Wireless 11n Cable/DSL Firewall Router
User Guide
WL-602
3CRWER300-73
http://www.3Com.com/
Part No. 10015880 Rev. AA
Published May 2008
3Com Corporation
350 Campus Drive,
Marlborough, MA
USA 01752-3064
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CONTENTS
ABOUT THIS GUIDE
Naming Convention 7
Conventions 8
Feedback About This User Guide 9
Related Documentation 9
INTRODUCING THE ROUTER
Wireless 11n Cable/DSL Firewall Router 11
Router Advantages 13
Package Contents 13
Minimum System and Component Requirements 14
Physical Features 14
INSTALLING THE ROUTER
Introduction 19
Safety Information 19
Positioning the Router 19
Using the Rubber Feet 20
Wall Mounting 20
Powering Up the Router 21
Connecting the Router 21
SETTING UP YOUR COMPUTERS
Obtaining an IP Address Automatically 23
Windows 2000 23
Windows Vista 25
Windows XP 26
Macintosh 26
Disabling PPPoE and PPTP Client Software 27
Disabling Web Proxy 27
RUNNING THE SETUP WIZARD
Accessing the Setup Wizard 29
Wizard Change Password 32
Wizard Time and Time Zone 32
Wizard Connection Type 33
Setup Wizard - LAN Settings 40
Wizard - Wireless Setting 41
Wizard - Configuration Summary 42
CONFIGURING THE ROUTER
Navigating Through the Router Configuration screens 43
Main Menu 43
Welcome Screen 43
Status 43
LAN Settings 44
LAN Settings 44
DHCP Clients List 45
Wireless Settings 47
Configuration 48
Encryption 49
WPS 54
Connection Control 55
Client List 56
WMM 57
WDS 58
Advanced 59
Internet Settings 60
WAN 60
DNS 67
Clone MAC address 68
Firewall 69
SPI 69
Special Applications 73
Virtual Servers 74
DMZ 75
PC Privileges 76
Schedule Rule 78
URL Filter 79
Advanced 80
Security 80
VLAN 83
Static Routes 84
RIP 85
DDNS 87
SNMP 88
Syslog 89
Proxy ARP 90
QoS Settings 91
VPN 92
System Tools 96
Restart Router 96
Configuration 96
Upgrade 97
Time Zone 98
Ping 99
Traceroute 100
DNS Lookup 101
Status and Logs 102
Status 102
Routing Table 102
Logs 103
Traffic Statistics 103
Support/Feedback 104
Support 104
Feedback 104
TROUBLESHOOTING
Basic Connection Checks 105
Browsing to the Router Configuration Screens 105
Connecting to the Internet 106
Forgotten Password and Reset to Factory Defaults 106
Wireless Networking 107
Recovering from Corrupted Software 109
Frequently Asked Questions 110
IP ADDRESSING
The Internet Protocol Suite 111
Managing the Router over the Network 111
IP Addresses and Subnet Masks 111
How does a Device Obtain an IP Address and Subnet Mask? 113
DHCP Addressing 113
Static Addressing 113
Auto-IP Addressing 113
TECHNICAL SPECIFICATIONS
3Com Wireless 11n Cable/DSL Firewall Router 115
Standards 116
SAFETY INFORMATION
END USER SOFTWARE LICENSE AGREEMENT
OBTAINING SUPPORT FOR YOUR PRODUCT
GLOSSARY
REGULATORY NOTICES
INDEX
ABOUT THIS GUIDE
This guide describes how to install and configure the 3Com Wireless 11n
Cable/DSL Firewall Router (3CRWER300-73).
This guide is intended for use by those responsible for installing and
setting up network equipment; consequently, it assumes a basic working
knowledge of LANs (Local Area Networks) and Internet Routers.
If a release note is shipped with the 3Com Wireless 11n Cable/DSL
Firewall Router and contains information that differs from the
information in this guide, follow the information in the release note.
Most user guides and release notes are available in Adobe Acrobat
Reader Portable Document Format (PDF) on the 3Com World Wide Web
site:
http://www.3Com.com
Naming Convention Throughout this guide, the 3Com Wireless 11n Cable/DSL Firewall Router
is referred to as the “Router”.
Category 3 and Category 5 Twisted Pair Cables are referred to as Twisted
Pair Cables throughout this guide.
8 ABOUT THIS GUIDE
Conventions Ta bl e 1 and Tab l e 2 list conventions that are used throughout this guide.
Tab le 1 Notice Icons
Icon Notice Type Description
Information note Information that describes important features or
instructions.
Caution Information that alerts you to potential loss of data or
potential damage to an application, system, or device.
Warning Information that alerts you to potential personal
injury.
Tab le 2 Text Conventions
Convention Description
The words “enter”
and “type”
When you see the word “enter” in this guide, you must type
something, and then press Return or Enter. Do not press
Return or Enter when an instruction simply says “type.”
Keyboard key names If you must press two or more keys simultaneously, the key
names are linked with a plus sign (+). Example:
Press Ctrl+Alt+Del
Words in italics Italics are used to:
■ Emphasize a point.
■ Denote a new term at the place where it is defined in the
text.
■ Identify menu names, menu commands, and software
button names. Examples:
From the Help menu, select Contents.
Click OK.
Feedback About This User Guide 9
Feedback About
This User Guide
Related
Documentation
Your suggestions are very important to us. They will help make our
documentation more useful to you. Please e-mail comments about this
document to 3Com at:
pddtechpubs_comments@3com.com
Please include the following information when commenting:
■ Document title
■ Document part number (on the title page)
■ Page number (if appropriate)
Example:
■ 3Com Wireless 11n Cable/DSL Firewall Router User Guide
■ Part Number 10015880 Rev. AA
■ Page 24
Do not use this e-mail address for technical support questions. For
information about contacting Technical Support, please refer to
Appendix C
.
In addition to this guide, each Router document set includes one
Installation Guide. This guide contains the instructions you need to install
and configure your Router.
