication is displayed:
Figure 6
WAN Access: SIM Authentication page
2.3.1
Internet Access
The first part of the Configuration Wizard includes Internet authentication.
Depending on the current Internet service setup, the requests on
authentication may differ. The service provider provides the required
authentication details.
Note: Only enter details that you have received from your service
provider and leave other fields empty.
SIM Authentication
The service provider provides you with a SIM card. This SIM card contains
information about the subscription and is associated with a PIN (Personal
Identification Number) and a PUK (Personal Unblock Key) code.
Type the PIN in the PIN field on the first page of the Configuration Wizard,
see Figure 5. Thereafter, you can select the Remember my PIN check
box. This makes SIM authentication automatic and you will not have to
enter the PIN in case of a system restart. Click Next to proceed.
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Configuration and Management
If three attempts have been made with the wrong PIN, the SIM card is
blocked. The PUK is required to unblock the card. Click the Unlock SIM
link. The Unlock SIM page is displayed:
Figure 7
Unlock SIM page
Type the PUK in the PUK field and type a new PIN in the New PIN and
Retype new PIN fields. Click OK . The Overview page is displayed.
Note: If ten attempts have been made with the wrong PUK, the SIM card
is permanently blocked. A new SIM card is required.
APN
An APN (Access Point Name) is a reference to the Internet access point on
the service provider’s network. It usually has the format
<name.service_provider.country>. Different APNs for the GSM (2G) and
UMTS (3G) networks may be required.
Figure 8
WAN Access: APN page
Type the APN(s) in the APN (2G) and APN (3G) fields on the WAN
Access: APN page. Click Next to proceed.
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Configuration and Management
PPP User Authentication
The PPP (Point-to-Point Protocol) Internet mode may require individual
user authentication.
Figure 9
WAN Access: PPP User Authentication page
Fill in the PPP user name and PPP password fields on the WAN Access:
PPP User Authentication page. Click Next to proceed.
2.3.2
Wireless LAN Access
The second part of the Configuration Wizard includes configuration of the
Wireless LAN (WLAN). A Wireless LAN is a local network that
communicates through wireless connections.
Note: The wireless setup typically requires configuration of both the
Ericsson W20 and the wireless clients. For more information about
Access Point
The Ericsson W20 is a WLAN Access Point (AP) for the local network
providing the wireless client(s) with Internet and LAN access.
Figure 10
Wireless LAN: WLAN Access Point page
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Configuration and Management
To enable connection of one or more wireless devices to the Ericsson W20,
select the Enable WLAN check box on the Wireless LAN: WLAN Access
Point page and click Next to proceed.
If you are not going to set up any wireless LAN, just click Next on the
Wireless LAN: WLAN Access Point page. The last page of the wizard,
where you can review and confirm your settings, is displayed:
Figure 11
Confirm page
Check the information on this page and click Finish to confirm the
settings.
Region
To make sure the Ericsson W20 operates on correct radio frequencies
according to local regulations, you have to state in which region you reside.
After this you cannot select any radio channel that would be against the
regulations.
Figure 12
Wireless LAN: Region page
Select your country domain from the Region list on the Wireless LAN:
Region page and click Next to proceed.
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Configuration and Management
Channel Selection
The maximum number of regulatory channels to use for wireless
communication is 13. Available channels depend on local regulations. You
can select one of the available channels yourself, or let the Ericsson W20
automatically select a channel.
Figure 13
Wireless LAN: Radio Channel page
Select either Auto or a channel number from the Radio Frequency
Channel list on the Wireless LAN: Radio Frequency Channel page. Click
Next to proceed.
Network Name
All devices on the local wireless network share a common Service Set
IDentifier (SSID) or network name. This name is required to establish
connection between the Ericsson W20 and the wireless client(s), and to
distinguish the wireless network from any other(s) that may be in use
nearby. It ensures that only devices configured with the same network
name as the one set on the Ericsson W20 can obtain access to it.
Figure 14
Wireless LAN: Network Name page
The default network name can be changed to any combination of numbers,
letters, or both with a maximum length of 127 characters. Type the new
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Configuration and Management
name in the Network name (SSID) field on the Wireless LAN: Network
Name page.
If the SSID broadcast option is enabled, your local wireless device(s) will
find the network name when scanning the air. If the option is disabled, the
network name is hidden and has to be manually provided to the wireless
device(s). To disable network name broadcast, clear the Enable SSID
broadcast check box on the Wireless LAN: Network Name page.
Click Next to proceed.
Authentication
The wireless data transmissions can be protected from potential intruders
and eavesdroppers through standard authentication and encryption
methods. Authentication is used to restrict access to the wireless network.
Encryption is the translation of data into a form that cannot be easily
understood by unauthorized users. The encrypted data can only be sent
and received by users with access to a private encryption key.
WEP (Wired Equivalent Privacy) is considered to be a low security option.
WEP encrypted data is translated into blocks of either 64 bits length or 128
bits length.
WPA (Wi-Fi Protected Access) and its successor WPA2 are the most
reliable security options. WPA encryption uses the Temporal Key Integrity
Protocol (TKIP) while WPA2 encryption follows the Advanced Encryption
Standard (AES). AES offers a higher level of security and is approved for
sensitive corporate and government data transmission.
Figure 15
Wireless LAN: Authentication page
Note: Make sure that the operating system(s) and wireless LAN
interface(s) of the wireless client(s) support the selected authentication
method.
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Configuration and Management
Select one of the authentication methods from the Authentication list on
the Wireless LAN: Authentication page. Click Next to proceed.
If you select Open, the last page of the wizard, where you can review and
confirm your settings, is displayed. Check the information on this page and
click Finish to confirm the settings.
Figure 16
Confirm page
If you select WEP (64 bit), the Wireless LAN: WEP-64 page is displayed:
Figure 17
Wireless LAN: WEP-64 page
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If you select WEP (128 bit), the Wireless LAN: WEP-128 page is
displayed:
Figure 18
Wireless LAN: WEP-128 page
If you select WPA, the Wireless LAN: WPA is displayed:
Figure 19
Wireless LAN: WPA page
If you select WPA2, the Wireless LAN: WPA2 is displayed:
Figure 20
Wireless LAN: WPA2 page
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WEP Encryption Key
The WEP encrypted data can only be sent and received by users with
access to a private encryption key. This means that each device on your
wireless network has to be configured with the same key as the Ericsson
W20 in order to allow encrypted data transmissions.
A 64-bit data encryption key includes 10 characters. A 128-bit data
encryption key includes 26 characters. Only the hexadecimal numbers 0 to
9 and letters A to F are allowed.
Fill in the Pass phrase / Key field on the Wireless LAN: WEP-64 page or
the Wireless LAN: WEP-128 page. Click Next to proceed.
WPA/WPA2 Pass Phrase
WPA and WPA2 authentication and encryption require a pass phrase. Each
device on your wireless network has to be configured with the same pass
phrase as the Ericsson W20. The encryption master key is derived from the
pass phrase and the network name (SSID) of the device.
On the Wireless LAN: WPA or Wireless LAN: WPA2 page, type a unique
pass phrase in the Pass phrase / Key field. A WPA or WPA2 pass phrase
is case sensitive and consists of between 8 and 63 characters. It is
recommended that the pass phrase contains at least 20 characters. Click
Next to proceed.
Confirming Settings
On the last page of the Configuration Wizard, the Internet and Wireless
LAN settings are displayed:
Figure 21
Confirm page
Check the information on this page and click Finish to confirm the
settings.
