Atmel Wireless LAN Access Point User Manual

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User’s Guide

Wireless LAN Access Point

Version 3.10

Table of Contents

Information to the User…………………..………... 3

1 Introduction…………………………………………. 5

2 System Configurations...…………………..……… 6

3 Installation...………………………………………... 7

3.1 Installing the SNMP Manager application..… 8

3.2 Setting the IP Address……………………….. 12

3.3 Using the SNMP Manager...……………..….. 14

4 Installation under Windows XP…………………… 33

4.1 Installing the SNMP Manager application..… 34

4.2 Setting the IP Address……………………….. 38

4.3 Using the SNMP Manager...……………..….. 40

5 Technical Specifications…………………………… 59

Troubleshooting……………………………………. 60

Glossary…………………………………………….. 61

Product names mentioned herein may be trademarks and/or registered trademarks of their respective companies.

INFORMATION TO USER

FCC INFORMATION

FCC Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an

uncontrolled environment.

This equipment should be installed and operated with minimum distance 20cm

between the radiator & your body.

This transmitter must not be co-located or operating in conjunction with any

other antenna or transmitter.

The equipment has been tested and found to comply with the limits for a Class B Digital Device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instruction, may cause harmful interference to radio communication. However, there is no grantee that interference will not occur in a particular installation. If this equipment dose cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

--Reorient or relocate the receiving antenna.

--Increase the separation between the equipment and receiver.

--Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

--Consult the dealer or an experienced radio/TV technician for help.

Notice: The Part 15 radio device operates on a non-interference basis with other

devices operating at this frequency. Any changes or modification not expressly approved by the party responsible could void the user’s authority to operate the device.

REGULATORY INFORMATION

The Wireless LAN Access Point must be installed and used in strict accordance with

the manufacturer’s instructions. This device complies with the following radio

frequency and safety standards.

USA - Federal Communications Commission (FCC)

This device complies with Part 15 of FCC Rules. Operation is subject to the following

two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference that may cause undesired operation.

Europe - R&TTE Directive

This device complies with the specifications listed below

• ETS 301-489 -1&-17 General EMC requirements for Radio equipment.

• ETS 300-328 Technical requirements for Radio equipment.

• EN60950 Safety Requirements for Radio equipment

1. Introduction

The Access Point is a wireless LAN bridge that can act as the connection point between the Ethernet CSMA/CD protocol and the wireless CSMA/CA protocol. The Access Point can be easily integrated into your existing wireless network. In large installations, the roaming functionality provided by multiple Access Points allows wireless users to move freely throughout the facility while maintaining seamless, uninterrupted access to the network.

This document describes the steps required for the initial IP address assign and AP configuration. The description includes the implementation of the above steps.

1.1 Installation Requirements

Before you begin installation, make sure that you have the following items:

• The Access Point

• The AC to DC power adapter

• The Documentation CD

You will also need:

• A computer that is connected to the same network as the Access Point.

1.2 System Requirements

• Desktop or laptop PC configuration through Ethernet:

• Operating System: MS Windows 9X, ME, 2000, XP.

2. Wireless LAN basics

Wireless LAN network defined by IEEE 802.11b standard committee could be configured as:

• Ad Hoc wireless LAN, or

• Infrastructure wireless LAN.

Ad Hoc network is a group of notebooks with wireless LAN PC card called a BSS (Basic Service Set). These notebooks use their wireless LAN PC cards to communicate with each other, and notebooks cannot connect to the Internet.

Figure 2-1 Ad Hoc wireless network

The most obvious differentiation between Infrastructure wireless network and Ad Hoc wireless network is that the notebooks in Infrastructure wireless network can make use of the resource in the Internet through Access Point.

STA 3

STA 1

STA 2

Access Point

Internet

Figure 2-2 Infrastructure wireless network

To set up your notebook’s network as the type of “Ad Hoc” or “Infrastructure” wireless network depends completely on your requirement. Generally, if your network environment has an Access Point, we recommend that you set it as “Infrastructure” to connect to the Internet.

STA 1

STA 2

STA 3

3. Installation

This section describes the procedures for installing the Wireless LAN Access Point under Windows 98 SE operating system.

Before You Start

Before setting up your Access Point, ask your network system administrator for the following information:

• Your IP address, gateway address, and subnet mask if you’re not using a DHCP server.

