Trendnet TW100-BRF104 User Manual
TW100-BRF104
Broadband Router + Firewall
User’s Guide
Version 1.00
November 2001
TW100-BRF104 Broadband Router+Firewall
Table of Contents
List of Figures............................................................................................................................................ iv
List of Tables.............................................................................................................................................vi
1.1 About the TW100-BRF104 Broadband Router+Firewall............................................................1-1
1.2 Key Features ................................................................................................................................ 1-1
1.3 Features in Detail.........................................................................................................................1-2
1.4 Application ..................................................................................................................................1-6
2.1 Package Contents......................................................................................................................... 2-1
2.2 System Requirements ..................................................................................................................2-1
2.3 TW100-BRF104 Broadband Router+Firewall Front Panel ......................................................... 2-2
2.4 TW100-BRF104 Broadband Router+Firewall Back Panel..........................................................2-2
2.5 Connecting the Broadband Router+Firewall ...............................................................................2-3
2.6 Back to Factory Defaults .............................................................................................................2-4
3.1 Introduction..................................................................................................................................3-1
3.2 Preparing Your Personal Computers for IP Networking .............................................................3-1
3.3 Configuring Windows 95 or later for IP Networking .................................................................. 3-2
3.4 Configuring the Macintosh for IP Networking............................................................................3-4
3.5 Your Internet Account .................................................................................................................3-6
3.6 Ready For TW100-BRF104 Broadband Router+Firewall Configuration....................................3-8
4.1 Web Configurator And Browsers ................................................................................................4-1
4.2 Introducing The Embedded Web Configurator............................................................................4-2
5.1 Setup ............................................................................................................................................ 5-1
5.2 System .........................................................................................................................................5-5
5.3 LAN Setup...................................................................................................................................5-6
5.4 Status ...........................................................................................................................................5-9
6.1 Dynamic DNS..............................................................................................................................6-1
ii Table Of Contents
6.2 Port Forwarding ...........................................................................................................................6-3
6.3 Static Route..................................................................................................................................6-6
6.4 Dynamic Route ..........................................................................................................................6-10
6.5 Upgrade and Backup..................................................................................................................6-12
6.6 Remote Management .................................................................................................................6-16
6.7 Diagnostic ..................................................................................................................................6-19
7.1 Security Management ..................................................................................................................7-1
7.2 Web Patrol ...................................................................................................................................7-4
7.3 Services........................................................................................................................................7-7
7.4 Log ...............................................................................................................................................7-9
8.1 Problem Scenarios........................................................................................................................8-1
8.2 FAQ .............................................................................................................................................8-3
Table Of Contents iii
TW100-BRF104 Broadband Router+Firewall
List of Figures
Figure 1-1 Broadband Router+Firewall Application...................................................................................1-6
Figure 3-1 Configuring Windows for IP Networking..................................................................................3-2
Figure 3-2 Macintosh TCP/IP......................................................................................................................3-5
Figure 3-3 Verifying Macintosh TCP/IP .....................................................................................................3-5
Figure 4-1 Login Window ...........................................................................................................................4-2
Figure 4-2 Embedded Web Configurator Home..........................................................................................4-3
Figure 5-1 WAN Setup................................................................................................................................5-2
Figure 5-2 System Setup..............................................................................................................................5-5
Figure 5-3 LAN Setup .................................................................................................................................5-7
Figure 5-4 DHCP Client Table ..................................................................................................................5-88
Figure 5-5 Status Screen............................................................................................................................5-99
