Linksys WRT120N Owner's Manual

USER GUIDE

Wireless-N Home Router
Model: WRT120N
About This Guide
While reading through the User Guide you may see various icons that call attention to specific items. Below is a description of these icons:
NOTE: This check mark indicates that there is
a note of interest and is something that you should pay special attention to while using the product.
WARNING: This exclamation point indicates
that there is a caution or warning and it is something that could damage your property or product.
About This Guide
WEB: This globe icon indicates a noteworthy
website address or e-mail address.
Online Resources
Website addresses in this document are listed without http:// in front of the address because most current web browsers do not require it. If you use an older web browser, you may have to add http:// in front of the web address.
Resource Website
Linksys www.linksysbycisco.com
Linksys International
Glossary www.linksysbycisco.com/glossary
Network Security www.linksysbycisco.com/security
www.linksysbycisco.com/international
Copyright and Trademarks
Linksys, Cisco and the Cisco Logo are registered trademarks or trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Other brands and product names are trademarks or registered trademarks of their respective holders. Copyright © 2009 Cisco Systems, Inc. All rights reserved.
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Table of Contents
Chapter 1: Product Overview 1
Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Chapter 2: Wireless Security Checklist 3
General Network Security Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Additional Security Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chapter 3: Advanced Conguration 4
Setup > Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Setup > DDNS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Setup > MAC Address Clone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setup > Advanced Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Wireless > Basic Wireless Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Wireless > Wireless Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Wireless > Wireless MAC Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Wireless > Advanced Wireless Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Security > Firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Security > VPN Passthrough. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Access Restrictions > Internet Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Applications and Gaming > Single Port Forwarding. . . . . . . . . . . . . . . . . . . . . . . .19
Applications and Gaming > Port Range Forwarding . . . . . . . . . . . . . . . . . . . . . . .19
Applications & Gaming > Port Range Triggering . . . . . . . . . . . . . . . . . . . . . . . . . .20
Applications and Gaming > DMZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Applications and Gaming > QoS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Administration > Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Administration > Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Administration > Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Administration > Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Administration > Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Status > Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Status > Local Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Status > Wireless Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Wireless-N Home Router
Appendix A: Troubleshooting 28
Appendix B: Specications 30
Appendix E:
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Table of Contents
Warranty Information 31
Limited Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Exclusions and Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Obtaining Warranty Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Appendix D: Regulatory Information 33
FCC Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Safety Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Industry Canada Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Wireless Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Avis de non-responsabilité concernant les appareils sans l . . . . . . . . . . . . . . . . . .34
Declaration of Conformity with Regard to EU Directive 1999/5/EC (R&TTE Directive) . .35
Wireless Equipment (Wireless-N/G/A/B Products) . . . . . . . . . . . . . . . . . . . . . . . . .36
CE Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
National Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Product Usage Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Technical Documents on
www.linksysbycisco.com/international. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste
Electric and Electronic Equipment (WEEE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Appendix E: Software End User License Agreement 42
Cisco Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Software Licenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
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iii
Chapter 1
Product Overview

Chapter 1: Product Overview

Thank you for choosing the Linksys by Cisco Wireless-N Home Router. The Router lets you access the Internet via a wireless connection or through one of its four switched ports. You can also use the Router to share resources such as computers, printers and files. A variety of security features help to protect your data and your privacy while you are online. Security features include WPA2 security, a Stateful Packet Inspection (SPI) firewall, and NAT technology. Configuring the Router is easy using the provided browser–based utility.

Front Panel

1, 2, 3, 4 (Blue) 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 successfully connected to a device through that port. A flashing LED indicates network activity over that port.
Wi-Fi Protected Setup Button If you have
client devices, such as wireless adapters, that support Wi-Fi Protected Setup, then you can use Wi-Fi Protected Setup to automatically configure wireless security for your wireless network.
To use Wi-Fi Protected Setup, run the Setup Wizard, or refer to Wi-Fi Protected Setup, page
11.
Wi-Fi Protected Setup LED (Blue/
Amber) The LED lights up blue when wireless security is enabled. It flashes blue for two minutes during Wi-Fi Protected Setup.
The LED lights up amber if there is an error during the Wi-Fi Protected Setup process. Make sure the client device supports Wi-Fi Protected Setup. Wait until the LED is off, and then try again.
The LED flashes when a Wi-Fi Protected Setup session is active. The Router supports one session at a time. Wait until the LED is solidly lit, or off before starting the next Wi-Fi Protected Setup session.
Wireless (Blue) The Wireless LED lights up
when the wireless feature is enabled. If the LED is flashing, the Router is sending or receiving data over the network.
Internet (Blue) The Internet LED lights up
when there is a connection made through the Internet port. It flashes to indicate network activity over the Internet port.
Power (Blue) 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.

Back Panel

Internet The Internet port is where you will
connect your cable or DSL Internet connection.
4, 3, 2, 1 These Ethernet ports (4, 3, 2, 1)
connect the Router to computers on your wired network and other Ethernet network devices.
Reset The Reset button is located on the
right side of the product label. There are two ways to reset the Router to its factory defaults. Either press and hold the Reset button for approximately five seconds, or restore the defaults from the Administration > Factory Defaults screen of the Router’s browser-based utility.
Power The Power port connects to the included
power adapter.
Horizontal Placement
The Router has four rubber feet on its bottom panel. Place the Router on a level surface near an electrical outlet.
Wireless-N Home Router
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Chapter 1
Wall-Mounting Placement
The Router has two wall-mount slots on its bottom panel. The distance between the slots is 152 mm (6 inches).
Two screws are needed to mount the Router.
Suggested Mounting Hardware
Product Overview
4-5 mm 1-1.5 mm
Note: Mounting hardware illustrations are not
true to scale.
NOTE: Linksys is not responsible for damages
incurred by insecure wall-mounting hardware.
Follow these instructions:
1. Determine where you want to mount the Router. Make sure that the wall you use is smooth, flat, dry, and sturdy. Also make sure the location is within reach of an electrical outlet.
2. Drill two holes into the wall. Make sure the holes are 152 mm (6 inches) apart.
3. Insert a screw into each hole and leave 3 mm (0.12 inches) of its head exposed.
4. Maneuver the Router so the wall-mount slots line up with the two screws.
5. Place the wall-mount slots over the screws and slide the Router down until the screws fit snugly into the wall-mount slots.
2.5-3.0 mm
Wireless-N Home Router
152 mm
Print this page at 100% size.
Cut along the dotted line, and place on the wall to drill precise spacing.
Wall-Mounting Template
2
Chapter 2
Wireless Security Checklist

Chapter 2: Wireless Security Checklist

Wireless networks are convenient and easy to install, so homes with high-speed Internet access are adopting them at a rapid pace. Because wireless networking operates by sending information over radio waves, it can be more vulnerable to intruders than a traditional wired network. Like signals from your cellular or cordless phones, signals from your wireless network can also be intercepted. Since you cannot physically prevent someone from connecting to your wireless network, you need to take some additional steps to keep your network secure.
1. Change the default wireless network name or SSID
Wireless devices have a default wireless network name or Service Set Identifier (SSID) set by the factory. This is the name of your wireless network, and can be up to 32 characters in length. Linksys wireless products use linksys as the default wireless network name. You should change the wireless network name to something unique to distinguish your wireless network from other wireless networks that may exist around you, but do not use personal information (such as your Social Security number) because this information may be available for anyone to see when browsing for wireless networks.
2. Change the default password
For wireless products such as access points and routers, you will be asked for a password when you want to change their settings. These devices have a default password set by the factory. The Linksys default password is admin. Hackers know these defaults and may try to use them to access your wireless device and change your network settings. To thwart any unauthorized changes, customize the device’s password so it will be hard to guess.
4. Enable encryption
Encryption protects data transmitted over a wireless network. Wi-Fi Protected Access (WPA/WPA2) and Wired Equivalent Privacy (WEP) offer different levels of security for wireless communication.
A network encrypted with WPA/WPA2 is more secure than a network encrypted with WEP, because WPA/WPA2 uses dynamic key encryption. To protect the information as it passes over the airwaves, you should enable the highest level of encryption supported by your network equipment.
WEP is an older encryption standard and may be the only option available on some older devices that do not support WPA.

General Network Security Guidelines

Wireless network security is useless if the underlying network is not secure.
• Password protect all computers on the network and
individually password protect sensitive files.
• Change passwords on a regular basis.
• Install anti-virus software and personal firewall
software.
• Disable file sharing (peer-to-peer). Some applications
may open file sharing without your consent and/or knowledge.

Additional Security Tips

• Keep wireless routers, access points, or gateways away
from exterior walls and windows.
• Turn wireless routers, access points, or gateways
off when they are not being used (at night, during vacations).
• Use strong passphrases that are at least eight characters
in length. Combine letters and numbers to avoid using standard words that can be found in the dictionary.
3. Enable MAC address filtering
Linksys routers give you the ability to enable Media Access Control (MAC) address filtering. The MAC address is a unique series of numbers and letters assigned to every networking device. With MAC address filtering enabled, wireless network access is provided solely for wireless devices with specific MAC addresses. For example, you can specify the MAC address of each computer in your home so that only those computers can access your wireless network.
Wireless-N Home Router
WEB: For more information on wireless security,
visit www.linksysbycisco.com/security
3
Chapter 3

Chapter 3: Advanced Configuration

After setting up the Router with the Setup Wizard (located on the CD-ROM), the Router will be ready for use. However, if you want to change its advanced settings, use the Router’s browser-based utility. This chapter describes each web page of the utility and each page’s key functions. You can access the utility via a web browser on a computer connected to the Router.
The browser-based utility has these 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.
NOTE: When first installing the Router, you
should use the Setup Wizard on the Setup CD-ROM. If you want to configure advanced settings, use this chapter to learn about the browser-based utility.
Advanced Configuration

Setup > Basic Setup

Access the Browser-Based Utility
To access the browser-based utility, launch the web browser on your computer, and enter the Router’s default IP address, 192.168.1.1, in the Address field. Then press Enter.
A login screen will appear. (Non-Windows XP users will see a similar screen.) Leave the User name field blank. The first time you open the browser-based utility, use the default password admin. (You can set a new password from the Administration > Management screen.) Click OK to continue.
Login Screen
Language
Select your language
one from the drop-down menu. The language of the browser-based utility will change five seconds after you select another language.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
To use a different language, select
Internet Setup
The Internet Setup section configures the Router to your Internet connection. Most of this information can be obtained through your Internet Service Provider (ISP).
Internet Connection Type
Select the type of Internet connection your ISP provides from the drop-down menu. These are the available types:
• Automatic Configuration - DHCP
• Static IP
• PPPoE
• PPTP
• L2TP
Setup > Basic Setup
The first screen that appears is the Basic Setup screen. This allows you to change the Router’s general settings.
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• Telstra Cable
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Chapter 3
Advanced Configuration
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. (This option usually applies to cable connections.)
Internet Connection Type > Automatic Configuration - DHCP
Static IP
If you are required to use a permanent IP address to connect to the Internet, select Static IP.
Internet Connection Type > 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.
Service Name (Optional) If provided by your ISP, enter
the Service Name.
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. To use this option, select Connect on Demand. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet connection terminates. The default Max Idle Time is 5 minutes.
Keep Alive: 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, select 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.
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 IP
address of the ISP server.
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.
Internet Connection Type > PPPoE
Internet Connection Type > PPTP
If your ISP supports DHCP or you are connecting through a dynamic IP address, then select Obtain an IP Address Automatically. If you are required to use a permanent IP address to connect to the Internet, then select Specify an IP Address. Then configure the following:
Specify an 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.
Username and Password Enter the Username and
Password provided by your ISP.
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Default Gateway Your ISP will provide you with the
IP address of the ISP server.
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Chapter 3
Advanced Configuration
DNS 1-3 Your ISP will provide you with at least one
DNS (Domain Name System) server IP address.
PPTP Server IP Address Your ISP will provide you with
the IP address of the PPTP server.
Username and Password Enter the Username 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. To use this option, select Connect on Demand. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet connection terminates. The default Max Idle Time is 5 minutes.
Keep Alive: Redial Period
Router will periodically check your Internet connection. If you are disconnected, then the Router will automatically re-establish your connection. To use this option, select Keep Alive. In the Redial Period field, you specify how often you want the Router to check the Internet connection. The default value is 30 seconds.
If you select this option, the
L2TP
L2TP is a service that applies to connections in Israel only.
Internet Connection Type > L2TP
Server IP Address This is the IP address of the L2TP
Server. Your ISP will provide you with the IP Address you need to specify here.
Username and Password Enter the Username 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. To use this option, select Connect on Demand. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet connection terminates. The default Max Idle Time is 5 minutes.
Keep Alive: 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, select 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.
Telstra Cable
Telstra Cable is a service that applies to connections in Australia only.
Internet Connection Type > Telstra Cable
Server IP Address This is the IP address of the Heartbeat
Server. Your ISP will provide you with the IP Address you need to specify here.
Username and Password Enter the Username 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. To use this option, select Connect on Demand. In the Max Idle Time field, enter the number of minutes you want to have elapsed before your Internet connection terminates. The default Max Idle Time is 5 minutes.
Keep Alive: 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, select 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
Some of these settings may be required by your ISP. Verify with your ISP before making any changes.
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Optional Settings
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Chapter 3
Advanced Configuration
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 is transmitted. To have the Router select the best MTU for your Internet connection, keep the default, Auto.
Size When Manual is selected in the MTU field, this option
is enabled. Leave this value in the 1200 to 1500 range. The default size depends on the Internet Connection Type:
• DHCP, Static IP, or Telstra: 1500
• PPPoE: 1492
• PPTP or L2TP: 1460
Network Setup
The Network Setup section changes the settings of the local network. Wireless setup is performed through the Wireless tab.
DHCP Server DHCP is enabled by factory default. If you
already have a DHCP server on your network, or you do not want a DHCP server, then select Disabled (no other DHCP features will be available).
DHCP Reservation Click this button if you want to assign
a fixed local IP address to a MAC address.
DHCP Reservation
You will see a list of DHCP clients with the following information: Client Name, Interface, IP Address, and MAC Address.
Router IP
This presents both the Router’s Local IP Address and Subnet Mask as seen by your network.
Router IP
DHCP Server Setting
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, make sure there is no other DHCP server on your network.
DHCP Reservation
Select Clients from DHCP Table Click the Select
check box to reserve a client’s IP address. Then click Add Clients.
Manually Adding Client To manually assign an IP
address, enter the client’s name in the Enter Client Name field. Enter the IP address you want it to have in the Assign IP Address field. Enter its MAC address in the To This MAC Address field. Then click Add.
Clients Already Reserved
A list of DHCP clients and their fixed local IP addresses will be displayed at the bottom of the screen. If you want to remove a client from this list, click Remove.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes. To update the on-screen information, click Refresh. To exit this screen and return to the Basic Setup screen, click Close.
Start IP Address Enter a value for the DHCP server to
start with when is default IP address is 192.168.1.1, the Start IP Address must be 192.168.1.2 or greater, but smaller than 192.168.1.253. The default is 192.168.1.100
suing IP addresses. Because the Router’s
.
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DHCP Server Setting
Maximum Number of Users Enter the maximum number
of computers that you want the DHCP server to assign IP
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Chapter 3
Advanced Configuration
addresses to. This number cannot be greater than 253. The default is 50.
IP Address Range Displayed here is the range of available
IP addresses.
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 has expired, the user will be automatically assigned a new dynamic IP address, or the lease will be renewed. The default is 0 minutes, which means one day.
Static DNS 1-3
the Internet translates domain or website names into Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. If you wish to use another, enter that IP Address in one of these fields. You can enter up to three DNS Server IP Addresses here. The Router will use these for quicker access to functioning DNS servers
WINS The Windows Internet Naming Service (WINS)
manages each computer’s interaction with the Internet. If you use a WINS server, enter that server’s IP Address here. Otherwise, leave this blank.
The Domain Name System (DNS) is how
.
The features available on the DDNS screen will vary, depending on which DDNS service provider you use.
DynDNS.org
Setup > DDNS > DynDNS
Username Enter the Username for your DDNS account.
Password Enter the Password for your DDNS account.
Host Name The is the DDNS URL assigned by the DDNS
service.
Time Settings
Time Zone Select the time zone in which your network
functions from this drop-down menu. (You can even automatically adjust for daylight saving time.)
Time Settings
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Setup > 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 with a DDNS service provider, www.dyndns.org or www.TZO.com. If you do not want to use this feature, keep the default, Disabled.
System Select the DynDNS service you use: Dynamic,
Static, or Custom. The default selection is Dynamic.
Mail Exchange (Optional) Enter the address of your mail
exchange server, so e-mails to your DynDNS address go to your mail server.
Backup MX This feature allows the mail exchange server
to be a backup. To disable this feature, keep the default, Disabled. To enable the feature, select Enabled. If you are not sure which setting to select, keep the default,
Disabled.
Wildcard This setting enables or disables wildcards
for your host. For example, if your DDNS address is
myplace.dyndns.org and you enable wildcards, then x.myplace.dyndns.org will work as well (x is the wildcard).
To disable wildcards, keep the default, Disabled. To enable wildcards, select Enabled. If you are not sure which setting to select, keep the default, Disabled.
Internet IP Address The Router’s Internet IP address is
displayed here. Because it is dynamic, it will change.
Status The status of the DDNS service connection is
displayed here.
Update To manually trigger an update, click this button.
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.
Wireless-N Home Router
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
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TZO.com
Setup > DDNS > TZO
E-mail Address, TZO Key, and Domain Name Enter the
settings of the account you set up with TZO.
Internet IP Address The Router’s Internet IP address is
displayed here. Because it is dynamic, it will change.
Status The status of the DDNS service connection is
displayed here.
Update To manually trigger an update, click this button.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Setup > Advanced Routing

This screen 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 automatically adjusts how packets travel on your network. Static Routing sets up a fixed route to another network destination.

Setup > 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.
Setup > MAC Address Clone
MAC Address Clone
Enabled/Disabled To have the MAC Address cloned,
select Enabled.
MAC Address Enter the MAC Address registered with
your ISP here.
Clone My PC’s MAC Click this button to clone the MAC
address of the computer you are using.
Setup > Advanced Routing
Advanced Routing
NAT
Enabled/Disabled If this Router is hosting your network’s
connection to the Internet, keep the default, Enabled. If another router exists on your network, select Disabled. When the NAT setting is disabled, dynamic routing will be enabled.
Dynamic Routing (RIP)
Enabled/Disabled 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. When the NAT setting is enabled, the Dynamic Routing feature is automatically disabled. When the NAT setting is disabled, this feature is available. Select Enabled to use the Dynamic Routing feature.
Static Routing
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.
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Route Entries To set up a static route between the Router
and another network, select a number from the drop­down list. Click Delete This Entry 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) or the WAN (Internet).
Click Show Routing Table to view the static routes you have already set up.
as wireless adapters, that support Wi-Fi Protected Setup, then you can use Wi-Fi Protected Setup.
Configuration View To manually configure your wireless
network, select Manual. Proceed to Basic Wireless Settings (Manual), page 10. To use Wi-Fi Protected Setup, select Wi-Fi Protected Setup. Proceed to Wi-Fi Protected Setup, page 11.
Basic Wireless Settings (Manual)
Wireless > Basic Wireless Settings (Manual Setup)
Network Mode From this drop-down menu, you can
select the wireless standards running on your network. If you have Wireless-N, Wireless-G, and Wireless-B devices in your network, keep the default, Mixed. If you have only Wireless-G and Wireless-B devices in your network, select
BG-Mixed. If you have only Wireless-N devices, select Wireless-N Only. If you have only Wireless-G devices,
select Wireless-G Only. If you have only Wireless-B devices, select Wireless-B Only. If you do not have any wireless devices in your network, select Disabled.
Advanced Routing > Routing Table
Routing Table
For each route, the Destination LAN IP address, Subnet Mask, Gateway, and Interface are displayed. To update the information, click Refresh. To exit this screen and return to the Advanced Routing screen, click Close.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Wireless > Basic Wireless Settings

The basic settings for wireless networking are set on this screen.
There are two ways to configure the Router’s wireless network(s), manual and Wi-Fi Protected Setup.
Wi-Fi Protected Setup is a feature that makes it easy to set up your wireless network. If you have client devices, such
Wireless-N Home Router
Network Name (SSID) The SSID is the network name
shared among all points 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 characters (use any of the characters on the keyboard). Make sure this setting is the same for all points in your wireless network. For added security, you should change the default SSID (linksys) to a unique name.
Channel Width For best performance in a Wireless-N
network, select 40MHz only. For Wireless-G and Wireless-B networking only, keep the default, 20MHz only. If you are not sure which option to use, select Auto (20MHz or
40MHz).
NOTE: If you select 40MHz only for the Channel
Width setting, then Wireless-N can use two channels: a primary one (Wide Channel) and a secondary one (Standard Channel). This will enhance Wireless-N performance.
Wide Channel If 40MHz only is the Channel Width
setting, then this setting will be available for your primary
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Wireless-N channel. Select any channel from the drop­down menu. If you are not sure which channel to select, keep the default, Auto.
Standard Channel If 20MHz only is the Channel Width
setting, then select the appropriate channel for your wireless network. If you are not sure which channel to select, then keep the default, Auto.
If 40MHz only is the Channel Width setting, then the Standard Channel will be a secondary channel for Wireless-N (2.4 GHz). If you selected a specific channel for the Wide Channel setting, then the Standard Channel options will be available. Select the appropriate channel for your wireless network.
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, Enabled. If you do not want to broadcast the Router’s SSID, then select Disabled.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
Wi-Fi Protected Setup
There are three methods available. Use the method that applies to the client device you are configuring.
Advanced Configuration
Wi-Fi Protected Setup Configured
NOTE: Wi-Fi Protected Setup configures one
client device at a time. Repeat the instructions for each client device that supports Wi-Fi Protected Setup.
Method #1
Wireless > Basic Wireless Settings (Wi-Fi Protected Setup)
Wireless-N Home Router
Use this method if your client device has a Wi-Fi Protected Setup button.
1. Click or press the Wi-Fi Protected Setup button on
the client device.
2. Click the Wi-Fi Protected Setup button on this
screen.
3. After the client device has been configured, click
OK. Then refer back to your client device or its documentation for further instructions.
Wi-Fi Protected Setup > Congratulations
Method #2
Use this method if your client device has a Wi-Fi Protected Setup PIN number.
1. Enter the PIN number in the field on this screen.
2. Click Register.
3. After the client device has been configured, click
OK. Then refer back to your client device or its documentation for further instructions.
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Method #3
Use this method if your client device asks for the Router’s PIN number.
1. Enter the PIN number listed on this screen. (It is also listed on the label on the bottom of the Router.)
2. After the client device has been configured, click OK. Then refer back to your client device or its documentation for further instructions.
The Wi-Fi Protected Setup Status, Network Name (SSID), Security, Encryption, and Passphrase are displayed at the bottom of the screen.
NOTE: If you have client devices that do not
support Wi-Fi Protected Setup, note the wireless settings, and then manually configure those client devices.

Wireless > Wireless Security

The Wireless Security screen configures the security of your wireless network. There are six wireless security mode options supported by the Router: WPA Personal, WPA Enterprise, WPA2 Personal, WPA2 Enterprise, RADIUS, and WEP. (WPA stands for Wi-Fi Protected Access, which is a security standard stronger than WEP encryption. WEP stands for Wired Equivalent Privacy, while RADIUS stands for Remote Authentication Dial-In User Service.) These six are briefly discussed here. For detailed instructions on configuring wireless security for the Router, refer to Chapter 2: Wireless Security Checklist, page 3.
WPA Personal
NOTE: If you are using WPA, then each device in
your wireless network MUST use the same WPA method and shared key, or else the network will not function properly.
Security Mode > WPA Personal
Passphrase Enter a Passphrase of 8-63 characters.
Key Renewal Enter a Key Renewal period, which instructs
the Router how often it should change the encryption keys. The default is 3600 seconds.
WPA2 Personal
Wireless Security
Security Mode
Select the security method for your wireless network. If you do not want to use wireless security, keep the default, Disabled.
Security Mode > WPA2 Personal
Encryption WPA2 supports two encryption methods,
TKIP and AES, with dynamic encryption keys. Select the type of algorithm, AES or TKIP or AES. The default is TKIP
or AES.
Passphrase Enter a Passphrase of 8-63 characters.
Key Renewal Enter a Key Renewal period, which instructs
the Router how often it should change the encryption keys. The default is 3600 seconds.
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WPA Enterprise
This option features WPA used with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.)
Security Mode > WPA Enterprise
RADIUS Server Enter the IP address of the server.
RADIUS Port Enter the port number of the server. The
default is 1812.
Shared Secret Enter the key shared between the Router
and the server.
Shared Secret Enter the key shared between the Router
and the server.
Key Renewal Enter a Key Renewal period, which instructs
the Router how often it should change the encryption keys. The default is 3600 seconds.
RADIUS
This option features WEP used with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.)
IMPORTANT: If you are using WEP, then each
device in your wireless network MUST use the same WEP encryption method and key, or else the network will not function properly.
Key Renewal Enter a Key Renewal period, which instructs
the Router how often it should change the encryption keys. The default is 3600 seconds.
WPA2 Enterprise
This option features WPA2 used with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.)
Security Mode > WPA2 Enterprise
Encryption WPA2 supports two encryption methods,
TKIP and AES, with dynamic encryption keys. Select the type of algorithm, AES or TKIP or AES. The default is TKIP or AES.
Security Mode > RADIUS
RADIUS Server Enter the IP address of the server.
RADIUS Port Enter the port number of the server. The
default is 1812.
Shared Secret Enter the key shared between the Router
and the server.
Encryption Select a level of WEP encryption,
40/64 bits (10 hex digits) or 104/128 bits (26 hex digits). The default is 40/64 bits (10 hex digits).
Passphrase Enter a Passphrase to automatically generate
WEP keys. Then click Generate.
Key 1 If you did not enter a Passphrase, enter the WEP
key manually.
TX Key TX (Transmit) Key 1 is used.
RADIUS Server Enter the IP address of the server.
RADIUS Port Enter the port number of the server. The
default is 1812.
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WEP
WEP is a basic encryption method, which is not as secure as WPA.
IMPORTANT: If you are using WEP encryption,
then each device in your wireless network MUST use the same WEP encryption method and key, or else the network will not function properly.
Security Mode > WEP
Encryption Select a level of WEP encryption,
40/64 bits (10 hex digits) or 104/128 bits (26 hex digits). The default is 40/64 bits (10 hex digits).
Passphrase Enter a Passphrase to automatically generate
WEP keys. Then click Generate.
Key 1 If you did not enter a Passphrase, enter the WEP
key manually.

Wireless > Wireless MAC Filter

Wireless access can be filtered by using the MAC addresses of the wireless devices transmitting within your network’s radius.
Wireless > Wireless MAC Filter
Wireless MAC Filter
Enabled/Disabled
either permitting or blocking access, select Enabled. If you do not wish to filter users by MAC Address, keep the default,
Disabled
.
To filter wireless users by MAC Address,
TX Key TX (Transmit) Key 1 is used.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
Access Restriction
Prevent Select this option to block wireless access by
MAC Address. This button is selected by default.
Permit Select this option to allow wireless access by MAC
Address. This button is not selected by default.
MAC Address Filter List
Wireless Client List Click this button to open the Wireless
Client List screen.
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Wireless Client List
Wireless Client List
This screen shows computers and other devices on the wireless network. The list can be sorted by Client Name, IP Address, MAC Address, and Status.
Select Save to MAC Address Filter List for any device you want to add to the MAC Address Filter List. Then click Add.
To update the on-screen information, click Refresh. To exit this screen and return to the Wireless MAC Filter screen, click Close.
MAC 01-32 Enter the MAC addresses of the devices
whose wireless access you want to block or allow.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Wireless > Advanced Wireless Settings

This Advanced Wireless Settings screen 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 Configuration
Advanced Wireless
AP Isolation This option isolates all wireless clients and
wireless devices on your network from each other. Wireless devices will be able to communicate with the Router but not with each other. To use this option, select Enable. AP Isolation is disabled by default.
Frame Burst This option should provide your network
with greater performance, depending on the manufacturer of your wireless products. To use this option, keep the default, Enable. To disable this option, select Disable.
Authentication Type The Authentication Type setting
is available if the Security Mode is RADIUS or WEP. The default is set to Auto, which 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. Select Shared Key to only use Shared Key authentication.
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 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.) 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 Auto, when the Router can transmit at all standard wireless rates (1-2 Mbps, 5.5 Mbps, 11 Mbps, 18 Mbps, and 24Mbps). Select 1-2Mbps for use with older wireless technology. Select All, when the Router can transmit at all wireless rates.
Wireless > Advanced Wireless Settings
Wireless-N Home Router
Transmission Rate The Transmission setting is available
if the Network Mode is BG-Mixed, Wireless-G Only, or Wireless-B Only. The rate of data transmission should be set depending on the speed of your wireless network. Select from a range of transmission speeds, or keep the default, Auto, 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.
N Transmission Rate The N Transmission setting is
available if the Network Mode is Mixed or Wireless-N Only. The rate of data transmission should be set depending on the speed of your Wireless-N networking. Select from a range of transmission speeds, or keep the default, Auto, 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.
CTS Protection Mode The Router automatically uses CTS
(Clear-To-Send) Protection Mode when your Wireless-N and
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Wireless-G devices are experiencing severe problems and are not able to transmit to the Router in an environment with heavy 802.11b traffic. This option boosts the Router’s ability to catch all Wireless-N and Wireless-G transmissions but severely decreases performance. To use this option, keep the default, Auto. To disable this option, select
Disabled.
Beacon Interval Enter a value between 1 and 65,535
milliseconds. 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. The default is 100 milliseconds.
Advanced Configuration
DTIM Interval This value, between 1 and 255, 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.
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.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Security > Firewall

Firewall
SPI Firewall Protection To use firewall protection,
keep the default selection, Enabled. To turn off firewall protection, select Disabled.
Internet Filter
For the following options, select the option to enable it, or deselect the option to disable it.
Filter Anonymous Internet Requests This feature makes
it more difficult for outside users to work their way into your network. This feature is enabled by default. Deselect this option 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 this option to filter multicasting. This option is disabled by default.
Filter Internet NAT Redirection This feature uses port
forwarding to block access to local servers from local networked computers. Select this option to filter Internet NAT redirection. This option is disabled by default.
Filter IDENT (Port 113) This feature keeps port 113 from
being scanned by devices outside of your local network. This feature is enabled by default. Deselect this option to disable it.
.
Security > Firewall
The Firewall screen is used to configure a firewall that can filter out various types of unwanted traffic on the Router’s local network.
Wireless-N Home Router
Web Filter
For the following options, select the option to enable it, or deselect the option to disable it.
Proxy Use of WAN proxy servers may compromise the
Gateway’s security. Denying Proxy will disable access to any WAN proxy servers. Select this option to enable proxy filtering. This option is disabled by default.
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. Select
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this option to enable Java filtering. This option is disabled by default.
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. Select this option to enable ActiveX filtering. This option is disabled by default.
Cookies A cookie is data stored on your computer and
used by Internet sites when you interact with them. Select this option to filter cookies. This option is disabled by default.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Security > VPN Passthrough

The VPN Passthrough screen allows you to enable VPN tunnels using IPSec, PPTP, or L2TP protocols to pass through the Router’s firewall.

Access Restrictions > Internet Access

The Internet Access screen allows you to block or allow specific kinds of Internet usage and traffic, such as Internet access, designated services, and websites during specific days and times.
Security > VPN Passthrough
VPN Passthrough
IPSec Passthrough Internet Protocol Security (IPSec) is
a suite of protocols used to implement secure exchange of packets at the IP layer. To allow IPSec tunnels to pass through the Router, keep the default, Enabled.
PPTP Passthrough Point-to-Point Tunneling Protocol
(PPTP) allows the Point-to-Point Protocol (PPP) to be tunneled through an IP network. To allow PPTP tunnels to pass through the Router, keep the default, Enabled.
L2TP Passthrough Layer 2 Tunneling Protocol is the
method used to enable Point-to-Point sessions via the Internet on the Layer 2 level. To allow L2TP tunnels to pass through the Router, keep the default, Enabled.
Click Save Settings to apply your changes, or click Cancel
Changes to clear your changes.
Wireless-N Home Router
Access Restrictions > Internet Access
Internet Access Policy
Access Policy Access can be managed by a policy. Use
the settings on this screen to establish an access policy (after Save Settings 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 Delete This Entry. To view all the policies, click Summary.
Summary
The policies are listed with the following information: No., Policy Name, Days, and Time of Day. To delete a policy, select the policy’s Delete option, and then click Delete. To return to the Internet Access Policy screen, click Close.
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Summary
Status Policies are disabled by default. To enable a policy,
select the policy number from the drop-down menu, and select Enabled.
Advanced Configuration
To create a policy, follow steps 1-11. Repeat these steps to create additional policies, one at a time.
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 Enabled.
4. Click Edit List to select which computers will be affected by the policy. The Internet Access PC List screen appears. You can select a computer 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 computers. After making your changes, click Save Settings to apply your changes, or click Cancel Changes to clear your changes. Then click Close.
Internet Access PC List
5. Select the appropriate option, Deny or Allow,
depending on whether you want to block or allow Internet access for the computers you listed on the Internet Access PC List 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 block websites with specific URL addresses. Enter each URL in a separate Website Blocking by URL Address field.
8. You can also block websites using specific keywords. Enter each keyword in a separate Website Blocking by Keyword field.
9. You can filter access to various services accessed over the Internet, such as FTP or telnet. (You can block up to three applications per policy.)
From the Applications list, select the application you want to block. Then click the >> button to move it to the Blocked List. To remove an application from the Blocked List, select it and click the << button.
10. If the application you want to block is not listed or you want to edit a service’s settings, enter the application’s name in the Application Name field. Enter its range in the Port Range fields. Select its protocol from the Protocol drop-down menu. Then click Add.
To modify a service, select it from the Application list. Change its name, port range, and/or protocol setting. Then click Modify.
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To delete a service, select it from the Application list. Then click Delete.
11. Click Save Settings to save the policy’s settings, or click Cancel Changes to clear the changes.

Applications and Gaming > Single Port Forwarding

The Single Port Forwarding screen allows you to customize port services for common applications on this screen.
When users send these types of requests to your network via the Internet, the Router will forward those requests to the appropriate servers (computers). Before using forwarding, you should assign static IP addresses to the designated servers (use the DHCP Reservation feature on the Basic Setup screen; refer to DHCP Reservation, page 7).
To IP Address For each application, enter the IP address
of the computer that should receive the requests. If you assigned a static IP address to the computer, then you can look up its IP address; click DHCP Reservation on the Basic Setup screen (r
Enabled For each application, select Enabled to enable
port forwarding.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
efer to DHCP Reservation, page 7).

Applications and Gaming > 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.)
When users send these types of requests to your network via the Internet, the Router will forward those requests to the appropriate servers (computers). Before using forwarding, you should assign static IP addresses to the designated servers (use the DHCP Reservation feature on the Basic Setup screen; refer to DHCP Reservation, page 7).
Applications and Gaming > Single Port Forwarding
Single Port Forwarding
Common applications are available for the first five entries. Select the appropriate application. Then enter the IP address of the server that should receive these requests. Select Enabled to activate this entry.
For additional applications, complete the following fields:
Application Name Enter the name you wish to give the
application. Each name can be up to 12 characters.
External Port Enter the external port number used by
the server or Internet application. Check with the Internet application documentation for more information.
Internal Port Enter the internal port number used by
the server or Internet application. Check with the Internet application documentation for more information.
Protocol Select the protocol(s) used for this application,
TCP, UDP, or Both.
Wireless-N Home Router
If you need to forward all ports to one computer, click the DMZ tab.
Applications and Gaming > Port Range Forwarding
Port Range Forwarding
To forward a port, enter the information on each line for the criteria required.
Application Name In this field, enter the name you
wish to give the application. Each name can be up to 12 characters.
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Start~End Port Enter the number or range of port(s)
used by the server or Internet applications. Check with the Internet application documentation for more information.
Protocol Select the protocol(s) used for this application,
TCP, UDP, or Both.
To IP Address For each application, enter the IP address
of the computer that should receive the requests. If you assigned a static IP address to the computer, then you can look up its IP address; click DHCP Reservation on the Basic Setup screen (r
Enabled Select Enabled to enable port forwarding for
the applications you have defined.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
efer to DHCP Reservation, page 7).

Applications & Gaming > 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.
Forwarded Range For each application, enter the starting
and ending port numbers of the forwarded port number range. Check with the Internet application documentation for the port number(s) needed.
Enabled Select Enabled to enable port triggering for the
applications you have defined.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Applications and Gaming > DMZ

The DMZ feature allows one network computer 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 computer. 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.
Applications and Gaming > Port Range Triggering
Port Range Triggering
Application Name Enter the application name of the
trigger.
Triggered Range For each application, enter the starting
and ending port numbers of the triggered port number range. Check with the Internet application documentation for the port number(s) needed.
Wireless-N Home Router
Applications and Gaming > DMZ
DMZ
Any computer 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.
Enabled/Disabled To disable DMZ hosting, select
Disabled. To expose one computer, select Enabled. Then
configure the following settings:
Source IP Address If you want any IP address to be the
source, select Any IP Address. If you want to specify an IP address or range of IP addresses as the designated source, select and complete the IP address range fields.
Destination If you want to specify the DMZ host by IP
address, select IP Address and enter the IP address in the field provided. If you want to specify the DMZ host
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by MAC address, select MAC Address and enter the MAC address in the field provided. To retrieve this information, click DHCP Client Table.
DMZ > DHCP Client Table
DHCP Client Table
The DHCP Client Table lists computers and other devices that have been assigned IP addresses by the Router. The list can be sorted by Client Name, Interface, IP Address, MAC Address, and Expires time (how much time is left for the current IP address). To select a DHCP client, click Select. To update the on-screen information, click Refresh. To exit this screen and return to the DMZ screen, click Close.
Click Save Settings to apply your changes, or click Cancel
Changes to clear your changes.
WMM Support If you have other devices that support
Wi-Fi Multimedia (WMM) on your network, keep the default, Enabled. Otherwise, select Disabled.
No Acknowledgement If you want to disable the Router’s
Acknowledgement feature, so the Router will not re-send data if an error occurs, then select Enabled. Otherwise, keep the default, Disabled.
Internet Access Priority
In this section, you can set the bandwidth priority for a variety of applications and devices. There are four levels priority: High, Medium, Normal, or Low. When you set priority, do not set all applications to High, because this will defeat the purpose of allocating the available bandwidth. If you want to select below normal bandwidth, select Low. Depending on the application, a few attempts may be needed to set the appropriate bandwidth priority.
Enabled/Disabled To use the QoS policies you have set,
keep the default, Enabled. Otherwise, select Disabled.
Category
Select one of the following categories: Applications, Online Games, MAC Address, Ethernet Port, or Voice Device. Proceed to the instructions for your selection.
Summary

Applications and Gaming > QoS

Quality of Service (QoS) ensures better service to high-priority types of network traffic, which may involve demanding, real-time applications, such as videoconferencing.
Applications and Gaming > QoS
QoS (Quality of Service)
Wireless
You can configure the support and No Acknowledgement settings in this section.
This lists the QoS entries you have created for your applications and devices. Refer to Summary, page 22 for more information.
Applications
Application Select the appropriate application. If you
select Add a New Application, follow the Add a New Application instructions.
Priority Select the appropriate priority: High, Medium
(Recommend), Normal, or Low.
Click Add to save your changes. Your new entry appears in the Summary list.
Add a New Application
QoS > Add a New Application
Enter a Name Enter any name to indicate the name of
the entry.
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Port Range Enter the port range that the application will
be using. For example, if you want to allocate bandwidth for FTP, you can enter 21-21. If you need services for an application that uses from 1000 to 1250, you enter 1000­1250 as your settings. You can have up to three ranges to define for this bandwidth allocation. Port numbers can range from 1 to 65535. Check your application’s documentation for details on the service ports used.
Select the protocol TCP or UDP, or select Both.
Priority Select the appropriate priority: High, Medium
(Recommend), Normal, or Low.
Click Add to save your changes. Your new entry appears in the Summary list.
Online Games
QoS > Online Games
Game Select the appropriate game. If you select Add a
New Game, follow the Add a New Game instructions.
Priority Select the appropriate priority: High, Medium
(Recommend), Normal, or Low.
Click Add to save your changes. Your new entry appears in the Summary list.
Add a New Game
MAC Address
QoS > MAC Address
Enter a Name Enter a name for your device.
MAC Address Enter the MAC address of your device.
Priority Select the appropriate priority: High, Medium
(Recommend), Normal, or Low.
Click Add to save your changes. Your new entry appears in the Summary list.
Ethernet Port
QoS > Ethernet Port
Ethernet Select the appropriate Ethernet port.
Priority Select the appropriate priority: High, Medium
(Recommend), Normal, or Low.
Click Add to save your changes. Your new entry appears in the Summary list.
Voice Device
QoS > Add a New Game
Enter a Name Enter any name to indicate the name of
the entry.
Port Range Enter the port range that the game will be
using. You can have up to three ranges to define for this bandwidth allocation. Port numbers can range from 1 to
65535. Check your application’s documentation for details
on the service ports used.
Select the protocol TCP or UDP, or select Both.
Priority Select the appropriate priority: High, Medium
(Recommend), Normal, or Low.
Click Add to save your changes. Your new entry appears in the Summary list.
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QoS > Voice Device
My Voice Device’s MAC Address The MAC address of
your voice device is automatically displayed.
Enter a Name Enter a name for your voice device.
MAC Address Enter the MAC address of your voice
device.
Priority Select the appropriate priority: High
(Recommend), Medium, Normal, or Low.
Click Add to save your changes. Your new entry appears in the Summary list.
Summary
This lists the QoS entries you have created for your applications and devices.
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Priority This column displays the bandwidth priority of
High, Medium, Normal, or Low.
Name This column displays the application, device, or
port name.
Information This column displays the port range or
MAC address entered for your entry. If a pre-configured application or game was selected, there will be no valid entry shown in this section.
Remove Click this button to remove an entry.
Edit Click this button to make changes.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Administration > Management

