Askey Computer RTW020 Users manual

Access Point

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User Guide

Table of Contents

Section 1

Introduction ..........................................................................................1-1

1.1 Package Contents ....................................................................................1-1

1.2 System Requirements ..............................................................................1-1

1.3 AT76C510 Features .................................................................................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

User Guide

Section 1

Introduction

The AP (IEEE 802.11 HR, 11 Mbps WLAN Access Point) is a long-range, high
performance LAN product, which provides Access Point services to a 2,4 GHz RF net­work and bridges to an Ethernet backbone. The design of this product is based on
AT76C510 (bridge-on-a-chip) module, a highly integrated ASIC desi gned to combine
legacy LANs with wireless LANs. AT76C510 performs all the necessary inter-network­ing and bridging functions. It receives data from both networks, stores them locally for
further processing, inst alls and maintains connections and transmits the pac kets to the
proper destination. Furthermore, AT76C510 interfaces three more modules, the Ether­net 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 the AP 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

1.2 System Requirements

1.3 AT76C510 Features

Please make sure that you received the following with your AT76C510-Development Kit:

•One Bridge Access Point board

•One MACless Radio card

•User Guide

•Firmware, Drivers, and Software Tools CD

For configuration through USB:

•Operating System: MS Windows

•Desktop PC or notebook PC with USB port

•USB cable

•4.5-5V (regulated)-1Amp power supply cable

For configuration through Ethernet:

•Operating System: MS Windows

•Desktop PC or notebook PC connected on a LAN

•Ethernet cable

•4.5-5V (regulated)-1Amp power supply cable

Among the features of the AT76C510 bridge-on-a-chip are the following:

®

98

®

98, Windows® 2000, Windows® NT 4.0

1-1

Rev. 1932A-9/28/00

Introduction

–Glueless connection to Intersil PRISMI, PRISMII Direct Sequence Spread Spectrum

(DSSS) radio chip set. Able to communicate also with other DSSS radios
–Supports 11, 5.5, 2 and 1 Mbps rates
–WEP encryption/decryption is accomplished on the fly
–Ethernet MAC supports MII interface and 10/100Mbit speeds
–Hardware modules for Packet Filtering and statistics gathering
–Glueless SRAM, Flash interface for data buffering and program storage, supporting

up to 16 MB of memory
–Integrated 2 x 6K x 32 bit internal SRAM modules for fast 32-bit program execution

and temporary storage of data
–Supports 3V supply
–128-pin PQFP, TQFP
–JTAG Boundary Scan (IEEE 1149.1) test access port for board-level production test

1.4 Firmware Features

1.5 Bridging Functions

1.6 Management

The IEEE 802.11 HR firmware implementation for the supports:

–Distributed Coordination Function

CSMA/CA
Backoff Procedure
NAV Management
ACK Procedure

Retransmission of unacknowledged frames
–RTS/CTS Handshake
–Duplicate Detection and Recovery
–Beacon Generation
–Probe Response
–Fragmentation and Reassembly
–Wired Equivalent Privacy Algorithm (WEP 40 bits)
–Authentication Algorithm (Open System, Shared Key)
–Short Preamble

The following bridging functions are supported:

–Automatic Learning Process
–Filtering Database
–Forwarding Process
–Protocol Filtering
–IP Filtering

For Bridge Management supports:

–SNMP (MIB, traps)
–TFTP (firmware download)
–USB (DFU-configuration)

1.7 Roaming

1.8 Operation Modes

1.9 Network Interface

1.10 Radio Interface

1-2

Roaming functions supported:

–Among APs on the same subnet

Operation Modes supported:

–Access Point

AP supports 10/100 Mbps network interface.

As far as the radio interface is concerned, AP supports:

–Antenna Diversity
–Specific Antenna Tx/Rx

Section 2

The AP Development Board

Figure 2-1 shows the Access Point development board. The basic fea­tures 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

2-1

The AP Development Board

Figure 2-2.

MACless Radio

2-2

Section 3

Setting the IP Address of the Access

Point

The first step in using the AP is to set its IP Address. This procedure can 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 order to set the Access Point IP address you need to know the Access Point MAC
address. Follow the steps below giving the Access Point a temporary address at the
beginning (Step A) and saving the IP address through the SNMP Manager application
(Step B).

Step A:

1.Connect an Ethernet station and the Access Point on the same subnet
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 Sub­net 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 s et. In order to
set it permantly you need to proceed to Step B without powering off
Point.

Step B:

1.Execute the SNMP Manager 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

. The sim-

the Access

3-1

Setting the IP Address of the Access Point

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” under the “File” menu. See also the paragraph “Using the
SNMP Manager” in the section “Access Point Configuration”.

3.2 Using the USB Port

Note:

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 por t. Open the application DFU.exe which
you will find in the “Utilities” folder of your CD and select the “Configuration” button (Fig­ure 3-1).

Figure 3-1.

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 driver into 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.

DFU Configuration Utility

3-2

Press the “Get” button (Figure 3-2) if you want to view the current IP address. If you
want to set a new IP address, first type the new IP address in the “Ethernet IP Address”
field in the configuration window that is already opened, and then selec t the “Set” com­mand. In order to set the new parameters you need to wait for a few seconds for the
completion of this process.