Figure 5-6 Statistics Screen .....................................................................................................................5-111
Figure 6-1 Dynamic DNS Setup.................................................................................................................. 6-2
Figure 6-2 Port Forwarding .........................................................................................................................6-5
Figure 6-3 Static Route................................................................................................................................6-7
Figure 6-4 Show Routing Table...................................................................................................................6-9
Figure 6-5 Dynamic Route ........................................................................................................................6-11
Figure 6-6 Upgrade and Backup................................................................................................................6-12
Figure 6-7 Upgrade System Software........................................................................................................6-13
Figure 6-8 Restore Factory Default Configurations ..................................................................................6-14
Figure 6-9 Backup Current Configurations ...............................................................................................6-15
Figure 6-10 Restore Previously Saved Configurations..............................................................................6-15
Figure 6-11 Remote Management .............................................................................................................6-17
Figure 6-12 Diagnostic ............................................................................................................................6-179
Figure 7-1 Security Management ................................................................................................................7-2
iv List of Figures
Figure 7-2 Web Patrol..................................................................................................................................7-5
Figure 7-3 Services ....................................................................................................................................7-58
Figure 7-4 Security/Services Event Log ..................................................................................................7-510
Figure 7-5 Web Patrol Log ......................................................................................................................7-512
List of Figures v
TW100-BRF104 Broadband Router+Firewall
List of Tables
Table 2-1 Front Panel LEDs........................................................................................................................2-2
Table 2-2 Back Panel Connectors................................................................................................................2-2
Table 5-1 WAN Setup .................................................................................................................................5-3
Table 5-2 System Setup...............................................................................................................................5-6
Table 5-3 LAN Setup...................................................................................................................................5-7
Table 5-4 DHCP Client Table .....................................................................................................................5-9
Table 5-5 Status Screen ...........................................................................................................................5-100
Table 5-6 Statistics Screen.......................................................................................................................5-111
Table 6-1 Dynamic DNS Setup ...................................................................................................................6-2
Table 6-2 Port Table Entries (Example) ...................................................................................................... 6-4
Table 6-3 Port Forwarding...........................................................................................................................6-6
Table 6-4 Static Route .................................................................................................................................6-8
Table 6-5 Show Static Routing Table........................................................................................................ 6-10
Table 6-6 Dynamic Route..........................................................................................................................6-11
Table 6-7 Upgrade and Backup .................................................................................................................6-13
Table 6-8 Remote Management.................................................................................................................6-18
Table 6-9 Diagnostic..............................................................................................................................6-1820
Table 7-1 Security Management..................................................................................................................7-3
Table 7-2 Web Patrol................................................................................................................................... 7-6
Table 7-3 Services .....................................................................................................................................7-69
Table 7-4 Security/Services Event Log ...................................................................................................7-611
Table 7-5 Web Patrol Log .......................................................................................................................7-612
vi List of Tables
TW100-BRF104 Broadband Router+Firewall
Chapter 1
Introduction
1.1 About the TW100-BRF104 Broadband Router+Firewall
The TW100-BRF104 Broadband Router+Firewall provides continuous, high-speed 11 Mbps access
between your Ethernet devices. In addition, it connects your entire network to the Internet through an
external broadband access device (such as a cable modem or DSL modem) that is normally intended for
use by a single computer.
The TW100-BRF104 Broadband Router+Firewall provides you with multiple Web Patrol options, plus
browsing activity reporting and instant alerts - both via e-mail. Parents and network administrators can
establish restricted access policies based on time-of-day, Website addresses and address keywords, and
share high-speed cable/DSL Internet access for up to 253 personal computers. Network Address
Translation (NAT) and DoS prevention protects you from hackers.
With minimum setup, you can install and use the Broadband Router+Firewall within minutes.
