LINKSYS WRT54GCV2 Compact Wireless-G Broadband Router User Manual Book

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Compact Wireless-G Broadband Router
Copyright and Trademarks
Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco
Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2006 Cisco Systems, Inc. All
rights reserved. Other brands and product names are trademarks or registered trademarks of their respective
holders.
WARNING: This product contains chemicals, including lead, known
to the State of California to cause cancer, and birth defects or other
reproductive harm. Wash hands after handling.
How to Use This User Guide
This User Guide has been designed to make understanding networking with the Compact Wireless-G Broadband
Router easier than ever. Look for the following items when reading this User Guide:
This checkmark means there is a note of interest and is
something you should pay special attention to while using
the Compact Wireless-G Broadband Router.
This exclamation point means there is a caution or warning
and is something that could damage your property or the
Compact Wireless-G Broadband Router.
This question mark provides you with a reminder about
something you might need to do while using the
Compact Wireless-G Broadband Router.
In addition to these symbols, there are definitions for technical terms that are presented like this:
word: definition.
Also, each figure (diagram, screenshot, or other image) is provided with a figure number and description, like
this:
Figure 0-1: Sample Figure Description
Figure numbers and descriptions can also be found in the “List of Figures” section in the “Table of Contents”.
WRT54GC_V2-UG-60310NC JL
Compact Wireless-G Broadband Router
Table of Contents
Chapter 1: Introduction
Welcome
What’s in this Guide?
Chapter 2: Planning Your Wireless Network
Network Topology
Ad-Hoc versus Infrastructure Mode
Network Layout
Chapter 3: Getting to Know the Compact Wireless-G Broadband Router
The Back Panel
The Front Panel
The Bottom Panel
Chapter 4: Connecting the Compact Wireless-G Broadband Router
Overview
Hardware Installation for Connection to your Broadband Modem
Hardware Installation for Connection to Another Router
11
Chapter 5: Configuring the Compact Wireless-G Broadband Router
13
Overview
How to Access the Web-based Utility
The Setup Tab - Basic Setup
The Setup Tab - DDNS
The Setup Tab - MAC Address Clone
The Setup Tab - Advanced Routing
The Wireless Tab - Basic Wireless Settings
The Wireless Tab - Wireless Security
The Wireless Tab - Wireless MAC Filter
The Wireless Tab - Advanced Wireless Settings
The Security Tab - Firewall
The Security Tab - VPN Passthrough
The Access Restrictions Tab - Internet Access Policy
The Applications and Gaming Tab - Port Range Forwarding
The Applications & Gaming Tab - Port Range Triggering
The Applications and Gaming Tab - DMZ
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Compact Wireless-G Broadband Router
The Administration Tab - Management
The Administration Tab - Log
The Administration Tab - Diagnostics
The Administration Tab - Factory Defaults
The Administration Tab - Firmware Upgrade
The Status Tab - Router
The Status Tab - Local Network
The Status Tab - Wireless
Appendix A: Troubleshooting
Common Problems and Solutions
Frequently Asked Questions
Appendix B: Wireless Security
Security Precautions
Security Threats Facing Wireless Networks
Appendix C: Upgrading Firmware
Appendix D: Windows Help
Appendix E: Finding the MAC Address and IP Address for Your
Ethernet Adapter
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Windows 98SE or Me Instructions
Windows 2000 or XP Instructions
For the Router’s Web-based Utility
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Appendix F: Glossary
Appendix G: Specifications
Appendix H: Warranty Information
Appendix I: Regulatory Information
Appendix J: Contact Information
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Compact Wireless-G Broadband Router
List of Figures
Figure 3-1: The Router’s Back Panel
Figure 3-2: The Router’s Front Panel
Figure 3-3: The Router’s Bottom Panel
Figure 4-1: Connecting your Broadband Modem
Figure 4-2: Connecting Your Network Devices
Figure 4-3: Connecting the Power
Figure 4-4: Diagram for Connection to Another Router
Figure 4-5: Connecting Another Router
Figure 4-6: Connecting Your Network Devices
Figure 4-7: Connecting the Power
Figure 5-1: Router’s IP Address
Figure 5-2: Router Login Screen
Figure 5-3: Setup Tab - Basic Setup
Figure 5-4: Static IP Connection Type
Figure 5-5: PPPoE Connection Type
Figure 5-6: PPTP Connection Type
Figure 5-7: Static DHCP Client List
Figure 5-8: DHCP Client Table
Figure 5-9: DynDNS.org
Figure 5-10: TZO.com
Figure 5-11: Setup Tab - MAC Address Clone
Figure 5-12: Setup Tab - Advanced Routing (Gateway)
Figure 5-13: Setup Tab - Advanced Routing (Router)
Figure 5-14: Wireless Tab - Basic Wireless Settings
Figure 5-15: Wireless Tab - Wireless Security (WEP)
Figure 5-16: Wireless Tab - Wireless Security (WPA Personal)
Figure 5-17: Wireless Tab - Wireless Security (WPA2 Personal)
Figure 5-18: Wireless Tab - Wireless Security (WPA2 Mixed Mode)
Figure 5-19: Wireless Tab - Wireless MAC Filter
Figure 5-20: Wireless Tab - Wireless Client List
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Compact Wireless-G Broadband Router
Figure 5-21: Wireless Tab - Advanced Wireless Settings
Figure 5-22: Security Tab - Firewall
Figure 5-23: Security Tab - VPN Passthrough
Figure 5-24: Access Restrictions Tab - Internet Access Policy
Figure 5-25: Access Restrictions Tab - Summary
Figure 5-26: Access Restrictions Tab - Internet Access PCs List
Figure 5-27: Applications and Gaming Tab - Port Range Forwarding
Figure 5-28: Applications and Gaming Tab - Port Triggering
Figure 5-29: Applications and Gaming Tab - DMZ
Figure 5-30: Administration Tab - Management
Figure 5-31: Administration Tab - Log
Figure 5-32: Incoming Log
Figure 5-33: Administration Tab - Diagnostics
Figure 5-34: Ping Test
Figure 5-35: Traceroute Test
Figure 5-36: Administration Tab - Factory Defaults
Figure 5-37: Administration Tab - Firmware Upgrade
Figure 5-38: Status Tab - Router
Figure 5-39: Status Tab - Local Network
Figure 5-40: DHCP Client Table
Figure 5-41: Status Tab - Wireless
Figure C-1: Administration Tab - Firmware Upgrade
Figure E-1: IP Configuration Screen
Figure E-2: MAC Address/Adapter Address
Figure E-3: MAC Address/Physical Address
Figure E-4: Wireless MAC Filter List
Figure E-5: MAC Address Clone
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Compact Wireless-G Broadband Router
Chapter 1: Introduction
Welcome
Thank you for choosing the Linksys Compact Wireless-G Broadband Router. The Compact Wireless-G Broadband
Router will allow you to network wirelessly better than ever, sharing Internet access, files and fun, easily and
securely.