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Configuration and Management
2.4
Internet
The Ericsson W20 connects to the Internet through mobile (radio)
communication using the UMTS (3G) network. If the UMTS network is not
available, the GSM (2G) network is used as fall-back. Connection details
are displayed on the Internet page:
Figure 22
Internet page
The following information is displayed on the Internet page:
The mobile network (UMTS or GSM) signal quality
available at the Ericsson W20 location. This signal
quality affects the performance of the unit. If two or
more bars are displayed, the connection is usually
acceptable.
Link Status
The Internet access status, either
Up or
Down
If the link is up, connection is established.
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Mode
Connection
The protocol used for the Internet data traffic:
PPP (Point-to-Point Protocol)
The radio access technique currently used to enable
Internet access. It can be either
UMTS or
GSM
Service provider The name of the mobile network operator.
Network
registration
The current mobile network registration mode, which
can be one of the following:
Not registered, not searching
Registered, home network
Searching
Registration denied
Unknown
Roaming
IP Address
The IP address automatically assigned to the
Ericsson W20 by the mobile network.
DNS 1
DNS 2
The IP address to the DNS server.
The IP address to the secondary DNS server.
2.4.1
Traffic Statistics
The Traffic Statistics section includes information about the following
items:
Transmitted
packets
The total size (and number) of transmitted data
packets.
Received
packets
The total size (and number) of received data
packets.
Error
The number of invalid data packets.
Overruns
The number of packet loss due to too many
incoming data packets.
Dropped
The number of dropped data packets.
Note: The data size and packet counters have the upper limits of 4 GiB
and 232 packets (more than 4 billion packets). When these limits
have been reached, the counters wrap around to zero.
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Configuration and Management
2.4.2
Authentication
Internet access requires authentication of the Ericsson W20. Depending on
the current Internet service setup, the authentication requests may differ.
Your service provider provides the Ericsson W20 SIM card and details
needed for authentication.
The following authentication details may be required:
PIN
The Personal Identification Number, which is used for
SIM authentication.
Remember my
PIN
If enabled, SIM authentication is automatic and you
will not have to enter the PIN in case of a system
restart.
APN (3G)
The 3G Access Point Name, which is a reference to
the UMTS Internet access point on the service
provider’s network. The APN usually has the format
<name.service_provider.country>.
APN (2G)
The 2G Access Point Name, which is a reference to
the GPRS/EDGE Internet access point on the service
provider’s network. The APN usually has the format
<name.service_provider.country>.
PPP user name
PPP password
The Point-to-Point Protocol Internet mode user name,
which is used for user authentication.
The Point-to-Point Protocol Internet mode password,
which is used for user authentication.
If you have not used the configuration wizard for configuration of Internet
access, or authentication is required because of a reset to factory default
configuration, fill in the PIN, APN (2G), APN (3G), PPP user name, and
PPP password fields. For automatic SIM authentication in case of a
system restart, select the Remember my PIN check box. Click Apply .
Note: Only enter details that you have received from your service
provider and leave other fields empty.
Unblocking SIM Card
If three attempts have been made with the wrong PIN, the SIM card is
blocked. The PUK is required to unblock the card. Click the Unlock SIM link
that will be displayed beside the PIN field. The Unlock SIM page is
displayed:
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Figure 23
Unlock SIM page
Type the PUK in the PUK field and type a new PIN in the New PIN and
Retype new PIN fields. Click OK . The Overview page is displayed.
Note: If ten attempts have been made with the wrong PUK, the SIM card
is permanently blocked. A new SIM card is required.
Changing Authentication Details
If SIM authentication is verified, you cannot edit the PIN field. To change
PIN, click Change PIN. The Change PIN page is displayed:
Figure 24
Change PIN page
Type the current and new PIN in the corresponding fields and click OK.
If you want to change the APN, PPP user name, or PPP password, type the
new value in the corresponding field on the Internet page and click Apply .
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Configuration and Management
2.5
LAN
The LAN (Local Area Network) configuration includes the details of the
connections between the Ericsson W20 and other local devices.
Figure 25
LAN page
The following information and configuration options are displayed on top of
the LAN page:
W20 IP address The LAN address of the Ericsson W20.
Subnet mask
The subnet mask, which determines the range of IP
addresses on the subnet.
If you want to change the W20 IP address, make sure that the new address
is not included in the DHCP server IP address range, displayed on the
DHCP Server page. The default range is 192.168.1.2 – 192.168.1.100.
DHCP server IP address range.
Before you change the W20 IP address or subnet mask you also have to
make sure that the DHCP server IP address range is included in the new
subnet. If you want to change the subnet not to include the DHCP IP
address range, you first have to disable the DHCP server. See section 2.7
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Configuration and Management
To change the W20 IP address or subnet mask, type the new value in the
corresponding field and click Apply to save the settings.
Note: If you change the LAN IP address while connected to the Ericsson
W20 web pages through a web browser, you will be disconnected.
You have to redirect the web browser to the new address in order
to confirm the new settings. Type the new LAN IP address in the
Address (URL) field and press the ꢀ key.
2.5.1
Connected Devices
The Connected Devices table includes information about all connected
LAN devices.
MAC Address
The MAC (Media Access Control) address of the
device.
IP address
Name
The IP address of the device.
The unique name of the device.
Connection
The type of connection, which is either
Ethernet or
USB
2.5.2
Traffic Statistics
The following information is displayed in the Traffic Statistics section on
the LAN page:
Transmitted
packets
The total size (and number) of transmitted data
packets on the LAN.
Received
packets
The total size (and number) of received data packets
on the LAN.
Error
The number of invalid data packets.
Overruns
The number of packet loss due to too many
incoming data packets.
Dropped
The number of dropped data packets.
Note: The data size and packet counters have the upper limits of 4 GiB
and 232 packets (more than 4 billion packets). When these limits
have been reached, the counters wrap around to zero.
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Configuration and Management
2.5.3
Port Status
The Port Status table shows the connection(s) to the LAN (1 - 4) ports on
the Ericsson W20 unit. The status for each port is Upor Down.
2.6
Wireless LAN
A Wireless LAN (WLAN) is a local network that communicates through
wireless connections. The Ericsson W20 is a WLAN Access Point (AP) for
the local network providing wireless client(s) with Internet and LAN access.
The WLAN settings are displayed on the Wireless LAN web page. To
ensure the security of your wireless LAN, you are recommended to change
the default settings.
Figure 26
Wireless LAN page
To enable the Ericsson W20 AP features providing the local wireless
device(s) with Internet and LAN access, select the Enable WLAN check
box on the Wireless LAN page and click Apply .
Note: The wireless setup typically requires configuration of both the
Ericsson W20 and the wireless clients. For more information on
Settings”.
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Configuration and Management
2.6.1
Radio Channels
There are 13 regulatory radio channels predefined for the transportation of
data in a wireless LAN. Local regulations determine which of these
channels that can be used by the Ericsson W20.
The following settings concerning radio frequencies are displayed and
possible to modify on the Wireless LAN page:
Region
The country domain, which is one of the
following:
Europe
US
Canada
South Africa
Australia
New Zeeland
Malaysia
Singapore
Radio Frequency
The radio channel for wireless LAN
communication, either
Auto (default) or
1-13
Transmit Power [dbm]
The radio transmission level that
determines the signal range:
0-20
Default is 20.
To make sure the Ericsson W20 operates on correct radio frequencies
according to local regulations, you have to state in which region you reside.
After this you cannot select any radio channel which would be against the
local regulations. Select your country domain from the Region list on the
Wireless LAN page.