• The MAC address from the label on the bottom of the Access Point.

• Your Wireless Client Name

• Your Wireless SSID

• Your computer’s unique client name and workgroup name

• For your network account, your user name and password.

Every computer on a network is identified by a unique network address. There are two methods of assigning network addresses to computer on a TCP/IP network:

• Static IP addressing

• Dynamic IP addressing (DHCP)

In networks with static IP addressing, the network administrator manually assigns an IP address to each computer. Once a static IP address is assigned, a computer uses the same IP address every time it reboots and logs on to the network. You may manually change the IP address in the Network Properties dialog box. Networks using static IP addresses are easy to set up and do not require additional network management software.

In networks with dynamic IP addressing, a DHCP server in the network dynamically assigns IP addresses to all clients every time they log on to the network. Network using dynamic IP addresses require setting up and running a DHCP Server or installing the Wingate software package.

3.1 Install the SNMP Manager application

Under Windows 98 SE

Step 1. Insert the given Documentation CD and then double click “MY Computer”

icon on desktop. In my computer window, double click the Pure_AP CD

Drive icon. Choose SNMP folder and then double click Setup to install

“SNMP Manager”. It opens the InstallShield Wizard dialog box as shown

next page then

click Next.

Step 2. Software License Agreement, click Yes to accept.

Step 3. Click Next to install to this folder.

Step 4. Setup will add program icons to the Program Folder listed below. You may

type a new folder name, or select one from the Existing Folders list. Click Next

to continue.

Step 5. Review settings before copying files, click Next to start copying files.

Step 6. Start copying files.

Step 7. Click Finish to complete Setup.

3.2 Setting the IP Address

Each station or device on your network must have a unique IP address.

Following these steps to setting the IP address:

Step 1. Connect an Ethernet station and the Access Point on the same subnet. The

simplest way to accomplish is to connect the Access Point and the Ethernet

station to the same hub. You need to check if the station IP address and the

Sub-net mask are configured properly. Also the new IP address for the

Access Point must correspond to the Subnet mask.

Step 2. In my computer window, double click the Pure_AP CD Drive icon. Choose

IP_Config folder and then double click IPConfig to execute. Then IPConfig

screen displays as shown.

Step 3. Type the "Access Point MAC Address" from the label on the bottom of the

Access Point, type the “Config IP” address from your system administrator,

and then click “OK”.

Step 4. Open a MS-DOS Prompt window and type ping followed by the IP address

used in the IP Config. The IP address is assigned to the Access Point . The

Access Point’s replies to the ping confirm that the IP address was assigned

correctly.

Step 5. If you get a ping reply, then the IP address has been temporarily set. In order

to set it permanently you need to run SNMP Manager without powering off

the Access Point.

3.3 Using the SNMP Manager

On the Start Menu, choose Start->Programs->SNMP Manager.

File menu

When the application opens, under the File Menu there are the following

submenus:

Connect to AP

Using this submenu you can directly connect with the Access Point by typing

its IP Address in the panel which appears and at the Community field, type the

appropriate password (The default password is “public”). Additionally you

have to select the User or Administrator Authority in the Authority

combo-box. User Authority allow you only to view and not to set or save

changes to the Access Point Configuration, while Administrator Authority

allow you to either view or set changes to the Access Point Configuration.

Then press OK.

In case of a successful connection to the Access Point, the following window

appears press “OK”

If your network has a DHCP server IP Address can be automatically assigned to the Access Point.

Find Access Point

This submenu allows you to find and connect with an Access Point without the

necessity of knowing its IP Address. Choose this submenu in order to find the

Access Points available for connection. Select one of the available Access

Points and press “Connect”, then appears indicating the IP Address of the

selected Access Point and prompting you to select Authority and to write the

appropriate password at the community field. Then press “OK”.

In case of a successful connection to the Access Point, the following window

appears press “OK”

When the connection has been successfully established, you get a message in the left bottom corner indicating, “Get Configuration done” and on the right bottom corner the “IP Address” of the connected Access Point.

File menu

The “File menu” contains the following enabled submenus.

Close Connection AP

Terminates the connection with the Access Point. You can find and associate

with another access point by selecting the “Find Access Point” after close the

connection.

Download changes

When all the desired values of the parameters have been set you are able to

download the changes (save the changes) to the Access Point by selecting

this submenu.

