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Chapter 1: What’s in this Guide?

This guide covers the basic steps for setting up a network with a router. After going through “Chapter 3: Getting to Know the Router,” most users will only need to use the following chapters:

  • Chapter 4: Connecting the Router This chapter instructs you on how to connect the Router to your cable or DSL modem, PCs, and telephones (or fax machines).
  • Chapter 5: Configuring the Router This chapter explains how to configure the Router using your web browser and the Router’s Web-based Utility. You will configure the Router using the settings provided by your ISP.

When you’re finished with the basic steps, then you are ready to connect to the Internet.

You also have other chapters available for reference:

  • Chapter 1: Introduction This chapter describes the Router’s applications and this Installation and Troubleshooting Guide.
  • Chapter 2: Networking Basics This chapter briefly explains how a network functions.
  • Appendix A: Troubleshooting This appendix describes some possible problems and solutions, as well as frequently asked questions, regarding installation and use of the Router.
  • Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter This appendix instructs you on how to find the MAC address or Ethernet address of your PC’s Ethernet network adapter.
  • Appendix C: Windows Help This appendix describes how you can use Windows Help for instructions about networking, such as installing the TCP/IP protocol.
  • Appendix D: Glossary This appendix gives a brief glossary of terms frequently used in networking.
  • Appendix E: Specifications This appendix provides the technical specifications for the Router.
  • Appendix F: Warranty Information This appendix supplies the warranty information for the Router.
  • Appendix G: Regulatory Information This appendix supplies the regulatory information regarding the Router.
  • Appendix H: Contact Information This appendix provides contact information for a variety of Linksys resources, including Technical Support.

Broadband Router with 2 Phone Ports

Chapter 2: Networking Basics
An Introduction to Local Area Networks
Simply put, a router is a network device that connects two networks together.
The Router connects your local area network (LAN), or the group of PCs in your home or office, to the Internet.
The Router processes and regulates the data that travels between these two networks.
The Router’s Network Address Translation (NAT) technology protects your network of PCs so users on the nat (network address translation): NAT
Internet cannot “see” your PCs. This is how your LAN remains private. The Router protects your network by technology translates IP addresses of a
inspecting the first packet coming in through the Internet port before delivery to the final destination on one of local area network to a different IP
the Ethernet ports. The Router inspects Internet port services like the web server, ftp server, or other Internet address for the Internet.
applications, and, if allowed, it will forward the packet to the appropriate PC on the LAN side.
The Use of IP Addresses
IP stands for Internet Protocol. Every device in an IP-based network, including PCs, print servers, and routers,
requires an IP address to identify its location, or address, on the network. This applies to both the Internet and
LAN connections.
There are two ways of assigning IP addresses to your network devices.
A static IP address is a fixed IP address that you assign manually to a PC or other device on the network. Since a static ip address: a fixed address
static IP address remains valid until you disable it, static IP addressing ensures that the device assigned it will assigned to a computer or device that is
always have that same IP address until you change it. Static IP addresses are commonly used with network connected to a network.
devices such as server PCs or print servers.

Broadband Router with 2 Phone Ports

If you use the Router to share your cable or DSL Internet connection, contact your ISP to find out if they have assigned a static IP address to your account. If so, you will need that static IP address when configuring the Router. You can get the information from your ISP.

A dynamic IP address is automatically assigned to a device on the network. These IP addresses are called dynamic because they are only temporarily assigned to the PC or other device. After a certain time period, they expire and may change. If a PC logs onto the network (or the Internet) and its dynamic IP address has expired, the DHCP server will assign it a new dynamic IP address.

A DHCP server can either be a designated PC on the network or another network device, such as the Router. By default, the Router’s Internet Connection Type is Obtain an IP automatically (DHCP).

The PC or network device obtaining an IP address is called the DHCP client. DHCP frees you from having to assign IP addresses manually every time a new user is added to your network.

For DSL users, many ISPs may require you to log on with a user name and password to gain access to the Internet. This is a dedicated, high-speed connection type called Point to Point Protocol over Ethernet (PPPoE). PPPoE is similar to a dial-up connection, but PPPoE does not dial a phone number when establishing a connection. It also will provide the Router with a dynamic IP address to establish a connection to the Internet.

By default, a DHCP server (on the LAN side) is enabled on the Router. If you already have a DHCP server running on your network, you MUST disable one of the two DHCP servers. If you run more than one DHCP server on your network, you will experience network errors, such as conflicting IP addresses. To disable DHCP on the Router, see the Basic Setup section in “Chapter 5: Configuring the Router.”

dynamic ip address: a temporary IP address assigned by a DHCP server.

dhcp (dynamic host configuration protocol): a protocol that lets one device on a local network, known as a DHCP server, assign temporary IP addresses to the other network devices, typically computers.