Use the Radio channel list to select which one of the allowed radio
channels to use, or let the Ericsson W20 automatically select a channel
(Auto). If you want information about adjacent wireless networks to make
your choice, click Scan for wireless networks. The Scan for wireless
networks page is displayed:
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Configuration and Management
Figure 27
Scan for wireless networks page
When the scanning is finished, the following information about identified
wireless networks is displayed:
MAC Address
The MAC address of the access point of
the wireless network.
Network Name
Channel
The name of the wireless network.
The radio channel used by the wireless
network.
RSSI
The radio signal strength.
Use this information to decide which channel to use for the Ericsson W20
wireless network. Click Back to return to the Wireless LAN page where
you can select this channel.
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] list.
Click Apply to save the settings.
2.6.2
Network Name
All devices on the local wireless network share a common Service Set
IDentifier (SSID) or network name. This name is required to establish
connection between the Ericsson W20 and other wireless device(s) and to
distinguish the wireless network from any other(s) that may be in use
nearby. It ensures that only devices configured with the same network
name as the one set on the Ericsson W20 can obtain access to it.
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The following settings concerning the network name are displayed and can
be modified on the Wireless LAN page:
Network name (SSID)
Enable SSID broadcast
The name of the wireless network.
If this check box is selected the network
name will be broadcasted, otherwise
hidden.
The default network name can be changed to any combination of numbers,
letters, or both, with a maximum length of 127 characters. Type the new
name in the Network name (SSID) field.
If the SSID broadcast option is enabled, the local wireless client(s) will find
the network name when scanning the air. If the option is disabled, the name
is hidden and has to be manually provided to the wireless client(s). To
disable network name broadcasting, clear the Enable SSID broadcast
check box on the Wireless LAN page.
Click Apply to save the settings.
2.6.3
2.6.4
Connected Devices
The Connected Devices list includes the MAC (Media Access Control)
addresses of all wireless devices currently connected to the Ericsson W20.
Security
The wireless data transmissions can be protected from potential intruders
and eavesdroppers through standard authentication and encryption
methods. Authentication is used to restrict access to the wireless network.
Encryption is the translation of data into a form that cannot be easily
understood by unauthorized users. The encrypted data can only be sent
and received by users with access to a private encryption key.
The following authentication methods are supported by the Ericsson W20:
WEP
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.
The encrypted data can only be sent and received by users with access to
a private encryption key. Each device on your wireless network has to be
manually configured with the same key as the Ericsson W20 in order to
allow encrypted data transmissions.
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Configuration and Management
WPA and WPA2
WPA (Wi-Fi Protected Access) and its successor WPA2 are considered to
be the most reliable security options. WPA encryption uses the Temporal
Key Integrity Protocol (TKIP) while WPA2 encryption follows the Advanced
Encryption Standard (AES). AES offers a higher level of security and is
approved for sensitive corporate and government data transmission.
WPA and WPA2 authentication require a pass phrase. Each device on your
wireless network has to be manually configured with the same pass phrase
as the Ericsson W20. The encryption master key is derived from the pass
phrase and the network name (SSID) of the device.
The following wireless LAN authentication details are displayed and can be
modified on the Wireless LAN page:
Authentication
The authentication method, which can be one of the
following:
Open
WEP 64-bit
WEP 128-bit
WPA
WPA2
Pass phrase /
Key
The WEP 64-bit data encryption or 128-bit data
encryption key or the WPA or WPA2 authentication
and encryption pass phrase.
Enable whitelist
If this check box is selected, only wireless devices
added to the whitelist are allowed to access the
Ericsson W20.
Select an authentication method from the Authentication list.
Note: Make sure that the operating system(s) and wireless LAN
interface(s) of the wireless client(s) support the selected
authentication method.
If you have selected WEP 64-bit or WEP 128-bit, type the key for
encryption in the Pass phrase / Key field. A 64-bit data encryption key
includes 10 characters. A 128-bit data encryption key includes 26
characters. Only the hexadecimal numbers 0 to 9 and letters A to F are
allowed.
If you have selected WPA or WPA2, type the pass phrase for
authentication and encryption in the Pass phrase / Key field. A WPA or
WPA2 pass phrase is case sensitive and consists of between 8 and 63
characters. For security reasons, you are recommended to use a pass
phrase that contains at least 20 characters.
Click Apply to save the settings.
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Configuration and Management
2.6.5
Whitelist
The Whitelist is a list of up to 20 WLAN client MAC (Media Access Control)
addresses that are allowed to access the Ericsson W20. A MAC address is
the unique hardware number of a device. It has the form of
xx:xx:xx:xx:xx:xx, where x is either a letter A – F or a number.
To find out about the MAC address of a PC using Microsoft Windows, open
a command prompt and type ipconfig /all. A list of system properties
is displayed. The MAC address is found on the Physical Addressrow.
To add a client to the whitelist, type the MAC address of the client in the
Whitelist field on the Wireless LAN page and click Add .
Click Apply to save the settings.
2.7
DHCP Server
The Ericsson W20 incorporates a DHCP (Dynamic Host Configuration
Protocol) server that assigns dynamic IP addresses to local clients. The IP
addresses are collected from a predefined range of available addresses.
The default address range is suitable for most local networks.
The DHCP server uses the concept of a "lease”, that is the amount of time
that a given IP address will be valid for a specific device. If the lease time
expires and the device is still connected, the lease is automatically
renewed.
Figure 28
DHCP Server page
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Configuration and Management
The following configuration options are displayed on the DHCP server
page:
Enable DHCP server
If this check box is selected the DHCP server is
working, otherwise it is turned off.
IP address range
from
The first IP address in a range of IP addresses
that can be assigned to the LAN clients.
IP address range to
The last IP address in a range of IP addresses
that can be assigned to the LAN clients.
Max Lease Time [sec] The IP address lease time, specified in
seconds:
min: 60
max: 2147483647
To disable the DHCP server. Clear the Enable DHCP server check box on
the DHCP Server page.
If you for some reason want to configure your connected devices with static
addresses, make sure that the addresses are outside the DHCP server IP
address range.
To change the range of available addresses, change the IP addresses in
the IP address range from and IP address range to fields.
Note: The DHCP server IP address range has to be on the same subnet
as the Ericsson W20 LAN IP address. The IP address range must
not include the Ericsson W20 IP address. For instructions on how
In the Maximum lease time [sec] field, enter the time (in seconds) you
want the LAN device to lease the IP address before it is reassigned.
Click Apply to save the settings.
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2.8
NAT
The Network Address Translation (NAT) service provides the LAN devices
with Internet access. All communication from the LAN to the Internet
appears to come from the IP address of the Ericsson W20. In this way,
details about the local devices remain private and it is not possible to
access a local device directly from the Internet.
Figure 29
NAT page
2.8.1
UPnP IGD
The Ericsson W20 supports the Universal Plug and Play (UPnP) Internet
Gateway Device (IGD) standard. UPnP IGD is used to provide automatic
port forwarding allowing communication between certain Internet
applications and the local network. When UPnP IGD is enabled, programs
like MSN Messenger® and most network enabled games are allowed to
pass the NAT service.
To disable UPnP IGD, clear the Enable UPnP check box on the NAT page
and click Apply .
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Configuration and Management
2.8.2
Application Level Gateways
From a security perspective, certain Internet applications, for example FTP
applications that open additional ports upon transfer, are especially
problematic to handle. An Application Level Gateway (ALG) provides a
translation and transportation service for such a specific application.