Refresh

After changing the access point setting, you can update your current display

by clicking the “Fresh” function.

Options

Defines the polling interval according to which the SNMP Manager polls the

Access Point in order to update the statistics and the Associated Stations List.

Setup menu

As soon as the connection has been established, you are able to start viewing

or setting the Access Point parameters. Under the “Setup” menu, there are the following submenus.

Bridge

Under the “Bridge” submenu, there are two options:

— IP configuration

By choosing this option the window of appears.

If DHCP client is not enabled, “IP Address” and ”IP Mask” can be modified

through “IP Configuration”. If DHCP client is enabled the IP Address field

displays IP Address that was dynamically assigned to the AP by the network

DHCP server and the IP Mask field displays IP Mask utilized by the network

DHCP server. Additional you have to select the Primary Port which is the

interface that determines the DHCP server. If changes are made, you need to

“Download Changes” under the “File” menu in order to save them.

Bridge IP Configuration Parameters

MAC Address: Unique 48-bit, hard-coded Media Access Control address

known as the station identifier.

IP address: Network-assigned Internet Protocol address of the Access

Point.

IP Mask: Four sets of three digits that divides a network into subnet works.

— Filtering

If the IP Routing is enabled only the IP protocol packets will pass through the

WLAN and any other protocol filtered out.

Wireless LAN

Under this submenu there are the following three options available.

— Privacy options

By choosing this option you must define the encryption key values of your

choice. There are four 5 Hex digit encryption keys available if you select 64 bit

WEP or there are four 13 Hex digit encryption keys available if you select 128

bit WEP. The key is enabled only if you select it in the “Default key” option.

Enable the WEP (Wired Equivalent Privacy) option in order to activate WEP

encryption for transmissions between the stations and the Access Point. WEP

is an authentication algorithm, which protects authorized Wireless LAN users

against eavesdropping.

For the 64-bit encryption, each key is required to enter 5 Hex digits. For

example: 11 22 33 44 55 66. The 128-bit encryption requires each key to enter

13 Hex digits. For example: 12 34 56 78 9A BC DE F0 11 22 33 44 55.

Note: The Authentication type must be the same on the wireless station and on the access

point. All shared keys on the wireless station must be the same as those on the access point with which the client station is associated.

There are four 5 Hex digit encryption keys available if you select 64 bit WEP.

There are four 13 Hex digit encryption keys available if you select 128 bit WEP.

Or you can select Disable.

— Operational Settings

Using this option you can either view or modify the Wireless LAN parameters

of the Access Point. These parameters are described below:

ESSID: It is an ASCII string up to 32 characters used to identify a WLAN that

prevents the unintentional merging of two co-located WLANs. The

ESSID value must be the same in all stations and Access Point in the

extended WLAN. Select the ESSID to be used.

Channel: There are 14 channels available. The channels differ from country to

country. Select the channel to be used.

Fragmentation threshold: The size at which packets will be fragmented.

Choose a setting within a range of 256 to 2346 bytes.

RTS Threshold: Minimum packet size to require an RTS (Request To Send).

For packets smaller than this threshold, an RTS is not sent and the

packet is transmitted directly to the WLAN. This is the option for the

RTS Threshold activation.

Preamble Type (Short/Long): Preamble is the first sub field of PPDU, which is

the appropriate frame format for transmission to PHY (Physical layer).

There are two options, Short Preamble and Long Preamble. The

Short Preamble option improves throughput performance.

Rata: By default the unit adoptively selects the highest possible rate for

transmission. Select the basic rates to be used among the following

options 1-2-5.5-11(Mbps),

Auto Rate Fall Back: When this is enabled the transmission rate is the

optimum rate. In case of obstacles or interference, the system will

automatically fall back.

Regulatory Domain: The value of this field is already set and can not be

modified.

—Authorized MAC address

For security reasons the Access Point has the ability to associate with

authorized MAC Addresses stations, if the Authorization Table option is

enabled. Thus, under the Authorized MAC Address option you may press the

following buttons.

The “Load file” button in order to load a file with the MAC addresses that can be associated with the Access Point (Authorized MAC Addresses).

The “Download” button in order to download the Authorized MAC Address to the Access Point.

The “Get” button in order to get from the Access Point the Authorized MAC Addresses.