Chapter 3: Getting to Know the Router

The Back Panel

The Router’s ports and the Reset button are located on the back panel of the Router.

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Figure 3-1: Back Panel
Internet This Internet port connects to your cable or DSL modem.
Phone1 For your primary Internet phone line, the Phone1 port allows you to connect the Router to
your telephone (or fax machine) using an RJ-11 telephone cable (not included).
Phone2 If you have a second Internet phone line, the Phone2 port allows you to connect the Router
to your second telephone (or fax machine) using an RJ-11 telephone cable (not included).
Ethernet 1-4 These four Ethernet ports connect to network devices, such as PCs or more switches.
Reset Button There are two ways to reset the Router's factory defaults. Either press the Reset Button for
five seconds, or restore the defaults from the Router's Web-based Utility.
Power The Power port is where you will connect the power adapter.
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NOTE: The Internet port only accepts a straight-through cable. Do NOT connect a crossover cable to the Internet port.

NOTE: The Voice Factory Default feature of the Router’s Web-based Utility is protected by a password available only from your Internet phone service provider. Contact your provider for more information.

Broadband Router with 2 Phone Ports

The Front Panel

The Router’s LEDs, which inform you about network activities, are located on the front panel.

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Figure 3-2: Front Panel
POWER Blue/Red. The POWER LED lights up blue when the Router is powered on. If the blue LED is
flashing, the Router is booting up or upgrading its firmware. If the LED lights up red, then
disconnect the power, and wait five seconds. Then reconnect the power.
ETHERNET 1-4 Blue. The ETHERNET LED lights up when there is an active connection through the
corresponding port. If the LED is flashing, then there is traffic moving through that port.
PHONE 1-2 Blue. The PHONE LED is solidly lit when a telephone or fax machine has an active or
registered connection to your Internet phone service provider through the corresponding
port (PHONE 1 or 2). It flashes when the phone is being used or is off the hook.
INTERNET Blue. The INTERNET LED lights up when the Router is connected to your cable or DSL
modem. If the LED is flashing, the Router is sending or receiving data over the Internet port.
Proceed to “Chapter 4: Connecting the Router.”

Chapter 4: Connecting the Router

Overview

This chapter includes two sets of instructions. If the Broadband Router with 2 Phone Ports will be the only router in your network, follow the instructions in “Connecting the Router to Your Broadband Modem.” If you already have a router in your network and want to add the Broadband Router with 2 Phone Ports, follow the instructions in “Connecting the Router to Your Existing Router.”

Cheap Phone NOTE: Make sure your telephone is set to its tone setting (not pulse).

Connecting the Router to Your Broadband Modem

  1. Make sure that your devices are powered off, including the Router, PCs, and broadband modem.
  2. Connect your broadband modem’s Ethernet cable to the Router’s Internet port.
  3. Connect one end of an Ethernet network cable to one of the numbered ports on the back of the Figure 4-1: Connect the Modem Router. Connect the other end to an Ethernet port on a network device, e.g., a PC, print server, or switch.
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Repeat this step to connect more PCs or other network devices to the Router.

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Broadband Router with 2 Phone Ports

  1. Power on the broadband modem.
  2. Connect the included power adapter to the Router’s Power port, and then plug the power adapter into an electrical outlet. The Power LED on the front panel will light up as soon as the Router powers on.
  3. Plug a standard telephone into the Router’s Phone1 port.
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Cheap Phone IMPORTANT: Do not connect the Phone port to a telephone wall jack. Make sure you only connect a telephone or fax machine to the Phone port. Otherwise, the Router or the telephone wiring in your home or office may be damaged.

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  1. If you have a second Internet phone or fax line, connect a telephone or fax machine to the Figure 4-4: Connect a Telephone Router’s Phone2 port.
  2. Power on your PC(s).

If you want to mount the Router on a wall, proceed to the following section, “Placement Options.” Otherwise, proceed to “Chapter 5: Configuring the Router.

Connecting the Router to Your Existing Router

Linksys recommends that you replace your existing router with the Broadband Router with 2 Phone Ports. However, if you would like to keep your existing router because it has wireless capability or other features, then you can use the following instructions to connect the Broadband Router with 2 Phone Ports to your existing router, while keeping your wired PCs connected to your existing router. For example, the following connection diagram shows the Broadband Router with 2 Phone Ports connected to your existing router and phone.

Cable/DSL

Cheap Phone NOTE: Do NOT connect any wired PCs to the Broadband Router with 2 Phone Ports.