Incoming data packets are checked against existing NAT and packet
filtering rules, IP addresses are evaluated and a detailed packet analysis is
performed. If necessary, the contents of a packet are modified and if a
secondary port is required, the ALG will open one. The Ericsson W20
includes ALG support for the following applications:
Application
Protocol
Port
number
File Transfer Protocol (FTP)
TCP
UDP
21
69
Trivial File Transfer Protocol (TFTP)
The ALG for each application does not require additional configuration. The
supported ALGs can be enabled and disabled individually. To disable an
ALG, clear the corresponding check box on the NAT page and click
Apply .
2.8.3
Port Forwarding
Port forwarding is used to allow incoming access to a specific local network
device, for example an internal web server.
Note: Port forwarding requires a public IP address of the Ericsson W20.
The Ericsson W20 IP address is displayed on the Internet page. If
the IP address begins with 10, 172, or 192, it is probably private.
In this case, no incoming access from the Internet is allowed. For
more information on public and private IP addresses, contact your
service provider.
Adding an Instance
To add a new port forwarding instance, click Add instance in the Port
Forwarding section on the NAT page. The Add Port Forwarding page is
displayed:
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Figure 30
Add Port Forwarding page
Fill in the Protocol, NAT Port, Server Name/IP, and Server Port fields
and click Apply .
Example
In the following example, port forwarding is used to allow incoming access
to an internal web server.
Protocol: TCP
NAT Port: 80
Server Name/IP: 192.168.1.101
Server Port: 8080
When one or more port forwarding instances are added, the following
details are displayed for each instance in the Port Forwarding table on the
NAT page:
NAT Port
The NAT port number that the data traffic is allowed
to be transported on.
Server Name/IP
Server Port
The name or IP address of the destination unit.
The destination port, which identifies the type of
service that is directed, for example web service on
port 8080.
Prot
The data traffic protocol; UDPor TCP.
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Editing an Instance
To edit a port forwarding instance, click the corresponding Edit link in the
Port Forwarding section on the NAT page. The Edit Port Forwarding
Instance page is displayed.
Change one or more value(s) in the Protocol, NAT Port, Server Name/IP,
or Server Port field(s) and click Apply .
2.9
File and Printer Sharing
The Ericsson W20 supports local network storage and printing. It is
possible to have two USB storage devices or a USB storage device and a
USB printer connected to the Ericsson W20 at the same time. When an
external hub is connected, the Ericsson W20 supports connection of up to
two storage devices and one printer at the same time.
When a storage device or network printer is connected to Ericsson W20,
information about the device is displayed on the File & Printer Sharing
page. If this page is open when you connect the device, a refresh of the
page is required for the new information to be displayed.
Figure 31
File & Printer Sharing page
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To access a shared file or printer from a PC on your LAN, you may need
the following information, displayed on the File & Printer Sharing page.
Host name
Workgroup
The name of the Ericsson W20 on the local network.
The common name of all devices sharing the same
resources on the local network.
To change the host name or workgroup, type the new name in the
corresponding field and click Apply .
For information about setting up connections from a PC to shared files or a
2.9.1
File Sharing
The Ericsson W20 supports USB connection of up to two mass storage
devices at the same time. The included files are shared with all devices on
the LAN. All local users have full access to the shared files.
Note: If the mass storage device contains more than one partition, only
the first partition is shared.
Information about file sharing device(s) is displayed on the File & Printer
Sharing page:
Share name
The name of the shared resource on your local
network.
Storage device
The manufacturer name of the device.
Connection speed
The speed of the data transmissions between the
storage device and the Ericsson W20:
High Speed (480 Mbit/s),
Full Speed (12 Mbit/s)or
Low Speed (1,5 Mbit/s)
To give a file sharing device a specific name, type this name in the
corresponding Share name field and click Apply.
2.9.2
Printer Sharing
The Ericsson W20 supports sharing of a network printer, connected to one
of the USB ports. Depending on the printer type, the installation may
require some specific drivers, provided by the printer manufacturer, for
installation on the client PCs.
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Information about the shared printer is displayed on the File & Printer
Sharing page:
Share name
The name of the shared printer on your local
network.
Printer
The manufacturer name of the printer.
Connection speed
The speed of the data transmissions between the
printer and the Ericsson W20:
High Speed (480 Mbit/s),
Full Speed (12 Mbit/s)or
Low Speed (1,5 Mbit/s)
To give your network printer a specific name, type this name in the Share
name field and click Apply.
2.10
System
The System page includes system information and management functions,
used to update and restore the Ericsson W20.
Figure 32
System page
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2.10.1
Configuration Backup and Restore
The Ericsson W20 configuration can be restored to factory default settings,
or to any previous configuration locally stored in a backup file.
Backing Up a Configuration
It is possible to back up a configuration that you want to save for future
purposes.
To back up a configuration, click Backup in the Configuration Backup
and Restore section on the System page. Follow the instructions on the
screen to select a location for the configuration file.
Note: Do not modify a configuration file. If you do, the file will be invalid
and not accepted if you want to make a restore.
Restoring a Configuration
If you wish to revert to previous settings, you can perform a configuration
restore from a previously stored backup file.
Note: Do not modify a configuration file. If you do, the file will be invalid
and not accepted if you want to make a restore.
To restore from a configuration file, click Browse… in the Configuration
Backup and Restore section on the System page. Follow the instructions
on the screen to locate the configuration file. The selected file will be
displayed in the text field in the Configuration Backup and Restore
section.
Click Restore to restore the configuration from the backup file. A
confirmation message is displayed.
2.10.2
2.10.3
Reboot
To restart the Ericsson W20, click Reboot in the Reboot section on the
System page. The Ericsson W20 is restarted. The restart does not result in
any configuration changes.
Software Upgrade
The current Ericsson W20 software version is displayed on top of the
System page. New software versions can be either automatically or
manually installed.
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Automatic Software Installation
Automatic software upgrade is supported through remote management.
Your service provider regularly upgrades the Ericsson W20 with the most
recent software version. To enable automatic software upgrade, select the
Enable automatic software upgrade check box and choose an
appropriate interval from the Select an update interval [days] list. Click
Apply to save the settings.
Installing new Software from File
If your service provider provides a new software version for your Ericsson
W20, you are recommended to upgrade the Ericsson W20.
To check for new software versions, click Check in the Software Upgrade
section on the System page.
To install new software on the Ericsson W20, make sure that the new
software file is available on your PC. Then click Browse… in the Software
Upgrade section. Follow the instructions on the screen to locate the
configuration file. The selected file will be displayed in the Software image
field.
Click Upgrade to upgrade the Ericsson W20 with the new software
version. The following page is displayed:
Figure 33
Software Upgrade page – initiating upgrade
The information on this page is updated every tenth second. When the
upgrade is finished, the following page is displayed:
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Configuration and Management
Figure 34
Software Upgrade page – upgrade complete
2.11
Event Log
On the Event Log page, a list of the Ericsson W20 logs is displayed:
Figure 35
Event Log page
If persistent logging is enabled, the logs will remain after a system restart.
To enable this feature, select the Persistent logging check box on the
Event Log page and click Apply.
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Each row in the log list displays the time and date when an alarm occurred,
the type of alarm, and a brief statement indicating its cause.
To view only a selection of the logs in the list, select a filter level from the
Display list. Available log levels are Alarm and All. The Alarm log level
corresponds with the Alarm indicator on the Ericsson W20 unit and the
information in the Alarms section on the Overview page.
Click Refresh to update the list with new information. The most recent
errors are listed at the bottom of the list.
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PC Configuration
3
PC Configuration
The connection to the Ericsson W20 may require specific PC configuration.
