UNICOM WEP-72104G User Manual
Multi-function wireless router
with 4-Port Fast Ethernet switch
802.11g Wireless
Router
User’s Guide
WEP-72104G
vers.2
NOTE: This guide covers only the most common
situations. Please refer to the full User
Manual on the Router CD-ROM if your
network LAN has any of the following:
• another connected router
• an existing DHCP Server
• PCs using Fixed (Static) IP Addresses
Table of Contents
CHAPTER 1: INTRODUCTION..............................................................................2
Wireless Router Features...................................................................................2
Package Contents .............................................................................................4
Physical Details ................................................................................................5
About the Operation Mode................................................................................7
CHAPTER 2: INSTALLATION ..............................................................................8
Requirements...................................................................................................8
Procedure ........................................................................................................8
CHAPTER 3: SETUP .............................................................................................9
Overview .........................................................................................................9
Configuration Program.....................................................................................9
Setup Wizard................................................................................................. 11
Configuration via Web ...................................................................................14
CHAPTER 4: PC CONFIGURATION .................................................................... 35
Overview .......................................................................................................35
Windows Clients ............................................................................................35
Macintosh Clients........................................................................................... 47
Linux Clients.................................................................................................47
Other Unix Systems ........................................................................................ 47
Wireless Station Configuration ........................................................................48
APPENDIX A TROUBLESHOOTING .......................................................49
Overview .......................................................................................................49
General Problems........................................................................................... 49
Internet Access ...............................................................................................49
Wireless Access...............................................................................................50
APPENDIX B ABOUT WIRELESS LANS.................................................. 51
Modes ...........................................................................................................51
BSS .............................................................................................................. 51
Channels.......................................................................................................51
WEP............................................................................................................. 52
Wireless LAN Configuration ...........................................................................52
APPENDIX C SPECIFICATIONS .........................................................................53
Multi-Function Wireless Router....................................................................... 53
Wireless Interface ...........................................................................................53
Regulatory Approvals..................................................................................... 54
2
Chapter 1: Introduction
Congratulations on the purchase of your new Unicom 802.11g Wireless Router. Unicom’s
Wireless Router is a multi-function device providing the following services:
• Shared Broadband Internet Access for all LAN users.
• 4-Port Switching Hub for 10Base-T or 100Base-T connections.
• Wireless Access Point for 802.11b and 802.11g Wireless Stations.
Wireless Router Features
Unicom's 802.11g Wireless Router incorporates many advanced features, carefully designed to
provide sophisticated functions while being easy to use.
Internet Access Features
• Shared Internet Access. All users on the LAN or WLAN can access the Internet
through the Wireless Router, using only a single external IP Address. The local (invalid)
IP Addresses are hidden from external sources. This process is called NAT (Network
Address Translation).
• DSL & Cable Modem Support. The Wireless Router has a 10/100Base-T Ethernet
port for connecting a DSL or Cable Modem. All popular DSL and Cable Modems are
supported. SingTel RAS and Big Pond (Australia) login support is also included.
• PPPoE, and PPTP. The Internet (WAN port) connection supports PPPoE (PPP over
Ethernet), PPTP (Peer-to-Peer Tunneling Protocol), as well as "Direct Connection" type
services. Unnumbered IP with PPPoE is also supported.
• Fixed or Dynamic IP Address. On the Internet (WAN port) connection, the Wireless
Router supports both Dynamic IP Address (IP Address is allocated on connection) and
Fixed IP Address.
Advanced Internet Functions
• Communication Applications. Support for Internet communication applications, such
as interactive Games, Telephony, and Conferencing applications, which are often difficult
to use when behind a Firewall, is included.
• Special Internet Applications. Applications that use non-standard connections or port
numbers are normally blocked by the Firewall. Application support is provided allowing
such applications to be used normally.
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• Virtual Servers. This feature allows Internet users to access Internet servers on your
LAN. The required setup is quick and easy.
• DDNS Support. DDNS (Dynamic DNS) allows Internet users to connect to Virtual
Servers on your LAN using a domain name, even if your IP address is not fixed.
• DMZ. For each WAN (Internet) IP address allocated to you, only one (1) PC on your
local LAN can be configured to allow unrestricted 2-way communication with Servers or
individual users on the Internet. This provides the ability to run programs that are
incompatible with Firewalls.
• URL Filter. Use the URL Filter to block access to undesirable Web sites by LAN users.
• Internet Access Log. See which Internet connections have been made.
• Access Control. Using the Access Control feature, you can assign LAN users to
different groups, and determine which Internet services are available to each group.
• VPN Pass through Support. PCs with VPN (Virtual Private Networking) software
using PPTP, L2TP and IPSec are transparently supported - no configuration is required.
Wireless Features
• Standards Compliant. The Wireless Router complies with the IEEE802.11g (DSSS)
specifications for Wireless LANs.