1.2 Key Features
Built in 4-port LAN 10/100 Mbps Ethernet UTP Switch
• Half-duplex or full-duplex operation
• Allows LAN connections at 10 megabits per second (Mbps) or 100 Mbps
• Auto sensing Ethernet (10BASE-T) or Fast Ethernet (100BASE-Tx) transmissions
th
• Normal/uplink selective switch at the 4
One Ethernet UTP port for WAN connection
• Ethernet connection to a wide area network (WAN) device, such as a cable modem or DSL
modem
Embedded FTP Server for firmware upgrade
Embedded FTP Server configuration backup and restore
Scripting and spoofing for major cable providers
Restore Factory Defaults Button to reset to factory default IP address, password, and other
configurations
Introduction 1-1
LAN port
TW100-BRF104 Broadband Router+Firewall
Embedded Web Configurator for easy setup and management
Security
• DoS (Denial of Service) prevention
• SPI (Stateful Packet Inspection)
• Applications Services Management
• Login capability
• Web browsing Patrol by using URL keyword blocking
• Auditing and e-mail reporting of web browsing activities
• Network Address Translation (NAT) hides local computers from the Internet
• Powerful packet filtering capabilities
• Incoming port forwarding and DMZ for specific services
Protocol Support
• IP routing
• Dynamic extended Network Address Translation (NAT+) with port forwarding for operation
with a single static or dynamic IP address
• Dynamic Host Configuration Protocol (DHCP) server for dynamically assigning network
configuration information to computers on the LAN
• DHCP client for dynamically obtaining configuration information from the Internet Service
Provider (ISP)
• DNS Proxy for simplified configuration
• PPP over Ethernet (PPPoE) support
• PPTP support
1.3 Features in Detail
1.3.1 NAT Implementation
The implementation of NAT allows for specific ports redirection, and provides support for the following
“NAT-unfriendly” applications:
• NetMeeting
1-2 Introduction
TW100-BRF104 Broadband Router+Firewall
• CuSeeMe
• Microsoft PPTP client
• Microsoft Traceroute
• RealAudio
• VDOlive
• IRC
• ICQ
• Quake, Quake variants, and other popular games
• Port Forwarding
The Broadband Router+Firewall also allows VPN (IPSec & PPTP) packets to pass though NAT.
1.3.2 Scripting Requirements
The TW100-BRF104 Broadband Router+Firewall supports login scripting and monitoring requirements for
major cable modem deployments such as RoadRunner.
1.3.3 Security
The TW100-BRF104 Broadband Router+Firewall is equipped with several features designed to maintain
security, as described in this section.
Password Security
PAP and CHAP support (RFC 1334 plus major vendor variations) if required in login script.
Computers Hidden By NAT
Network address translation (NAT) opens a temporary path to the Internet for requests originating
from the local network. Requests originating from outside the LAN are discarded, preventing
users outside the LAN from finding and directly accessing the computers on the LAN.
Port Forwarding With NAT
Although NAT prevents Internet locations from directly accessing the computers on the LAN, the
Broadband Router+Firewall allows you to direct incoming traffic to specific computers based on
the service port number of the incoming request, or to one designated “DMZ” host computer.
1.3.4 Firewall
Access Control (Application Services Management)
Block selected application services, such as ICQ, MSN messenger, on-line games, and so on.
Introduction 1-3
TW100-BRF104 Broadband Router+Firewall
DoS (Denial Of Service) Prevention
Protect the devices in the LAN from hacker attacks.
Real Time Alert
While services are to access, or hacker attempt to attack, a real time alert via email will be sent
to the assigned administrator.
Schedule
The TW100-BRF104 allows the user to specify the day and time to blocking.
Trusted Host
The TW100-BRF104 allows the user to specify one Trusted host from blocking by the fixed IP
address.
Periodical Reports And Logs
• The Security events and services activities will be recorded sequentially. The log will
always keep the latest 128 entries.
• The log can be sent to the assigned administrator via email by weekly, daily, or every
periodical report page.
1.3.5 Web Patrol
With its Web Patrol features, the TW100-BRF104 Broadband Router+Firewall prevents objectionable web
contents from reaching your computers. Its Web Patrol features include:
Web Patrol By Domain Or Keyword
The TW100-BRF104 uses Web Patrol to enforce your network’s Internet access policies. The
Broadband Router+Firewall allows you to control access to Internet content by screening for
keywords within Web URLs.
Alert Of Inappropriate Use
You can configure the Broadband Router+Firewall to send an immediate alert e-mail message to
you whenever a local user attempts to access a blocked Web site.
Schedule
The TW100-BRF104 allows the user to specify the day and time to blocking.
Trusted Host
The TW100-BRF104 allows the user to specify one Trusted host from blocking by the fixed IP
address.