How does the Compact Wireless-G Broadband Router do all of this? A router is a device that allows access to an
Internet connection over a network. With the Compact Wireless-G Broadband Router, this access can be shared
over the four switched ports or via the wireless broadcast at either up to 11Mbps for Wireless-B or up to 54Mbps
for Wireless-G. In addition, the whole network is protected by NAT technology. For wireless networking, you also
have a choice of wireless security methods. Additional security features, as well as configuration options, are
accessible through the easy-to-use, browser-based utility.
But what does all of this mean?
Networks are useful tools for sharing computer resources. You can access one printer from different computers
and access data located on another computer's hard drive. Networks are even used for playing multiplayer video
games. So, networks are not only useful in homes and offices, they can also be fun.
PCs on a wired network create a LAN, or Local Area Network. They are connected with Ethernet cables, which is
why the network is called “wired”.
PCs equipped with wireless cards or adapters can communicate without cumbersome cables. By sharing the
same wireless settings, within their transmission radius, they form a wireless network. This is sometimes called
a WLAN, or Wireless Local Area Network. The Compact Wireless-G Broadband Router bridges wireless networks
of 802.11a, 802.11b, and 802.11g standards and wired networks, allowing them to communicate with each other.
With your wired and wireless networks connected to each other and the Internet, you can now share files and
Internet access—and even play games. All the while, the Compact Wireless-G Broadband Router protects your
networks from unauthorized and unwelcome users.
Linksys recommends using the Setup CD-ROM for first-time installation of the Router. If you do not wish to run
the Setup Wizard on the Setup CD-ROM, then use the instructions in this Guide to help you connect the
Compact Wireless-G Broadband Router, set it up, and configure it to bridge your different networks. These
instructions should be all you need to get the most out of the Compact Wireless-G Broadband Router.
Chapter 1: Introduction
Welcome
nat (network address translation): NAT
technology translated IP addresses of a
local area network to a different IP address
for the Internet.
mbps: one million bits per second; a unit of
measurement for data transmission.
browser: an application program that
provides a way to look at and interact with all
the information on the World Wide Web.
lan (local area network): the computers and
networking products that make up the network
in your home or office.
ethernet: an IEEE standard network protocol that
specifies how data is placed on and retrieved from
a common transmission medium.
802.11b: an IEEE wireless networking standard
that specifies a maximum data transfer rate of
11Mbps and an operating frequency of 2.4GHz.
802.11g: an IEEE wireless networking standard
that specifies a maximum data transfer rate of
54Mbps, an operating frequency of 2.4GHz, and
backward compatibility with 802.11b devices.
Compact Wireless-G Broadband Router
What’s in this Guide?
This user guide covers the steps for setting up and using the Compact Wireless-G Broadband Router.
• Chapter 1: Introduction
This chapter describes the Router’s applications and this User Guide.
• Chapter 2: Planning Your Wireless Network
This chapter describes the basics of wireless networking.
• Chapter 3: Getting to Know the Compact Wireless-G Broadband Router
This chapter describes the physical features of the Router.
• Chapter 4: Connecting the Compact Wireless-G Broadband Router
This chapter instructs you on how to connect the Router to your network.
• Chapter 5: Configuring the Compact Wireless-G Broadband Router
This chapter explains how to use the Web-Based Utility to configure the settings on the Compact Wireless-G
Broadband Router.
• Appendix A: Troubleshooting
This appendix describes some problems and solutions, as well as frequently asked questions, regarding
installation and use of the Compact Wireless-G Broadband Router.
• Appendix B: Wireless Security
This appendix explains the risks of wireless networking and some solutions to reduce the risks.
• Appendix C: Upgrading Firmware
This appendix instructs you on how to upgrade the firmware on the Router should you need to do so.
• Appendix D: Windows Help
This appendix describes how you can use Windows Help for instructions about networking, such as installing
the TCP/IP protocol.
• Appendix E: Finding the MAC Address and IP Address for your Ethernet Adapter.
This appendix describes how to find the MAC address for your computer’s Ethernet adapter so you can use
the MAC filtering and/or MAC address cloning feature of the Router.
• Appendix F: Glossary
This appendix gives a brief glossary of terms frequently used in networking.
Chapter 1: Introduction
What’s in this Guide?
Compact Wireless-G Broadband Router
• Appendix G: Specifications
This appendix provides the technical specifications for the Router.
• Appendix H: Warranty Information
This appendix supplies the warranty information for the Router.
• Appendix I: Regulatory Information
This appendix supplies the regulatory information regarding the Router.
• Appendix J: Contact Information
This appendix provides contact information for a variety of Linksys resources, including Technical Support.
Chapter 1: Introduction
What’s in this Guide?
Compact Wireless-G Broadband Router
Chapter 2: Planning Your Wireless Network
Network Topology
A wireless local area network (WLAN) is exactly like a regular local area network (LAN), except that each
computer in the WLAN uses a wireless device to connect to the network. Computers in a WLAN share the same
frequency channel and SSID, which is an identification name shared by the wireless devices belonging to the
same wireless network.
network: a series of computers or devices
connected for the purpose of data sharing,
storage, and/or transmission between users.
ssid: your wireless network’s name.
Ad-Hoc versus Infrastructure Mode
Unlike wired networks, wireless networks have two different modes in which they may be set up: infrastructure
and ad-hoc. An infrastructure configuration is a WLAN and wired LAN communicating to each other through an
access point. An ad-hoc configuration is wireless-equipped computers communicating directly with each other.
Choosing between these two modes depends on whether or not the wireless network needs to share data or
peripherals with a wired network or not.
If the computers on the wireless network need to be accessible by a wired network or need to share a peripheral,
such as a printer, with the wired network computers, the wireless network should be set up in Infrastructure
mode. The basis of Infrastructure mode centers around a wireless router or an access point, such as the Compact
Wireless-G Broadband Router, which serves as the main point of communications in a wireless network. The
Router transmits data to PCs equipped with wireless network adapters, which can roam within a certain radial
range of the Router. You can arrange the Router and multiple access points to work in succession to extend the
roaming range, and you can set up your wireless network to communicate with your Ethernet hardware as well.
If the wireless network is relatively small and needs to share resources only with the other computers on the
wireless network, then the Ad-Hoc mode can be used. Ad-Hoc mode allows computers equipped with wireless
transmitters and receivers to communicate directly with each other, eliminating the need for a wireless router or
access point. The drawback of this mode is that in Ad-Hoc mode, wireless-equipped computers are not able to
communicate with computers on a wired network. And, of course, communication between the wirelessequipped computers is limited by the distance and interference directly between them.
ad-hoc: a group of wireless devices
communicating directly to each other
(peer-to-peer) without the use of an
access point.
infrastructure: a wireless network
that is bridged to a wired network via
an access point.
adapter: a device that adds
network functionality to your PC.
ethernet: IEEE standard network protocol that
specifies how data is placed on and retrieved
from a common transmission medium.
access point: a device that allows wirelessequipped computers and other devices to
communicate with a wired network. Also used
to expand the range of a wireless network.
Network Layout
The Compact Wireless-G Broadband Router has been specifically designed for use with your 802.11b and
802.11g products. Now, products using these standards can communicate with each other.