• Supports both 802.11b and 802.11g Wireless Stations. The 802.11g standard
provides for backward compatibility with the 802.11b standard, so that both 802.11b and
802.11g Wireless stations can be used simultaneously.
• Speeds to 54Mbps. All speeds up to the 802.11g maximum of 54Mbps are supported.
• WEP support. Support for WEP (Wired Equivalent Privacy) is included. Key sizes of
64 Bit and 128 Bit are supported.
• Wireless MAC Access Control. The Wireless Access Control feature can check the
MAC address (hardware address) of Wireless stations to ensure that only trusted Wireless
Stations can access your LAN.
• Simple Configuration. If the default settings can be changed quickly and easily.
LAN Features
• 4-Port Switching Hub. The Wireless Router incorporates a 4 Port 10/100Base-T
switching hub, making it easy to create or extend your LAN.
• DHCP Server Support. Dynamic Host Configuration Protocol provides a dynamic IP
address to PCs and other devices upon request. The Wireless Router can act as a DHCP
Server for devices on your local LAN and WLAN.
Configuration & Management
• Easy Setup. Use your WEB browser from anywhere on the LAN or WLAN for
configuration.
• Configuration File Upload/Download. Save (download) the configuration data from
the Wireless Router to your PC, and restore (upload) a previously saved configuration file
to the Wireless Router.
• Remote Management. The Wireless Router can be managed from any PC on your
LAN. If an Internet connection exists, the router can also be configured via the Internet.
• Network Diagnostics. The Wireless Router can perform a Ping or DNS lookup.
• UPnP Support. UPnP (Universal Plug and Play) allows automatic discovery and
configuration of the Wireless Router. UPnP is by supported by Windows ME, XP, or
later.
4
Security Features
• Password-protected Configuration. Optional password protection is provided to
prevent unauthorized users from modifying the configuration data and settings.
• Wireless LAN Security. WEP (Wired Equivalent Privacy) is supported, as well as
Wireless access control to prevent unknown wireless stations from accessing your LAN.
• NAT Protection. An intrinsic side effect of NAT (Network Address Translation)
technology is that by allowing all LAN users to share a single IP address, the location and
even the existence of each PC is hidden. From the external viewpoint, there is no network,
only a single device - the Wireless Router.
• Protection against DoS attacks. DoS (Denial of Service) attacks can flood your
Internet connection with invalid packets and connection requests, using so much
bandwidth and so many resources that Internet access becomes unavailable. The Wireless
Router incorporates protection against DoS attacks.
Package Contents
The following items are included:
• The Wireless Router Unit
• Power Adapter
• Quick Installation Guide
• CD-ROM containing the online manual.
If any of the above items are damaged or missing, please contact your dealer immediately.
5
Physical Details
Front-mounted LEDs
Figure 1: Front Panel
Power LED On - Power on.
Off - No power.
Internet LED On - Connection to the Broadband Modem attached to the WAN
(Internet) port is established.
Off - No connection to the Broadband Modem.
Flashing - Data is being transmitted or received via the WAN port.
WLAN LED On - Wireless connection available; Wireless Access Point is ready for
use.
Off - No Wireless connection available.
Flashing - Data is being transmitted or received via the Wireless access
point. Data includes "network traffic" as well as user data.
LAN LEDs For each port, there are 2 LEDs
• Link/Act light
On - Corresponding LAN (hub) port is active.
Off - No active connection on the corresponding LAN (hub) port.
Flashing - Data is being transmitted or received via the
corresponding LAN (hub) port.
• 100 light
On - Corresponding LAN (hub) port is using 100Base-T.
Off - Corresponding LAN (hub) port connection is using 10Base-T,
or no active connection.
6
Rear Panel
Figure 2: Rear Panel
Power port Connect the supplied power adapter here.
10/100Base-T
LAN port
Use standard LAN cables (RJ45 connectors) to connect your PCs to
these ports.
If required, any port can be connected to another hub. Any LAN port
will automatically function as an "Uplink" port when necessary.
Internet port
(10/100Base-T)
Connect the DSL or Cable Modem here. If your modem came with a
cable, use the supplied cable. Otherwise, use a standard LAN cable.
Reset Button This button has two (2) functions:
• Reboot. When pressed within 3~5 seconds, the power LED
lights amber. When released, the Wireless Router will reboot
(restart).
• Clear All Data. This button can also be used to clear ALL data
and restore ALL settings to the factory default values.
To Clear All Data and restore the factory default values:
1. After Power On.
2. Hold the Reset Button down.
3. Keep holding the Reset Button more than 5 seconds, until the
Amber LED has flashed.
4. Release the Reset Button. The Wireless Router is now using the
factory default values.