Periodical Reports And Logs
1-4 Introduction
TW100-BRF104 Broadband Router+Firewall
• The URL of websites visited will be recorded sequentially. The log will always keep the
latest 128 websites entries. The string of each entry should be no more than 128 bytes.
• The log of websites visited can be sent to the assigned administrator via email by weekly,
daily, or every periodical report page included the latest 128 websites visited list.
1.3.6 Auto-sensing 10/100 Ethernet
With its internal, 4-port 10/100 switch, The TW100-BRF104 Broadband Router+Firewall can connect to
either a 10 Mbps standard Ethernet network or a 100 Mbps Fast Ethernet network. The local LAN interface
is auto-sensing and is capable of full-duplex or half-duplex operation.
The TW100-BRF104 Broadband Router+Firewall provides a Normal/Uplink button. By pushing the button
once, the 4
'uplink' connection (e.g. connecting to a Broadband Router+Firewall, switch, or hub).
th
Local Ethernet port can have either a 'normal' connection (e.g. connecting to a computer) or an
1.3.7 TCP/IP
The TW100-BRF104 Broadband Router+Firewall supports the Transmission Control Protocol/Internet
Protocol (TCP/IP) and Routing Information Protocol (RIP).
IP Address Masquerading By Dynamic NAT+
The TW100-BRF104 Broadband Router+Firewall allows several networked computers to share an
Internet account using only a single IP address, which may be statically or dynamically assigned by
your Internet service provider (ISP). This technique, an extension of Network Address Translation
(NAT), is also known as IP address masquerading and allows the use of an inexpensive single-user
ISP account.
Automatic Configuration Of Attached Computers By DHCP
The TW100-BRF104 Broadband Router+Firewall dynamically assigns network configuration
information, including IP, gateway, and domain name server (DNS) addresses, to attached computers
on the LAN using the Dynamic Host Configuration Protocol (DHCP). This feature greatly simplifies
configuration of LAN-attached computers.
DNS Proxy
When DHCP is enabled and no DNS addresses are specified, the Broadband Router+Firewall
provides its own address as a DNS server to the attached computers. The Broadband Router+Firewall
obtains actual DNS addresses from the ISP during connection setup and forwards DNS requests from
the LAN.
PPP Over Ethernet (PPPoE) And PPTP
PPP over Ethernet and PPTP are protocols for connecting remote hosts to the Internet over an
always-on connection by simulating a dial-up connection.
Introduction 1-5
TW100-BRF104 Broadband Router+Firewall
1.3.8 Easy Installation and Management
You can install, configure, and operate the TW100-BRF104 Broadband Router+Firewall within minutes
after connecting it to the network. The following features simplify installation and management tasks:
Web Configurator
The Web Configurator allows you to easily configure your Broadband Router+Firewall from
almost any type of personal computer, such as Windows, Macintosh, or Linux.
Visual Monitoring
The TW100-BRF104 Broadband Router+Firewall front panel LEDs provide an easy way to
monitor its status and activity.
1.4 Application
The TW100-BRF104 Broadband Router+Firewall is a small-office or home-office device that allows a
small LAN to access the Internet or a remote office through an external single-host device such as a cable
modem or xDSL modem. By integrating NAT and DoS prevention, TW100-BRF104 provides not only the
ease of installation and Internet access, but also the most completed security solution to protect your
intranet and efficient network management for data traffic.
The TW100-BRF104 has four single auto-sensing 10/100BASE-T Ethernet ports for connection to the
user’s local network, and a single 10BASE-T port for connection to an external WAN-access device.
Figure 1-1 Broadband Router+Firewall Application
1-6 Introduction
TW100-BRF104 Broadband Router+Firewall
Chapter 2
Hardware Setup
2.1 Package Contents
The product package should contain the following items:
The Broadband Router+Firewall
User’s Guide on the CD-ROM
Quick Installation Guide (in print)
5VDC, 2.4A power adaptor
One straight-through category 5 Ethernet cable
If any of the parts are incorrect, missing, or damaged, contact your dealer. Keep the box, sleeve, including
the original packing materials, in case you need to return the Broadband Router+Firewall for repair.