Authorization Table example:

Use Notepad to create

Authorization Table file

Enable SNMP Traps

Using this submenu you can either enable or disable SNMP traps, which are

messages displayed in the right bottom corner for the main window indicating

that an action related to the AP took place. Permitted messages are :

Trap Reassociation: This trap message is sent when a Station’s reassociation

request is received from the AP.

Trap Association: Indicates the reception of an association request packet and

the sender Station’s successful association with the Wireless AP.

Trap Disassociation: This trap message is sent when a disassociation

notification packet is received from a Station.

Trap Reset: This trap message is sent when the AP resets.

Trap Setting IP Address with Ping: This trap message is sent when the

Wireless AP IP address is set with the transmission of a ping message.

Trap Start Up: This trap message is sent when Wireless AP starts up.

Trap Failed to Erase Flash: This trap message is sent when Wireless AP fails

to erase flash.

Authorization

Using this submenu the Administrator can change the passwords which

referred to the community field for the User and the Administrator Authority.

Commands menu

Under this menu there are two submenus.

Reset Device: you can reset the Access Point. This action takes place after a

user makes configuration changes in order to initiate the changes.

Restore Default: You can restore the factory default values of the Access

Point.

Info menu

Using this menu you can view a limited number of statistics by choosing the “SNMP-Short View” of the “Change Mode” Software. There are the following submenu:

Wireless Statistics: This submenu reports the statistics concerning the unit’s Wireless activity.

The meaning of the fields, concerning all the statistics, is given in the following.

Unicast Transmitted Packets: The number of unicast packets successfully

transmitted.

Broadcast transmitted packets: The number of broadcast packets transmitted.

Multicast transmitted packets: The number of multicast packets transmitted.

Unicast Received Packets: The number of unicast packets that were

successfully received.

Broadcast Received: The number of broadcast packets that were successfully

received.

Multicast Received: The number of multicast packets that were successfully

received.

Ethernet Wireless Statistics: This submenu reports the statistics concerning the unit’s Ethernet port activity. The meaning of the fields, concerning all the statistics is given in the following.

Received Packets:

Total Bytes: The number of bytes in the frames that were received.

Total Packs: Total number of received packets.

Packet CRC Errors: The number of packets with CRC Errors.

Transmitted Packets:

Total Bytes: The number of bytes in the frames that were transmitted.

Total Packs: Total number of received transmitted.

Packet CRC Errors: The number of packets with CRC Errors.

Traps menu

Provides information for trap messages

View Record

You can see additional information for every Trap Message.

Network menu

Provides information about the Network. Under this menu there is only the Associate Station submenu.

Associated stations Using this submenu you can view the MAC Addresses of the Associated stations with the Access Point.

Window menu

Under this menu there are the following submenus Cascade: All opened windows are arranged on the desktop in a cascade fashion.

Tile All open windows are visible on the desktop.

Help menu

Provides on line help about the application.

4. Installation under Windows XP

This section describes the procedures for installing the Wireless LAN Access Point under Windows XP operating system.

Before You Start

Before setting up your Access Point, ask your network system administrator for the following information:

• Your IP address, gateway address, and subnet mask if you’re not using a DHCP server.

• The MAC address from the label on the bottom of the Access Point.

• Your Wireless Client Name

• Your Wireless SSID

• Your computer’s unique client name and workgroup name

• For your network account, your user name and password.

Every computer on a network is identified by a unique network address. There are two methods of assigning network addresses to computer on a TCP/IP network:

• Static IP addressing

• Dynamic IP addressing (DHCP)

4.1 Install the SNMP Manager application

Step 1. Insert the given Documentation CD and then click “start” menu select MY

Computer then click. In my computer window, double click the Pure_AP

CD Drive icon. Choose SNMP folder and then double click Setup to install

“SNMP Manager”. It opens the InstallShield Wizard dialog box as shown

next page then

click Next.

Step 2. Software License Agreement, click Yes to accept.

Step 3. Click Next to install to this folder.

Step 4. Setup will add program icons to the Program Folder listed below. You may

type a new folder name, or select one from the Existing Folders list. Click

Next to continue.

Step 5. Review settings before copying files, click Next to start copying files.

Step 6. Start copying files.

Step 7. Click Finish to complete Setup.