Broadband Router with 2 Phone Ports

To connect the Broadband Router with 2 Phone Ports to your existing router, follow these instructions:

  1. Connect an Ethernet cable to the Internet port on the back of the Broadband Router with 2 Phone Ports. Then connect the other end to one of the Ethernet network ports on your existing router.
  2. Connect the included power adapter to the Power port of the Broadband Router with 2 Phone Ports, and then plug the power adapter into an electrical outlet. The Power LED on the front Figure 4-6: Connect the Existing Router panel will light up as soon as the Broadband Router with 2 Phone Ports powers on.
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Cheap Phone IMPORTANT: Do not connect the Phone port to a telephone wall jack. Make sure you only connect a telephone or fax machine to the Phone port. Otherwise, the Router or the telephone wiring in your home or office may be damaged.

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  1. Plug a standard telephone into the Phone1 port of the Broadband Router with 2 Phone Ports.
  2. If you have a second Internet phone or fax line, connect a telephone or fax machine to the Phone2 port.
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Proceed to the following section, “Placement Options.Figure 4-8: Connect a Telephone

Placement Options

There are three ways to place the Router. The first way is to place it horizontally on a surface, so it sits on its four rubber feet. The second way is to stand the Router vertically on a surface (this uses an optional stand). The third way is to mount it on a wall. The second and third options are explained in further detail below.

Stand Option

If you have the optional stand, then you can place the Router vertically on a surface.

  1. Line up the center of the Router’s stand with the center of the Router’s labeled edge.
  2. Insert the Router into the stand.

Proceed to “Chapter 5: Configuring the Router.”

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Broadband Router with 2 Phone Ports

Wall-Mount Option

The Router has four wall-mount slots on its bottom panel. The distance between two adjacent slots is 62 mm (2.44 inches).

Before you begin, make sure you have four screws that are size #4—this indicates a diameter 62 mm measurement of 0.112 inches (2.845 mm).

(2.44 inches)

  1. Determine where you want to mount the Router.
  2. Drill four holes into the wall. Make sure adjacent holes are 62 mm (2.44 inches) apart.
  3. Insert a screw into each hole, and leave 5 mm (0.2 inches) of its head exposed.
  4. Maneuver the Router so the wall-mount slots line up with the four screws.
  5. Place the wall-mount slots over the screws and slide the Router down until the screws fit snugly into the wall-mount slots.

Proceed to “Chapter 5: Configuring the Router.”

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Chapter 5: Configuring the Router

Overview

Linksys recommends using the Setup CD-ROM for first-time installation of the Router. If you do not wish to run the Setup Wizard on the Setup CD-ROM, then you can use the Web-based Utility to configure the Router. For advanced users, you may configure the Router’s advanced settings through the Web-based Utility.

This chapter will describe each web page on the Utility and each page’s key functions. The Utility can be accessed via your web browser through use of a computer connected to the Router. For a basic network setup, most users only have to use the following screens of the Utility:

  • Basic Setup. On the Basic Setup screen, enter the Internet connection settings provided by your ISP. If you do not have this information, you can call your ISP to request the settings. Once you have the setup information for your specific type of Internet connection, then you can configure the Router.
  • Management. Click the Administration tab and then the Management tab. The Router’s default user name and password is admin. To secure the Router, change the User Name and Password from their defaults.

There are seven main tabs: Setup, Security, Access Restrictions, Applications & Gaming, Administration, Status, and Voice. Additional tabs will be available after you click one of the main tabs.

Broadband Router with 2 Phone Ports

Setup

  • Basic Setup. Enter the Internet connection and network settings on this screen.
  • DDNS. Enable the Router’s Dynamic Domain Name System (DDNS) feature on this screen.
  • MAC Address Clone. If you need to clone a MAC address onto the Router, use this screen.
  • Advanced Routing. On this screen, you can alter firewall, Network Address Translation (NAT), Dynamic Routing, and Static Routing configurations.

Security

  • Firewall. To enable certain types of web filters, use this screen.
  • VPN Passthrough. To enable or disable IPSec, PPPoE, and/or PPTP Passthrough, use this screen. Access Restrictions
  • Filter. To block specific users from Internet access, you can set up IP address, port, and MAC address filtering.
  • Device Access Control. Use this screen to control remote access of the Router.

Applications & Gaming

  • Port Range Forwarding. Set up public services or other specialized Internet applications on your network.
  • Port Triggering. To set up triggered ranges and forwarded ranges for Internet applications, click this tab.
  • DMZ. Click this tab to allow one local user to be exposed to the Internet for use of special-purpose services.
  • Management. On this screen, alter the Router’s user name, password, and UPnP settings.
  • Log. If you want to view or save activity logs, click this tab.
  • Factory Defaults. If you want to reset the Router to its router factory default settings, then use this screen. If you want to reset the Router to its voice factory default settings, then you will need a password available only from your Internet phone service provider. Contact your provider for more information.
  • Diagnostics. If you want to run a ping or traceroute test, use this screen. Status
  • Router. This screen provides status information about the Router.
  • Local Network. This provides status information about the local network.
  • Voice. This screen provides status information about your Internet phone line(s).