2.2 System Requirements
The TW100-BRF104 Broadband Router+Firewall is intended for use in a network of personal computers
that are interconnected by twisted-pair Ethernet cables.
2.2.1 Computer Requirements
To install and run the TW100-BRF104 Broadband Router+Firewall over your network of computers, each
computer must have the following:
An Ethernet Network Interface Card (NIC).
For interconnecting your wired Ethernet devices, the TW100-BRF104 Broadband Router+Firewall
provides a 4-port switch capable of either 10 Mbps or 100 Mbps operation. Links operating at 100 Mbps
must be connected with Category 5 cable.
2.2.2 Access Device Requirement
The shared broadband access device (cable modem or DSL modem) must provide a standard 10BASE-T
Ethernet interface.
Hardware Setup 2-1
TW100-BRF104 Broadband Router+Firewall
2.3 TW100-BRF104 Broadband Router+Firewall Front Panel
The TW100-BRF104 Broadband Router+Firewall front panel LEDs provide an easy way to monitor its
status and activity.
Table 2-1 Front Panel LEDs
LED LABEL Power Test Internet Local
1 2 3 4
LED COLOR
LED STATUS
Green steady Power On
Green blink N/A Transmitting/Receiving 10 Mbps Transmitting/Receiving
Yellow steady N/A N/A 100 Mbps Link
Yellow blink N/A
OFF Power Off
Green Green
Yellow
Test OK
- Diagnostic: G/Y blinking
reciprocally within 1 min
- Error: G/Y blinking
reciprocally after 1 min
Off
Link 10 Mbps Link
N/A 100 Mbps Transmitting/Receiving
No Connection No Connection
Green Green
Yellow
2.4 TW100-BRF104 Broadband Router+Firewall Back Panel
The TW100-BRF104 Broadband Router+Firewall contains port connections, and power connection. The
rear panel contains the following features:
5 VDC power adapter outlet
Internet Ethernet port for connecting the Broadband Router+Firewall to a cable or DSL modem
Four Local Fast Ethernet ports for connecting the Broadband Router+Firewall to local computers
Normal/Uplink push button for Internet Port and the 4
th
Local Port
Default Restore button
Table 2-2 Back Panel Connectors
BACK PANEL CONNECTOR DESCRIPTION
LAN Ethernet Port Four 10/100M BASE-T RJ-45 connectors
WAN Ethernet Port One RJ-45 10BASE-T connector
Cascade Uplink Switches One uplink switch to set LAN port #4 as normal port or uplink port
2-2 Hardware Setup
TW100-BRF104 Broadband Router+Firewall
One uplink switch to set WAN port as normal/uplink
Restore Factory Defaults Button Capable of restoring the factory default settings.
The switch is accessible by inserting a pin through the hole in the rear
panel.
Power Supply 5 VDC at 2.4 Amp Max.
2.5 Connecting the Broadband Router+Firewall
Before using your Broadband Router+Firewall, you need to do the followings:
Connect your local Ethernet network to the LAN port(s) of the Broadband Router+Firewall.
Connect your cable or DSL modem to the WAN port of the Broadband Router+Firewall.
Connect the power adapter.
2.5.1 Connecting to your Local Ethernet Network
The TW100-BRF104 Broadband Router+Firewall incorporates a four-port switch for connection to your
local Ethernet network. The Fast Ethernet ports are marked Local 10/100M, and are capable of operation at
either 10 Mbps (10BASE-T) or 100 Mbps (100BASE-Tx), depending on the Ethernet interface of the
attached computer, hub, or switch. For any connection that will operate at 100 Mbps, you must use a
Category 5 (Cat 5) rated cable, such as the Ethernet cable included with the Broadband Router+Firewall.
Connect up to four computers directly to any of the four LAN ports of the Broadband Router+Firewall
using standard Ethernet cables.