4.2 Setting the IP Address

Each station or device on your network must have a unique IP address. Following

these steps to setting the IP address:

Step 1. Connect an Ethernet station and the Access Point on the same subnet. The

simplest way to accomplish is to connect the Access Point and the Ethernet

station to the same hub. You need to check if the station IP address and the

Sub-net mask are configured properly. Also the new IP address for the

Access Point must correspond to the Subnet mask.

Step 2. In my computer window, double click the Pure_AP CD Drive icon. Choose

IP_Config folder and then double click IPConfig to execute. Then IPConfig

screen displays as shown.

Step 3. Type the "Access Point MAC Address" from the label on the bottom

of the Access Point, type the “Config IP” address from your system

administrator, and then click “OK”.

Step 4. Open a MS-DOS Prompt window and type ping followed by the IP address

used in the IP Config. The IP address is assigned to the Access Point. The

Access Point’s replies to the ping confirm that the IP address was assigned

correctly.

Step 5. If you get a ping reply, then the IP address has been temporarily set. In order

to set it permanently you need to run SNMP Manager without powering off

the Access Point.

4.3 Using the SNMP Manager

Click “start” menu select Wireless LAN Utilities Æ AP Configuration Æ

AP Configuration then click.

File menu

When the application opens, under the File Menu there are the following

submenus:

Connect to AP

Using this submenu you can directly connect with the Access Point by typing its

IP Address in the panel which appears and at the Community field, type the

appropriate password (The default password is “public”). Additionally you have

to select the User or Administrator Authority in the Authority combo-box. User

Authority allow you only to view and not to set or save changes to the Access

Point Configuration, while Administrator Authority allow you to either view or

set changes to the Access Point Configuration. Then press OK.

In case of a successful connection to the Access Point, the following window

appears press “OK”

If your network has a DHCP server IP Address can be automatically assigned to the Access Point.

Find Access Point

This submenu allows you to find and connect with an Access Point without the

necessity of knowing its IP Address. Choose this submenu in order to find the

Access Points available for connection. Select one of the available Access

Points and press “Connect”, then appears indicating the IP Address of the

selected Access Point and prompting you to select Authority and to write the

appropriate password at the community field. Then press “OK”.

In case of a successful connection to the Access Point, the following window

appears press “OK”

File menu

The “File menu” contains the following enabled submenus.

Close Connection AP

Terminates the connection with the Access Point. You can find and associate

with another access point by selecting the “Find Access Point” after close the

connection.

Download changes

When all the desired values of the parameters have been set you are able to

download the changes (save the changes) to the Access Point by selecting

this submenu.

Refresh

After changing the access point setting, you can update your current display

by clicking the “Fresh” function.

Options

Defines the polling interval according to which the SNMP Manager polls the

Access Point in order to update the statistics and the Associated Stations List.

Setup menu

As soon as the connection has been established, you are able to start viewing

or setting the Access Point parameters. Under the “Setup” menu, there are the following submenus.

Bridge

Under the “Bridge” submenu, there are two options:

— IP configuration

By choosing this option the window of appears.

If DHCP client is not enabled, “IP Address” and ”IP Mask” can be modified

through “IP Configuration”. If DHCP client is enabled the IP Address field

displays IP Address that was dynamically assigned to the AP by the network

DHCP server and the IP Mask field displays IP Mask utilized by the network

DHCP server. Additional you have to select the Primary Port which is the

interface that determines the DHCP server. If changes are made, you need to

“Download Changes” under the “File” menu in order to save them.

Bridge IP Configuration Parameters

MAC Address: Unique 48-bit, hard-coded Media Access Control address

known as the station identifier.

IP address: Network-assigned Internet Protocol address of the Access

Point.

IP Mask: Four sets of three digits that divides a network into subnet works.

— Filtering

If the IP Routing is enabled only the IP protocol packets will pass through the

WLAN and any other protocol filtered out.

Wireless LAN

Under this submenu there are the following three options available.

— Privacy options

By choosing this option you must define the encryption key values of your

choice. There are four 5 Hex digit encryption keys available if you select 64 bit

WEP or there are four 13 Hex digit encryption keys available if you select 128

bit WEP. The key is enabled only if you select it in the “Default key” option.

Enable the WEP (Wired Equivalent Privacy) option in order to activate WEP

encryption for transmissions between the stations and the Access Point. WEP

is an authentication algorithm, which protects authorized Wireless LAN users

against eavesdropping.