Chapter 2: Planning Your Wireless Network
Network Topology
Compact Wireless-G Broadband Router
The Compact Wireless-G Broadband Router is compatible with all 802.11b and 802.11g adapters, such as the
Notebook Adapters for your laptop computers, PCI Adapters for your desktop PCs, and USB Adapters when you
want to enjoy USB connectivity. The Router will also communicate with the Wireless PrintServer and Wireless
Ethernet Bridges.
When you wish to connect your wireless network with your wired network, you can use the Compact Wireless-G
Broadband Router’s four LAN ports. To add more ports, any of the Compact Wireless-G Broadband Router's LAN
ports can be connected to any of Linksys's switches.
With these, and many other, Linksys products, your networking options are limitless. Go to the Linksys website at
www.linksys.com for more information about products that work with the Compact Wireless-G Broadband Router.
Chapter 2: Planning Your Wireless Network
Network Layout
Compact Wireless-G Broadband Router
Chapter 3: Getting to Know the Compact Wireless-G
Broadband Router
The Back Panel
The Router’s ports are located on the back panel of the Router.
port: the connection point on a computer or networking
device used for plugging in cables or adapters.
Figure 3-1: The Router’s Back Panel
ETHERNET 1, 2, 3, 4 These ports (1, 2, 3, 4) connect the Router to your networked PCs and other Ethernet
network devices.
INTERNET
The Internet port is where you will connect your broadband Internet connection.
POWER
The POWER port is where you will connect the power adapter.
Chapter 3: Getting to Know the Compact Wireless-G Broadband Router
The Back Panel
broadband: an always-on, fast Internet connection.
Compact Wireless-G Broadband Router
The Front Panel
The Router’s LEDs, which indicate the status of the Router and network activities, are located on the front panel.
Figure 3-2: The Router’s Front Panel
ETHERNET 1-4
Green. These numbered LEDs, corresponding with the numbered ports on the Router’s back
panel, serve two purposes. If the LED is continuously lit, the Router is connected to a device
through that port. A flashing LED indicates network activity over that port.
WIRELESS
Green. The WIRELESS LED flashes when there is a successful wireless connection.
INTERNET
Green. The INTERNET LED lights up when there is a connection through the Internet port.
POWER
Green. The POWER LED lights up and will stay on while the Router is powered on. When the
Router goes through its self-diagnostic mode during every boot-up, this LED will flash. When
the diagnostic is complete, the LED will be solidly lit.
Chapter 3: Getting to Know the Compact Wireless-G Broadband Router
The Front Panel
Compact Wireless-G Broadband Router
The Bottom Panel
The Router’s Reset button is located on the bottom panel. To access the button, turn the stand perpendicular to
the Router. Use a sharp object like a pencil to push in the button.
STAND
RESET BUTTON
Figure 3-3: The Router’s Bottom Panel
RESET Button
There are two ways to reset the Router's factory defaults. Either press the RESET button,
for approximately eight seconds, or restore the defaults from the Administration tab Factory Defaults in the Router's Web-based Utility.
Chapter 3: Getting to Know the Compact Wireless-G Broadband Router
The Bottom Panel
IMPORTANT: If you reset the Router, all of your
settings, including Internet connection, wireless,
and security, will be deleted and replaced with the
factory defaults. Do not reset the Router if you
want to retain these settings.
Compact Wireless-G Broadband Router
Chapter 4: Connecting the Compact Wireless-G Broadband
Router
Overview
Linksys recommends using the Setup Wizard on the Setup CD-ROM for first-time installation of the Router. For
advanced users, you may follow the instructions in this chapter, and then configure the Router through its Webbased Utility (refer to “Chapter 5: Configuring the Compact Wireless-G Broadband Router”).
NOTE: For first-time installation of the Router,
Linksys recommends using the Setup Wizard on
the Setup CD-ROM.
This chapter includes two sets of instructions. If the Compact Wireless-G Broadband Router will be the only router
in your network, follow the instructions in “Hardware Installation for Connection to Your Broadband Modem.” If
you want to install the Compact Wireless-G Broadband Router behind another router in your network, then follow
the instructions in “Hardware Installation for Connection to Another Router.”
Hardware Installation for Connection to your Broadband Modem
1. Power down your network devices.
2. Locate an optimum location for the Router. The best place for the Router is usually at the center of your
wireless network, with line of sight to all of your wireless devices. Normally, the higher you place the
antenna, the better the performance will be.
3. Connect a standard Ethernet network cable from the Router’s Internet port to your broadband modem.
Figure 4-1: Connecting your Broadband Modem
Chapter 4: Connecting the Compact Wireless-G Broadband Router
Overview
Compact Wireless-G Broadband Router
4. Connect a standard Ethernet network cable from one of the Router’s numbered ports to your network PC or
Ethernet device.
Figure 4-2: Connecting Your Network Devices
5. Connect the AC power adapter to the Router's Power port. Then connect the other end to an electrical outlet.
Only use the power adapter supplied with the Router. Use of a different adapter can cause product damage.
IMPORTANT: Make sure you use the power
adapter that is supplied with the Router. Use of a
different power adapter could damage the Router.
Figure 4-3: Connecting the Power
Now that the hardware installation is complete, proceed to “Chapter 5: Configuring the Compact
Wireless-G Broadband Router.”
Chapter 4: Connecting the Compact Wireless-G Broadband Router
Hardware Installation for Connection to your Broadband Modem
10
Compact Wireless-G Broadband Router
Hardware Installation for Connection to Another Router
Before you install the Router, you must change the default IP address of the other router. This is mandatory
because both routers may be set to the same IP address by default. If you do not change the other router’s default
IP address, then you may not be able to set up the Router.
First, make sure the Router is NOT connected to your network. Then follow these instructions:
1. To access the other router’s Web-based Utility, launch Internet Explorer or Netscape Navigator, and enter the
other router’s default IP address, 192.168.1.1, in the Address field. Then press Enter.
NOTE: Steps 1-4 are instructions for a typical
Linksys router; however, if you are using a nonLinksys router, refer to the other router’s
documentation for instructions on how to change its
local IP address to 192.168.2.1.
2. A password request page will appear. Leave the User Name field blank. In the Password field, enter the
password you have set (the default password is admin). Then click the OK button.
3. The first screen that appears will display the Setup tab. In the Network Setup section, there is a setting called
Local IP Address (also called Router IP), which is set to 192.168.1.1. Change this to 192.168.2.1.
Internet
Broadband
Modem
4. Click the Save Settings button to save your change, and then exit the Web-based Utility.
5. Power down your network devices. Now you will begin the hardware installation of the Router.
6. Locate an optimum location for the Router. The best place for the Router is usually at the center of your
wireless network, with line of sight to all of your wireless devices. Normally, the higher you place the
antenna, the better the performance will be.
Router
7. Connect a standard Ethernet network cable to the Router’s Internet port. Then, connect the other end of the
Ethernet cable to one of the numbered Ethernet ports on your other router.