This chapter includes instructions on how to configure Internet Protocol (IP)
settings, establish wireless connection(s) with the Ericsson W20 and
access a shared network storage device or printer. The descriptions include
examples from Windows XP and 2000. If you use another operating
system, refer to the system documentation or online help.
3.1
IP Settings
The Ericsson W20 automatically assigns the IP settings to your PC(s). You
only need to configure the PC(s) according to the instructions below to
accept the information. In some cases however, you may want to configure
If you have connected your LAN PC(s) to the Ericsson W20, follow the
instructions that correspond to the operating system installed on your PC in
the following sub-sections.
If you want to allow wireless PCs to access your device, you also have to
3.1.1
Obtaining IP Settings Automatically
Follow the instructions that correspond to the operating system installed on
your PC.
Windows XP
1
In the Windows task bar, click the Start button, and then click Control
Panel. The Control Panel window is displayed.
2
If you are using Category View, Click Network and Internet
Connections and then Network Connections. If you are using
Classic View, double-click Network Connections. The Network
Connections window is displayed.
3
Double-click the icon corresponding to your network interface card
(NIC). This icon is usually labeled Local Area Connection. The Local
Area Connection Properties window is displayed with a list of
currently installed network items.
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4
5
Ensure that the Internet Protocol TCP/IP check box is selected and
click Properties .
In the Internet Protocol (TCP/IP) Properties window, select Obtain
an IP address automatically and Obtain DNS server address
automatically.
6
Click OK twice to confirm your changes and close the windows, and
then close the Control Panel window.
Windows 2000
First, check for the IP protocol and, if necessary, install it:
1. In the Windows task bar, click the Start button, point to Settings, and
then click Control Panel.
2. Double-click the Network and Dial-up Connections icon.
3. In the Network and Dial-up Connections window, right-click the
Local Area Connection icon, and then click Properties.
The Local Area Connection Properties dialog box is displayed with a
list of currently installed network components. If the list includes
Internet Protocol (TCP/IP), then the protocol has already been
enabled. Skip to step 11.
4. If Internet Protocol (TCP/IP) does not display as an installed
component, click Install… .
5. In the Select Network Component Type dialog box, select Protocol,
and then click Add… .
6. Select Internet Protocol (TCP/IP) in the Network Protocols list, and
then click OK .
You may be prompted to install files from your Windows 2000
installation CD or other media. Follow the instructions to install the files.
7. If prompted, click OK to restart your computer with the new settings.
Next, configure the PCs to accept IP information assigned by the Ericsson
W20:
8. In the Windows task bar, click the Start button, point to Settings, and
then click Control Panel.
9. Double-click the Network and Dial-up Connections icon.
10. In the Network and Dial-up Connections window, right-click the
Local Area Connection icon, and then click Properties.
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11. In the Local Area Connection Properties dialog box, select Internet
protocol (TCP/IP), and then click Properties .
12. In the Internet Protocol (TCP/IP) Properties dialog box, click the
Obtain an IP address automatically option button. Also click the Obtain
DNS server address automatically option button.
13. Click OK twice to confirm your changes and close the windows, and
then close the Control Panel window.
3.1.2
Configuring Static IP Address
Most users need not to configure static IP settings. Automatic configuration
is appropriate in most cases.
For information about static IP configuration, see the operating system
documentation or online help.
Note: Make sure that the IP address of the client is on the same subnet
as the Ericsson W20. The IP address range of the Ericsson W20
subnet is displayed on the DHCP Server page.
3.2
Wireless LAN Settings
This section provides a general description of what is required to make your
wireless devices work with the Ericsson W20.
Before you follow the instructions below, you need to configure the
3.2.1
Siting the Wireless PC
The coverage of the wireless LAN depends on a number of factors,
including the distance between the Ericsson W20 and the PC and the
occurrence of obstacles, such as walls and electrical equipment.
Guidelines on siting the hardware components of your wireless network are
provided by your wireless LAN interface provider.
3.2.2
Installing the Wireless LAN Interface
Each PC on your wireless LAN must be fitted with a wireless LAN interface,
such as a wireless network card. You also have to install the corresponding
driver files for your particular wireless LAN interface on your PC. The driver
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PC Configuration
files and instructions on how to install them are provided together with the
interface.
3.2.3
Configuring PC Access to the Ericsson W20
The configuration steps below will vary depending on both the operating
system and the wireless LAN interface installed on the PC. These steps
provide a basic outline. For specific instructions, refer to the documentation
provided with your wireless LAN interface.
Configure the following wireless parameters on each of the wireless PCs:
−
Set the wireless LAN interface to use infrastructure mode. This
configures the PCs to access each other and the Internet through
the Ericsson W20.
−
Configure the network name (SSID) and channel to match the
network name and channel configured on the Ericsson W20. This
information can usually be obtained through WLAN scanning. The
network name is case sensitive.
−
−
−
If you are using Wired Equivalent Privacy (WEP) security,
configure the same encryption key that is configured on the
Ericsson W20.
If you are using Wi-Fi Protected Access (WPA or WPA2) security,
configure the same pass phrase that is configured on the Ericsson
W20. The pass phrase is case sensitive.
Configure the IP settings using the procedure described in section
3.1 – “Configuring Internet Settings”.
3.3
File and Printer Sharing Settings
When a USB mass storage device or network printer is connected to the
Ericsson W20, information about the device is displayed on the File &
Printer Sharing page.
In some cases, you have to make sure that your PC belongs to the same
If you want to configure a network drive mapping to a shared device, follow
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PC Configuration
3.3.1
Accessing a Shared Device
To access a shared device from a PC using Windows 2000 or XP, follow
the steps below:
1. In the Windows task bar, click the Start button, and then click Run….
2. Type \\<host name>\<share Name> in the Open field. The Host
name and Share name are displayed on the Ericsson W20 File &
Printer Sharing page. Click OK .
3. The shared resource is displayed. Double-click on the shared file to
open it.
3.3.2
Checking Workgroup Settings
The following sections include instructions on how to check the workgroup
settings on a PC using Windows XP or 2000.
Windows XP
Follow the steps below to check the workgroup settings on a PC using
Windows XP:
1. In the Windows task bar, click the Start button, and then click Control
Panel. The Control Panel window is displayed.
2. If you are using Category View, click Performance and Maintenance
and then See basic information about your computer. If you are
using Classic View, double-click System. The System Properties
window is displayed.
3. Click the Computer Name tab.
4. Click Change…. The Computer Name Changes window is displayed.
5. Make sure that the Workgroup name is exactly the same as on the
Ericsson W20 File & Printer Sharing page. If not, you have to change
the workgroup either on the PC or on the Ericsson W20.
6. If you decide to change the workgroup on the PC, type the correct
name in the Workgroup field and click OK . If you do not want to
make any changes, click Cancel. The Computer Name Changes
window is closed.
7. If you have changed the workgroup settings, follow the instructions on
the screen to restart the PC.
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PC Configuration
Windows 2000
Follow the steps below to check the workgroup settings on a PC using
Windows 2000:
1. In the Windows task bar, click the Start button, and then click Settings
and Control Panel. The Control Panel window is displayed.
2. Double-click the System icon. The System Properties window is
displayed.
3. On the Network Identification tab, click Properties. The Identification
Changes window is displayed.
4. Make sure that Workgroup is selected in the Member of section and
that the name of the workgroup is exactly the same as on the Ericsson
W20 File & Printer Sharing page. If not, select the Workgroup option
and type the name in the field. If there is already a workgroup name,
although not the same as on the Ericsson W20, you have to change
the workgroup either on the PC or on the Ericsson W20.