For the 64-bit encryption, each key is required to enter 5 Hex digits. For

example: 11 22 33 44 55 66. The 128-bit encryption requires each key to enter

13 Hex digits. For example: 12 34 56 78 9A BC DE F0 11 22 33 44 55.

Note: The Authentication type must be the same on the wireless station and on the access

point. All shared keys on the wireless station must be the same as those on the access point with which the client station is associated.

There are four 5 Hex digit encryption keys available if you select 64 bit WEP.

There are four 13 Hex digit encryption keys available if you select 128 bit WEP.

Or you can select Disable.

— Operational Settings

Using this option you can either view or modify the Wireless LAN parameters

of the Access Point. These parameters are described below:

ESSID: It is an ASCII string up to 32 characters used to identify a WLAN that

prevents the unintentional merging of two co-located WLANs. The

ESSID value must be the same in all stations and Access Point in the

extended WLAN. Select the ESSID to be used.

Channel: There are 14 channels available. The channels differ from country to

country. Select the channel to be used.

Fragmentation threshold: The size at which packets will be fragmented.

Choose a setting within a range of 256 to 2346 bytes.

RTS Threshold: Minimum packet size to require an RTS (Request To Send).

For packets smaller than this threshold, an RTS is not sent and the

packet is transmitted directly to the WLAN. This is the option for the

RTS Threshold activation.

Preamble Type (Short/Long): Preamble is the first sub field of PPDU, which is

the appropriate frame format for transmission to PHY (Physical layer).

There are two options, Short Preamble and Long Preamble. The

Short Preamble option improves throughput performance.

Rata: By default the unit adoptively selects the highest possible rate for

transmission. Select the basic rates to be used among the following

options 1-2-5.5-11(Mbps),

Auto Rate Fall Back: When this is enabled the transmission rate is the

optimum rate. In case of obstacles or interference, the system will

automatically fall back.

Regulatory Domain: The value of this field is already set and can not be

modified.

—Authorized MAC address

For security reasons the Access Point has the ability to associate with

authorized MAC Addresses stations, if the Authorization Table option is

enabled. Thus, under the Authorized MAC Address option you may press the

following buttons.

The “Load file” button in order to load a file with the MAC addresses that can be associated with the Access Point (Authorized MAC Addresses).

The “Download” button in order to download the Authorized MAC Address to the Access Point.

The “Get” button in order to get from the Access Point the Authorized MAC Addresses.

Authorization Table example:

Use Notepad to create

Authorization Table file

Enable SNMP Traps

Using this submenu you can either enable or disable SNMP traps, which are

messages displayed in the right bottom corner for the main window indicating

that an action related to the AP took place. Permitted messages are :

Trap Reassociation: This trap message is sent when a Station’s reassociation

request is received from the AP.

Trap Association: Indicates the reception of an association request packet and

the sender Station’s successful association with the Wireless AP.

Trap Disassociation: This trap message is sent when a disassociation

notification packet is received from a Station.

Trap Reset: This trap message is sent when the AP resets.

Trap Setting IP Address with Ping: This trap message is sent when the

Wireless AP IP address is set with the transmission of a ping message.

Trap Start Up: This trap message is sent when Wireless AP starts up.

Trap Failed to Erase Flash: This trap message is sent when Wireless AP fails

to erase flash.

Authorization

Using this submenu the Administrator can change the passwords which

referred to the community field for the User and the Administrator Authority.

Commands menu

Under this menu there are two submenus.

Reset Device: you can reset the Access Point. This action takes place after a

user makes configuration changes in order to initiate the changes.

Restore Default: You can restore the factory default values of the Access

Point.

Info menu

Using this menu you can view a limited number of statistics by choosing the “SNMP-Short View” of the “Change Mode” Software. There are the following submenu:

Wireless Statistics: This submenu reports the statistics concerning the unit’s Wireless activity.

The meaning of the fields, concerning all the statistics, is given in the following.

Unicast Transmitted Packets: The number of unicast packets successfully

transmitted.

Broadcast transmitted packets: The number of broadcast packets transmitted.

Multicast transmitted packets: The number of multicast packets transmitted.

Unicast Received Packets: The number of unicast packets that were

successfully received.

Broadcast Received: The number of broadcast packets that were successfully

received.

