Linksys BEFSR41 Owner's Manual
USER GUIDE
EtherFast
®
Cable/DSL Router
with 4-Port Switch
Model No: BEFSR41
Table of Contents
About This Guide 1
Icon Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Online Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Copyright and Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Chapter 1: Product Overview 2
Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chapter 2: Advanced Conguration 3
Setup > Basic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Setup > DDNS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setup > MAC Address Clone. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Setup > Advanced Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Security > Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Security > VPN Passthrough. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Applications and Gaming > Port Range Forwarding . . . . . . . . . . . . . . . . . . . . . . .10
Applications & Gaming > Port Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Applications and Gaming > UPnP Forwarding . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Applications and Gaming > DMZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Applications and Gaming > QoS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Administration > Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Administration > Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Administration > Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Administration > Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Status > Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Status > Local Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Appendix A: Troubleshooting 17
Appendix B: Specications 1
Appendix C: Warranty and Regulatory Information 1
Limited Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
FCC Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Safety Notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Industry Canada Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Règlement d’Industry Canada . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
EC Declaration of Conformity (Europe) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
User Information for Consumer Products Covered by EU Directive 2002/96/EC on Waste
Electric and Electronic Equipment (WEEE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
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About This Guide
Icon Descriptions
While reading through the User Guide you may encounter
various icons designed to call attention to a specific item.
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
Most web browsers allow you to enter the web address
without adding the http:// in front of the address. This
User Guide will refer to websites without including http://
in front of the address. Some older web browsers may
require you to add it.
Resource Website
Linksys www.linksys.com
Linksys International www.linksys.com/international
Glossary www.linksys.com/glossary
Network Security www.linksys.com/security
Copyright and Trademarks
Specifications are subject to change without notice.
Linksys and EtherFast are registered trademarks or
trademarks of Cisco Systems, Inc. and/or its affiliates in
the U.S. and certain other countries. Copyright © 2007
Cisco Systems, Inc. All rights reserved. Other brands and
product names are trademarks or registered trademarks
of their respective holders.
EtherFast Cable/DSL Router with 4-Port Switch
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Chapter 1
Product Overview
Chapter 1: Product Overview
Thank you for choosing the Linksys EtherFast Cable/DSL
Router with 4-Port Switch. The Router lets you access the
Internet through 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 online. Security features
include a Stateful Packet Inspection (SPI) firewall and
NAT technology. Configuring the Router is easy using the
provided browser-based utility.
Front Panel
Power (Green) The Power LED lights up and
will stay on while the Router is powered on.
It flashes when the Router goes through its
self-diagnostic mode during every boot-up or
upgrades its firmware.
Back Panel
Reset There are two ways to reset the Router to
its factory default settings. Use a straightened
paper clip or similar object to press and hold the
Reset button for approximately five seconds.
You can also restore the defaults from the
Administration > Factory Defaults screen of the
Router’s web-based utility.
Internet The Internet port is where you will
connect your cable or DSL Internet connection.
1, 2, 3, 4 These Ethernet ports (1, 2, 3, 4)
connect the Router to computers on your wired
network and other Ethernet network devices.
Power The Power port is where you will
connect the power adapter.
1, 2, 3, 4 (Green) These numbered LEDs,
corresponding with the numbered ports on the
Router’s back panel, serve two purposes. If the
LED is continuously lit, the Router is successfully
connected to a device through that port. A
flashing LED indicates network activity over
that port.
Internet (Green) The Internet LED lights up
when there is a connection made through the
Internet port. A flashing LED indicates network
activity over the Internet port.
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Chapter 2
Chapter 2: 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’d like to change its advanced settings, use the
Router’s web-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 web-based utility has these main tabs: Setup, Security,
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
web-based utility.
How to Access the Web-Based Utility
Advanced Configuration
Setup > Basic Setup
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).
To access the web-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. Leave the User Name field
blank. The first time you open the web-based utility, use
the default password admin. (You can set a new password
from the Administration > Management screen.) Click OK
to continue.
Login Screen
Setup > Basic Setup
The first screen that appears is the Basic Setup screen. This
allows you to change the Router’s general settings.
Internet Connection Type
Select the type of Internet connection your ISP provides
from the drop-down menu. These are the available types:
Obtain an IP Automatically
•
Static IP
•
PPPoE
•
RAS
•
PPTP
•
Heart Beat Signal
•
L2TP
•
Obtain an IP Automatically
By default, the Router’s Internet Connection Type is set to
Obtain an IP automatically, 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 > Obtain an IP Automatically
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Chapter 2
Advanced Configuration
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
IP Address Enter the Router’s IP address, as seen from the
Internet. This is provided by your ISP.
Subnet Mask Enter the Router’s subnet mask, as seen by
users on the Internet (including your ISP). This is provided
by your ISP.
Default Gateway Your ISP will provide you with the IP
address of the ISP server.
Static 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.
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.
RAS
Remote Access Service (RAS) is a service that applies to
connections in Singapore only. For users in Singapore,
check with Singtel for information on RAS.
Internet Connection Type > RAS
User Name and Password Enter the User Name and
Password provided by Singtel.
RAS Plan Select the type of plan you have.
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.
Internet Connection Type > PPPoE
User Name and Password Enter the User Name and
Password provided by your ISP.
Service Name 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.
EtherFast Cable/DSL Router with 4-Port Switch
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
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Chapter 2
PPTP
Point-to-Point Tunneling Protocol (PPTP) is a service that
applies to connections in Europe only.
Internet Connection Type > PPTP
IP Address Enter the Router’s IP address, as seen from the
Internet. This is provided by your ISP.
Subnet Mask Enter the Router’s subnet mask, as seen by
users on the Internet (including your ISP). This is provided
by your ISP.
Default Gateway Your ISP will provide you with the IP
address of the ISP server.
User Name and Password Enter the User Name and
Password provided by your ISP.
Connect on Demand: Max Idle Time You can configure
the Router to cut the Internet connection after it has been
inactive for a specified period of time (Max Idle Time). If
your Internet connection has been terminated due to
inactivity, Connect on Demand enables the Router to
automatically re-establish your connection as soon as you
attempt to access the Internet again. 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.
Advanced Configuration
Internet Connection Type > Heart Beat Signal
User Name and Password Enter the User Name and
Password provided by your ISP.
Heart Beat Server Enter the IP address of your ISP’s Heart
Beat server. This is 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.
L2TP
L2TP is a service that applies to connections in Israel only.
If you select this option, the
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
Heart Beat Signal
Heart Beat Signal is a service used in Australia only. If you
are using a Heart Beat Signal connection, check with your
ISP for the necessary setup information.
EtherFast Cable/DSL Router with 4-Port Switch
Internet Connection Type > L2TP
Server IP Address Enter the IP address of the L2TP server.
This is provided by your ISP.
User Name and Password Enter the User Name and
Password provided by your ISP.
Connect on Demand: Max Idle Time You can configure
the Router to cut the Internet connection after it has been
inactive for a specified period of time (Max Idle Time). If
your Internet connection has been terminated due to
inactivity, Connect on Demand enables the Router to
automatically re-establish your connection as soon as you
attempt to access the Internet again. To use this option,
select Connect on Demand. In the Max Idle Time field,
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Chapter 2
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.
Advanced Configuration
Router IP
Network Address Server Settings (DHCP)
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.
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.
Select Enable 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, Disable.
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 on the
network connected to the Router’s Ethernet ports. Wireless
setup is performed through the Wireless tab.
Router IP
This presents both the Router’s IP Address and Subnet
Mask as seen by your network.
Network Address Server Settings (DHCP)
Local DHCP Server DHCP is enabled by factory default.
If you already have a DHCP server on your network, or you
don’t want a DHCP server, then select Disable (no other
DHCP features will be available).
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
Number of Address 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.
DHCP 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 is up, the user will
be automatically assigned a new dynamic IP address. 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
suing IP addresses. Because the Router’s
.
The Domain Name System (DNS) is how
.
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