Compact
Wireless-G
Broadband
Router
Multiple
PCs
Figure 4-4: Diagram for Connection to Another Router
Figure 4-5: Connecting Another Router
Chapter 4: Connecting the Compact Wireless-G Broadband Router
Hardware Installation for Connection to Another Router
11
Compact Wireless-G Broadband Router
8. Decide which network computers or Ethernet devices you want to connect to the Router.
Disconnect the selected computers or devices from the other router, and then connect them to the Router’s
numbered ports using standard Ethernet network cabling.
Figure 4-6: Connecting Your Network Devices
9. Connect the AC power adapter to the Router's Power port and the other end into an electrical outlet. Only use
the power adapter supplied with the Router. Use of a different adapter may result in product damage.
IMPORTANT: Make sure you use the power
adapter that is supplied with the Router. Use of a
different power adapter could damage the Router.
Figure 4-7: Connecting the Power
Now that the hardware installation is complete, proceed to “Chapter 5: Configuring the Compact
Wireless-G Broadband Router.”
Chapter 4: Connecting the Compact Wireless-G Broadband Router
Hardware Installation for Connection to Another Router
12
Compact Wireless-G Broadband Router
Chapter 5: Configuring the Compact Wireless-G Broadband
Router
Overview
Linksys recommends using the Setup Wizard on the Setup CD-ROM for first-time installation of the Router. For
advanced users, you may follow the instructions in the previous chapter, “Chapter 4: Connecting the Compact
Wireless-G Broadband Router”, and then configure the Router through its Web-based Utility.
This chapter will describe each web page in the Utility and each page’s key functions. The utility can be accessed
via your web browser through use of a computer connected to the Router. For a basic network setup, most users
will use these two screens of the Utility:
• Basic Setup. On the Basic Setup screen, enter the settings provided by your ISP.
NOTE: For first-time installation of the Router,
Linksys recommends using the Setup Wizard on
the Setup CD-ROM.
HAVE YOU: Enabled TCP/IP on your PCs? PCs
communicate over the network with this protocol.
Refer to “Appendix D: Windows Help” for more
information on TCP/IP.
• Management. Click the Administration tab and then the Management tab. The Router’s default password is
admin. To secure the Router, change the Password from its default.
There are seven main tabs: Setup, Wireless, Security, Access Restrictions, Applications & Gaming, Administration,
and Status. Additional tabs will be available after you click one of the main tabs.
Make the necessary changes through the Web-based Utility. On each screen, click the Save Settings button to
apply your changes or Cancel Changes to cancel your changes. Help information is shown on the right-hand side
of the screen.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
Overview
13
Compact Wireless-G Broadband Router
How to Access the Web-based Utility
To access the Web-based Utility, launch Internet Explorer or Netscape Navigator, and enter the Router’s default IP
address, 192.168.1.1, in the Address field. Then press Enter.
Figure 5-1: Router’s IP Address
A password request page will appear. Leave the User Name field blank. The first time you open the Web-based
Utility, use the default password admin. (You can set a new password from the Administration tab’s Management
screen.) Then click the OK button.
The Setup Tab - Basic Setup
The first screen that appears displays the Setup tab. This allows you to change the Router's general settings.
Figure 5-2: Router Login Screen
Internet Setup
The Internet Setup section configures the Router to your Internet connection. Most of this information can be
obtained from your ISP.
Internet Connection Type
ip (internet protocol): a protocol used to send data
over a network.
ip address: the address used to identify a computer
or device on a network.
Choose the type of Internet connection your ISP provides from the drop-down menu.
• Automatic Configuration - DHCP. By default, the Router’s Internet Connection Type is set to Automatic
Configuration - DHCP, which should be kept only if your ISP supports DHCP or you are connecting through a
dynamic IP address.
Figure 5-3: Setup Tab - Basic Setup
Chapter 5: Configuring the Compact Wireless-G Broadband Router
How to Access the Web-based Utility
14
Compact Wireless-G Broadband Router
• Static IP. If you are required to use a permanent IP address to connect to the Internet, select Static IP.
Internet IP Address. This is the Router’s IP address, when seen from the Internet. Your ISP will provide you
with the IP Address you need to specify here.
Subnet Mask. This is the Router’s Subnet Mask, as seen by users on the Internet (including your ISP). Your ISP
will provide you with the Subnet Mask.
Default Gateway. Your ISP will provide you with the Gateway Address, which is the ISP server’s IP address.
DNS (1-3). Your ISP will provide you with at least one DNS (Domain Name System) Server IP Address.
• PPPoE. Some DSL-based ISPs use PPPoE (Point-to-Point Protocol over Ethernet) to establish Internet
connections. If you are connected to the Internet through a DSL line, check with your ISP to see if they use
PPPoE. If they do, you will have to enable PPPoE.
User Name and Password. Enter the User Name and Password provided by your ISP.
Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has
been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated
due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as
soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the radio
button. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet
connection terminates.
Figure 5-4: Static IP Connection Type
static ip address: a fixed address
assigned to a computer or device
connected to a network.
subnet mask: an address code that
determines the size of the network.
default gateway: a device that forwards
Internet traffic from your local area network.
Keep Alive Option: Redial Period. If you select this option, the Router will periodically check your Internet
connection. If you are disconnected, then the Router will automatically re-establish your connection. To use
this option, click the radio button next to Keep Alive. In the Redial Period field, you specify how often you want
the Router to check the Internet connection. The default Redial Period is 30 seconds.
•
PPTP. Point-to-Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe only.
Specify Internet IP Address. This is the Router’s IP address, as seen from the Internet. Your ISP will provide
you with the IP Address you need to specify here.
Subnet Mask. This is the Router’s Subnet Mask, as seen by users on the Internet (including your ISP). Your ISP
will provide you with the Subnet Mask.
Figure 5-5: PPPoE Connection Type
pppoe: a type of broadband connection that
provides authentication (username and
password) in addition to data transport
Gateway. Your ISP will provide you with the Gateway Address.
User Name and Password. Enter the User Name and Password provided by your ISP.
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The Setup Tab - Basic Setup
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Connect on Demand: Max Idle Time. You can configure the Router to cut the Internet connection after it has
been inactive for a specified period of time (Max Idle Time). If your Internet connection has been terminated
due to inactivity, Connect on Demand enables the Router to automatically re-establish your connection as
soon as you attempt to access the Internet again. If you wish to activate Connect on Demand, click the radio
button. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet
connection terminates.
Keep Alive Option: Redial Period. If you select this option, the Router will periodically check your Internet
connection. If you are disconnected, then the Router will automatically re-establish your connection. To use
this option, click the radio button next to Keep Alive. In the Redial Period field, you specify how often you want
the Router to check the Internet connection. The default Redial Period is 30 seconds.
Optional Settings
Figure 5-6: PPTP Connection Type
Some of these settings may be required by your ISP. Verify with your ISP before making any changes.
Host Name and Domain Name. These fields allow you to supply a host and domain name for the Router. Some
ISPs, usually cable ISPs, require these names as identification. You may have to check with your ISP to see if your
broadband Internet service has been configured with a host and domain name. In most cases, leaving these
fields blank will work.
