Askey RTW020 User manual

Access Point
.........................................................................................
User Guide

User Guide
Table ofContents
Section 1
Introduction ..........................................................................................1-1
1.1 Package Contents ....................................................................................1-1
1.2 System Requirements ..............................................................................1-1
1.3 AT76C510Features .................................................................................1-1
1.4 Firmware Features ...................................................................................1-2
1.5 Bridging Functions ...................................................................................1-2
1.6 Management............................................................................................1-2
1.7 Roaming ...................................................................................................1-2
1.8 Operation Modes .....................................................................................1-2
1.9 Network Interface .....................................................................................1-2
1.10 Radio Interface .........................................................................................1-2
Section 2
The AP Development Board.................................................................2-1
Section 3
Setting the IP Address of the Access Point .........................................3-1
3.1 Using the Ethernet Port ............................................................................3-1
3.2 Using the USB Port ..................................................................................3-2
Section 4
Access Point Configuration ..................................................................4-1
4.1 Using the Ethernet Port ............................................................................4-1
4.1.1 How to Install the SNMP Manager....................................................4-1
4.1.2 Using the SNMP Manager.................................................................4-1
4.1.3 How to Uninstall the SNMP Manager ..............................................4-10
4.2 Using the USB Port ................................................................................4-10
Section 5
Access Point Firmware Upgrade .........................................................5-1
5.1 Using the Ethernet Port ............................................................................5-1
5.1.1 How to Install the TFTP Client ...........................................................5-1
5.1.2 Using the TFTP Client .......................................................................5-1
5.1.3 How to Uninstall the TFTP Client......................................................5-2
5.2 Using the USB Port ..................................................................................5-2

1-1
Rev. 1932A-9/28/00
Section 1
Introduction
The AP (IEEE 802.11HR,11Mbps WLAN Access Point) is along-range, high
performance LAN product, which provides Access Point services toa 2,4 GHz RF net-
workand bridges toanEthernetbackbone.The designofthis product is basedon
AT76C510 (bridge-on-a-chip)module, a highly integrated ASIC designed to combine
legacy LANs withwireless LANs. AT76C510performs all the necessary inter-network-
ing and bridging functions. It receives data from both networks, stores themlocally for
further processing, installs and maintainsconnections and transmits the packets to the
proper destination. Furthermore,AT76C510 interfaces three more modules,the Ether-
net PHY, the wireless PHY and the RAM modules, for allowing compact system
implementation and flexibility for supporting almost all the possible physical interfaces.
This document describes the steps required for the initial set up of theAP IP address,
the AP configuration, and the firmware upgrade procedure. The description includes the
implementation of the above steps through both Ethernet and USB.
1.1 Package
Contents Please make sure that you received the following with your AT76C510-Development Kit:
•One Bridge Access Point board
•One MACless Radio card
•UserGuide
•Firmware, Drivers, and Software Tools CD
1.2 System
Requirements For configuration through USB:
•Operating System: MS Windows®98
•Desktop PC ornotebook PC with USB port
•USBcable
•4.5-5V (regulated)-1Amp power supply cable
For configuration through Ethernet:
•Operating System: MS Windows®98,Windows®2000, Windows®NT 4.0
•Desktop PC ornotebook PC connected on a LAN
•Ethernet cable
•4.5-5V (regulated)-1Amp power supply cable
1.3 AT76C510
Features Among the features of the AT76C510 bridge-on-a-chip are the following:

Introduction
1-2
–Glueless connectionto Intersil PRISMI, PRISMII Direct Sequence Spread Spectrum
(DSSS) radiochipset. Ableto communicate also with other DSSS radios
–Supports11, 5.5, 2and1 Mbpsrates
–WEP encryption/decryption is accomplished onthe fly
–EthernetMAC supportsMII interfaceand 10/100Mbit speeds
–Hardware modules for PacketFiltering and statisticsgathering
–Glueless SRAM, Flash interface for databuffering and program storage, supporting
up to 16 MB of memory
–Integrated 2x 6K x 32 bit internal SRAM modules forfast32-bit program execution
and temporary storage of data
–Supports3V supply
–128-pin PQFP, TQFP
–JTAG BoundaryScan (IEEE 1149.1) test access port for board-levelproductiontest
1.4 Firmware
Features The IEEE 802.11 HR firmware implementation for the supports:
–Distributed Coordination Function
CSMA/CA
Backoff Procedure
NAV Management
ACK Procedure
Retransmission of unacknowledgedframes
–RTS/CTS Handshake
–Duplicate Detection and Recovery
–Beacon Generation
–ProbeResponse
–Fragmentation and Reassembly
–Wired Equivalent Privacy Algorithm (WEP 40bits)
–AuthenticationAlgorithm (Open System, Shared Key)
–Short Preamble
1.5 Bridging
Functions The following bridging functions are supported:
–AutomaticLearningProcess
–Filtering Database
–Forwarding Process
–Protocol Filtering
–IPFiltering
1.6 Management For Bridge Management supports:
–SNMP (MIB, traps)
–TFTP (firmware download)
–USB (DFU-configuration)
1.7 Roaming Roaming functions supported:
–Among APson the same subnet
1.8 Operation ModesOperation Modes supported:
–Access Point
1.9 Network
Interface AP supports 10/100 Mbps network interface.
1.10 Radio Interface As faras the radio interface is concerned, APsupports:
–AntennaDiversity
–Specific AntennaTx/Rx

2-1
Section 2
The AP Development Board
Figure 2-1 shows theAccess Point developmentboard. The basic fea-
tures of this board are outlined below:
•Interfaces directly to 10/100 IEEE 802.3 Ethernet networks.
•Supports IEEE 802.11b (High data rate) WLAN functions.
•Firmware is stored in a flash memory and can be upgraded remotely.
•Single 5V 1Amp universal power supply.
•Configurable through Ethernet and USB ports.
•Power and wireless activity LED indicators.
The MACless Radio card required is shown in Figure 2-2.
Figure 2-1. AP development board

The AP Development Board
2-2
Figure 2-2. MACless Radio

3-1
Section 3
Setting the IP Address of the Access
Point
The first stepinusingtheAP is to set itsIP Address.This procedurecan be
done either through the Ethernet port by using a combination of Arp/Ping commands
and the SNMP Manager, or the USB port by using the DFU utility.
3.1 Using the
Ethernet Port In orderto set the Access Point IP address you need to know the Access Point MAC
address. Follow the steps below givingthe Access Point a temporaryaddress at the
beginning(Step A) and savingthe IP address through the SNMP Manager application
(Step B).
Step A:
1.Connect an Ethernet station and the Access Point on the same subnet. The sim-
plest way to accomplish that 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.
2.Open a MS-DOS Prompt window and enter a static route in the arp table for the
new IP address you want to assign. Use the arp -s command to do that:
arp -s "new-IP-address" "AP-MAC-address"
For example: arp -s 10.170.254.27 00-00-22-22-22-25
3.Ping the Access Point, using its new IP address.
For example: ping 10.170.254.27
4.If you get a ping reply, then the IP address has been temporarily set.Inorder to
set it permantly you need to proceed to Step B without powering off the Access
Point.
Step B:
1.Execute the SNMPManager application using the IP address as set above (Step
A).
2.Save the current configuration through the SNMP Manager application.
3.Open the SNMP Manager application, select “Connect AP-Bridge” option under
the “File” menu. Try to connect to the Access Point, by typing its IP address in
the panel which appears and at the Community field, type "public" and then

Setting the IP Address of the Access Point
3-2
press OK. Type the IP address in the “IP Configuration” window under the
“Setup” menu, “Bridge” submenu. In order to save the configuration select
“Download Changes” underthe “File” menu. See also the paragraph “Using the
SNMP Manager” in the section “Access Point Configuration”.
3.2 Using the USB
Port Note: This procedure requires the use of the DFU Configuration Utility which can be
used only through the USB port. When you connect the card to the USB port for
the very first time, the operating system will ask for the driver of the card. Please
locate the driverinto your CD. At this time, only a driver for MS Windows 98 is
available. After you have completed the installation of the driver, you can use
the DFU Configuration Utility.
In order to configure the AP IP address through the USB port, you must use the
DFU Configuration Utility.
Plug the USB cable to the Access Point USB port. Open the application DFU.exe which
you will find in the “Utilities” folder of your CD and select the “Configuration”button (Fig-
ure 3-1).
Figure 3-1. DFU Configuration Utility
Press the “Get” button (Figure 3-2) ifyouwanttoview the currentIP address.Ifyou
want to set a new IPaddress, first typethe new IP address in the “Ethernet IPAddress”
field in the configuration window that is already opened, and then select the “Set” com-
mand. In order to set the new parameters you need to wait forafew seconds for the
completion of this process.