If your local network consists of more than four hosts, you will need to connect your Broadband
Router+Firewall to another hub or switch: Connect any port 4 of your TW100-BRF104 Broadband
Router+Firewall to any port of an Ethernet hub or switch using a standard or crossover Ethernet cable.
2.5.2 Connecting to Your Internet Access Device
To connect the Broadband Router+Firewall to the WAN use the Ethernet cable provided with your cable
modem or DSL modem, connect the Broadband Router+Firewall’s WAN port to the 10BASE-T Ethernet
port on your modem.
The attached modem device must provide a standard 10BASE-T Ethernet connection. The TW100BRF104 Broadband Router+Firewall does not include a cable for this connection. Instead, use the Ethernet
cable provided with your access device or any other standard 10BASE-T Ethernet cable. If you are using a
DSL modem, the modem’s connection to the phone line remains unchanged.
Hardware Setup 2-3
TW100-BRF104 Broadband Router+Firewall
The Ethernet cable supplied by your ISP for connecting to your cable or DSL modem may be an Ethernet
crossover cable or a straight-through cable. You can push the normal/uplink button in the Broadband
Router+Firewall to connect the modem well.
2.5.3 Connecting the Power Adapter
To connect the Broadband Router+Firewall to the power adapter:
1. Plug the connector of the power adapter into the 5 VDC adapter outlet on the rear panel of the
Broadband Router+Firewall.
2. Plug the other end of the adapter into a standard wall outlet.
3. Verify that the POWER LED on the Broadband Router+Firewall is light.
2.5.4 Verifying Power and Connections
After applying power to the Broadband Router+Firewall, complete the following steps to verify that power
is correctly applied and that you have the proper connections:
1. When power is first applied, verify that the Power LED is steady on (green and not blinking).
2. After approximately 30~60 seconds, verify that:
The Test LED is steady green on. If this LED is still blinking after one minute, then an
error has occurred. If it is reciprocally blinking with yellow and green within one minute,
the Broadband Router+Firewall is performing self-diagnostic tests.
The Local LEDs are lit green for any local ports that are connected to a 10 Mbps device
and are lit yellow when connected to a 100 Mbps device. These LEDs blink when there is
traffic.
The Internet LED is lit steady green when a link has been established to a connected
device. This LED blinks when there is traffic.
2.6 Back to Factory Defaults
The factory default configuration settings are:
• Web Configurator password is 1234
• The IP address to 192.168.1.1
You can erase the current configuration and restore factory defaults in two ways:
1. Use the Restore Factory Default Configurations function of the Web Configurator.
2-4 Hardware Setup
TW100-BRF104 Broadband Router+Firewall
2. Use the Restore Factory Defaults button on the rear panel of the Broadband Router+Firewall.
Use this method for cases when the Web Configurator password or IP address is not known.
2.6.1 Procedure To Use the Restore Factory Defaults Button
1. Press the Restore Factory Defaults button for 10 seconds, and then release it. If the TEST LED
begins to blink, the defaults have been restored and the router is now rebooting. Otherwise, go to
step 2.
2. Disconnect the power from the router.
3. While depressing the Restore Factory Defaults button, reconnect power to the router.
4. Continue to hold the Restore Factory Defaults button. The TEST LED will begin to blink, then
will flicker very quickly after about 10 or 15 seconds. This indicates that the defaults have been
restored and the device is now rebooting.
5. Release the Restore Factory Defaults button and wait for the device to reboot.
You are now ready to begin configuration of your network, as described in the following chapter.
Hardware Setup 2-5
TW100-BRF104 Broadband Router+Firewall
Chapter 3
Preparing Your Network
3.1 Introduction
This chapter describes how to prepare your computer network to connect to the Internet through the
TW100-BRF104 Broadband Router+Firewall and how to order broadband Internet service from an Internet
service provider (ISP).
3.2 Preparing Your Personal Computers for IP Networking
The TW100-BRF104 Broadband Router+Firewall uses the Transmission Control Protocol/Internet Protocol
(TCP/IP). In order to access the Internet through the Broadband Router+Firewall, each computer on your
network must have TCP/IP installed and selected as the networking protocol.