Multicast Received: The number of multicast packets that were successfully

received.

Ethernet Wireless Statistics: This submenu reports the statistics concerning the unit’s Ethernet port activity. The meaning of the fields, concerning all the statistics is given in the following.

Received Packets:

Total Bytes: The number of bytes in the frames that were received.

Total Packs: Total number of received packets.

Packet CRC Errors: The number of packets with CRC Errors.

Transmitted Packets:

Total Bytes: The number of bytes in the frames that were transmitted.

Total Packs: Total number of received transmitted.

Packet CRC Errors: The number of packets with CRC Errors.

Traps menu

Provides information for trap messages

View Record

You can see additional information for every Trap Message.

Network menu

Provides information about the Network. Under this menu there is only the Associate Station submenu.

Associated stations Using this submenu you can view the MAC Addresses of the Associated stations with the Access Point.

Window menu

Under this menu there are the following submenus Cascade: All opened windows are arranged on the desktop in a cascade fashion.

Tile All open windows are visible on the desktop.

Help menu

Provides on line help about the application.

5. Technical Specifications

Wireless LAN Access Point

This section provides the Access Point specifications.

Date Rates 1, 2, 5.5 and 11Mbps

Operating Range With outdoors line of sight PING to 250 meters

RF IEEE 802.11b compliant

Frequency Band 2400-2500 MHz

Wireless Medium Direct Sequence Spread Spectrum (DSSS)

Channels Europe 13, USA 11, Japan 13, France 4

Modulation

1 Mbps DBPSK 2 Mbps DQPSK

5.5 Mbps CCK 11 Mbps CCK

Ethernet Interface 10/100Base-T (RJ-45)

Power AC 100-240V 50-60 Hz to 5VDC / 1A converter incl.

Mobility Seamless roaming across cell boundaries

Security IEEE standard WEP 40-bit, 128-bit

Environmental

0°C to 55°C operating

95% humidity

Network Management SNMP agent with support for MIB-II and IEEE 802.11 MIB

LED Indicators Power, RF activity, Ethernet connection

Utility

AP management software for windows 9X / ME/ 2000 / XP.

Standards compliance Meet for CE & FCC part 15

Troubleshooting

Possible Remedy:

The Power and Act LEDs should be always on after you plug in the power. If not,

please check the power adaptor/cord or contact your vendor.

Symptom:

The Link LED is off.

Possible Remedy:

The Link LED should be on after you plug in the Ethernet cable that the other end is

connecting to Hub. If not, please check the RJ-45 connector/twist pair/Hub is

operating properly or contact your vendor.

Symptom:

Can’t configure this AP.

Possible Remedy:

1. Make sure that you have installed SNMP Manager from attached CD.

2. Check the Ethernet connection. The AP is designed to connect to hub directly or

connect to PC with crossover twist pair.

3. Check the IP address. The AP left from factory with a default IP address,

192.168.0.1. If this address does not belong to the Sub Network of the configuring

terminal, then you would execute IPConfig.exe from attached CD to modify it.

The MAC address could be found on the button side.

Symptom:

After configuration is done, but there is no any client associating with AP.

Possible Remedy:

1. Make sure there is any properly operating client in the serving area.

2. Verify the clients and AP is sharing the same SSID and channel.

3. Make sure they are operating under same authentication type. WEP function has

to be enabled, if Shared Key Authentication is the selection, and the secret Keys

have to be same in the communicating group.

4. Position the antenna to gain the maximum RF power and make sure there is no

metal objects, electron devices or cordless phone in the vicinity.

Symptom:

Slow or erratic performance

Possible Remedy:

Try change the wireless channel on the AP or move clients closer to the AP.

Glossary

IEEE 802.11 Standard

The IEEE 802.11 Wireless LAN standards subcommittee, which is formulating a standard for the industry. The objective is to enable wireless LAN hardware from different manufacturers to enteropera.

Access Point

An internetworking device that seamlessly connects wired and wireless networks together.

Ad Hoc

An Ad Hoc wireless LAN is a group of computers, each with a WLAN adapter, connected as an independent wireless LAN. Ad Hoc wireless LAN is applicable at a departmental scale for a branch or SOHO operation.

BSSID

A specific Ad Hoc LAN is called a Basic Service Set (BSS). Computers in a BSS must be configured with the same BSSID.