5. If you have made any changes, click OK . Otherwise, click Cancel.
The Identification Changes window is closed.
6. If you have changed the workgroup settings, follow the instructions on
the screen to restart the PC.
3.3.3
Setting Up a Mapping to a Storage Device
The following sections include instructions on how to configure a mapping
to a mass storage from a PC using Windows XP or 2000.
Windows XP
Follow the steps below to set up a connection to a shared storage device
from a PC using Windows XP:
1. In the Windows task bar, click the Start button, and then click My
Computer. The My Computer window is displayed.
2. From the Tools menu, select Map Network Drive…. The My Network
Drive window is displayed.
3. Select a drive that is not already used from the Drive list.
4. In the Folder field, type \\<host_name>\<share_name>. You find
the host name and share name on the File & Printer Sharing page.
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PC Configuration
5. Click Finish. The Map Network Drive window is closed. The device is
displayed in the My Computer window as a new partition.
Windows 2000
Follow the steps below to configure a connection to a shared storage
device from a PC using Windows 2000:
1. Right-click the My Computer icon and select Map Network Drive...
The Map Network Drive window is displayed.
2. Select a drive that is not already used from the Drive list.
3. In the Folder field, type \\<host_name>\<share_name>. You find
the host name and share name on the File & Printer Sharing page.
4. Click Finish. The Map Network Drive window is closed. The device is
displayed in the My Computer window as a new partition.
3.3.4
Setting Up Connection to a Network Printer
Follow the steps below to set up a set up a mapping to a network printer
from a PC using Windows XP or 2000:
Windows XP
Follow the steps below to set up a connection to a network printer on a PC
using Windows XP:
1. In the Windows task bar, click the Start button, and then click Control
Panel. The Control Panel window is displayed.
2. If you are using Category View, click Printers and Other Hardware
and then Printers and Faxes. If you are using Classic View, double-
click Printers and Faxes. The Printers and Faxes window is
displayed.
3. From the File menu, select Add Printer. The Add Printer Wizard is
started.
4. Follow the instructions in the wizard to install the printer.
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PC Configuration
Windows 2000
Follow the steps below to set up a connection to a network printer on a PC
using Windows 2000:
1. From the Start menu, select Settings and then Control Panel. The
Control Panel window is displayed.
2. Double-click the Printers icon. The Printers Window is displayed.
3. Double-click the Add Printer icon. The Add Printer Wizard is started.
4. Follow the instructions in the wizard to install the printer.
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Trouble-Shooting
4
Trouble-Shooting
This chapter describes how to solve a number of issues that could occur
during installation, configuration, and use of the Ericsson W20. More
Before you try any of the methods described in this chapter, make sure that
the connected cables are securely inserted and that the Power indicator on
the Ericsson W20 is green.
If none of the suggested methods solve your problem, you are
recommended to:
1. Restart the Ericsson W20.
2. Reset the Ericsson W20 to factory default configuration.
3. Contact your service provider.
To restart the Ericsson W20, click the Reboot button on the System web
page. If you cannot access the Ericsson W20 web pages, remove the
power cable to disconnect the Ericsson W20 from power and wait a
moment before reconnecting the cable.
To reset the settings to factory default, disconnect the Ericsson W20 from
power by removing the power cable. Then use a tip of a pen to press the
Reset button while reconnecting the power cable. Keep the Reset button
pressed for at least 20 seconds.
The factory default configuration contains the original settings of your
Ericsson W20. When you install your Ericsson W20 and access the web
pages for the first time, the configuration file contains the factory default
configuration.
Note: A reset to factory default configuration cannot be undone. If you
reset the Ericsson W20 to default configuration, all your previous
configuration changes are replaced. If you have previously
changed the user name and password, the Login page will be
displayed. You have to login to the web pages with the default user
name and password (userin both fields).
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Trouble-Shooting
4.1
No Access to Ericsson W20 Web Pages
If you cannot access the Ericsson W20 internal web pages, take the
following actions to identify and solve the problem:
•
•
•
Check that the PC is configured to obtain an IP address automatically
using DHCP. If not, change the PC TCP/IP settings. For instructions,
of your operating system.
If the W20 IP address has been changed and you do not know the
current IP address, use the Reset button to reset the Ericsson W20 to
factory default configuration (see above). This will set the IP address to
Make sure you are using the correct login details. If the default
password has been changed and you do not know the current
password, use the Reset button to reset the Ericsson W20 to factory
default configuration (see above). This will reset the login details to
default values. The default user name and password both are “user”.
•
•
If the PC is connected to the Ericsson W20 via an Ethernet cable,
check that at least one of the corresponding LAN connector indicators
is illuminated. If not, make sure that the cable is properly connected or
try with another Ethernet cable.
If you are using a wireless PC, make sure that the Wireless LAN
indicator on the front panel of the Ericsson W20 unit is illuminated. If
not, connect an Ethernet cable between the PC and the Ericsson W20
to establish a connection. The wired connection is required for the
initial wireless LAN configuration of the Ericsson W20.
•
If the PC is assigned a static IP address, make sure that the DNS
server settings of the PC correspond with the Ericsson W20
configuration. For information, see the operating system documentation
or online help.
4.2
No Internet Access
If you cannot access the Internet from any of your local devices, take the
following actions to identify and solve the problem:
•
•
Check that the Ethernet cable is properly connected and that at least
one of the corresponding LAN connector indicators is illuminated.
Make sure that the GSM/UMTS antenna is properly connected and
tightened to the Ericsson W20 antenna connector.
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Trouble-Shooting
•
•
Check the Alarm indicator on the front panel of the Ericsson W20 unit.
If it is red, see the information in the Alarms section on the Overview
page.
On the Internet page, check that the PIN field is filled in and that there
is no error message beside this field. If there is a message saying No
SIM, verify that a valid SIM card is correctly inserted and then retype
the PIN code on the Internet page. If the message says Set PIN, only
retype the PIN code. If the SIM blockedmessage is displayed, the
PUK is required to unblock the card.
•
•
On the Internet page, check that the APN is correctly entered in the
APN (3G) and APN (2G) fields.
On the Internet page, verify that the mobile network signal quality
indicator displays at least one bar. If not, move the Ericsson W20 or
attach an external antenna (indoor window or outdoor roof mounted).
External antennas are available as accessories to the Ericsson W20.
4.3
Slow or Intermittent Internet Connection
If your Internet connection is unacceptable slow or regularly dropping, take
the following actions to identify and solve the problem:
•
On the Internet page, verify that the Connection is UMTS. If not, move
the Ericsson W20 or attach an external antenna (indoor window or
outdoor roof mounted). External antennas are available as accessories
to the Ericsson W20.
•
On the Internet page, verify that the mobile network signal quality
indicator displays at least two bars. If not, try to move the Ericsson W20
or attach an external antenna.
4.4
No Access to a Certain Internet Application
If you cannot access a certain Internet application or specific type of data,
take the following actions to identify and solve the problem:
•
•
If the application uses FTP or TFTP, check the NAT page to make sure
that the ALG supporting the Internet application is enabled.
If the application requires UPnP IDG, check that UPnP is enabled on
the NAT page.
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Trouble-Shooting
4.5
No LAN Connection
If you cannot access the local network from a PC that is connected to one
of the LAN ports on the Ericsson W20, or to an Ethernet switch or hub that
is connected to the Ericsson W20, take the following actions to identify and
solve the problem:
•
•
Check that the corresponding LAN connector indicator is green. If not,
check that the Ethernet cable(s) is properly connected.
