GemTek Technology A920909G Wireless 11g Multi-function Access Point User Manual 1 Introduction
Gemtek Technology Co., Ltd. Wireless 11g Multi-function Access Point 1 Introduction
User Manual
Wireless 11g Multi-Function AP
User’s Manual
Version 1.5
User’s Guide 0
Copyright Statement
No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, whether electronic, mechanical,
photocopying, recording, or otherwise without the prior writing of the publisher.
July. 2003
User’s Guide 1
Federal Communication Commission Interference Statement
This 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 instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does 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 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.
FCC Caution: To assure continued compliance, any changes or modifications not expressly
approved by the party responsible for compliance could void the user’s authority to operate this
equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
IMPORTANT NOTE:
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.
Contents
1. Introduction............................................................................................................... 3
2. Safety Notification .................................................................................................... 4
3. Hardware Installation................................................................................................ 5
4 Web Management Settings ....................................................................................... 6
4.1. Primary Setup ………………………………………………………………………………………………7
4.2. System…..………………………………………………………………………………………………….11
4.3. Operating Mode……………………………………………………………………………………………12
4.4. Status……………………………………………………………………………………………………….14
4.5 Traffic Log…………………………………………………………………………………………………..15
4.6 AccessControl ……………………………………………………………………………………………..16
4.7 Advanced Wireless………………………………………………………………………………………..17
4.8. SNMP………………………………………………………………………………………………………19
4.9. Upgrade Firmware………………………………………………………………………………………..20
5. Troubleshooting...................................................................................................... 22
User’s Guide 2
1. Introduction
Thank you for purchasing your AP Wireless 802.11g AP.
This user guide will assist you with the installation procedure.
The package you have received should contain the following items:
AP Wireless 802.11g AP
User Guide
Power Supply / Cord
Ethernet Cable
Note: if anything is missing, please contact your vendor
User’s Guide 3
3. Hardware Installation
Front Panel
The front panel provides LED’s for device status. Refer to the following table for the meaning of each
feature.
LED STATUS Description
Off No power
Green On 1. Power on 2. Reset to default 3. Firmware upgrade (first 1
minute)
PWR/STAT
Green
Blink 1. System up 2. Power on 3. Firmware upgrade
Off no Ethernet link detected
Green On 10/100Mbps Fast Ethernet link detected. No activity.
Link
Green
Blink Indicates data traffic on the 10/100 Mbps LAN
Active Green
Blink Indicates the device is linking or active data through wireless
links
Rear Panel
The rear panel features 1 LAN ports and Reset button. Refer to the following table for the meaning of
each feature.
Power (DC 5v)
Used to connect to the power outlet. Only use the power
adapter provided with the device. Use of an unauthorized
power adapter may cause damage to your device and
violate your warranty.
Reset Press the Reset Button for approximately ten seconds, all
configurations will set to factory default settings.
LAN The RJ-45 Ethernet ports used to connect your PC, hub,
switch or Ethernet network.
AP Default Settings
The default settings are shown following.
User admin
Password admin
AP IP Address 192.168.1.250
AP Subnet Mask 255.255.255.0
RF ESSID ap11g
11g RF Channel 6
Mode 11b+g
Encryption Disabled
User’s Guide 5
4 Web Management Settings
TURN ON POWER SUPPLY
Quick power cycle can caused system corruption. When power on, be careful not to shut down in
about 5 seconds, because data is writing to the flash.
START UP & LOGIN
In order to configure the Wireless 11g AP, you must use your web browser and manually input
http://192.168.1.250 into the Address box and press Enter. The Main Page will appear.
To start configure the Wireless 11g AP, you must login as “admin” in the User Name box. And input
password “admin” on the password section.
Once you have logged-in as administrator, it is a good idea to change the administrator password to
ensure a secure protection to the Wireless 11g AP. The Security Settings section described later in
this manual describes how to change the password.
Once you have input the correct password and logged-in, the screen will change to the Setup page
screen.