10 ABOUT THIS GUIDE
1
INTRODUCING THE ROUTER
Welcome to the world of networking with 3Com®. In the modern
business environment, communication and sharing information is crucial.
Computer networks have proved to be one of the fastest modes of
communication but, until recently, only large businesses could afford the
networking advantage.
Wireless 11n
Cable/DSL Firewall
Router
The 3Com Wireless 11n Cable/DSL Firewall Router is designed to provide
a cost-effective means of sharing a single broadband Internet connection
amongst several wired and wireless computers. The Router also provides
protection in the form of an electronic “firewall” preventing anyone
outside of your network from seeing your files or damaging your
computers. The Router can also prevent your users from accessing Web
sites which you find unsuitable.
Figure 1 shows an example network without a Router. In this network,
only one computer is connected to the Internet. This computer must
always be powered on for the other computers on the network to access
the Internet.
12 CHAPTER 1: INTRODUCING THE ROUTER
Figure 1 Example Network Without a Router
When you use the Router in your network (Figure 2), it becomes your
connection to the Internet. Connections can be made directly to the
Router, or to an OfficeConnect Switch or Hub, expanding the number of
computers you can have in your network.
Figure 2 Example Network Using a Firewall Router
Router Advantages The advantages of the Router include:
■ Shared Internet connection for both wired and wireless computers
■ High speed 802.11n wireless networking
■ No need for a dedicated, “always on” computer serving as your
Internet connection
■ Cross-platform operation for compatibility with Windows, Unix and
Macintosh computers
■ Easy-to-use, Web-based setup and configuration
■ Provides centralization of all network address settings (DHCP)
■ Acts as a Virtual server to enable remote access to Web, FTP, and other
services on your network
■ Security — Firewall protection against Internet hacker attacks and
encryption to protect wireless network traffic
Package Contents The Router kit includes the following items:
Router Advantages 13
■ One 3Com Wireless 11n Cable/DSL Firewall Router
■ One power adapter for use with the Router
■ Four rubber feet
■ One Ethernet cable
■ One CD-ROM containing this User guide
■ Installation guide
■ Support and Safety sheet
■ Warranty sheet
■ Product range sheet
If any of these items are missing or damaged, please contact your retailer.
14 CHAPTER 1: INTRODUCING THE ROUTER
Minimum System
and Component
Requirements
Your Router requires that the computer(s) and components in your
network be configured with at least the following:
■ A computer with an operating system that supports TCP/IP
networking protocols (for example Windows 2000/XP,/Vista, Unix,
Mac OS 8.5 or higher).
■ An Ethernet 10 Mbps or 10/100 Mbps NIC for each computer to be
connected to the four-port switch on your Router.
■ An 802.11b or 802.11g or 802.11n wireless NIC.
■ An active ADSL or Cable subscription and connection.
■ A Web browser that supports JavaScript, such as Netscape 4.7 or
higher, Internet Explorer 6.0 or higher, or Mozilla 1.2.1 or higher.
Physical Features The front panel of the Router contains a series of indicator lights (LEDs)
that help describe the state of various networking and connection
operations.
Figure 3 Router - Front Panel
Physical Features 15
1 Alert LED
Amber
Fast flash during self test. If self test fails the LED will remain on.
Fast flash during software upgrade.
Fast flash for software reset to the factory defaults.
Fast flash for hardware reset to the factory defaults.
The LED is on for 2 seconds when the firewall detects a hacker attack.
2Cable/DSL
Blue
LED on indicates the physical connection is on.
Fast flash means WAN port traffic activity.
3 Wireless LAN (WLAN) Status LED
Blue
If the LED is on it indicates that wireless networking is enabled. If the LED
is flashing, the link is OK and data is being transmitted or received. If the
LED is off, the Wireless LAN has been disabled in the Router, or there is a
problem. Refer to Chapter 6 Troubleshooting
.
4 LAN Status LEDs (4 indicators)
Blue
If the LED is on, the link between the port and the next piece of network
equipment is OK. If the LED is flashing, the link is OK and data is being
transmitted or received. If the LED is off, nothing is connected, or the
connected device is switched off, or there is a problem with the
connection (refer to Chapter 6 Troubleshooting
). The port will
automatically adjust to the correct speed and duplex.
5 WPS LED
LED on indicates the WPS function is active.
16 CHAPTER 1: INTRODUCING THE ROUTER
The rear panel (Figure 4) of the Router contains one WPS button, four
LAN ports, one WAN port, one WiFi LED, a reset button, and a power
adapter socket.
Figure 4 Router - Rear Panel
1 Wireless Antennae
The antennaes should be placed in a ‘V’ position when initially installed.
CAUTION: Do not force the antennae beyond their mechanical stops.
Rotating the antennae further may cause damage.
2 WPS button
Press this button when making WPS setup.
3 Ethernet Ports (4 ports)
Using suitable RJ-45 cables, you can connect your Router to a computer,
or to any other piece of equipment that has an Ethernet connection (for
example, a hub or a switch). These ports have an automatic MDI/MDIX
feature, which means either straight-through or a crossover cable can be
used.
4WAN Port
RJ-45 port used to connect the Router with Cable/DSL modem.
5 WiFi On/Off button
Use this button to turn on/turn off the wireless function.
Physical Features 17
6 Reset Button
If you want to reset your Router to factory default settings, or cannot
access the web management interface (for example, due to a lost
password), then you may use this button. Refer to Forgotten Password
and Reset to Factory Defaults on page 106 for further details.
7 Power Adapter Socket
Only use the power adapter that is supplied with this Router. Do not use
any other adapter.
18 CHAPTER 1: INTRODUCING THE ROUTER
INSTALLING THE ROUTER
2
Introduction This chapter will guide you through a basic installation of the Router,
including:
■ Connecting the Router to the Internet.
■ Connecting the Router to your network.
■ Setting up your computers for networking with the Router.
Safety Information Please note the following:
Positioning the
Router
WARNING: Please read the Safety Information
before you start.
VORSICHT: Bitte lesen Sie den Abschnitt Wichtige Sicherheitshinweise
sorgfältig durch, bevor Sie das Gerät einschalten.
AVERTISSEMENT: Veuillez lire attentivement la section Consignes
importantes de sécurité avant de mettre en route.
You should place the Router in a location that:
■ is conveniently located for connection to the telephone socket.
■ is centrally located to the wireless computers that will connect to the
Router. A suitable location might be on top of a high shelf or similar
furniture to optimize wireless connections to computers in both
horizontal and vertical directions, allowing wider coverage.
■ allows convenient connection to the computers that will be connected
to the four LAN ports on the rear panel, if desired.
■ allows easy viewing of the front panel LED indicator lights, and access
to the rear panel connectors, if necessary.
section in Appendix C
20 CHAPTER 2: INSTALLING THE ROUTER
When positioning your Router, ensure:
■ It is out of direct sunlight and away from sources of heat.
■ Cabling is away from power lines, fluorescent lighting fixtures, and
sources of electrical noise such as radios, transmitters and broadband
amplifiers.
■ Water or moisture cannot enter the case of the unit.
■ Air flow around the unit and through the vents in the side of the case
is not restricted. 3Com recommends you provide a minimum of
25 mm (1 in.) clearance.
Using the Rubber
Feet
Use the four self-adhesive rubber feet to prevent your Router from
moving around on your desk or when stacking with flat top units. Only
stick the feet to the marked areas at each corner of the underside of your
Router.
Wall Mounting There are two slots on the underside of the Router that can be used for
wall mounting.
When wall mounting the unit, ensure that it is within reach of the power
outlet.
There are 2 slots on the underside of the Router that can be used for wall
mounting. The distance between the 2 slots is 100 mm.
You will need 2 suitable screws, the diameter would be 5.0 to 7.0 mm, to
wall mount the Router.
When wall mounting the unit, ensure that it is within reach of the power
outlet.
To wall mount the unit:
1 Ensure that the wall you use is smooth, flat, dry and sturdy and make two
screw holes which are 100 mm apart.
2 Fix the screws into wall, leaving their heads 5 mm clear of the wall
surface.
3 Remove any connections to the unit and locate it over the screw heads.
When in line, gently push the unit on to the wall and move it downwards
to secure.
Powering Up the Router 21
When making connections, be careful not to push the unit up and off the
wall.
CAUTION: Only wall mount single units, do not wall mount stacked
units.
Powering Up the
Router
Connecting the
Router
To power up the Router:
1 Plug the power adapter into the power adapter socket located on the
back panel of the Router.
2 Plug the power adapter into a standard electrical wall socket.
The first step for installing your Router is to physically connect it to the
DSL/Cable modem, and then connect the Router to a computer in order
to be able to access the Internet. See Figure 5:
Figure 5 Connecting the Router
22 CHAPTER 2: INSTALLING THE ROUTER
1 Using RJ-45 cable to connect the WAN port of the Router with the
DSL/Cable modem.
2 Using RJ-45 cable to connect one PC with the LAN port the Router.
You have now completed the hardware installation of your Router. Next
you need to set up your computers so that they can make use of the
Router to communicate with the Internet.
3Com recommends that you perform the initial Router configuration
from a computer that is directly connected to one of the LAN ports.
If you configure the Router from a wireless computer, note that you may
lose contact with the Router if you change the wireless configuration.
To communicate wirelessly with your Router, your wireless NIC should be
set as follows:
■ Encryption — none
■ SSID — 3Com
■ Channel — 11
3
Obtaining an IP
Address
Automatically
Windows 2000 If you are using a Windows 2000-based computer, use the following
SETTING UP YOUR COMPUTERS
The Router has the ability to dynamically allocate network addresses to
the computers on your network, using DHCP. However, your computers
need to be configured correctly for this to take place. To change the
configuration of your computers to allow this, follow the instructions in
this chapter.
procedure to change your TCP/IP settings:
1 From the Windows Start Menu, select Settings > Control Panel.
2 Double click on Network and Dial-Up Connections.
3 Double click on Local Area Connection.
4 Click on Properties.
5 A screen similar to Figure 6 should be displayed. Select Internet Protocol
TCP/IP and click on Properties.
24 CHAPTER 3: SETTING UP YOUR COMPUTERS
Figure 6 Local Area Properties Screen
6 Ensure that the options Obtain an IP address automatically, and Obtain
DNS server address automatically are both selected as shown in Figure 7.
Click OK.
Figure 7 Internet Protocol (TCP/IP) Properties Screen
7 Restart your computer.
Windows Vista
Obtaining an IP Address Automatically 25
1 From the Windows Start Menu, select Settings > Network.
2 Click on Organize. Select Properties.
3 Click on Manage network > Connections.
4 Double click Local Area Connection. Select Properties and click continue.
5 A screen similar to (Figure 8) should appear. Select Internet Protocol
Version 6,Version 4 (TCP/IPv6,v4) and click on Properties.
Figure 8 Local Area Connection Properties Screen
6 Ensure that the options Obtain an IPv6,v4 address automatically, and
Obtain DNS servers address automatically are both selected as shown in
(Figure 9). Click OK.
Figure 9 Internet Protocol Version 6 (TCP/IPv6) Properties Screen
26 CHAPTER 3: SETTING UP YOUR COMPUTERS
Windows XP
1 From the Windows Start Menu, select Control Panel.
2 Click on Network and Internet Connections.
3 Click on the Network Connections icon.
4 Double click on LAN or High Speed Connection icon. A screen titled Local
Area Connection Status will appear.
5 Select Internet Protocol TCP/IP and click on Properties.
6 Ensure that the options Obtain an IP address automatically, and Obtain
DNS servers automatically are both selected. Click OK.
7 Restart your computer.
Macintosh If you are using a Macintosh computer, use the following procedure to
change your TCP/IP settings:
1 From the desktop, select Apple Menu, Control Panels, and TCP/IP.
2 In the TCP/IP control panel, set Connect Via: to Ethernet.
3 In the TCP/IP control panel, set Configure: to Using DHCP Server.
4 Close the TCP/IP dialog box, and save your changes.
5 Restart your computer.
Disabling PPPoE and PPTP Client Software 27
Disabling PPPoE
and PPTP Client
Software
If you have PPPoE client software installed on your computer, you will
need to disable it. To do this:
1 From the Windows Start Menu, select Settings > Control Panel.
2 Double click on Internet Options.
3 Select the Connections Tab. A screen similar to Figure 10 should be
displayed.
4 Select the Never dial a connection option.
Figure 10 Internet Properties Screen
Disabling Web
Proxy
You may want to remove the PPPoE client software from your computer
to free resources, as it is not required for use with the Router.
Ensure that you do not have a web proxy enabled on your computer.
Go to the Control Panel and click on Internet Options. Select the
Connections tab and click LAN Settings at the bottom. Make sure that
the Use Proxy Server option is unchecked.
28 CHAPTER 3: SETTING UP YOUR COMPUTERS
4
RUNNING THE SETUP WIZARD
Accessing the Setup
Wizard
The Router setup program is Web-based, which means that it is accessed
through your Web browser (Netscape Navigator 4.7 or higher, Internet
Explorer 6.0 or higher, or Mozilla 1.2.1 or higher).
To use the Setup Wizard:
1 Ensure that you have at least one computer connected to the Router.
Refer to Chapter 2 for details on how to do this.
2 Launch your Web browser on the computer.
3 Enter the following URL in the location or address field of your browser:
http://192.168.1.1 (Figure 11). The Login screen displays.
Figure 11 Web Browser Location Field (Factory Default)
30 CHAPTER 4: RUNNING THE SETUP WIZARD
4 To log in as an administrator, enter the password (the default password is
admin) in the System Password field and click Log in (see Figure 12).
Figure 12 Router Login Screen
5 When you have logged in,
■ if you are logging in for the first time, the Country Selection screen
will appear (see Figure 13). Please select the country form the
drop-down menu, and click Apply.
Note to US model owner: To comply with US FCC regulation, the country
selection function has been completely removed from all US models. The
above function is for non-US models only.
Figure 13 Country Selection Screen
The Wizard will then launch automatically (refer to Figure 16). You will be
guided step by step through a basic setup procedure.
■ if the Router has been configured previously, the Welcome screen will
appear (Figure 14). There are three tabs: Notice Board, Password and
Wizard.
Accessing the Setup Wizard 31
Figure 14 Welcome Screen
■ Go to the Notice Board tab to see the current software information. To
view the Web help, click the Help button.
■ Go to the Password tab to change the password (Figure 15).
■ Go to the Wizard tab to do a quick setup of the Router (Figure 16).
The password screen allows you to change the current password and set
the login time limit to the Router’s management interface.
Figure 15 Password Screen
1 To change the current password, enter the password in the Current
Password field.
2 Enter the new password in the New Password field, and enter it again in
the Confirm New Password field.
32 CHAPTER 4: RUNNING THE SETUP WIZARD
3 Enter the time period in Login Timeout to set a maximum period of time
for which the login session is maintained during inactivity (Default: 10
minutes).
Wizard -
Change Password
Wizard -
Time and Time Zone
To ensure the security of your Router, it is recommended that you choose
a new password - this should be a mix of letters and numbers, and not
easily guessed by others. To leave the current password unchanged, leave
the fields blank and click Next.
Figure 16 Change Password Screen
The Time and Time Zone screen allows you to set up the time for the
Router.
Figure 17 Time and Time Zone Screen
Accessing the Setup Wizard 33
1 Select the correct base date and time.
2 If you want to automatically synchronize the Router with a public time
server, check the Enable box in the Using Time Server (NTP) field.
3 Select the time zone in the Set Time Zone drop-down menu.
4 Enter the time in the Synchronization Interval field.
5 Select the desired servers from the Time Server drop-down menu.
6 Check the Enable box in the Daylight Savings field, if daylight savings
applies to your area.
7 Click Next.
Wizard -
Connection Type
The Connection Type screen allows you to set up the Router for the type
of Internet connection you have. Before setting up your connection type,
have your account information from your ISP ready.
Figure 18 Connection Type Screen
Select a mode from the following:
■ Disable — selecting this option means you do not want the Router to
connect to Internet.
■ Bridge Mode — RFC1483 Bridged Mode, see page 34
■ Dynamic IP — Using DHCP function, see page 35
■ Static IP — Using fixed IP, see page 36
■ PPPoE — PPP over Ethernet, providing routing for multiple PCs, see
page 37
34 CHAPTER 4: RUNNING THE SETUP WIZARD
■ PPTP — Point-to-Point Tunneling Protocol, see page 38
■ L2TP — Layer 2 Tunneling Protocol, see page 39
and click Next.
For further information on selecting a mode see Internet Settings on
page 60.
Bridge Mode
To set up the Router for use with an RFC1483 bridged connection, use
the following procedure:
Figure 19 Bridged Mode Screen
1 Enter the IP address and Subnet mask information.
2 Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 25).
Accessing the Setup Wizard 35
Dynamic IP
To set up the Router for use with a dynamic IP connection, use the
following procedure:
Figure 20 Host Name Screen
1 Host name is a name that some Internet Service Providers require for
connection to their system. This entry is optional, your Internet Service
Provider should provide this information.
2 Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 25).
36 CHAPTER 4: RUNNING THE SETUP WIZARD
Static IP
To set up the Router for use with a static IP connection, use the following
procedure:
Figure 21 Static IP Screen
To assign a fixed IP address:
1 Enter your Internet IP address in the IP address assigned by your Service
Provider field.
2 Enter the subnet mask in the Subnet Mask field.
3 Enter the default gateway IP address in the Service Provider Gateway
Address field.
4 Enter the DNS address in the DNS Address field.
5 If there is a secondary DNS, enter the IP address in the Secondary DNS
Address field.
6 Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 25).
Accessing the Setup Wizard 37
PPPoE Mode
To set up the Router for use with a PPPoE (PPP over Ethernet) connection,
use the following procedure:
Figure 22 PPPoE Screen
1 Enter your user name in the Username field.
2 Enter your password in the Password field.
3 Re-type your password in the Retype Password field.
4 The Service Name field is optional, enter this information if your ISP
requires it.
5 Enter the MTU information, the default is 1492.
6 Enter the maximum Idle Timeout for the Internet connection. After this
time has been exceeded the connection will be terminated. Check the
Auto Reconnect After Timeout box to automatically re-establish the
connection as soon as you attempt to access the Internet again.
7 Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 25).
38 CHAPTER 4: RUNNING THE SETUP WIZARD
PPTP Mode
To set up the Router for use with a PPTP (Point to Point Tunneling
Protocol) connection, use the following procedure:
Figure 23 PPTP Screen
1 Enter the PPTP Server information.
2 Enter the User ID and Password required by your ISP.
3 Retype the password.
4 Enter the maximum Idle Timeout for the Internet connection. After this
time has been exceeded the connection will be terminated.
5 Check the Get IP By DHCP box to receive IP address from your ISPs’ DHCP
function. If this box is not checked, enter the IP address, Subnet mask,
and Default Gateway information.
6 Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 25).
Accessing the Setup Wizard 39
L2TP mode
To set up the Router for use with a L2TP (Layer 2 Tunneling Protocol)
connection, use the following procedure:
Figure 24 L2TP Screen
1 Enter the L2TP Server information.
2 Enter the User ID and Password required by your ISP.
3 Retype the password.
4 Enter the maximum Idle Timeout for the Internet connection. After this
time has been exceeded the connection will be terminated.
5 Check the Get IP By DHCP box to receive IP address from your ISP’s DHCP
function. If this box is not checked, enter the IP address, Subnet mask,
and Default Gateway information.
6 Check all of your settings, and then click Next.
The LAN Settings screen will then be displayed (refer to Figure 25).
40 CHAPTER 4: RUNNING THE SETUP WIZARD
Setup Wizard - LAN
Settings
The LAN Settings screen allows you to set the default IP address and
DHCP client IP range for the Router.
Figure 25 The LAN Settings Screen
1 To change the Router’s default IP address, enter the new IP address in the
IP Address field, and then enter the subnet mask in the Subnet Mask
field.
2 Check the DHCP Server box to enable the DHCP function.
3 Enter the client IP address range in the IP Pool Start Address and IP Pool
End Address fields. You can also click Auto IP Range to automatically set
the starting and ending IP address: 192.168.1.2 ~ 192.168.1.254.
4 Click Next. The Wireless Settings screen will be displayed (refer to
Figure 26).
Accessing the Setup Wizard 41
Wizard - Wireless
Setting
The Wireless Settings screen allows you to set up the SSID and radio
channel used for the wireless connection.
Figure 26 Wireless Setting Screen
1 Select the channel you want to use from the Channel drop-down menu.
2 Specify the SSID to be used by your wireless network in the SSID field. If
there are other wireless networks in your area, you should give your
wireless network a unique name.
42 CHAPTER 4: RUNNING THE SETUP WIZARD
Wizard -
Configuration
Summary
When you have completed the Setup Wizard, a configuration summary
will appear. Verify the configuration information of the Router and then
click Apply to save your settings. 3Com recommends that you print out
this page for your records.
Figure 27 Configuration Summary Screen
Your Router is now configured and ready for use.
See Chapter 5 for a detailed description of the Router configuration.
5
CONFIGURING THE ROUTER
Navigating
Through the Router
Configuration
screens
Main Menu The main menu is located on the left side, as shown in Figure 28. When
Welcome Screen The Welcome screen shows the current software information.
Status
This chapter describes all the screens available through the Router
configuration screens, and is provided as a reference. To get to the
configuration screens, enter the Router’s default IP in the location bar of
your browser. The default IP is http://192.168.1.1.
However, if you changed the Router LAN IP address during initial
configuration, use the new IP address instead. Enter your password to
login to the management interface. (The default password is admin).
you click on an item from the main menu, the corresponding screen will
then appear in the center.
Figure 28 Welcome Screen
44 CHAPTER 5: CONFIGURING THE ROUTER
LAN Settings Your Router is equipped with a DHCP server that will automatically assign
IP addresses to each computer on your network. The factory default
settings for the DHCP server will work with most applications. If you need
to make changes to the settings, you can do so.
The LAN settings screen allows you to:
■ Change the default IP address of the Router. The default IP is
192.168.1.1
■ Change the Subnet Mask. The default setting is 255.255.255.0
■ Enable/Disable the DHCP Server Function. The default is “Enable”.
■ Specify the Starting and Ending IP Pool address. The default is
Starting: 2 / Ending: 254.
■ Specify the IP address Lease Time. The default is One day.
■ Specify a local Domain Name. This field is optional.
■ Specify the IP address of 3Com NBX call processor.
The Router will also provide a list of all client computers connected to the
Router.
LAN Settings The LAN Settings screen is used to specify the LAN IP address of your
Router, and to configure the DHCP server.
Figure 29 LAN Settings Screen
LAN Settings 45
1 Enter the Router’s IP Address and Subnet Mask in the appropriate fields.
The default IP address is 192.168.1.1.
2 If you want to use the Router as a DHCP Server, check Enable in the DHCP
Server field.
3 Enter the IP address range in the IP Pool Start Address and IP Pool End
Address fields.
4 Specify the DHCP Lease time by selecting the required value from the
Lease Time drop-down menu. The lease time is the length of time the
DHCP server will reserve the IP address for each computer.
5 Specify the Local Domain Name for your network (this step is optional).
6 Enter the IP address of the NBX Call Processor in the 3Com NBX Call
Processor field (this step is optional).
7 Check all of your settings, and then click Apply.
DHCP Clients List The DHCP Clients List provides details on the devices that have received IP
addresses from the Router. The list is only created when the Router is set
up as a DHCP server. A maximum of 253 clients can be connected to the
Router.
Figure 30 DHCP Clients List Screen
For each device that is connected to the LAN, the following information is
displayed:
■ IP address — The Internet Protocol (IP) address issued to the client
machine.
46 CHAPTER 5: CONFIGURING THE ROUTER
■ Host Name — The client machine’s host name, if configured.
■ MAC Address — The Media Access Control (MAC) address of the
client’s network card.
■ Client Type — Whether the client is connected to the Router by wired
or wireless connection.
■ Check the Fix checkbox to permanently fix the IP address.
■ Click Release to release the displayed IP address.
■ Click Add to allocate an IP address to a MAC address. Enter the
required details and click Apply to save your settings.
The DHCP server will give out addresses to both wired and wireless
clients.
Wireless Settings 47
Wireless Settings The Wireless Settings screens allow you to configure the settings for the
wireless connections.
You can enable or disable the wireless connection for your LAN. When
disabled, no wireless PCs can gain access to either the Internet or other
PCs on your wired or wireless LAN through this Router.
Figure 31 Wireless Settings Screen
There are 8 tabs available:
■ Configuration
■ Encryption
■ WPS
■ Connection Control
■ Client List
■ WMM
■ WDS
■ Advanced
48 CHAPTER 5: CONFIGURING THE ROUTER
Configuration The Wireless Configuration Screen allows you to turn on/ turn off the
wireless function, and set up basic wireless settings.
Figure 32 Wireless Configuration Screen
To enable the wireless function:
1 Check Enable Wireless Networking checkbox.
2 Select the wireless channel you want to use from the Channel drop-down
menu.
3 Select the Extension Channel.
4 Specify the SSID to be used by your wireless network in the SSID field. If
there are other wireless networks in your area, you should give your
wireless network an unique name.
5 Enable or disable SSID Broadcast.
A feature of many wireless network adapters is that a computer's SSID
can be set to ANY, which means it looks randomly for any existing
wireless network. The available networks are then displayed in a site
survey, and your computer can select a network. If you disable this SSID
broadcast function, you can block this random search, and set the
computer's SSID to a specific network (for example, WLAN). This
increases network security. If you decide to enable SSID Broadcast, ensure
that you know the name of your network first.
6 Select whether your Router will operate in 11b mode only, 11g mode
only, 11n mode only, or mixed mode from the Wireless Mode drop-down
menu.
7 Bandwidth: select the bandwidth to use.
Wireless Settings 49
8 Select to turn on/off the Protected Mode function.
9 Click Apply.
Encryption This feature prevents any non-authorized party from reading or changing
your data over the wireless network.
Figure 33 Encryption Screen
Select the wireless security mode that you want to use from the
drop-down menu, and click Apply. There are five selections:
■ Disabled
■ 64-bit WEP (see page 50)
■ 128-bit WEP (see page 51)
■ WPA-PSK (no server) (see page 52)
■ WPA (with RADIUS Server) (see page 53)
Disabled
In this mode, wireless transmissions will not be encrypted, and will be
visible to everyone. However, when setting up or debugging wireless
networks, it is often useful to use this security mode.
50 CHAPTER 5: CONFIGURING THE ROUTER
64-bit WEP
WEP is the basic mechanism to transmit your data securely over the
wireless network. Matching encryption keys must be setup on your
Router and wireless client devices to use WEP.
Figure 34 64-bit WEP Screen
To setup 64-bit WEP:
1 You can enter the 64-bit WEP key manually:
■ enter the WEP key as 5 pairs of hex digits (0-9, A-F).
Or you can generate the 64-bit WEP key automatically:
■ enter a memorable passphrase in the Passphrase field, and then
click Generate to generate the hex keys from the passphrase.
For 64-bit WEP, you can enter up to four keys, in the fields Key 1 to Key 4.
The radio button on the left hand side selects the key that is used in
transmitting data.
Note that all four WEP keys on each device in the wireless network must
be identical.
2 Click Apply.
Wireless Settings 51
128-bit WEP
WEP is the basic mechanism to transmit your data securely over the
wireless network. Matching encryption keys must be set up on your
Router and wireless client devices to use WEP.
Figure 35 128-bit WEP Screen
To setup 128-bit WEP:
1 You can enter the 128-bit WEP key manually:
■ enter your WEP key as 13 pairs of hex digits (0-9, A-F).
Or you can generate the 128-bit WEP key automatically:
■ enter a memorable passphrase in the Passphrase field, and then
click Generate to generate the hex keys from the passphrase.
The WEP keys on each device on the wireless network must be identical.
In 128-bit WEP mode, only one WEP key can be specified.
2 Click Apply.
52 CHAPTER 5: CONFIGURING THE ROUTER
WPA-PSK (no server)
WPA (Wi-Fi Protected Access) provides dynamic key changes and
constitutes the best security solution. If your network does not have a
RADIUS server. Select the no server option.
Figure 36 WPA-PSK (no server) Screen
1 Select WPA-PSK (no server) from the WPA drop-down menu.
2 Select WPA mode from the drop-down menu, three modes are
supported: WPA, WPA2, and Mixed mode.
3 Select Encryption technique from the drop-down menu, four options are
available: TKIP, AES, Auto for WPA AES for WPA2, and AES for both WPA
and WPA2.
4 Enter the pre-shared key in the Pre-shared Key (PSK) field. The pre-shared
key is a password, in the form of a word, phrase or series of letters and
numbers. The key must be between 8 and 63 characters long and can
include spaces and symbols. Each client that connects to the network
must use the same key.
5 If you want the key that you enter to be shown on the screen as a series
of asterisks (*), then check the Hide PSK checkbox.
6 Click Apply.
Wireless Settings 53
WPA (with RADIUS Server)
WPA (Wi-Fi Protected Access) provides dynamic key changes and
constitutes the best security solution. This function requires that a
RADIUS server is running on the network.
Figure 37 WPA (with RADIUS Server) Screen
1 Select WPA with RADIUS server from the Security Mode drop-down
menu.
2 Select WPA mode from the drop-down menu, three modes are
supported: WPA, WPA2, and Mixed mode.
3 Select Encryption technique from the drop-down menu, four options are
available: TKIP, AES, Auto for WPA AES for WPA2, and AES for both WPA
and WPA2.
4 Enter the IP address of the RADIUS server on your network into the
RADIUS Server field.
5 Enter the port number that the RADIUS server is operating on in the
RADIUS Port field.
6 Enter the key for the RADIUS server in the RADIUS Key field.
7 By default, the WPA keys are changed every hour, but if you want to
change this setting, you can do so by specifying the required time in the
Re-key Interval field.
8 Click Apply.
54 CHAPTER 5: CONFIGURING THE ROUTER
WPS Wireless Provisioning Services (WPS) is a standard for easy and secure
establishment of a wireless home network, created by the Wi-Fi Alliance.
3Com Wireless 11n Cable/DSL firewall Router supports the PIN method.
Check the Enable WPS Function box. The WPS-PIN field will appear.
Figure 38 WPS Screen
Enter the PIN code in the WPS-PIN field. And then click Apply.
Wireless Settings 55
Connection Control This feature is used to filter the clients based on their MAC addresses.
Check the Enable MAC Address Filtering checkbox, the Connection
Control screen will appear.
Figure 39 Connection Control Screen
There are two options available in the Access rule for registered MAC
address field:
■ if you click Allow, this means only the MAC addresses registered here
in the list will be allowed to access the Router via wireless link.
■ if you click Deny, this means the registered MAC addresses will not be
able to access the Router via wireless link.
Use the MAC Address Filtering List to quickly copy the MAC addresses of
the current wireless clients into the list table. You can define up to 32
MAC addresses to the list.
You can click Clear to delete the current entry in the list.
56 CHAPTER 5: CONFIGURING THE ROUTER
Client List You can view the list of all wireless clients that are connected to the
Router.
Figure 40 Client List Screen
Click Refresh to update the list.
Wireless Settings 57
WMM Wireless Multimedia (WMM) mode, which supports devices that meet the
802.11E QBSS standard. WMM uses traffic priority based on the four
ACs; Voice, Video, Best Effort, and Background. The higher the AC
priority, the higher the probability that data is transmitted.
Check the Enable WMM Function box, the WMM parameters table will
appear.
Figure 41 WMM Screen
The following table explains the four access categories:
Access Category WMM
Designation
AC_BE (AC0) Best Effort Normal priority, medium
AC_BK (AC1) Background Lowest priority. Data with no
AC_VI (AC2) Video High priority, minimum
AC_VO (AC3) Voice Highest priority, minimum
Description
delay and throughput. Data
only affected by long delays.
Data from applications or
devices that lack QoS
capabilities.
delay or throughput
requirements, such as bulk
data transfers.
delay. Time-sensitive data
such as streaming video.
delay. Time-sensitive data
such as VoIP (Voice over IP)
calls.
802.1D
Tags
0, 3
2, 1
5, 4
7, 6
58 CHAPTER 5: CONFIGURING THE ROUTER
WDS The Router supports WDS (Wireless Distribution System). WDS enables
one or more Access Points to rebroadcast received signals to extend
range and reach, though this can affect the overall throughput of data.
Figure 42 Wireless WDS Settings Screen
1 Check the Enable WDS Function checkbox.
2 To refresh the list of available access points, click Rescan Wireless
Networking.
3 Click Add to add the MAC address of the AP to the list, the add WDS
screen will appear (refer to Figure 43).
Figure 43 Add WDS screen
Enter the MAC address(es) of one or more access points in the AP MAC
Address table, and click Apply.
Wireless Settings 59
Advanced The Advanced screen allows you to configure detailed settings for your
wireless connection.
Figure 44 Wireless Advanced Setting Screen
There are six parameters that you can configure:
■ Beacon Interval: this represents the amount of time between beacon
transmissions.
■ DTIM Interval: A DTIM (Delivery Traffic Indication Message) is a
countdown mechanism used to inform your wireless clients of the
next window for listening to broadcast and multicast messages.
■ Fragmentation Threshold: this is the maximum size for directed data
packets transmitted. The use of fragmentation can increase the
reliability of frame transmissions. Because of sending smaller frames,
collisions are much less likely to occur.
■ RTS Threshold: RTS stands for Request to Send, this parameter
controls what size data packet the low level RF protocol issues to an
RTS packet.
■ CTS Protection Mode: CTS stands for Clear to Send. CTS Protection
Mode boosts the Router’s ability to intercept 802.11b/ 802.11g
transmissions. Conversely, CTS Protection Mode decreases
performance. Leave this feature disabled unless you encounter severe
communication difficulties between the Router and your wireless
clients.
■ AP Isolation Mode: AP Isolation is a function to prevent wireless clients
connected with the device from communicating with one another.
60 CHAPTER 5: CONFIGURING THE ROUTER
Internet Settings You can configure the settings for your WAN port connection.
WAN This feature is used to configure the parameters for your Internet
connection. The information necessary to complete these screens should
be obtained from your ISP. Check with your ISP first to find out what type
of connection you should choose.
Figure 45 WAN Screen
You should see the first entry already contains information that’s been
configured using the Wizard in the initial setup. If you want to change
that information or set up other connection, click Edit.
There are seven options available for the connection mode:
■ Disable — To disable the Internet connection function (see page 61)
■ Bridge Mode — RFC1483 Bridged Mode, (see page 61)
■ Dynamic IP — Using DHCP for WAN connection (see page 62)
■ Static IP — Using fixed IP for WAN connection (see page 63)
■ PPPoE — PPP over Ethernet, providing routing for multiple PCs (see
page 64)
■ PPTP — Point-to-Point Tunneling Protocol (see page 65)
■ L2TP — Layer 2 Tunneling Protocol (see page 66)
Internet Settings 61
Disable
Selecting this option means that you do not want your Router to connect
to the Internet.
Figure 46 Disable Internet Connection Screen
Bridge Mode
If your ISP limits access to the Internet to specific computers, this means
that traffic to/from these computers only will be forwarded. In this case,
Bridge Mode is used to connect to the ISP. The ISP will generally give one
Internet account and limit only one computer to access the Internet.
Check with your ISP to determine if this mode is used for your Internet
connection.
Figure 47 Bridge Mode Screen
Enter the IP address and Subnet mask information.
62 CHAPTER 5: CONFIGURING THE ROUTER
Dynamic IP
You can configure the Router to obtain an IP address automatically from a
DHCP server.
Figure 48 Dynamic IP Screen
1 Select Dynamic IP from the Internet sharing protocol drop-down menu.
2 If the ISP requires you to input a Host Name, type it in the Host Name
field.
3 Click Apply.
Internet Settings 63
Static IP
If your Service Provider has assigned a fixed IP address, enter the assigned
IP address information on the screen.
Figure 49 Static IP Screen
1 Select Static IP from the Internet sharing protocol drop-down menu.
2 Enter your IP address in the IP address assigned by your service provider
field.
3 Enter the subnet mask in the Subnet Mask field.
4 Enter the default gateway IP address in the Service Provider Gateway
Address field.
5 Enter DNS IP address.
6 If there is a secondary DNS, enter the IP address.
7 Click Apply.
64 CHAPTER 5: CONFIGURING THE ROUTER
PPPoE
PPP over Ethernet, provides routing for multiple PCs. To configure this
function correctly, you should obtain the information from your ISP.
Figure 50 PPPoE Settings Screen
1 Select PPPoE from the Internet sharing protocol drop-down menu.
2 Enter the user name assigned to you by your ISP in the Username field.
And enter the password assigned to you by your ISP in the Password field.
Re-enter your password in the Retype Password field.
3 The Service Name field is optional.
4 Enter the MTU value in the MTU field. Do not make changes to this
setting, unless your ISP specifically requires a different setting other than
1492.
5 If you want your Router to automatically disconnect from the Internet
after a period of inactivity, specify a time in the Idle Timeout field. (Enter a
value of 0 to disable this timeout). Check the Auto Reconnect After
Timeout box to automatically re-establish the connection as soon as you
attempt to access the Internet again.
6 Click Apply.
Internet Settings 65
PPTP
If your ISP uses PPTP as the Internet connection protocol, setup the details
on this screen.
Figure 51 PPTP Screen
1 Select PPTP from the Internet sharing protocol drop-down menu.
2 Enter the PPTP Server information.
3 Enter the user ID in the User ID field. And enter the password assigned to
you by your ISP in the Password field. Re-enter your password in the
Retype Password field.
4 If you want your Router to automatically disconnect from the Internet
after a period of inactivity, specify a time in the Idle Timeout field. (Enter a
value of 0 to disable this timeout).
5 If you receive the IP address from your ISP via DHCP function, check the
Get IP By DHCP box.
6 If no DHCP function is used, then enter the IP Address, Subnet Mask, and
Default Gateway information.
7 Click Apply.
66 CHAPTER 5: CONFIGURING THE ROUTER
L2TP
If your ISP uses L2TP as the Internet connection protocol, setup the details
on this screen.
Figure 52 L2TP Connection Screen
1 Select L2TP from the Internet sharing protocol drop-down menu.
2 Enter the L2TP Server information.
3 Enter the User ID and Password required by your ISP.
4 Retype the password.
5 Enter the maximum Idle Timeout for the Internet connection. After this
time has been exceeded the connection will be terminated.
6 Check the Get IP By DHCP box to receive IP address from your ISP’s DHCP
function. If this box is not checked, enter the IP address, Subnet mask,
and Default Gateway information.
7 Click Apply.
Internet Settings 67
DNS Domain Name Service (or Server) is an Internet service that translates
domain names into IP addresses. Because domain names are alphabetic,
they're easier to remember. The Internet however, is really based on IP
addresses. Every time you use a domain name, a DNS service must
translate the name into the corresponding IP address. For example, the
domain name www.example.com might translate to 198.105.232.4.
Check with your ISP for information on this screen.
Figure 53 DNS Screen
If the DNS information is automatically provided by your ISP every time
you connect to it, check the Automatic from ISP checkbox.
If your ISP provided you with specific DNS addresses to use, enter them
into the appropriate fields on this screen and click Apply.
Many ISPs do not require you to enter this information into the Router. If
you are using a Static IP connection type, you may need to enter a
specific DNS address and secondary DNS address for your connection to
work properly. If your connection type is Dynamic or PPPoE, it is likely that
you do not have to enter a DNS address.
68 CHAPTER 5: CONFIGURING THE ROUTER
Clone MAC address To configure the Hostname and Clone MAC Address information for your
Router, select Internet Settings, then go to the Clone MAC address tab.
The Hostname and MAC Address screen displays.
Figure 54 Hostname and Clone MAC Address Screen
1 Some ISPs require a host name. If your ISP has this requirement, enter the
host name in the Host Name field.
2 Three different ways to configure the WAN MAC Address:
■ If your ISP requires an assigned MAC address, enter the values in the
WAN MAC address field.
or
■ If the computer that you are using is the one that was previously
connected directly to the cable modem, click Clone.
or
■ To reset the MAC Address to the default, click Reset MAC.
3 Click Apply to save the settings.
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