7
About the Operation Mode
AP Mode
When acting as an access point, this device connects all the remote stations (Desktop/notebook
PC with wireless network adapter) to a wired network. All stations can have Internet access
provided the Access Point has an Internet connection.
Bridge Mode
The WDS (Wireless Distributed System) function lets this access point act as a wireless LAN
access point and repeater at the same time. Users can use this feature to build up a large
wireless network in a large space like airports, hotels and schools …etc. This feature is also
useful when users want to bridge networks between buildings where it is impossible to deploy
network cable connections between these buildings.
Repeater
Refer to the illustration below. While acting as a Bridge, AP1 (Station 1) and AP2 (Station 2)
can communicate with each other through wireless interface (with WDS). Thus Station 1 can
communicate with Station 2 and both Station 1 and Station 2 are able to access the Internet
even if only one of the stations has the Internet connection.
To set the operation mode to Bridge, please go to “Wireless Basic Settings”, in the
“Mode” field click the down arrow to select AP mode. And go to “Wireless WDS
Settings” to enable WDS.
8
Chapter 2: Installation
Requirements
• Network cables. Use standard 10/100Base-T network (UTP) cables with RJ45 connectors.
• TCP/IP protocol must be installed on all PCs.
• For Internet Access, an Internet Access account with an ISP and either a DSL or Cable
modem (for WAN port usage)
• To use the Wireless Access Point, all Wireless devices must be compliant with the
IEEE802.11b or IEEE802.11g specifications.
Procedure
1. Choose an Installation Site
• Select a suitable place on the network to install the Wireless Router.
Ensure both the Wireless Router and the DSL/Cable modem are powered OFF.
2. Connect LAN Cables
• Use standard LAN cables to connect PCs to the Switching Hub ports on the Wireless
Router. Both 10Base-T and 100Base-T connections can be used simultaneously.
• If required, connect any port to a normal port on another Hub, using a standard LAN
cable. Thanks to MDI/MDIX, any LAN port on the Wireless Router will automatically
function as an "Uplink" port when required.
3. Connect WAN Cable
• Connect the DSL or Cable modem to the WAN port on the Wireless Router. Use the cable
supplied with your DSL/Cable modem. If no cable is supplied, use a standard RJ45 cable.
4. Power Up
• Power on the Cable or DSL modem.
• Connect the supplied power adapter to the Wireless Router and power up.
Use only the power adapter provided. Using a different one may cause hardware damage
5. Check the LEDs
• The Power LED should be ON.
• The Status LED should flash, then turn off. If it stays on, there is a hardware error.
• For each LAN (PC) connection, the LAN Link/Act LED should be ON (provided the PC
is also ON.)
• The WAN LED should be ON.
• The WLAN LED should be ON
For more information, refer to Front-mounted LEDs in Chapter 1.
9
Chapter 3: Setup
Overview
This chapter describes the setup procedure for:
• Internet Access
• LAN configuration
• Wireless setup
• Assigning a Password to protect the configuration data.
PCs on your local LAN may also require configuration. For details, see Chapter 4 - PC
Configuration.
Other configuration may also be required, depending on which features and functions of the
Wireless Router you wish to use. Use the table below to locate detailed instructions for the
required functions.
Configuration Program
The Wireless Router contains an HTTP server. This enables you to connect to it and configure
it using your Web Browser. Your Browser must support JavaScript.
The configuration program has been tested on the following browsers:
• Netscape v4.08 or later
• Internet Explorer v4 or later
Preparation
Before attempting to configure the Wireless Router, please ensure that:
• Your PC can establish a physical connection to the Wireless Router. The PC and the
Wireless Router must be directly connected (using the Hub ports on the Wireless Router)
or on the same LAN segment.
• The Wireless Router must be installed and powered ON.
• If the Wireless Router's default IP Address (192.168.1.254) is already used by another
device, the other device must be turned OFF until the Wireless Router is allocated a new
IP Address during configuration.
Using UPnP
If your Windows system supports UPnP, an icon for the Wireless Router will appear in the
system tray notifying you that a new network device has been found and offering to create a
new desktop shortcut to the newly-discovered device.
• Unless you intend to change the IP Address of the Wireless Router, you can accept the
desktop shortcut.
• Whether you accept the desktop shortcut or not, you can always find UPnP devices in My
Network Places (previously called Network Neighborhood).
• Double-click the icon for the Wireless Router (either on the Desktop or in My Network
Places) to start the configuration. Refer to the following section, Setup Wizard, for details
of the initial configuration process.
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Using your Web Browser
To establish a connection from your PC to the Wireless Router:
1. After installing the Wireless Router in your LAN, start your PC. If your PC is already
running, restart it.
2. Start your WEB browser.
3. In the Address box, enter "HTTP://" and the IP Address of the Wireless Router. The
Wireless Router's default IP Address is as follows:
HTTP://1 92.16 8.1.254
No username and password are required for the first login (default setting). However, you can
assign a set of username and password for future security. See the Password Setup section later
in this chapter for details.