User’s Guide 6
4.1. Primary Setup
MAKE CORRECT NETWORK SETTINGS OF YOUR COMPUTER
To change the configuration, use Internet Explorer (IE) or Netscape Communicator to connect the
WEB management 192.168.1.250.
Primary Setup
This screen contains all of the AP's basic setup functions.
.
Most users will be able to configure the AP and get it working properly using the settings on this
screen.
LAN IP Address and Subnet Mask: This is the AP's IP Address and Subnet Mask as seen on the
internal LAN. The default value is 192.168.1.250 for IP Address and 255.255.255.0 for Subnet Mask.
User’s Guide 7
Wireless: This section provide the Wireless Network settings for your WLAN
Wireless Settings
SSID: The service set identifier ( SSID ) or network name. It is case sensitive and must not exceed 32
characters, which may be any keyboard character. You shall have selected the same SSID for all the
APs that will be communicating with mobile wireless stations.
Channel: Select the appropriate channel from the list provided to correspond with your network
settings. You shall assign a different channel for each AP to avoid signal interference.
Security: There are 3 types of security to be selected. To secure your Wireless Networks, it’s strongly
recommended to enable this feature.
-WEP Make sure that all wireless devices on your network are using the same encryption level and
key. WEP keys must consist of the letters "A" through "F" and the numbers "0" through "9."
User’s Guide 8
Important Notice
In order to make right use of WPA, please ensure that your current Wireless Adapter’s driver, and
Wireless Utility can support it, WPA needs 802.1x authentication (when RADIUS mode is chosen),
though the Operating System must also support 802.1x protocol. For Microsoft’s OS family, only
Windows XP has incorporated this by default. The rest of the OS must installed 3er party’s client
software such as Funk ODySSey.
User’s Guide 9
-WPA-Preshared key
There are two encryption options for WPA Pre-Shared Key, TKIP and AES. TKIP stands for
Temporal Key Integrity Protocol. TKIP utilizes a stronger encryption method and incorporates
Message Integrity Code (MIC) to provide protection against hackers. AES stands for Advanced
Encryption System, which utilizes a symmetric 128-Bit block data encryption.
To use WPA Pre-Shared Key, enter a password in the WPA Shared Key field between 8 and 63
characters long. You may also enter a Group Key Renewal Interval time between 0 and 99,999
seconds.
WPA
Algorithms Please choose your algorithms method. You can select
between TKIP or AES.
WPA Shared
Key Please input the Pre-Shared Key. The key should be 8
characters or 63 characters in alphanumeric.
Group Key
Renewal Please input the period of renewal time. The default selection
is 300 seconds.
-WPA RADIUS
WPA RADIUS uses an external RADIUS server to perform user authentication. To use WPA
RADIUS, enter the IP address of the RADIUS server, the RADIUS Port (default is 1812) and
the shared secret from the RADIUS server.
WPA
Algorithms Please choose your algorithms method. You can select
between TKIP or AES.
Radius
Server
Address
Please input your RADIUS Server IP address.
RADIUS
Server Port Please input the Authentication port of your RADIUS server.
The default port being used is 1812
RADIUS
Shared Key The RADIUS server will accept the authentication if both
Shared Key matched.
Group Key
Renewal Please input the period of renewal time. The default selection
is 300 seconds.
* Click Apply to save your settings.
User’s Guide 10
4.2. System
AP Password: Changing the password for the AP is as easy as typing the password into the Enter
New Password field. Then, type it again into the Re-enter to confirm.
* Click the Apply button to save the setting.
Use the default password when you first open the configuration pages, after you have configured
these settings, you should set a new password for the AP (using the Password screen). This will
increase security, protecting the AP from unauthorized changes.
Restore Factory Defaults: Click the Yes button to reset all configuration settings to factory default
values. Note: Any settings you have saved will be lost when the default settings are restored. Click the
No button to disable the Restore Factory Defaults feature.
Click the Apply button to save the setting.