Check that the PC is configured to obtain IP address automatically
using DHCP. If not, change the PC TCP/IP settings. For instructions,
manual of your operating system.
4.6
No Wireless LAN Connection
If you cannot access the local network from a wireless device, take the
following actions to identify and solve the problem:
•
Check that the Wireless LAN indicator on front panel of the Ericsson
W20 unit is illuminated. If not, connect an Ethernet cable between the
PC and the Ericsson W20 to establish a connection. The wired
connection is required for the initial wireless LAN configuration of the
Ericsson W20.
•
•
•
Verify that the wireless LAN interface installed on the wireless client is
active.
Move the Ericsson W20 to another location. Make sure that the mobile
network signal is still acceptable before finalizing the installation.
Check that the Transmit power [dbm] on the Wireless LAN page is
configured in accordance with your requirements on wireless network
coverage. The maximum transmit power value is “20”.
•
•
Configure the Ericsson W20 wireless LAN authentication method to
Open. This will verify if the wireless LAN connection is working without
encryption. If so, the problem is related to the security settings. See the
information below to get help to identify the problem.
Verify that the operating system and wireless LAN interface of the client
supports the Ericsson W20 authentication and encryption method
(WEP 64-bit, WEP 128-bit, WPA, or WPA2). The Ericsson W20
security settings are displayed on the Wireless LAN web page. If the
security method is not supported, configure the Ericsson W20 to use
another method.
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Trouble-Shooting
•
Verify that the network name (SSID) on the Ericsson W20 and the
wireless client are the same. Note that the network name is case
sensitive.
•
•
If you are using WEP, make sure that the encryption key length (64-bit
or 128-bit) is the same on the Ericsson W20 and the wireless client.
If you are using WEP, make sure that the wireless client is configured
with the same encryption key as the Ericsson W20. Check that the
encryption key consists of hexadecimal characters only.
•
If you are using WPA or WPA2, make sure that the pass phrase is the
same on the Ericsson W20 and the wireless client. Note that the pass
phrase is case sensitive.
•
•
If Whitelist is enabled, make sure that the wireless client is included on
this list.
If the wireless client uses a static IP address, make sure that this IP
address is on the same subnet as the Ericsson W20. For instructions
on how to check the client’s IP address, see the operating system
documentation or online help. The W20 IP address and subnet mask is
displayed on the LAN page.
•
•
Make sure that your Ericsson W20 network does not use the same
radio channel as other wireless devices in the premises, for example
security systems. The radio channel is displayed on the Wireless LAN
page. To avoid interference, let the Ericsson W20 select a channel
automatically (Auto) or manually change the radio channel currently
used.
Keep the Ericsson W20 away from electrical devices that disturb the
radio signals, for example microwave ovens.
4.7
Slow or Intermittent Wireless LAN Connection
If your wireless connections to the local network are unacceptable slow or
regularly dropping, take the following actions to identify and solve the
problem:
•
•
Move the Ericsson W20 to another location. Make sure that the mobile
network signal is still acceptable before finalizing the installation.
Make sure that your Ericsson W20 network does not use the same
radio channel as other wireless devices in the premises, for example
security systems. The radio channel is displayed on the Wireless LAN
page. To avoid interference, let the Ericsson W20 select a channel
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Trouble-Shooting
automatically (Auto) or manually change the radio channel currently
used.
•
•
Keep the Ericsson W20 away from electrical devices that disturb the
radio frequency signals, for example microwave ovens.
Check that the Transmit Power [dbm] on the Wireless LAN page is
configured in accordance with your requirements on wireless network
coverage. The maximum (default) value is “20”.
4.8
No Access to Shared Files or Network Printer
If you cannot access a shared storage device or network printer that is
connected to one of the USB connectors of the Ericsson W20, take the
following action to identify and solve the problem:
•
•
Disconnect the USB device from the Ericsson W20, and then reconnect
it.
Make sure that the PC belongs to the same workgroup as the Ericsson
Printer Sharing web page.
•
•
If you have problems accessing a storage device, make sure that the
device is using the FAT file system. Note that only one partition is
available.
If you have problems accessing a network printer, make sure that any
printer specific drivers are installed on the PC.
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Glossary
Glossary
2G
Authentication
The second generation wireless
communications technology, introducing
digital voice encoding. Low speed data
services are supported.
The process to verify the identity of a user
requesting network access.
Broadcasting
To simultaneously send the same message to
multiple recipients.
3G
The third-generation wireless
communications technology. 3G includes
enhanced voice, data, and video capabilities,
improved availability, broad bandwith and
high speed.
CDMA
Code Division Multiple Access.
A general term describing mobile air interface
technologies based on “spread spectrum”
digital radio access methods, offering benefits
including increased capacity, quality and
security. CDMA is fundamental to 3G mobile
systems.
ALG
Application Layer Gateway.
An ALG provides a translation and
transportation service for an Internet
application. If necessary, the contents of a
data packet are modified and if a secondary
port is required, the ALG will open one.
Channel
A channel determines the radio frequency
used by an access point to pass data traffic to
wireless clients. Available channels depend
on region specific regulations.
AES
Advanced Encryption Standard.
An encryption method used by WPA2.
Compared with TKIP, AES offers a higher
level of security and is approved for sensitive
corporate and government data transmission.
DHCP
Dynamic Host Configuration Protocol.
A protocol used to provide a framework for
passing configuration information on a
TCP/IP network.
AP
DHCP server
Access point.
Dynamic Host Configuration Protocol server.
A configuration server, capable of configuring
network devices with a variety of information
required for their operation.
An Internet device that seamlessly connects
wired and wireless networks. Access points
attached to a wired network support the
creation of multiple radio cells that enable
roaming throughout a facility.
DNS
Domain Name System (or Service).
The way that Internet domain names are
located and translated into IP addresses.
APN
Access Point Name.
A reference to the Internet access point of an
Service provider.
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Glossary
EDGE
Gateway
Enhanced Data rates for Global Evolution.
A technology that gives GSM the capacity to
handle services for the third generation of
mobile telephony. EDGE provides three times
the data capacity of GPRS.
A network point that acts as an entrance to
another network.
GPRS
General Packet Radio Service.
A packet-based mobile communications
system building on GSM. Advantages over
standard GSM include higher data
transmission speeds, more efficient use of
radio resources and continuous connection to
the network to facilitate more advanced non-
voice services.
Encryption
The translation of data into a form that cannot
be easily understood by unauthorized users.
Data passing between an access point and
network clients can use encryption to protect
from interception and eavesdropping.
Encryption key
GSM
A sequence of characters used for data
encryption. The encrypted data can only be
sent and received by users with access to the
encryption key.
Global System for Mobile Communication.
The second generation mobile system
originally developed in Europe. GSM is
oriented to voice and circuit mode data.
Ethernet
Host
The most common LAN technology, used in
both wired and wireless networks. An
Ethernet LAN typically uses coaxial cables or
special grades of twisted pair wires.
A device (usually a computer) connected to a
network.
HSDPA
High Speed Downlink Packet Access.
The new standardized evolution of WCDMA
that will enable downlink speeds of up to 14
Mbps.
FAT
File Allocation Table.
A file system used for the Microsoft Windows
operating systems.
IGD
FTP
Internet Gateway Device.
See UPnP IGD.
File Transfer Protocol.
A protocol for exchanging files over the
Internet. FTP is most commonly used to
download and upload files from and to
servers.
IMEI
International Mobile Equipment Identity.
The IMEI number of a mobile device is a 15
digit unique code that is used to identify the
device on a network.