Setting the IP Address of the Access Point
3-3
Figure 3-2. DFU Utility Bridge Configuration window

Setting the IP Address of the Access Point
3-4

4-1
Section 4
Access Point Configuration
The AP configuration can be done either through the Ethernet port by using the
SNMP Manager application, or the USB port by using the DFU Utility.
4.1 Using the
Ethernet Port In order to configure the AP through the Ethernetport, you must first install the
SNMP Manager application, which is a powerful and reliable tool used for the remote
configuration of the Access Point through the Ethernet port.
4.1.1 How to Install the
SNMP Manager In order toinstall theSNMP Manager youneedtoextractthe“SNMPManager.zip” file,
which you will findintothe “Utilities” folder ofyour CD, ina temporary file andthenrun
the program “setup.exe”. Follow the instructions of the set-up program and select the
directory where the application will beinstalled. Finally, a windowwill appear indicating
the completion of the installation.
4.1.2 Using the SNMP
Manager Note: Before using the SNMP Manager for configuring the AP, verify that the
Access Point IP address has been set-up following the procedure described in
the section “Setting the IP Address of the Access Point”.
On the Start Menu, select SNMP Manager. When the application opens, select
“Connect AP-Bridge” option which is under the “File” menu. Try to connect to the Access
Point, by typing its IP address in the panel which appears andat the Community field,
type "public" and then press OK (Figure 4-1).

Access Point Configuration
4-2
Figure 4-1. Connecting to the AP using the SNMP Manager
In case ofa successful connection to the Access Point, the following window appears
(Figure 4-2). Press “OK”.
Figure 4-2. Agent found
In case of an unsuccessful connection you receive the following message (Figure 4-3):
Figure 4-3. Agent not found
If the above error message appears,you needtocheck ifthe AP has the desired IP
Address and is connected to the network. In order to check the validity of the IP Address
you need to ping the AP.

Access Point Configuration
4-3
When the connection has successfully been established, you get a message in the right
bottomcornerindicating “All valuesretrieved”. If the message “Not all values retrieved”
appears, you need to repeat the above procedure (Figure 4-1).
As soon as the connection has been established, you are now able to start viewing or
setting the Access Pointparameters. Under the “Setup” menu,there arethree options
available (Figure 4-4):
•Bridge
•Wireless LAN
•Enable SNMP Traps
Figure 4-4. SNMP Bridge menu and submenus
Under the “Bridge” option, there are two submenus: “IP Configuration” and “Operational
Mode”. The “EthernetAddress”, “IP Configuration” and “IP Mask” caneither beviewed
or changed through the “IP Configuration” (Figure 4-5). If changes are made, you need
to “Download Changes” under the “File” menu in order to save them.

Access Point Configuration
4-4
Figure 4-5. Bridge IP Configuration window
You also need to check that the “Access Point”option is enabled under the “Operational
Mode” submenu (Figure 4-6).

Access Point Configuration
4-5
Figure 4-6. Bridge Operational Mode window
Under the “Wireless LAN” option, the following submenus are available (Figure 4-7):
•Phy params
•Privacy Options
•Operational settings

Access Point Configuration
4-6
Figure 4-7. SNMP Wireless LAN menu and submenus
Phy Params (Figure4-8):
•Channel: Select the channel to be used. There are 14 channels available.
•Rate: Select the rate to be used among the following options 1 Mbps, 2 Mbps, 5.5
Mbps and 11 Mbps.

Access Point Configuration
4-7
Figure 4-8. Wireless Physical Parameters window
Privacy Options (Figure 4-9):
There are four 5 Hex digit encryption keys available, and you mustdefine thevalue of
the key of your choice. This key is enabled only if the you select it inthe “Default key”
option. Enable the WEP (ON/OFF) option in order to activate WEP encryption.

Access Point Configuration
4-8
Figure 4-9. Wireless Privacy Options window
Operational Settings (Figure 4-10):
•ESSID: Select the ESSID to be used.
•Fragmentation: This is the option for the Fragmentation Threshold activation.
•RTS Threshold: This is the option for the RTS Threshold activation.
•Authentication Type (Open System, Shared Key, Both).
•Preamble Type (Short, Long).