Backup/Restore Setting: Click Backup to store the Access Point’s configuration on your local PC.
Click Restore to restore Access Point’s configuration from your local PC
* Check all the settings and click Apply to save them.
User’s Guide 11
4.3. Operating Mode
Access Point: This mode provides access for wireless stations to wired LANs and from wired LANs
to wireless stations.
User’s Guide 12
User’s Guide 13
Important
Both units must be selected as AP Repeater mode in order to establish the Wireless link
communication.
AP Repeater: This mode allows the AP to keep the AP function role and at the same time performing
a communication with other 802.11g AP to establish and extend your Wireless Network cover. Please
enter the Remote Access Point’s MAC address to enable this feature.
Wireless Bridge: This mode allows the connection of one or more remote LANs with a central LAN.
* Click Apply to save your settings.
4.4. Status
This screen displays the IEEE 802.11g AP's current status and settings. This information is read-only.
This page will auto re-flash every 5 seconds to keep most update information.
LAN section will be displaying all information related on AP, such as the IP address and the current
configuration type.
Wireless section will be displaying information related on the Wireless interface, such as SSID,
Channel, Encryption and statistics of network traffic.
*Click the Refresh button to refresh the AP's status and settings.
User’s Guide 14
4.5 Traffic Log
Traffic Log: The AP can keep logs of all incoming or outgoing traffic for your network traffic. This
feature is disabled by default. To keep activity logs, select Enable.
To keep a permanent record of activity logs as a file on your PC’s hard drive, Log viewer software
must be used. In the Send Log to field, enter the fixed IP address of the PC running the Log viewer
software. The AP will send updated logs to that PC.
To see a temporary log of the AP’s most recent traffic, click the View Log button..
Click the Apply button to save the setting.
User’s Guide 15
4.6 Access Control
Access Control: This function will allow administrator to have access control by enter MAC address
of client stations. When Enable this function, two new options will show up.
Depend on the filtering propose, it can be selected to Deny or Allow.
Fill the client stations MAC list to complete the configuration. The table could store up to 40 different
MAC addresses. Please follow the format that it required when an address is input.
* Click Apply to save your settings.
User’s Guide 16
4.7 Advanced Wireless
Authentication Type:
Auto: Auto is the default authentication algorithm. It will change its authentication type
automatically to fulfill client’s requirement.
Open System: Open System authentication is not required to be successful while a client may
decline to authenticate with any particular other client.
Shared Key: Shared Key is only available if the WEP option is implemented. Shared Key
authentication supports authentication of clients as either a member of those who know a shared
secret key or a member of those who do not. IEEE 802.11 Shared Key authentication accomplishes
this without the need to transmit the secret key in clear. Requiring the use of the WEP privacy
mechanism.
Transmission Rate: The rate of data transmission should be set depending on the speed of your
wireless network. You can select from a range of transmission speeds, or you can select AUTO to
have the AP automatically use the fastest possible data rate and enable the Auto-Fallback feature.
Auto-Fallback will negotiate the best possible connection speed between the AP and a wireless client.
The default setting is AUTO.
Beacon Interval: The Beacon Interval value indicates the frequency interval of the beacon. Enter a
value between 20 and 1000. A beacon is a packet broadcast by the AP to synchronize the wireless
network. The default value is 100.
User’s Guide 17
RTS Threshold: This value should remain at its default setting of 2346. Should you encounter
inconsistent data flow, only minor modifications are recommended. If a network packet is smaller than
the preset RTS threshold size, the RTS/CTS mechanism will not be enabled. The AP sends Request
to Send (RTS) frames to a particular receiving station and negotiates the sending of a data frame.
After receiving an RTS, the wireless station responds with a Clear to Send (CTS) frame to
acknowledge the right to begin transmission.
Fragmentation Threshold: This value specifies the maximum size for a packet before data is
fragmented into multiple packets. It should remain at its default setting of 2346. If you experience a
high packet error rate, you may slightly increase the Fragmentation Threshold. Setting the
Fragmentation Threshold too low may result in poor network performance. Only minor modifications of
this value are recommended.