FWT
Fixed Wireless Terminal.
A terminal providing residential and small
office users with broadband services like
high-speed data, voice, and fax connectivity.
Internet access is provided through the
mobile communications network.
IP
Internet Protocol.
A part of a suite of protocols that effectively
defines the Internet as we know it. Specifies
addressing and control information for routing
data packets over networks.
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Glossary
IP address
Network mask
The address of a host on the Internet,
consisting of four numbers, each from 0 to
255, separated by periods, for example
192.168.1.1. An IP address consists of a
network ID that identifies the particular
network the host belongs to, and a host ID
uniquely identifying the host itself on that
network. A network mask is used to define
the network ID and the host ID.
A sequence of bits applied to an IP address
to select the network ID while ignoring the
host ID. Bits set to 1 mean “select this bit”
while bits set to 0 mean “ignore this bit”. For
example, if the network mask 255.255.255.0
is applied to the IP address 100.10.50.1, the
network ID is 100.10.50, and the host ID is 1.
See also subnet mask.
Packet
LAN
The units of data transmitted on a network.
Each packet contains a payload (the data),
plus overhead information such as where it
came from (source address) and where it will
go (destination address).
Local Area Network.
A computer network limited to the immediate
area, such as a home, office, or small
building.
Lease time
Pass Phrase
The amount of time that an dynamically
assigned IP address will be valid for a specific
device.
A secret password used for WPA and WPA2
wireless data encryption. The encryption is
based on a WPA master key that is derived
from the pass phrase and the network name
(SSID).
MAC address
Media Access Control address.
The permanent hardware address of a device
assigned by its manufacturer. MAC
addresses are expressed as six pairs of
hexadecimal characters (0-9 and A-F), with
each pair separated by colons. For example:
1a:2b:23:5b:66:9a
PC
Personal Computer.
A computer designed for use by one person
at a time.
PIN
Personal Identification Number.
A secret code used for individual access to
for example computer networks. Generally, a
PIN is made up of 4 to 10 digits.
Mass Storage
Various techniques and devices used to store
large amounts of data. An example of a mass
storage device is a hard disk.
PPP
NAT
Point-to-Point Protocol.
Network Address Translation.
A protocol for serial data transmission that is
used to carry IP (and other protocol) data
between the service provider and your
computer.
A service performed by many routers that
translates a network’s IP address into a
private IP address for each device on the
LAN. Only the router and the LAN know these
addresses; the outside world sees only the
public IP address when talking to a computer
on the LAN.
Private IP Address
A private IP Address is typically assigned to a
client on a LAN (Local Area Network) and is
not used outside the LAN. Private IP
addresses are typically used when multiple
computers share the same Internet
connection.
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Glossary
Protocol
SIM
A set of rules governing the transmission of
data. In order for a data transmission to work,
both ends of the connection have to follow the
rules of the protocol.
Subscriber Identity Module.
The “smart card” required by all mobile
customers to operate their phones. Carries
authentication, billing and information about
the individual subscriber, as well as address
book and other personalized information.
PSK
Pre-Shared Key.
An easy-to-set-up home mode for network
access allowing for manually entering of keys
and pass phrases.
SSID
Service Set Identifier.
A unique network name that differentiates
one wireless device from another. Wireless
PCs configured with the same SSID can
access the same network.
Public IP Address
A public IP address is a globally unique
number that identifies a device on the
Internet. Anyone on the Internet can connect
to the device using the public address.
Subnet
A portion of a network. The subnet is
distinguished from the larger network by a
subnet mask that selects some of the
computers of the network and excludes all
others. The subnet’s devices remain
physically connected to the rest of the
network, but they are treated as though they
were on a separate network.
PUK
Personal Unblocking Key.
A secret code made up of 8 to 10 digits. The
PUK is used to reativate a SIM card that has
been blocked.
Roaming
The movement between microcells in a radio
network. Roaming service is used to provide
network access independent of where the
user resides and what service provider that is
running the network.
Subnet mask
A mask that defines a subnet. See also
Network mask.
Switching
Routing data traffic by setting up temporary
connections between two or more network
points. This will take the data toward its
intended destination.
Routing
The forwarding of data between a local
network and the Internet on the most efficient
route, based on the data’s destination IP
address and current network conditions. A
device that performs routing is called a router.
TCP
Transmission Control Protocol.
See TCP/IP.
RSSI
Received Signal Strength Indicator.
The RSSI is an indicator of the strength of the
received radio signal.
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Glossary
TCP/IP
UPnP IGD
Transmission Control Protocol / Internet
Protocol.
UPnP Internet Gateway Device.
A standard used by UPnP aware clients, such
as MSN Messenger, to work properly from
behind a NAT.
The basic protocols used on the Internet.
TCP is responsible for dividing data up into
packets for delivery and reassembling them
at the destination. IP is responsible for
delivering the packets from source to
destination. When TCP and IP are bundled
with higher-level applications such as HTTP,
FTP, Telnet, and so on, TCP/IP refers to this
whole suite of protocols.
UMTS
Universal Mobile Telecommunications
Service.
A 3G wireless system that delivers high-
bandwidth data and voice services to mobile
users. UMTS has an air interface based on
WCDMA and a core network based on the
General Packet Radio Service (GPRS).
TFTP
Trivial File Transfer Protocol.
A TCP/IP protocol commonly used for
software downloads.
URL
Uniform Resource Locator.
The address of a resource on the Internet.
TKIP
USB
Temporal Key Integrity Protocol.
Universal Serial Bus.
An interface for connecting peripherals such
as storage devices and printers to a host.
A protocol used for WPA data encryption. It
ensures that a unique master key is
generated for each packet, supports message
integrity and sequencing rules, and supports
re-keying mechanisms. TKIP avoids the
problems of WEP static keys by dynamically
changing data encryption keys.
WAN
Wide Area Network.
A network of computers that covers a large
geographical distance. With respect to the
Ericsson W20, WAN refers to the Internet.
UDP
User Datagram Protocol.
WCDMA
Wideband CDMA.
A connection-less transport service that
dispenses with the reliability services
provided by TCP. UDP gives applications a
direct interface with IP and the ability to
address a particular application process
running on a host via a port number, without
setting up a connection session.
The radio access technology for wideband
wireless access supporting 3G services. It
allows very high speed multimedia services
like wireless Internet access and
videoconferencing. WCDMA is also known as
CDMA DS (Direct Sequence).
UPnP
WEP
Universal Plug and Play.
A networking architecture that provides
compatibility among networking equipment,
software, or between equipment and
software.
Wired Equivalent Privacy.
A method for data encryption on wireless
networks. Data is encrypted into blocks of
either 64 bits length or 128 bits length. The
encrypted data can only be sent and received
by users with access to a private encryption
key.
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Glossary
Wireless
A common term used to describe
telecommunications in which radio waves
(rather than some form of wire) carry the
signal over part or all of the communication
path.
WLAN
Wireless Local Area Network.
A WLAN is a network in which a mobile user
can connect to a LAN through a wireless
(radio) connection. The IEEE 802.11 standard
specifies the technologies for wireless LANs.
WPA
Wi-Fi Protected Access.
An authentication and encryption standard for
wireless networks. WPA addresses the
security limitations of WEP, providing a
stronger data encryption method; TKIP. WPA
data encryption is based on a WPA master
key. The master key is derived from the pass
phrase and the network name (SSID) of the
device.
WPA2
Wi-Fi Protected Access 2.
An enhanced version of WPA. For data
encryption, WPA2 uses AES instead of TKIP.
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Glossary
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