If you can't connect
If the Wireless Router does not respond, check the following:
• The Wireless Router is properly installed, LAN connection is OK, and it is
powered ON. You can test the connection by using the "Ping" command:
• Open the MS-DOS window or command prompt window.
• Enter the command:
ping 192.168.1.254
If no response is received, either the connection is not working, or your
PC's IP address is not compatible with the Wireless Router's IP Address.
(See next item.)
• If your PC is using a fixed IP Address, its IP Address must be within the
range 192.168.1.1 to 192.168.1.253 to be compatible with the Wireless
Router's default IP Address of 192.168.1.254. Also, the Network Mask must
be set to 255.255.255.0. See Chapter 4 - PC Configuration for details on
checking your PC's TCP/IP settings.
• Ensure that your PC and the Wireless Router are on the same network
segment. (If you don't have a router, this must be the case.)
• Ensure you are using the wired LAN interface. The Wireless interface can only
be used if its configuration matches your PC's wireless settings.
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Setup Wizard
The Setup Wizard provides brief and basic configuration of this device, you may enter each
screen to change the default settings. For more detailed settings, you may refer to the
“Configuration via Web” section.
1. View the listed configuration items and click Next to continue.
2. Configure Time Zone and NTP server by enabling NTP client update. Click Next to
continue.
3. Configure the parameters for area network (If you want to change the default parameters) by
entering New IP Address and Subnet Mask.
4. Change the access method (Static IP, DHCP, PPPoE or PPTP) by selecting from the pull-
down menu. Click Next to continue.
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5. Configure the parameters for wireless LAN clients. Check the “Disable Access Point” to
disable the settings of this screen. Click Next to continue.
6. Manage your wireless network security by selecting the encryption type (None, WEP and
WPA (TKIP)) from the pull-down menu. Click Finish to exit Set Wizard screen.
13
Common Connection Types
Cable Modems
Type Details ISP Data required
Dynamic
IP Address
Your IP Address is allocated
automatically when you
connect to you ISP.
Usually, none. However some
ISP's may require you to use a
particular Hostname, Domain
name, or MAC (physical) address.
Static
(Fixed)
IP Address
Your ISP allocates a
permanent IP Address to you.
IP Address allocated to you.
Some ISP's may also require you
to use a particular Hostname,
Domain name, or MAC (physical)
address.
DSL Modems
Type Details ISP Data required
Dynamic
IP Address
Your IP Address is allocated
automatically when you
connect to you ISP.
None.
Static (Fixed)
IP Address
Your ISP allocates a
permanent IP Address to you.
Permanent IP Address allocated.
PPPoE You connect to the ISP only
when required. The IP address
is usually allocated
automatically.
User name and password.
PPTP Mainly used in Europe.
You connect to the ISP only
when required. The IP address
is usually allocated
automatically but may be
Static (Fixed).
• PPTP Server IP Address.
• User name and password.
• IP Address allocated to
you, if Static (Fixed).
Other Modems (e.g. Broadband Wireless)
Type Details ISP Data required
Dynamic
IP Address
Your IP Address is allocated
automatically when you connect
to you ISP.
None.
Static (Fixed)
IP Address
Your ISP allocates a permanent
IP Address to you.
Permanent IP Address
allocated.
14
Configuration via Web
LAN Interface Setup
IP Address Default: 192.168.1.254 (this is the local address of this Router)
Subnet Mask Default: 255.255.255.0
DHCP
Disable: Disables this Router from distributing IP Addresses
Server: Enables this Router to distribute IP Addresses (DHCP
Server). The following field will be activated to enter the
starting IP Address
DHCP Client Range The starting address of this local IP network address pool.
The pool is a piece of continuous IP address segment. Keep the
default value “192.168.1.1” It should work in most cases.
• Maximum: 253. Default value 253 should work
in most cases.
Note: If “Continuous IP address poll starts” is set at
192.168.1.1 and the “Number of IP address in pool” is 253,
the device will distribute IP addresses from 192.168.1.1 to
192.168.1.253 to all the computers in the network that request
IP addresses from DHCP server (Router)
Show Client Click to show Active DHCP Client table.
Save
After completing the settings on this page, click Save to save
the settings.
Reset
Click Reset to restore to default values.
15
Password Setup
New Password Maximum input is 36 alphanumeric characters (case sensitive)
Confirmed Password Key in the password again to confirm.
Save
After completing the settings on this page, click Save to save
the settings.
Reset
Click Reset to clear settings.
Status
Internet Shows the Internet connection status
LAN Shows the Local area network information
System Briefly shows the device name and firmware information
Connection Details Click to show more details of the internet connection
System Data Click to show the detailed information of the system
Refresh Screen Click to refresh all the data
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