DHCP

Dynamic Host Configuration Protocol - a method in which IP addresses are assigned by server dynamically to clients on the network. DHCP is used for Dynamic IP Addressing and requires a dedicated DHCP server on the network.

Direct Sequence Spread Spectrum

This is the method the wireless cards use to transmit data over the frequency spectrum. The other method is frequency hopping. Direct sequence spreads the data over one frequency range (channel) while frequency hopping jumps from one narrow frequency band to another many times per second.

ESSID

An Infrastructure configuration could also support roaming capability for mobile workers. More than one BSS can be configured as an Extended Service Set (ESS). Users within an ESS could roam freely between BSSs while served as a continuous connection to the network wireless stations and Access Points within an ESS must be configured with the same ESSID and the same radio channel.

Ethernet

Ethernet is a 10/100Mbps network that runs over dedicated home/office wiring. Users must be wired to the network at all times to gain access.

Gateway

A gateway is a hardware and software device that connects two dissimilar systems, such as a LAN and a mainframe. In Internet terminology, a gateway is another name for a router. Generally a gateway is used as a funnel for all traffic to the Internet.

IEEE

Institute of Electrical and Electronics Engineers

Infrastructure

An integrated wireless and wired LAN is called an Infrastructure configuration. Infrastructure is applicable to enterprise scale for wireless access to central database, or wireless application for mobile workers.

ISM Band

The FCC and their counterparts outside of the U.S. have set aside bandwidth for unlicensed use in the so-called ISM (Industrial, Scientific and Medical) band. Spectrum in the vicinity of 2.4 GHz, in particular, is being made available worldwide. This presents a truly revolutionary opportunity to place convenient high-speed wireless capabilities in the hands of users around the globe.

Local Area Network (LAN)

A LAN is a group of computers, each equipped with the appropriate network adapter card connected by cable/air, that share applications, data, and peripherals. All connections are made via cable or wireless media, but a LAN does not use telephone services. It typically spans a single building or campus.

Network

A network is a system of computers that is connected. Data, files, and messages can be transmitted over this network. Networks may be local or wide area networks.

PCMCIA

Personal Computer Memory Card International Association. Also a PCMCIA card is also referred to PC Card.

Protocol

A protocol is a standardized set of rules that specify how a conversation is to take place, including the format, timing, sequencing and/ or error checking.

Roaming

In an infrastructure network, this is when a wireless PC moves out of range of the previously connected access point and connects to a newly connected access point. Throughout the network environment where access point are deployed, PCs can always be connected regardless of where they are located or roam.

SSID

A Network ID unique to a network. Only clients and Access Points that share the same SSID are able to communicate with each other. This string is case-sensitive.

Simple Network Management Protocol (SNMP)

Simple Network Management Protocol is the network management protocol of TCP/IP. In SNMP, agents-which can be hardware as well as software-monitor the activity in the various devices on the network and report to the network console workstation. Control information about each device is maintained in a structure known as a management information block.

Static IP Addressing

A method of assigning IP addresses to clients on the network. In networks with Static IP address, the network administrator manually assigns an IP address to each computer. Once a Static IP address is assigned, a computer uses the same IP address every time it reboots and logs on to the network, unless it is manually changed.

Transmission Control Protocol / Internet Protocol (TCP/IP)

TCP/IP is the protocol suite developed by the Advanced Research Projects Agency (ARPA). It is widely used in corporate Internet works, because of its superior design for WANs. TCP governs how packet is sequenced for transmission the network. The term “TCP/IP” is often used generically to refer to the entire suite of related protocols.

Transmit / Receive

The wireless throughput in Bytes per second averaged over two seconds.

Wide Area Network (WAN)

A WAN consists of multiple LANs that are tied together via telephone services and / or fiber optic cabling. WANs may span a city, a state, a country, or even the world.

Wireless LAN (WLAN)

A wireless LAN does not use cable to transmit signals, but rather uses radio or infrared to transmit packets through the air. Radio Frequency (RF) and infrared are the commonly used types of wireless transmission. Most wireless LANs use spread spectrum technology. It offers limited bandwidth, usually under 11Mbps, and users share the bandwidth with other devices in the spectrum; however, users can operate a spread spectrum device without licensing from the Federal Communications Commission (FCC).

Atmel Wireless LAN Access Point User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual