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Linksys E2100L User Manual

User Guide
Linksys E2100L
Advanced Wireless-N Router
Linksys E2100L Table of Contents
Contents
Chapter 1: Product Overview 1
Chapter 2: Cisco Connect 3
Chapter 3: Advanced Configuration 11
Advanced Wireless-N Router
ii
Linksys E2100L Table of Contents
Appendix A: Troubleshooting 41
Appendix B: How to Install and Access USB Storage 43
Advanced Configuration
Appendix C: Specifications 56
Appendix D: Warranty Information 57
Appendix E: Regulatory Information 59
User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste
Appendix F: Software End User License Agreement 61
Advanced Wireless-N Router
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Linksys E2100L Chapter 1: Product Overview

Chapter 1: Product Overview

Thank you for choosing the Linksys E2100L Advanced Wireless-N 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. The Router’s USB port connects to a USB storage device, so you can access your portable files. (A USB hard drive may require an external power supply.)
A variety of security features help to protect your data and your privacy while you are online. Security features include Wi-Fi Protected Access 2 (WPA2) security, which encrypts data on your wireless network; a Stateful Packet Inspection (SPI) firewall to help block unauthorized access to your Router; and Network Address Translation (NAT) technology, which enhances network protection by allowing your computers to share Internet access through a single, public Internet (IP) address. (IP stands for Internet Protocol.)
Setup and use of the Router is easy using Cisco Connect, the software that is installed when you run the included CD. Advanced configuration of the Router is available through the provided browser-based utility.
Top
1, 2, 3, 4 (Blue) These numbered LEDs,
corresponding with the numbered ports on the Router’s back panel, serve two purposes. The LED is continuously lit when the Router is connected to a device through that port. It flashes to indicate 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 the Wi-Fi Protected Setup button to automatically configure wireless security for your wireless network.

Back

Wireless (Blue) The Wireless LED lights up
when the wireless feature is enabled. It flashes when the Router sends or receives data over the wireless 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 when
the Router is powered on. When the Router goes through its self-diagnostic mode during every boot-up, the LED flashes. When the diagnostic is complete, the LED is continuously lit.
Internet Ethernet4 3 2 1
12VDC
USB
Power
Antenna Ports The female R-SMA antenna
ports connect to the male R-SMA connectors of the included antennas.
Internet Using an Ethernet cable (also called
a network or Internet cable), the Internet port connects the Router to your Internet connection, which is typically a cable or Digital Subscriber Line (DSL) modem.
4, 3, 2, 1 Using Ethernet cables, these Ethernet
ports (4, 3, 2, 1) connect the Router to computers and other Ethernet network devices on your wired network.
USB Port The USB port connects to a USB
storage device. If the storage device does not fit (for example, it may block port 1), then use the included USB extension cable.
Power The Power port connects to the
included power adapter.
To use Wi-Fi Protected Setup, refer to Wi-Fi Protected Setup, page 18.
Advanced Wireless-N Router
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Linksys E2100L Chapter 1: Product Overview

Bottom

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 in the Router’s browser-based utility (refer to Administration > Factory Defaults, page 39).

Horizontal Placement

The Router has four rubber feet on its bottom panel. Place the Router on a level surface near an electrical outlet.

Wall-Mounting Placement

The Router has two wall-mount slots on its bottom panel. The distance between the slots is 152 mm.
Two screws are needed to mount the Router.
Suggested Mounting Hardware
2.5-3.0 mm
4-5 mm 1-1.5 mm
NOTE: Cisco is not responsible for damages
incurred by unsecured 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 apart.
3. Insert a screw into each hole and leave 3 mm of its head exposed.
4. Position 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.
Advanced Wireless-N 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
Linksys E2100L Chapter 2: Cisco Connect
DVD/CD-RW Drive (E:) Linksys Router Setup
Always do this for software and games:
Install or run program
General options
Set up your Linksys Router
Published by Cisco Consumer Products LLC
Open folder to view files
using Windows Explorer

Chapter 2: Cisco Connect

During installation, the setup software installs Cisco Connect on your computer. Cisco Connect offers options to connect additional computers or devices to the Router and allows you to change the Router’s settings.

Installation

To install the Router:
1. Attach the antennas to the Router.
Internet Ethernet4 3 2 1
Attach Antennas
2. Insert the CD into your CD-ROM drive.
12VDC
USB
Power
If you do not see this, access setup on the CD directly. To do so, perform the following steps for your specific operating system:
Windows 7
a. Go to Start > Computer.
b. Double-click your CD-ROM drive.
Windows Vista
a. Go to Start > Computer.
b. Double-click your CD-ROM drive.
Windows XP
a. Go to Start > My Computer and select your
CD-ROM drive.
b. Double-click Setup.exe.
Mac OS X
a. Double-click the CD on your desktop.
b. Double-click Setup.
4. Read the Software End User License Agreement. To accept the agreement and continue with the installation, click Next.
3. Click Set up your Linksys Router.
Advanced Wireless-N Router
Insert CD
AutoPlay
DVD/CD-RW Drive (E:) Linksys Router Setup
Always do this for software and games:
Install or run program
Set up your Linksys Router
Published by Cisco Consumer Products LLC
General options
Open folder to view files
using Windows Explorer
Speed up my system
using Windows ReadyBoost
Set AutoPlay defaults in Control Panel
Set Up Your Linksys Router
License Agreement
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Linksys E2100L Chapter 2: Cisco Connect
5. The connection steps are displayed.
Connection Overview
a. Plug the power cord into the Power port on the
back of the Router.
c. Unplug the existing Ethernet cable from your
computer and plug it into the yellow port labeled Internet on the back of the Router. Click Next.
Internet Ethernet4 3 2 1
Connect Ethernet Cable
12VDC
USB
Power
NOTE: You can view detailed connection steps
by clicking in the setup software.
Internet Ethernet4 3 2 1
12VDC
USB
Power
Connect to Power Port
b. Plug the power adapter into an electrical outlet.
Connect to Electrical Outlet
NOTE: If the setup software detects multiple
routers, then select the serial number of your Router. The serial number is located on the left side of the product label, which is on the bottom of the Router.
6. Please wait while the setup software is setting up the Router.
Please Wait
Advanced Wireless-N Router
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Linksys E2100L Chapter 2: Cisco Connect
7. The installation is complete. Click OK.
Installation is Complete
NOTE: If you have any trouble during the
installation process, refer to the Frequently Asked Questions in the setup software, or use a computer with an active Internet connection to visit www.linksys.com/support.

Main Menu

When Cisco Connect starts up, the main menu appears:
The main menu offers three options: Computers and devices, Guest access, and Router settings.
NOTE: To view the FAQs for more information,
click Need help?
Local Access versus Guest Access
Cisco Connect offers two types of access: local access (Computers  and  devices option) and guest access (Guest  access option).
With local access, computers and devices will have access to the Internet and to other devices on your local network, including shared computers and printers, which are connected to the Router. Local access can be given to a wireless or wired device. Refer to Computers and Other Devices, page 6 for more information.
Guest access allows you to provide Internet access to guests visiting your home. Your guests will not have access to computers and devices on your local network, so they will not have access to your personal data. Guest computers must connect to your network using a wireless network connection. Provide your guest with the guest network name and password. Refer to Main Menu – Guest Access, page 6 and Guest Access, page 8 for more information.
Main Menu
Status information is displayed in the upper right corner:
• online secure
Your local network is secure, and your Internet connection is available.
• offline secure
Your local network is secure; however, your Internet connection is not available. To repair your Internet connection, follow the on-screen instructions.
NOTE: A group of computers or other devices
connected to a router is a local network. The router allows the networked devices to communicate with each other.
The following diagram shows a typical example of how local access and guest access are used in the same home.
Guest Access versus Local Access Diagram
Internet
Printer
Modem
Router
Guest Notebook
Guest Access (Internet Access Only)
Local Access
Family Notebook
1
2
1
2
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Linksys E2100L Chapter 2: Cisco Connect
Main Menu – Computers and Devices
Use this option to connect another computer or device to the Router.
There is x device(s) connected to your router The
number of devices connected to the Router is displayed.
Add device To connect another computer or
device to the Router, click Add device and go to Computers and Other Devices, page 6.
Main Menu – Guest Access
Guest access provides Internet access only; it does not provide access to the local network and its resources. For example, the guest computer cannot print to a printer on the local network or copy files to a computer on the local network.
Guest access helps minimize exposure of your local network. To grant Internet access to friends or family, provide the guest network name and password displayed on this screen.
Guests can connect to x-guest using the password xyz When a guest wants Internet access in your home,
have the guest do the following:
1. Connect to the wireless guest network, which is the name of your wireless network followed by -guest.
2. Open a web browser.
3. On the login screen, enter the password of your guest network. Then click Login.
Change To disable guest access or change settings, click
Change and go to Guest Access, page 8.
Computer Click this option to connect another computer
in your home. Go to Computer, page 6.
Wireless Printer Click this option to connect a wireless
printer. Go to Wireless Printer, page 8.
Device Click this option to connect a device that is not a
computer, such as a smartphone or game console. Go to Connect Manually, page 7.
Computer
You can use a USB flash drive to create an Easy Setup Key, which holds the wireless settings for the Router. Then you can use the Easy Setup Key to connect additional computers to the Router. Select the appropriate option:
Yes, I have an Easy Setup Key If you already have an
Easy Setup Key, select this option. Click Next and go to Connect with the Easy Setup Key, page 6.
No, I don’t have an Easy Setup Key — create a new one now If you want to create or update an Easy
Setup Key, select this option. Click Next and go to Create or Update the Easy Setup Key, page 7.
I want to connect manually using my wireless settings If you want to connect manually (without an
Easy Setup Key), select this option. Click Next and go to Connect Manually, page 7.
Main Menu – Router Settings
Use this option to personalize the Router’s settings.
Router name is x The name of the Router is displayed.
Change To change settings, click Change and go to
Router Settings, page 9.

Computers and Other Devices

The Computers and other devices screen appears.
Computers and Other Devices
Advanced Wireless-N Router
Do You Have an Easy Setup Key?
Connect with the Easy Setup Key
1. Insert the Easy Setup Key into an available USB port on the computer that you want to connect to the Router.
Connecting Another Computer
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Linksys E2100L Chapter 2: Cisco Connect
2. On that computer, click Connect to your Linksys Router. (If you do not see this, access the Easy Setup Key through Windows Explorer or the Finder, and double-click Connect.)
Follow the on-screen instructions to connect that computer to the Router.
3. Come back to this computer. On the Connecting  another computer screen, click Next.
4. Enter a name that will be used to identify the newly added computer. Then click Finish.
Name Your Device
2. Please wait while settings are copied to the Easy Setup Key.
Copying Files to the Easy Setup Key
3. Remove the Easy Setup Key. You can now use it to connect other computers to the Router (for more information, refer to Connect with the Easy Setup Key, page 6). Click Close.
Create or Update the Easy Setup Key
If you do not have an Easy Setup Key, then you can create one using a USB flash drive. If you already have an Easy Setup Key, then you can update it with the Router’s current settings.
1. Insert the Easy Setup Key or a USB flash drive into an available USB port on your computer.
Update or Create an Easy Setup Key
Easy Setup Key Has Been Updated
Connect Manually
1. Enter the Network name (SSID), Security Key, and Security  Type settings on your wireless device (SSID stands for Service Set Identifier). To print this information, click Print these settings.
Advanced Wireless-N Router
Connecting a Device
2. After your device connects, click Next.
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Linksys E2100L Chapter 2: Cisco Connect
3. Enter a name that will be used to identify this device. Then click Finish.
Name Your Device
Wireless Printer
1. Refer to your printer’s documentation to learn how to connect it to a wireless printer.
2. Enter the  Network  name  (SSID), Security  Key, and Security Type settings on your wireless printer. To print this information, click Print these settings.

Guest Access

The Guest access settings screen appears.
Guest Access Settings
Allow guest access By default, guest access is enabled.
To disable guest access, select no.
Guest network name By default, the setup software sets
up the name of the guest network.
Password By default, the setup software sets up the
password for the guest network. To change the password, click Change.
Connecting a Wireless Printer
3. Wait until your printer connects. On the Connecting a  wireless printer screen, click Next.
4. Enter a name that will be used to identify this printer. Then click Finish.
If you clicked Change, the Change guest password screen appears.
Change Guest Password
• Enter a new guest password Enter a password of
4-32 characters.
• Click Change to save your setting.
Total guests allowed By default, 5 guests are allowed
Internet access through the guest network. Select the appropriate number of guests allowed on your guest network; you can select up to 10 guests.
Click Finish to save your settings.
Advanced Wireless-N Router
Name Your Printer
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Linksys E2100L Chapter 2: Cisco Connect

Router Settings

The Router settings screen appears.
Router Settings
Personalize
Router name The name of the Router is displayed
(this is also the name of your wireless network). To change the name, click Change and go to
Change Router Name or Password, page 9.
Password The password that protects access to the
Router’s settings is displayed (this also protects wireless access to your local network). To change the password, click
Change and go to Change Router Name or Password, page 9.
Easy Setup Key
Update or create key The Easy Setup Key is a USB flash
drive that holds the wireless settings for the Router. If you want to create or update an Easy Setup Key, click this option and go to Create or Update the Easy Setup Key, page 7.
Change Router Name or Password
NOTE: If you change the Router name or
password, you also change the name or password of your wireless network. The wireless computers or other devices connected to the Router will need to be reconnected using the new name or password (for more information, refer to Computers and Other Devices, page 6).
If you clicked Change, the Changing  router  name  or  password screen appears.
1. To change the Router name or password, click Yes. Otherwise, click No.
Changing Router Name or Password
2. Complete the following:
• Router name Enter a name of 1-32 characters.
• Password Enter a password of 8-63 characters.
• Click Change to save your settings.
Other Options
Register now to receive special offers and updates To
sign up to receive special offers and updates, click this option.
Router details To view more information about the
Router, click this option and go to Router Details, page 10.
Advanced settings To access settings for advanced
users, click this option and go to Advanced Settings, page 10.
Click Finish to save your settings.
Advanced Wireless-N Router
Change Router Name and Password
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Linksys E2100L Chapter 2: Cisco Connect
Router Details
The Router  details screen appears, displaying the Model name, Model number, Serial number, Firmware version, Operating system, Software version, Connection type (WAN), IP address (LAN), IP address (WAN), and Computer IP address. (WAN stands for Wide Area Network, such as the Internet. IP stands for Internet Protocol. LAN stands for Local Area Network.)
Copy To copy the details to a text file, click Copy and
follow these instructions:
1. Open a text editor, such as Microsoft Word or Notepad.
2. Go to Edit > Paste.
3. Go to File > Save.
Click OK to open the web browser and access the browser-based utility. For more information, refer to How to Access the Browser-Based Utility, page 11.

How to Exit Cisco Connect

To exit Cisco Connect, click Close on the main menu.
Main Menu

How to Access Cisco Connect

Windows
Router Details
Click Close to return to the Router settings screen.
Advanced Settings
If you are an advanced user familiar with router administration, you can access the browser-based utility to use the advanced configuration settings of the Router.
Username Enter this username to access the
browser-based utility.
Password Enter this password to access the
browser-based utility.
Copy password To copy the password to the Clipboard,
click this option.
To access Cisco Connect, go to Start > All Programs > Cisco Connect.
Mac
To access Cisco Connect, go to Go > Applications > Cisco Connect.
Advanced Wireless-N Router
Advanced Settings
10
Linksys E2100L Chapter 3: Advanced Configuration

Chapter 3: Advanced Configuration

After setting up the Router with the setup software (located on the CD-ROM), the Router will be ready for use. If you would like 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, Storage, Access Restrictions, Applications  & Gaming, Administration, and Status. Additional tabs will
be available after you click one of the main tabs.

How to Access the Browser-Based Utility

To access the browser-based utility, launch the web browser on your computer, and enter the Router’s default Internet Protocol (IP) address, 192.168.1.1, in the Address field. Then press Enter.
A login screen will appear. (Non-Windows 7 users will see a similar screen.) In the User name field, enter admin. Then enter the password created during the setup software. (If you did not run the setup software, then use the default password, admin. You can set a new password on the  Administration  >  Management screen. Refer to Administration > Management, page 36.) Click OK to continue.

Setup > Basic Setup

The first screen that appears is the Basic Setup screen. This allows you to change the Router’s general settings.
Setup > Basic Setup
Language
Login Screen
NOTE: You can also access the browser-based
utility through Cisco Connect. For more information, refer to Router Settings, page 9.
Language
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 one from
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. The available types are:
• Automatic Configuration - DHCP
• Static IP
• PPPoE
• PPTP
• L2TP
• Telstra Cable
Advanced Wireless-N Router
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Linksys E2100L Chapter 3: Advanced Configuration
Automatic Configuration - DHCP
The default Internet Connection Type is set to Automatic Configuration - DHCP (Dynamic Host Configuration Protocol). Keep the default only if your ISP supports DHCP or if you connect using 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
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 elapse before your Internet connection terminates. The default 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, specify how often the Router should check the Internet connection. The default is 30 seconds.
PPTP
Point-to-Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe only.
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 enter 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 Point-to-Point Protocol over Ethernet (PPPoE) 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 > 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.
Internet Connection Type > PPPoE
Username and Password Enter the Username and
Password provided by your ISP.
Service Name (optional) If provided by your ISP, enter
the Service Name.
Advanced Wireless-N Router
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.
PPTP Server IP Address Your ISP will provide you with
the IP address of the PPTP server.
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Linksys E2100L Chapter 3: Advanced Configuration
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 elapse before your Internet connection terminates. The default 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, specify how often the Router should check the Internet connection. The default is 30 seconds.
L2TP
Layer 2 Tunneling Protocol (L2TP) is a service that applies to connections in Israel only.
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 Telstra
Cable. 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 elapse before your Internet connection terminates. The default is 5 minutes.
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 elapse before your Internet connection terminates. The default 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, specify how often the Router should check the Internet connection. The default is 30 seconds.
Advanced Wireless-N Router
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, specify how often the Router should check the Internet connection. The default is 30 seconds.
Optional Settings
Some of these settings may be required by your ISP. Verify with your ISP before making any changes.
Optional Settings
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.
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Linksys E2100L Chapter 3: Advanced Configuration
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 setting, 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 configures the IP settings for your local network.
Router IP
IP Address The Router’s IP address, as seen by your
network, is displayed. The default Router IP address is
192.168.1.1.
Subnet Mask The Router’s Subnet Mask, as seen by your
network, is displayed.
DHCP Reservation
You will see a list of DHCP clients with the following information: Client Name, Interface, IP Address, and MAC Address.
DHCP Reservation
• Select Clients from DHCP Table Click the Select
check box to reserve a client’s IP address. Then click Add Clients.
Router IP
DHCP Server Settings
The settings allow you to configure the Router’s 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 or device 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 Server Setting
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 DHCP Reservation if you want
to assign a fixed local IP address to a MAC address.
• 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, click Close.
Start IP Address The Start IP Address specifies the
starting IP address for the range of addresses assigned by your Router when it functions as a DHCP server. (The first IP address assigned by the Router will be randomly selected within the range you specify.)
Because the Router’s default IP address is 192.168.1.1, the Start IP Address must be 192.168.1.2 or greater, but smaller than 192.168.1.254. The default Start IP Address is
192.168.1.100.
Maximum Number of Users Enter the maximum
number of computers 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 available IP addresses is
displayed.
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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, 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 Uniform Resource Locators (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
.
Time Settings
DynDNS.org
Setup > DDNS > DynDNS
Username Enter the Username for your DDNS account.
Password Enter the Password for your DDNS account.
Host Name The DDNS URL assigned by the DDNS service
is displayed.
Time Setting
Time Zone Select the time zone in which your network
functions from this drop-down menu.
Automatically adjust clock for daylight saving changes Select this option to have the Router
automatically adjust for daylight saving time.
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, File Transfer Protocol (FTP) server, or other server behind the Router.
Before you can use this option, 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 option, keep the default, Disabled.
DDNS
DDNS Service
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 emails to your DynDNS address go to your mail server.
Backup MX This option allows the Mail eXchange (MX)
server to be a backup. To disable this option, keep the default, Disabled. To enable the option, 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.
Update To manually trigger an update, click Update.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
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.
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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.
Update To manually trigger an update, click Update.
Clone My PC’s MAC Click this option to clone the MAC
address of the computer you are using.
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.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Setup > MAC Address Clone

A Media Access Control (MAC) address is a 12-digit code assigned to a unique piece of hardware for identification. Some ISPs require you to register a MAC address in order to access the Internet. If you have your computer’s MAC address registered with your ISP and you do not wish to re-register the MAC address, then you may assign the registered MAC address 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.
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)
Dynamic routing uses the Routing Information Protocol (RIP). This option 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.
Enabled/Disabled When the NAT setting is enabled, the
Dynamic Routing option is automatically disabled. When the NAT setting is disabled, this option is available. Select Enabled to use the Dynamic Routing option.
Static Routing
A static route is a pre-determined pathway that network information must travel to reach a specific host or
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Linksys E2100L Chapter 3: Advanced Configuration
network. Enter the information described below to set up a new static route.
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 (Local Area
Network) 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.
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 Internet (WAN). (WAN stands for Wide Area Network.)
Click Show Routing Table to view the static routes you have already set up.
Setup section. To use Wi-Fi Protected Setup, select Wi-Fi Protected Setup. Proceed to Wi-Fi Protected Setup, page 18.

Manual Setup

If you set the Wireless Configuration to Manual, the Basic  Wireless Settings screen displays the following fields.
Wireless > Basic Wireless Settings (Manual Setup)
Network Mode From this drop-down menu, you can
select the wireless standards running on your network.
• Mixed If you have Wireless-N, Wireless-G, and
Wireless-B devices in your network, keep the default, Mixed.
Advanced Routing > Routing Table
Routing Table
For each route, the Destination LAN IP address, Subnet Mask, Gateway, Hop Count, and Interface are displayed. Click Refresh to update the information. Click Close to exit this screen.
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 as wireless adapters, that support Wi-Fi Protected Setup, then you can use Wi-Fi Protected Setup.
• BG-Mixed If you have only Wireless-G and Wireless-B
devices in your network, select BG-Mixed.
• Wireless-N Only If you have only Wireless-N devices,
select Wireless-N Only.
• Wireless-G Only If you have only Wireless-G devices,
select Wireless-G Only.
• Wireless-B Only If you have only Wireless-B devices,
select Wireless-B Only.
• Disabled If you do not have any wireless devices in
your network, select Disabled.
NOTE: If you are not sure which mode to use,
keep the default, Mixed.
Network Name (SSID) The SSID (Service Set Identifier)
is the network name shared by all devices in a wireless network. It is case-sensitive and must not exceed 32 keyboard characters. The default is Ciscoxxxxx (xxxxx are the last five digits of the Router’s serial number). The serial number is located on the left side of the product label, which is on the bottom panel.
Channel Width The default is Standard - 20 MHz
Channel. For best performance, select Auto to have the
Router automatically select the Channel Width (20 MHz or 40 MHz).
Wireless Configuration To manually configure your
wireless networks, select Manual. Proceed to the Manual 
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Channel Select the appropriate channel for your wireless
network. If you are not sure which channel to select, then keep the default, Auto.
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.
at a time. Wait until the LED is continuously lit, or off before starting the next Wi-Fi Protected Setup session.
c. After the client device has been configured,
click OK on the Router’s Wi-Fi  Protected  Setup screen. Then refer back to your client device or its documentation for further instructions.
• Enter Client Device PIN on Router Use this method
if your client device has a Wi-Fi Protected Setup PIN (Personal Identification Number).
a. Enter the PIN from the client device in the field on
the Router’s Wi-Fi Protected Setup screen.
b. Click the Register button on the Router’s Wi-Fi 
Protected Setup screen.
c. After the client device has been configured,
click OK on the Router’s Wi-Fi  Protected  Setup screen. Then refer back to your client device or its documentation for further instructions.
• Enter Router PIN on Client Device Use this method
if your client device asks for the Router’s PIN.
a. On the client device, enter the PIN listed on the
Router’s Wi-Fi  Protected  Setup screen. (It is also listed on the label on the bottom of the Router.)
Wireless > Basic Wireless Settings (Wi-Fi Protected Setup)
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.
• Wi-Fi Protected Setup Button Use this method if
your client device has a Wi-Fi Protected Setup button.
a. Click or press the Wi-Fi Protected Setup button on
the client device.
b. Click the Wi-Fi Protected Setup button on the
Router’s Wi-Fi Protected Setup screen.
The Wi-Fi Protected Setup LED flashes blue for two minutes during the Wi-Fi Protected Setup process and lights up blue when the Wi-Fi Protected Setup process is successful.
b. After the client device has been configured,
click OK on the Router’s Wi-Fi  Protected  Setup screen. Then refer back to your client device or its documentation for further instructions.
The Network Name (SSID), Security, 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.
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
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Linksys E2100L Chapter 3: Advanced Configuration

Wireless > Wireless Security

The wireless security settings configure the security of your wireless network(s). The Router supports the following wireless security options: WPA/WPA2 Mixed Mode (default), WPA2 Personal, WPA Personal, WEP, and RADIUS. (WPA stands for Wi-Fi Protected Access. WEP stands for Wireless Equivalent Privacy. RADIUS stands for Remote Authentication Dial-In User Service.)
The default option is WPA/WPA2 Mixed Mode, which allows your devices to connect using the strongest security option they support, WPA2 or WPA.
Personal Options
Security Option Strength
WPA2 Personal Strongest
WPA/WPA2 Mixed Mode (default)
WPA Personal Strong
WEP Basic
Office Option
WPA2: Strongest WPA: Strong
WPA2 Personal
NOTE: If you are using WPA2 or WPA, each
device in your wireless network MUST use the same WPA method and shared key, or else the network will not function properly.
Wireless Security > WPA2 Personal
Passphrase Enter a passphrase of 8-63 characters. The
default is password.
WPA Personal
RADIUS is the security option offered for networks that use a RADIUS server for authentication.
Security Mode
Select the security method for your wireless network. If you do not want to use wireless security, keep the default, Disabled.
WPA/WPA2 Mixed Mode
NOTE: If you are using WPA/WPA2 Mixed Mode,
each device in your wireless network MUST use the same WPA shared key, or else the network will not function properly.
NOTE: If you are using WPA2 or WPA, each
device in your wireless network MUST use the same WPA method and shared key, or else the network will not function properly.
Wireless Security > WPA Personal
Passphrase Enter a passphrase of 8-63 characters. The
default is password.
Wireless Security > WPA/WPA2 Mixed Mode
Passphrase Enter a passphrase of 8-63 characters. The
default is password.
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WEP
WEP is a basic encryption method, which is not as secure as WPA.
NOTE: I
device in your wireless network MUST use the same WEP encryption method and encryption key, or else your wireless network will not function properly.
f you are using WEP encryption, each
RADIUS
This option features WEP used in coordination with a RADIUS server. (This should only be used when a RADIUS server is connected to the Router.)
NOTE: I
device in your wireless network MUST use the same WEP encryption method and encryption key, or else your wireless network will not function properly.
f you are using WEP encryption, each
Wireless Security > WEP
Encryption Select a level of WEP encryption, 40/64 bits
(10 hex digits) or 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 1-4 If you did not enter a Passphrase, enter the WEP
key(s) manually.
TX Key Select a default TX (Transmit) Key (choose which
Key to use). The default is 1.
RADIUS
RADIUS Server Enter the IP address of the RADIUS server.
RADIUS Port Enter the port number of the RADIUS
server. The default is 1812.
Shared Secret Enter the key shared between the Router
and the server.
Encryption Select a level of WEP encryption, 64 bits
10 hex digits or 128 bits 26 hex digits. The default is 64 bits 10 hex digits.
Passphrase Enter a Passphrase to automatically generate
WEP keys. Then click Generate.
Key 1-4 If you did not enter a Passphrase, enter the WEP
key(s) manually.
TX Key Select a default TX (Transmit) Key (choose which
Key to use). The default is 1.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.
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Linksys E2100L Chapter 3: Advanced Configuration

Wireless > Wireless MAC Filter

Wireless access can be filtered (restricted) by specifying the MAC addresses of the devices in your wireless network.
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, Interface, 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.
Wireless > Wireless MAC Filter
Wireless MAC Filter
Enabled/Disabled
addresses of their computers or devices, select Enabled. Otherwise, keep the default, Disabled
Access Restriction
Prevent PCs listed below from accessing the wireless network Select this option to block wireless access by
MAC address. This option is enabled by default.
Permit PCs listed below access to the wireless network Select this option to allow wireless access by
MAC address. This option is disabled by default.
MAC Address Filter List
To filter wireless users by the MAC
.
To update the on-screen information, click Refresh. To exit this screen and return to the Wireless MAC Filter screen, click Close.
MAC 01-50 Enter the MAC addresses of the devices
whose wireless access you want to control.
Click Save Settings to apply your changes, or click Cancel Changes to clear your changes.

Wireless > Advanced Wireless Settings

The Advanced  Wireless  Settings screen is used to set up the Router’s advanced wireless functions. These settings should only be adjusted by an advanced user because incorrect settings can reduce wireless performance. In most cases, keep the default settings.
Wireless Client List Click this option to open the Wireless 
Client List screen.
Advanced Wireless-N Router
Wireless > Advanced Wireless Settings
Advanced Wireless
AP Isolation The AP (Access Point) Isolation feature
isolates all wireless clients and wireless devices on your network from each other. Wireless devices will be able to
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