The Administration > Management screen allows the network’s administrator to manage specific Router functions for access and security.
Local Management Access
Access via HTTP (HyperText Transport Protocol) is the
communications protocol used to connect to servers on the World Wide Web. HTTPS uses SSL (Secured Socket Layer) to encrypt data transmitted for higher security. Select HTTP or HTTPS. HTTP is the default.
Access via Wireless If you are using the Router in a public
domain where you are giving wireless access to your guests, you can disable wireless access to the Router’s browser-based utility. You will only be able to access the utility via a wired connection if you disable the setting. Keep the default, Enabled, to allow wireless access to the utility, or select Disabled to block wireless access to the utility.
Remote Management Access
Remote Management To permit remote access of the
Router, from outside the local network, select Enabled. Otherwise, keep the default, Disabled.
Access via HTTP (HyperText Transport Protocol) is the
communications protocol used to connect to servers on the World Wide Web. HTTPS uses SSL (Secured Socket Layer) to encrypt data transmitted for higher security. Select HTTP or HTTPS. HTTP is the default.
Administration > Management
Management
Router Access
To ensure the Router’s security, you will be asked for your password when you access the Router’s browser-based utility. The default is admin.
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,
Disabled.
Allowed 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.
NOTE: When you are in a remote location
and wish to manage the Router, enter
http://xxx.xxx.xxx.xxx:yyyy or https://xxx.xxx.xxx.xxx:yyyy, depending
on whether you use HTTP or HTTPS. Enter the Router’s specific Internet IP address in place of xxx.xxx.xxx.xxx, and enter the Remote Management Port number in place of yyyy.
Router Password Enter a new password for the Router.
Re-enter to confirm Enter the password again to
confirm.
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UPnP
Universal Plug and Play (UPnP) allows the appropriate Windows operating system to automatically configure the Router for various Internet applications, such as gaming and videoconferencing.
UPnP To use UPnP, keep the default, Enabled. Otherwise,
select Disabled.
Allow Users to Configure Keep the default, 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 Select Enabled,
if you want to be able to prohibit any and all Internet connections. Otherwise, keep the default, Disabled.
Backup and Restore
Backup Configuration To back up the Router’s
configuration settings, click this button and follow the on-screen instructions.
Restore Configuration To restore the Router’s
configuration settings, click this button and follow the on-screen instructions. (You must have previously backed up the Router’s configuration settings.)
System Reboot
Start to Reboot If you need to restart the Router, click
this button.
Advanced Configuration
Log > View Log
Log
• Type Select Incoming Log, Outgoing Log, Security
Log, or DHCP Client Log.
<Type> Log The Incoming Log displays a temporary
log of the source IP addresses and destination port numbers for the incoming Internet traffic. The Outgoing Log displays a temporary log of the local IP addresses, destination URLs/IP addresses, and service/ port numbers for the outgoing Internet traffic. The Security log displays the login information for the browser-based utility. The DHCP Client Log displays the LAN DHCP server status information.
Click Save the Log to save this information to a file on your computer’s hard drive. Click Refresh to update the log. Click Clear to clear all the information that is displayed.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Administration > Log

The Router can keep logs of all traffic for your Internet connection.
Administration > Log
Log
Enabled/Disabled To disable the Log function, select
Disabled. To monitor traffic between the network and the
Internet, keep the default, Enabled. With logging enabled, you can choose to view temporary logs.

Administration > Diagnostics

The diagnostic tests (Ping and Traceroute) allow you to check the connections of your network devices, including connection to the Internet.
Administration > Diagnostics
View Log To view the logs, click View Log.
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Diagnostics
Ping Test
Ping checks the status of a connection.
IP or URL Address Enter the address of the computer
whose connection you wish to test.
Packet Size Enter the packet size you want to use. The
default is 32 bytes.
Number to Ping Enter the number of times you wish to
test the connection. The default is 5.
Start to Ping To run the test, click this button. The Ping
screen shows if the test is successful. Click Close to return to the Diagnostics screen.

Administration > Factory Defaults

Restore the Router to its factory default settings.
Administration > Factory Defaults
NOTE: Do not restore the factory defaults unless
you are having difficulties with the Router and have exhausted all other troubleshooting measures. Once the Router is reset, you will have to re-enter all of your configuration settings.
Factory Defaults
Restore All Settings To reset the Router’s settings to the
defaults, click this button and then follow the on-screen instructions. Any custom settings you have saved will be lost when the default settings are restored.
Diagnostics > Ping
Traceroute Test
Traceroute checks the performance of a connection.
IP or URL Address Enter the address of the computer
whose connection you wish to test.
Start to Traceroute To run the test, click this button. The
Traceroute screen shows if the test is successful. Click Close to return to the Diagnostics screen.
Diagnostics > Traceroute

Administration > Firmware Upgrade

The Firmware Upgrade screen allows you to upgrade the Router’s firmware. Do not upgrade the firmware unless you are experiencing problems with the Router or the new firmware has a feature you want to use.
Administration > Firmware Upgrade
NOTE: The Router may lose the settings you
have customized. Before you upgrade its firmware, write down all of your custom settings. After you upgrade its firmware, you may have to re-enter all of your configuration settings.
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Firmware Upgrade
Before upgrading the firmware, download the Router’s firmware upgrade file from the Linksys website,
www.linksysbycisco.com.
Please select a file to upgrade To select the firmware
upgrade file, click Browse and follow the on-screen instructions.
Start to Upgrade After you have selected the
appropriate file, click this button, and f instructions.
WARNING: The firmware upgrade must not
be interrupted; do not reboot or power off the Router during the firmware upgrade.
ollow the on-screen

Status > Router

The Router screen displays information about the Router and its current settings.
Domain Name The Domain Name of the Router is
displayed (if it was entered on the Setup > Basic Setup screen).
Internet Connection
This section shows the current network information stored in the Router. The information varies depending on the Internet connection type selected on the Setup > Basic Setup screen.
Select Release IP Address or Renew IP Address as appropriate to release or renew a DHCP lease.
Click Refresh to update the on-screen information.

Status > Local Network

The Local Network screen displays information about the local, wired network.
Status > Router
Router Information
Firmware Version The version number of the Router’s
current firmware is displayed.
Boot Code Version The version number of the Router’s
boot code is displayed.
Firmware Verification The unique identifier of the
firmware is displayed.
Current Time The time set on the Router is displayed.
Internet MAC Address The Router’s MAC Address, as
seen by your ISP, is displayed.
Host Name The Host Name of the Router is displayed (if it
was entered on the Setup > Basic Setup screen).
Status > Local Network
Local Network
Local MAC Address The MAC address of the Router’s
local, wired interface is displayed.
Router IP Address The Router’s IP address, as it appears
on your local network, is displayed.
Subnet Mask The Subnet Mask of the Router is
displayed.
DHCP Server
DHCP Server The status of the Router’s DHCP server
function is displayed.
Start IP Address For the range of IP addresses that can
be used by devices on your local network, the starting IP address is displayed.
End IP Address For the range of IP addresses that can
be used by devices on your local network, the ending IP address is displayed.
DHCP Clients Table Click this button to view a list of
computers or other devices that are using the Router as a DHCP server.
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