DTIM Interval: This value indicates the interval of the Delivery Traffic Indication Message (DTIM). A
DTIM field is a countdown field informing clients of the next window for listening to broadcast and
multicast messages. When the Access Point has buffered broadcast or multicast messages for
associated clients, it sends the next DTIM with a DTIM Interval value.
Access Point Clients hear the beacons and awaken to receive the broadcast and multicast messages.
* Click Apply to save your settings.
User’s Guide 18
4.8. SNMP INFO
SNMP INFO: The SNMP screen allows you to customize the Simple Network Management Protocol
(SNMP) settings. SNMP is a popular network monitoring and management protocol.
SNMPv2c To enable the SNMP support feature,
select Enable. Otherwise, select Disable.
Contact In the contact field, enter contact
information for the AP.
Unit Name
and
description
In the Unit Name and description field,
enter the name of the AP or AP
description.
Identification
Physical
Location In the Physical Location field, specify the
area or location where the AP resides.
public You may change the SNMP Community’s
name from its default, public. Then
configure the community’s access as
either Read-Only or Read-Write.
SNMP Community
private You may change the SNMP Community’s
name from its default, public. Then
configure the community’s access as
either Read-Only or Read-Write.
Click Apply to save your settings.
User’s Guide 19
4.9. Upgrade Firmware
To perform the firmware upgrade action, please go to the System section.
Firmware Upgrade: Click the Firmware Upgrade button to load new firmware onto the AP. If the AP
is not experiencing difficulties, then there is no need to download a more recent firmware version,
unless that version has a new feature that you want to use.
Note: When you upgrade the AP’s firmware, you may lose its configuration settings, so make
sure you write down the AP’s settings before you upgrade its firmware.
To upgrade the AP’s firmware:
1. Download the firmware upgrade file from the internet.
2. Extract the firmware upgrade file.
3. Click the Firmware Upgrade button.
4. On the Firmware Upgrade screen, click the Browse button to find the firmware upgrade file.
User’s Guide 20
5. Double-click the firmware upgrade file.
6. Click the Upgrade button, and follow the on-screen instructions.
Note: Do not power off the AP or press the Reset button while the firmware is being upgraded.
User’s Guide 21
5. Troubleshooting
Basic Functions
My Wireless AP will not turn on. No LED’s light up.
Cause:
The power is not connected.
Resolution:
Connect the power adapter to your AP and plug it into the power outlet.
Note: Only use the power adapter provided with your AP. Using any other adapter may damage your
AP.
LAN Connection Problems I can’t access my AP.
Cause:
The unit is not powered on.
There is not a network connection.
The computer you are using does not have a compatible IP Address.
Resolution:
Make sure your AP is powered on.
Make sure that your computer has a compatible IP Address. Be sure that the IP Address used on
your computer is set to the same subnet as the AP. For example, if the AP is set to 192.168.1.250,
change the IP address of your computer to 192.168.1.15 or another unique IP Address that
corresponds to the 192.168.1.X subnet.
Use the Reset button located on the rear of the AP to revert to the default
settings.
I can’t connect to other computers on my LAN.
Cause:
The IP Addresses of the computers are not set correctly.
Network cables are not connected properly.
Windows network settings are not set correctly.
Resolution:
Make sure that each computer has a unique IP Address. And the IP must be in the same subnet as
the AP.
Make sure that the Link LED is on. If it is not, try a different network cable.
Check each computer for correct network settings.
User’s Guide 22
User’s Guide 23
Wireless Troubleshooting
I can’t access the Wireless AP from a wireless network card
Cause:
Out of range.
IP Address is not set correctly.
Resolution:
Make sure that the Mode, SSID, Channel and encryption settings are set the same on each
wireless adapter.
Make sure that your computer is within range and free from any strong electrical devices that may
cause interference.
Check your IP Address to make sure that it is compatible with the Wireless AP.