MTU. MTU is the Maximum Transmission Unit. It specifies the largest packet size permitted for Internet
transmission. Select Manual if you want to manually enter the largest packet size that will be transmitted. The
recommended size, entered in the Size field, is 1500. You should leave this value in the 1200 to 1500 range. To
have the Router select the best MTU for your Internet connection, keep the default setting, Auto.
packet: a unit of data sent over a network
Network Setup
The Network Setup section changes the Router’s local network settings. Changes to the Router’s wireless
network settings are performed through the Wireless tab.
Router IP
IP Address and Subnet Mask. This shows both the Router’s IP Address and Subnet Mask, as seen by your
network. The default IP Address is 192.168.1.1, and the default Subnet Mask is 255.255.255.0. In most cases,
keeping the default values will work.
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The Setup Tab - Basic Setup
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DHCP Server Settings
The settings allow you to configure the Router’s Dynamic Host Configuration Protocol (DHCP) server function. The
Router can be used as a DHCP server for your network. A DHCP server automatically assigns an IP address to
each computer on your network. If you choose to enable the Router’s DHCP server option, you must make sure
there is no other DHCP server on your network.
dynamic ip address: a temporary IP
address assigned by a DHCP server.
DHCP Server. DHCP is enabled by factory default. If you already have a DHCP server on your network, or you
don’t want a DHCP server, then select Disabled (no other DHCP features will be available).
Assign Static DHCP. Every time a PC reboots, it is assigned a new local IP address by the Router. If you want a PC
to be assigned the same IP address every time it reboots, then click the Assign Static IP button.
On the Static DHCP Client List screen, enter a client name, then enter the static local IP address in the Assign this
IP field, and enter the MAC address of the PC in the To this MAC field. Then click the Enabled checkbox. When you
have finished your entries, click the Save Settings button to save your changes. Click the Cancel Changes
button to cancel your changes. To exit this screen, click the Close button.
If you want to see a list of DHCP clients, click the DHCP Client Table button. On the DHCP Client Table screen, you
will see a list of DHCP clients with the following information: Client Names, Interfaces, IP Addresses, and MAC
Addresses. From the To Sort by drop-down menu, you can sort the table by Client Name, Interface, IP Address, or
MAC Address. To view the most up-to-date information, click the Refresh button. To exit this screen, click the
Close button.
Start IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. Because the
Router’s default IP address is 192.168.1.1, the Starting IP Address must be 192.168.1.2 or greater, but smaller
than 192.168.1.254. The default Starting IP Address is 192.168.1.100.
Figure 5-7: Static DHCP Client List
Maximum Number of Users. Enter the maximum number of PCs that you want the DHCP server to assign IP
addresses to. This number cannot be greater than 253. The default is 50.
IP Address Range. The range of DHCP addresses is displayed here.
Client Lease Time. The Client Lease Time is the amount of time a network user will be allowed connection to the
Router with their current dynamic IP address. Enter the amount of time, in minutes, that the user will be “leased”
this dynamic IP address. After the time is up, the user will be automatically assigned a new dynamic IP address.
The default is 0 minutes, which means one day.
WINS. The Windows Internet Naming Service (WINS) manages each PC’s interaction with the Internet. If you use
a WINS server, enter that server’s IP Address here. Otherwise, leave this blank.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Setup Tab - Basic Setup
Figure 5-8: DHCP Client Table
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Time Settings
Change the time zone in which your network functions from this pull-down menu. Click the checkbox if you want
the Router to automatically adjust for daylight savings time.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
The Setup Tab - DDNS
The Router offers a Dynamic Domain Name System (DDNS) feature. DDNS lets you assign a fixed host and domain
name to a dynamic Internet IP address. It is useful when you are hosting your own website, FTP server, or other
server behind the Router.
Before you can use this feature, you need to sign up for DDNS service at one of two DDNS service providers, DynDNS.org or
TZO.com. If you do not want to use this feature, keep the default setting, Disable.
DDNS
DDNS Service. If your DDNS service is provided by DynDNS.org, then select DynDNS.org from the drop-down
menu. If your DDNS service is provided by TZO, then select TZO.com. The features available on the DDNS screen
will vary, depending on which DDNS service provider you use.
Figure 5-9: DynDNS.org
DynDNS.org
User Name, Password, and Host Name. Enter the User Name, Password, and Host Name of the account you
set up with DynDNS.org.
Internet IP Address. The Router’s current Internet IP Address is displayed here. Because it is dynamic, it will
change.
Status. The status of the DDNS service connection is displayed here.
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The Setup Tab - DDNS
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TZO.com
E-mail Address, Password, and Domain Name. Enter the Email Address, Password, and Domain Name of
the service you set up with TZO.
Internet IP Address. The Router’s current Internet IP Address is displayed here. Because it is dynamic, this
will change.
Status. The status of the DDNS service connection is displayed here.
When you have finished making changes to this screen, click the Save Settings button to apply your changes or
Cancel Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
Figure 5-10: TZO.com
The Setup Tab - MAC Address Clone
A MAC address is a 12-digit code assigned to a unique piece of hardware for identification. Some ISPs will
require you to register a MAC address in order to access the Internet. If you do not wish to re-register the MAC
address with your ISP, you may assign the MAC address you have currently registered with your ISP to the Router
with the MAC Address Clone feature.
MAC Address Clone
Enabled/Disabled. To have the MAC Address cloned, select Enabled from the drop-down menu.
Figure 5-11: Setup Tab - MAC Address Clone
MAC Address. Enter the MAC Address registered with your ISP here.
Clone My PC’s MAC. Clicking this button will clone the MAC address of the PC you are currently using.
mac address: the unique address that a
manufacturer assigns to each networking device.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Setup Tab - MAC Address Clone
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The Setup Tab - Advanced Routing
This tab is used to set up the Router’s advanced functions. Operating Mode allows you to select the type(s) of
advanced functions you use. Dynamic Routing will automatically adjust how packets travel on your network. Static
Routing sets up a fixed route to another network destination.
Operating Mode. Select the mode in which this Router will function. If this Router is hosting your network’s
connection to the Internet, select Gateway. If another Router exists on your network, select Router. When Router is
chosen, Dynamic Routing will be enabled.
Dynamic Routing. This feature enables the Router to automatically adjust to physical changes in the network’s
layout and exchange routing tables with the other router(s). The Router determines the network packets’ route
based on the fewest number of hops between the source and the destination. This feature is Disabled by default.
From the drop-down menu, you can also select LAN & Wireless, which performs dynamic routing over your
Ethernet and wireless networks. You can also select WAN, which performs dynamic routing with data coming from
the Internet. Finally, selecting Both enables dynamic routing for both networks, as well as data from the Internet.
Figure 5-12: Setup Tab - Advanced Routing (Gateway)
Static Routing. To set up a static route between the Router and another network, select a number from the Static
Routing drop-down list. (A static route is a pre-determined pathway that network information must travel to reach a
specific host or network.) Enter the information described below to set up a new static route. (Click the Delete This
Entry button to delete a static route.)
Enter Route Name. Enter a name for the Route here, using a maximum of 25 alphanumeric characters.
Destination LAN IP. The Destination LAN IP is the address of the remote network or host to which you want to
assign a static route.
Subnet Mask. The Subnet Mask determines which portion of a Destination LAN IP address is the network
portion, and which portion is the host portion.
Default Gateway. This is the IP address of the gateway device that allows for contact between the Router and
the remote network or host.
Interface. This interface tells you whether the Destination IP Address is on the LAN & Wireless (Ethernet and
wireless networks), the WAN (Internet), or a dummy network in which one PC acts like a network—necessary
for certain software programs).
Figure 5-13: Setup Tab - Advanced Routing (Router)
Click the Show Routing Table button to view the Static Routes you’ve already set up.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Setup Tab - Advanced Routing
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The Wireless Tab - Basic Wireless Settings
The basic settings for wireless networking are set on this screen.
Wireless Network
Wireless-G Settings
Mode. From this drop-down menu, you can select the wireless standards running on your network. If you have
both 802.11g and 802.11b devices in your network, keep the default setting, Mixed. If you have only 802.11g
devices, select G Only. If you have only 802.11b devices, select B Only.
Figure 5-14: Wireless Tab - Basic Wireless Settings
Network Name (SSID). The SSID is the network name shared by all devices in a wireless network. The SSID
must be identical for all devices in the wireless network. It is case-sensitive and must not exceed 32 keyboard
characters in length. Make sure this setting is the same for all devices in your wireless network. For added
security, you should change the default SSID (linksys) to a unique name.
Channel. Select the appropriate channel from the list provided to correspond with your network settings. All
devices in your wireless network must broadcast on the same channel in order to communicate.
SSID Broadcast. When wireless clients survey the local area for wireless networks to associate with, they will
detect the SSID broadcast by the Router. To broadcast the Router's SSID, keep the default setting, Enabled. If you
do not want to broadcast the Router's SSID, then select Disabled.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Wireless Tab - Basic Wireless Settings
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The Wireless Tab - Wireless Security
The Wireless Security settings configure the security of your wireless network. There are three wireless security
mode options supported by the Router: WPA Personal, WPA2 Personal, WPA2 Mixed Mode and WEP. (WEP stands
for Wired Equivalent Privacy). These four are briefly discussed here. For detailed instructions on configuring
wireless security for the Router, turn to “Appendix B: Wireless Security.”
IMPORTANT: If you are using encryption, always
remember that each device in your wireless
network MUST use the same encryption method
and encryption key, or else your wireless network
will not function properly.
Wireless Security
WEP. WEP is a basic encryption method. Select a level of WEP encryption, 64-bit or 128-bit. If you want to use a
Passphrase, then enter it in the Passphrase field and click the Generate button. If you want to enter the WEP key
manually, then enter it in the WEP Key 1-4 field(s). To indicate which WEP key to use, select the appropriate TX
Key number.
Figure 5-15: Wireless Tab - Wireless Security
(WEP)
wep (wired equivalent privacy): a method of
encrypting network data transmitted on a
wireless network for greater security.
WPA Personal. This method offers two encryption methods, TKIP and AES, with dynamic encryption keys. Select
the type of encryption method you want to use, TKIP or AES. Enter the Passphrase, which can have 8 to 63
characters. Then enter the Key Renewal period, which instructs the Router how often it should change the
encryption keys.
Figure 5-16: Wireless Tab - Wireless Security
(WPA Personal)
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The Wireless Tab - Wireless Security
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WPA2 Personal. WPA2 gives you one encryption method, AES, with dynamic encryption keys. Enter a
Passphrase of 8-63 characters. Then enter a Group Key Renewal period, which instructs the Router how often it
should change the encryption keys.
Figure 5-17: Wireless Tab - Wireless Security
(WPA2 Personal)
WPA2 Mixed Mode. WPA2 gives you TKIP+AES encryption. Enter a Passphrase of 8-63 characters. Then enter a
Group Key Renewal period, which instructs the Router how often it should change the encryption keys.
Figure 5-18: Wireless Tab - Wireless Security
(WPA2 Mixed Mode)
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Wireless Tab - Wireless Security
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The Wireless Tab - Wireless MAC Filter
Wireless access can be filtered by using the MAC addresses of the wireless devices transmitting within your
network’s radius.
Wireless MAC Filter
Access Restrictions
To filter wireless users by MAC Address, either permitting or blocking access, click Enabled. If you do not wish to
filter users by MAC Address, select Disabled.
Prevent PCs listed below from accessing the wireless network. Clicking this radio button will block wireless
access by MAC Address.
Permit PCs listed below to access the wireless network. Clicking this radio button will allow wireless access
by MAC Address.
Wireless Client List
Figure 5-19: Wireless Tab - Wireless MAC Filter
Wireless Client List. Click the Wireless Client MAC List button to display a list of network users by MAC
Address.From the To Sort by drop-down menu, you can sort the table by Client Name, IP Address, or MAC
Address. To view the most up-to-date information, click the Refresh button. To exit this screen, click the Close
button.
List users, by MAC Address, whose wireless access you want to control.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
Figure 5-20: Wireless Tab - Wireless Client List
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Wireless Tab - Wireless MAC Filter
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The Wireless Tab - Advanced Wireless Settings
This tab is used to set up the Router’s advanced wireless functions. These settings should only be adjusted by an
expert administrator as incorrect settings can reduce wireless performance.
Advanced Wireless
Wireless-G Settings
Authentication Type. The default is set to Auto (Default), allows either Open System or Shared Key
authentication to be used. With Open System authentication, the sender and the recipient do NOT use a WEP key
for authentication. With Shared Key authentication, the sender and recipient use a WEP key for authentication.
Figure 5-21: Wireless Tab - Advanced Wireless
Settings
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 (Default) to have the
Router automatically use the fastest possible data rate and enable the Auto-Fallback feature. Auto-Fallback will
negotiate the best possible connection speed between the Router and a wireless client. The default value is Auto
(Default).
Basic Rate. The Basic Rate setting is not actually one rate of transmission but a series of rates at which the
Router can transmit. The Router will advertise its Basic Rate to the other wireless devices in your network, so
they know which rates will be used. The Router will also advertise that it will automatically select the best rate
for transmission. The default setting is Default, when the Router can transmit at all standard wireless rates
(1-2Mbps, 5.5Mbps, 11Mbps, 18Mbps, and 24Mbps). Other options are 1-2Mbps, for use with older wireless
technology, and All, when the Router can transmit at all wireless rates. The Basic Rate is not the actual rate of
data transmission. If you want to specify the Router’s rate of data transmission, configure the Transmission Rate
setting.
CTS Protection Mode. CTS (Clear-To-Send) Protection Mode should be set to Auto (Default). The Router will
automatically use CTS Protection Mode when your Wireless-G products are experiencing severe problems and
are not able to transmit to the Router in an environment with heavy 802.11b traffic. This function boosts the
Router’s ability to catch all Wireless-G transmissions but will severely decrease performance.
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 Router has buffered broadcast or multicast messages for associated clients, it sends the next DTIM with a
DTIM Interval value. Its clients hear the beacons and awaken to receive the broadcast and multicast messages.
The default value is 1.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Wireless Tab - Advanced Wireless Settings
cts (clear to send): a signal sent by a wireless
device, signifying that it is ready to receive data.
dtim: a message included in data packets
that can increase wireless efficiency.
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Fragmentation Threshold. This value specifies the maximum size for a packet before data is fragmented into
multiple packets. 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
reduction of the default value is recommended. In most cases, it should remain at its default value of 2346.
RTS Threshold. Should you encounter inconsistent data flow, only minor reduction of the default value, 2347, is
recommended. If a network packet is smaller than the preset RTS threshold size, the RTS/CTS mechanism will
not be enabled. The Router 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. The RTS Threshold value should remain at its default value
of 2347.
fragmentation: breaking a packet into smaller units
when transmitting over a network medium that
cannot support the original size of the packet.
beacon interval: data transmitted on your wireless
network that keeps the network synchronized.
Beacon Interval. The default value is 100. The Beacon Interval value indicates the frequency interval of the
beacon. A beacon is a packet broadcast by the Router to synchronize the wireless network.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Wireless Tab - Advanced Wireless Settings
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The Security Tab - Firewall
The Firewall screen offers Filters and the option to Block WAN Requests. Filters block specific Internet data types
and block anonymous Internet requests. To enable a feature, select Enabled from the drop-down menu. To
disable a feature, select Disabled from the drop-down menu.
Firewall
• SPI Firewall Protection. Enable this feature to employ Stateful Packet Inspection (SPI) for more detailed
review of data packets entering your network environment.
Figure 5-22: Security Tab - Firewall
• Block Anonymous Internet Requests. When enabled, this feature keeps your network from being “pinged,” or
detected, by other Internet users. It also reinforces your network security by hiding your network ports. Both
functions of this feature make it more difficult for outside users to work their way into your network. This
feature is enabled by default. Select Disabled to allow anonymous Internet requests.
• Filter Multicast. Multicasting allows for multiple transmissions to specific recipients at the same time. If
multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate
computers. Select Enable to filter multicasting, or Disable to disable this feature.
• Filter Internet NAT Redirection. This feature uses port forwarding to block access to local servers from local
networked computers. Check the box to enable filter Internet NAT redirection, or uncheck the box to disable
this feature.
• Web Filters
Proxy. Use of WAN proxy servers may compromise the Gateway's security. Denying Filter Proxy will disable
access to any WAN proxy servers. To enable proxy filtering, click the checkbox.
Java. Java is a programming language for websites. If you deny Java, you run the risk of not having access to
Internet sites created using this programming language. To enable Java filtering, click the checkbox.
ActiveX. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not having
access to Internet sites created using this programming language. To enable ActiveX filtering, click the
checkbox.
Cookies. A cookie is data stored on your computer and used by Internet sites when you interact with them. To
enable cookie filtering, click the checkbox.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Security Tab - Firewall
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The Security Tab - VPN Passthrough
Use the settings on this tab to allow VPN tunnels using IPSec, L2TP, or PPTP protocols to pass through the
Router’s firewall.
VPN Passthrough
IPSec Passthrough. Internet Protocol Security (IPSec) is a suite of protocols used to implement secure exchange
of packets at the IP layer. IPSec Pass-Through is enabled by default. To disable IPSec Passthrough, select
Disabled.
L2TP Passthrough. Layer 2 Tunneling Protocol is the method used to enable Point-to-Point sessions via the
Internet on the Layer 2 level. L2TP Pass-Through is enabled by default. To disable L2TP Passthrough, select
Disabled.
PPTP Passthrough. Point-to-Point Tunneling Protocol (PPTP) allows the Point-to-Point Protocol (PPP) to be
tunneled through an IP network. PPTP Pass-Through is enabled by default. To disable PPTP Passthrough, select
Disabled.
Figure 5-23: Security Tab - VPN Passthrough
ipsec: a VPN protocol used to implement
secure exchange of packets at the IP layer.
pptp: a VPN protocol that allows the Point to Point
Protocol (PPP) to be tunneled through an IP network.
This protocol is also used as a type of broadband
connection in Europe.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
The Access Restrictions Tab - Internet Access Policy
The Internet Access Policy screen allows you to block or allow specific kinds of Internet usage and traffic, such as
Internet access, designated applications, websites, and inbound traffic during specific days and times.
Internet Access Policy
Access Policy. Access can be managed by a policy. Use the settings on this screen to establish an access policy
(after the Save Settings button is clicked). Selecting a policy from the drop-down menu will display that policy’s
settings. To delete a policy, select that policy’s number and click the Delete This Policy button. To view all the
policies, click the Summary button.
On the Summary screen, the policies are listed with the following information: No., Policy Name, Access, Days,
Time, and status (Enabled). You can change the type of access, days, and times of a policy. To activate a policy,
click the Enabled checkbox. To delete a policy, click its Delete button. Click the Save Settings button to save
your changes, or click the Cancel Changes button to cancel your changes. To return to the Internet Access Policy
tab, click the Close button. To view the list of PCs for a specific policy, click the PCs List button.
Figure 5-24: Access Restrictions Tab - Internet
Access Policy
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Security Tab - VPN Passthrough
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On the Internet Access PCs List screen, you can select a PC by MAC Address or IP Address. You can also enter a
range of IP Addresses if you want this policy to affect a group of PCs. After making your changes, click the Save
Settings button to apply your changes or Cancel Changes to cancel your changes. Click the Close button to exit
this screen.
To create an Internet Access policy:
1. Select a number from the Access Policy drop-down menu.
2. Enter a Policy Name in the field provided.
3. To enable this policy, select Enable from the Status drop-down menu.
4. Click the Edit List button to select which PCs will be affected by the policy. The Internet Access PCs List
screen will appear. You can select a PC by MAC Address or IP Address. You can also enter a range of IP
Addresses if you want this policy to affect a group of PCs. After making your changes, click the Save Settings
button to apply your changes or Cancel Changes to cancel your changes. Then click the Close button.
Figure 5-25: Access Restrictions Tab - Summary
5. Click the appropriate option, Deny or Allow, depending on whether you want to block or allow Internet access
for the PCs you listed on the List of PCs screen.
6. Decide which days and what times you want this policy to be enforced. Select the individual days during
which the policy will be in effect, or select Everyday. Then enter a range of hours and minutes during which
the policy will be in effect, or select 24 Hours.
7. You can filter access to various applications accessed over the Internet, such as FTP or telnet, by selecting up
to three applications from the drop-down menus next to Blocked Application Port.
The Block Services menu offers a choice of ten preset applications. For the preset applications you select, the
appropriate range of ports will automatically be displayed. Click the >> button to add to the Blocked Services
list.
If the application you want to block is not listed or you want to edit an application’s settings, then create a
new one by entering a Service Name, Protocol, and Port Range. Then, click Add.
8. You can also block access by URL address by entering it in the Website Blocking by URL Address field or by
Keyword by entering it in the Website Blocking by Keyword field.
9. Click the Save Settings button to save the policy’s settings. To cancel the policy’s settings, click the Cancel
Changes button.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Access Restrictions Tab - Internet Access Policy
Figure 5-26: Access Restrictions Tab - Internet Access
PCs List
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The Applications and Gaming Tab - Port Range Forwarding
The Port Range Forwarding screen allows you to set up public services on your network, such as web servers, ftp
servers, e-mail servers, or other specialized Internet applications. (Specialized Internet applications are any
applications that use Internet access to perform functions such as videoconferencing or online gaming. Some
Internet applications may not require any forwarding.)
Before using forwarding, you should assign static IP addresses to the designated PCs.
Port Range Forwarding
To forward a port, enter the information on each line for the criteria required. Descriptions of each criteria are
described here.
Application Name. Each drop-down menu offers a choice of ten preset applications (select None if you do not
want to use any of the preset applications). Select up to five preset applications. For custom applications, enter
the name of your application in one of the available fields.
The preset applications are among the most widely used Internet applications. They include the following:
Figure 5-27: Applications and Gaming Tab - Port
Range Forwarding
DNS (Domain Name System). The way that Internet domain names are located and translated into IP addresses. A
domain name is a meaningful and easy-to-remember “handle” for an Internet address.
Finger. A UNIX command widely used on the Internet to find out information about a particular user, such as a
telephone number, whether the user is currently logged on, and the last time the user was logged on. The person
being “fingered” must have placed his or her profile on the system in order for the information to be available.
Fingering requires entering the full user@domain address.
FTP (File Transfer Protocol). A protocol used to transfer files over a TCP/IP network (Internet, UNIX, etc.). For
example, after developing the HTML pages for a website on a local machine, they are typically uploaded to the
web server using FTP.
POP3 (Post Office Protocol 3). A standard mail server commonly used on the Internet. It provides a message store
that holds incoming e-mail until users log on and download it. POP3 is a simple system with little selectivity. All
pending messages and attachments are downloaded at the same time. POP3 uses the SMTP messaging protocol.
SMTP (Simple Mail Transfer Protocol). The standard e-mail protocol on the Internet. It is a TCP/IP protocol that
defines the message format and the message transfer agent (MTA), which stores and forwards the mail.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Applications and Gaming Tab - Port Range Forwarding
30
Compact Wireless-G Broadband Router
SNMP (Simple Network Management Protocol). A widely used network monitoring and control protocol. Data is
passed from SNMP agents, which are hardware and/or software processes reporting activity in each network
device (hub, router, bridge, etc.) to the workstation console used to oversee the network. The agents return
information contained in a MIB (Management Information Base), which is a data structure that defines what is
obtainable from the device and what can be controlled (turned off, on, etc.).
Telnet. A terminal emulation protocol commonly used on Internet and TCP/IP-based networks. It allows a user at
a terminal or computer to log onto a remote device and run a program.
TFTP (Trivial File Transfer Protocol). A version of the TCP/IP FTP protocol that has no directory or password
capability.
Web. The Internet.
Start/End. This is the port range. Enter the port number or range of external ports used by the server or Internet
application. Check with the software documentation of the Internet application for more information.
Protocol. Select the protocol(s) used for this application, TCP and/or UDP.
To IP Address. For each application, enter the IP address of the PC running the specific application.
tcp: a network protocol for transmitting data
that requires acknowledgement from the
recipient of data sent.
Enabled. Click the Enabled checkbox to enable port forwarding for the relevant application.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Applications and Gaming Tab - Port Range Forwarding
udp: a network protocol for transmitting data
that does not require acknowledgement from
the recipient of the data that is sent.
31
Compact Wireless-G Broadband Router
The Applications & Gaming Tab - Port Range Triggering
The Port Range Triggering screen allows the Router to watch outgoing data for specific port numbers. The IP
address of the computer that sends the matching data is remembered by the Router, so that when the requested
data returns through the Router, the data is pulled back to the proper computer by way of IP address and port
mapping rules.
Port Range Triggering
Application Name. Enter the application name of the trigger.
Triggered Range. For each application, list the triggered port number range. Check with the Internet application
documentation for the port number(s) needed. In the first field, enter the starting port number of the Triggered
Range. In the second field, enter the ending port number of the Triggered Range.
Forwarded Range. For each application, list the forwarded port number range. Check with the Internet
application documentation for the port number(s) needed. In the first field, enter the starting port number of the
Forwarded Range. In the second field, enter the ending port number of the Forwarded Range.
Figure 5-28: Applications and Gaming Tab Port Triggering
Enabled. Click the Enabled checkbox to enable port range triggering for the relevant application.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Applications & Gaming Tab - Port Range Triggering
32
Compact Wireless-G Broadband Router
The Applications and Gaming Tab - DMZ
The DMZ feature allows one network user to be exposed to the Internet for use of a special-purpose service such
as Internet gaming or videoconferencing. DMZ hosting forwards all the ports at the same time to one PC. The Port
Range Forwarding feature is more secure because it only opens the ports you want to have opened, while DMZ
hosting opens all the ports of one computer, exposing the computer to the Internet.
Any PC whose port is being forwarded must have its DHCP client function disabled and should have a new static
IP address assigned to it because its IP address may change when using the DHCP function.
Figure 5-29: Applications and Gaming Tab - DMZ
DMZ
To expose one PC, select Enable, then enter a WAN IP Address or Host IP Address in the field.
Wan IP Address. The Internet IP address of the computer you want to expose.
Host IP Address. Enter the IP address of the computer you want to expose.
Change these settings as described here and click the Save Settings button to apply your changes or Cancel
Changes to cancel your changes. Help information is shown on the right-hand side of the screen.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Applications and Gaming Tab - DMZ
33
Compact Wireless-G Broadband Router
The Administration Tab - Management
This section of the Administration tab allows the network’s administrator to manage specific Router functions for
access and security.
Management
Router Password
Router Password and Re-enter to Confirm. You can change the Router’s password from here. Enter a new
Router password and then type it again in the Re-enter to Confirm field to confirm.
Remote Router Access
Remote Management. To access the Router remotely, from outside the local network, select Enabled.
Otherwise, keep the default setting, Disabled.
Figure 5-30: Administration Tab - Management
Remote Upgrade. If you want to be able to upgrade the Router remotely, from outside the local network, select
Enabled. (You must have the Remote Management feature enabled as well.) Otherwise, keep the default setting,
Disabled.
Allow Remote IP Address. If you want to be able to access the Router from any external IP address, select Any
IP Address. If you want to specify an external IP address or range of IP addresses, then select the second option
and complete the fields provided.
Remote Management Port. Enter the port number that will be open to outside access.
UPnP
Universal Plug and Play (UPnP) allows Windows Me and XP to automatically configure the Router for various
Internet applications, such as gaming and videoconferencing.
UPnP. If you want to use UPnP, keep the default setting, Enabled. Otherwise, select Disabled.
Allow Users to Configure. Keep the default setting, Enabled, if you want to be able to make manual changes to
the Router while using the UPnP feature. Otherwise, select Disabled.
Allow Users to Disable Internet Access. Keep the default setting, Enabled, if you want to be able to prohibit
any and all Internet connections. Otherwise, select Disabled.
Chapter 5: Configuring the Compact Wireless-G Broadband Router
The Administration Tab - Management
34

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