Most operating systems include the software components you need to install and use TCP/IP on your
computer:
Windows 95 or later (including Windows NT) includes the software components for establishing a
TCP/IP network.
Windows 3.1 does not include a TCP/IP component. You need to purchase a third-party TCP/IP
application.
Macintosh Operating System 7 or later includes the software components for establishing a
TCP/IP network.
All versions of UNIX or Linux include TCP/IP components.
Follow the instructions provided with your operating system or networking software to install TCP/IP on
your computer. Although TCP/IP is built into the Windows operating system (starting with Windows 95),
you need to enable and configure it (see later).
In your IP network, all computers and the Broadband Router+Firewall must be assigned IP addresses. Each
computer must also have certain other IP configuration information such as a subnet mask (netmask), a
domain name server (DNS) address, and a default gateway address. In most cases, you should install
TCP/IP so that the computer obtains its specific network configuration information from a DHCP server
during boot-up.
Preparing Your Network 3-1
TW100-BRF104 Broadband Router+Firewall
The TW100-BRF104 Broadband Router+Firewall is shipped pre-configured as a DHCP server. The
gateway assigns the following TCP/IP configuration information automatically when the computers are
rebooted:
Computer IP addresses - 192.168.1.2 through 192.168.1.32
Subnet mask - 255.255.255.0
Gateway address - 192.168.1.1
These addresses are part of the IETF-designated private address range for use in private networks.
3.3 Configuring Windows 95 or later for IP Networking
As part of the computer preparation process, you need to manually install and configure TCP/IP on each
networked computer. Before starting, locate your Windows CD; you may need to insert it during the
TCP/IP installation process.
Figure 3-1 Configuring Windows for IP Networking
3.3.1 To configure Microsoft Windows 95 or later for IP networking:
1. On the Windows taskbar, click the Start button, point to Settings, and then click Control Panel.
2. Double-click the Network icon.
The Network window opens, which displays a list of installed components:
You must have a network adapter, the TCP/IP protocol, and Client for Microsoft Networks.
3-2 Preparing Your Network
TW100-BRF104 Broadband Router+Firewall
If you need the adapter:
a. Click the Add button.
b. Select Adapter, and then click Add.
c. Select the manufacturer and model of your network adapter, and then click OK.
If you need TCP/IP:
a. Click the Add button.
b. Select Protocol, and then click Add.
c. Select Microsoft.
It is not necessary to remove any other network components shown in the
Network window in order to install the adapter, TCP/IP, or Client for Microsoft
Networks.
d. Select TCP/IP, and then click OK.
If you need Client for Microsoft Networks:
a. Click the Add button.
b. Select Client, and then click Add.
c. Select Microsoft.
d. Select Client for Microsoft Networks, and then click OK.
3. Restart your computer for the changes to take effect.
3.3.2 Configuring TCP/IP Properties
After the TCP/IP protocol components are installed, each computer must be assigned specific information
about itself and resources that are available on its network. The simplest way to configure this information
is to allow the computer to obtain the information from the internal DHCP server of the TW100-BRF104
Broadband Router+Firewall.
If you are using DHCP with the recommended default addresses, you can configure your computers by
following these steps:
1. Install TCP/IP on each computer, leaving the computer configured to obtain configuration settings
automatically (by DHCP).
2. Connect your Ethernet-interfaced computers to the Broadband Router+Firewall.
3. Restart the TW100-BRF104 Broadband Router+Firewall and allow it to boot.
Preparing Your Network 3-3
TW100-BRF104 Broadband Router+Firewall
4. Restart each computer.
If an ISP technician configured your computer during the installation of a
broadband modem, or if you configured it using instructions provided by your
ISP, you may need to copy the current configuration information for use in the
configuration of your TW100-BRF104 Broadband Router+Firewall.
3.3.3 Verifying TCP/IP Properties (Windows)
After your computer is configured and has rebooted, you can check the TCP/IP configuration using:
winipcfg.exe for Windows 95, 98, and Millennium utility
ipconfig.exe for Windows NT and Win 2000 Professional systems
To check your computer’s TCP/IP configuration:
1. On the Windows taskbar, click the Start button, and then click Run. The Run window opens.
2. Type
3. Select your network adapter. The window is updated to show your settings, which should match
winipcfg, and then click OK. The IP Configuration window opens, which lists (among
other things), your IP address, subnet mask, and default gateway.
the values below if you are using the default TCP/IP settings:
The IP address is between 192.168.1.2 and 192.168.1.32
The subnet mask is 255.255.255.0
The default gateway is 192.168.1.1
3.4 Configuring the Macintosh for IP Networking
Beginning with Macintosh Operating System 7, TCP/IP is already installed on the Macintosh. On each
networked Macintosh, you will need to configure TCP/IP to use DHCP by following these steps:
1. From the Apple menu, select Control Panels, then TCP/IP. The TCP/IP Control Panel opens:
3-4 Preparing Your Network
TW100-BRF104 Broadband Router+Firewall
Figure 3-2 Macintosh TCP/IP
2. From the Connect via box, select your Macintosh’s Ethernet interface.
3. From the Configure box, select Using DHCP Server. You can leave the DHCP Client ID box
empty.
4. Close the TCP/IP Control Panel.
5. Repeat this for each Macintosh on your network.
3.4.1 Verifying TCP/IP Properties (Macintosh)
After your Macintosh is configured and has rebooted, you can check the TCP/IP configuration by returning
to the TCP/IP Control Panel. From the Apple menu, select Control Panels, then TCP/IP.
Figure 3-3 Verifying Macintosh TCP/IP
The panel is updated to show your settings, which should match the values below if you are using the
default TCP/IP settings:
The IP Address is between 192.168.1.2 and 192.168.1.32
The Subnet mask is 255.255.255.0
The Broadband Router+Firewall address is 192.168.1.1
Preparing Your Network 3-5
TW100-BRF104 Broadband Router+Firewall
If you do not see these values, you may need to restart your Macintosh or you may need to switch the
Configure setting to a different option, then back again to Using DHCP Server.
3.5 Your Internet Account
For access to the Internet, you need to contract with an Internet service provider (ISP) for a single-user
Internet access account using an external broadband access device such as a cable modem or DSL modem.
This modem must be a separate physical box (not a card) and must provide an Ethernet port intended for
connection to a Network Interface Card (NIC) in a computer.
For a single-user Internet account, your ISP supplies TCP/IP configuration information for one computer.
With a typical account, much of the configuration information is dynamically assigned when your
computer is first booted up while connected to the ISP, and you will not need to know that dynamic
information.
In order to share the Internet connection among several computers, your Broadband Router+Firewall takes
the place of the single computer, and you need to configure it with the TCP/IP information that the single
computer would normally use. When the Broadband Router+Firewall’s WAN port is connected to the
broadband modem, the Broadband Router+Firewall appears to be a single computer to the ISP. The
Broadband Router+Firewall then allows the computers on the local network to masquerade as the single
computer to access the Internet through the broadband modem. The method used by the Broadband
Router+Firewall to accomplish this is called Network Address Translation (NAT) or IP masquerading.
3.5.1 Login Protocols
Some ISPs require a special login protocol. In this case, you will need to know what type of protocol is
used, and you will need a login name and password. The two common protocols are:
PPP over Ethernet (PPPoE)
Two common PPPoE clients are WinPOET and EntreNet.
RoadRunner
Not all RoadRunner service areas require a login protocol. If your ISP is RoadRunner, you should
ask whether your computer must run a RoadRunner login program.
After your network and Broadband Router+Firewall are configured, the Broadband Router+Firewall will
perform the login task when needed, and you will no longer need to login from your computer.
3.5.2 Account Information
Unless the ISP dynamically assigns these items, your ISP should give you the following basic information
for your account:
3-6 Preparing Your Network
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