Broadband Router with 2 Phone Ports

Voice

Access to the Voice tab is restricted by your Internet phone service provider. Contact your provider for more information.

How to Access the Web-based Utility

To access the Web-based Utility of the Router, launch Internet Explorer or Netscape Navigator, and enter the Router’s default IP address, 192.168.15.1, in the Address field. Press the Enter key.

The Login screen will appear asking you for your User name and Password. Enter admin in the User Name and Password fields. Then click the Log In button. Click the Cancel button to exit the Login screen.

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Figure 5-1: Router’s IP

Make the necessary changes through the Utility. When you have finished making changes to a screen, click the

Address

Save Settings button to save the changes, or click the Cancel Changes button to undo your changes. Help information is shown on the right-hand side of a screen. For additional help on a tab, click More.

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The Setup Tab - Basic Setup

The Basic Setup screen is the first screen you see when you access the Web-based Utility.

Internet Setup

The Internet Setup section configures the Router for your Internet connection type. This information can be obtained from your ISP.

Internet Connection Type

The Router supports three connection types: Obtain an IP automatically, Static IP, and PPPoE. Each Basic Setup screen and available features will differ depending on what kind of connection type you select.

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By default, the Router’s Internet Connection Type is set to Obtain an IP automatically, and it should be

used only if your ISP supports DHCP or you are connecting through a dynamic IP address.

Broadband Router with 2 Phone Ports

Static IP

If you are required to use a permanent IP address, then select Static IP.

IP Address. This is the IP address that the Router has, when seen from the Internet. Your ISP will provide

you with the IP Address you need to specify here.

Subnet Mask. This is the Router’s Subnet Mask, as seen by external users on the Internet (including your

ISP). Your ISP will provide you with the Subnet Mask.

Gateway. Your ISP will provide you with the Default Gateway Address.

DNS 1-3. Your ISP will provide you with at least one DNS (Domain Name System) Server IP Address.

WINS. The Windows Internet Naming Service (WINS) converts NetBIOS names to IP addresses. If you use a

WINS server, enter that server’s IP address here. Otherwise, leave this field blank.

PPPoE

Some DSL-based ISPs use PPPoE (Point-to-Point Protocol over Ethernet) to establish Internet connections for end-users. If you use a DSL line, check with your ISP to see if they use PPPoE. If they do, you will have to enable it.

User Name and Password. Enter the User Name and Password provided by your ISP.

Connect on Demand and Keep Alive. You can configure the Router to cut the Internet connection after it has been inactive for a specific period of time (Idle Timeout). 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. If you wish to activate Connect on Demand, click the radio

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static ip address: a fixed address

assigned to a computer or device

connected to a network.

subnet mask: an address code that determines the size of the network.

default gateway: a device that forwards Internet traffic from your local area network.

pppoe: a type of broadband connection that provides authentication (username and password) in addition to data transport.

button. If you want your Internet connection to remain on at all times, enter 0 in the Idle Timeout field. Otherwise, enter the number of minutes you want to have elapsed before your Internet access disconnects.

Keep Alive and Redial Period. This option keeps your Internet access connected indefinitely, even when it

sits idle. If you select this option, the Router will periodically check your Internet connection. If the

connection is down, then the Router will automatically re-establish the connection. To use this option, click

the radio button next to Keep Alive. The default Redial Period is 60 seconds.

When you are finished, click the Save Settings button. Then click the Status tab, and click the Connect

button to start the connection.

Optional Settings

Some of these settings may be required by your ISP. Verify with your ISP before making any changes.

Host Name and Domain Name. These fields allow you to supply a host and domain name for the Router. Some 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. The MTU (Maximum Transmission Unit) setting specifies the largest packet size permitted for network transmission. Select Auto to have the Router automatically select the MTU value, or select Manual and enter the value desired. It is recommended that you leave this value in the 1200 to 1500 range. For two Internet connection types, Obtain an IP automatically and Static IP, the MTU’s default value is 1500. For PPPoE, the MTU’s default value is 1492.

Network Setup

The Network Setup section allows you to change the Router’s local network settings.

Broadband Router with 2 Phone Ports

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Cheap Phone NOTE: For DSL users, if you need to enable PPPoE support, remember to remove any PPPoE applications that are installed on your PCs.

packet: a unit of data sent over a network.

Broadband Router with 2 Phone Ports

Router IP

The values for the Router’s Local IP Address and Subnet Mask are shown here. In most cases, keeping the default values will work.

Local IP Address. The default value is 192.168.15.1.

Subnet Mask. The default value is 255.255.255.0.

Network Address Server Settings (DHCP)

These 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. Unless you already have one, it is highly recommended that you leave the Router enabled as a DHCP server.

Local DHCP Server. DHCP is enabled by factory default. If you already have a DHCP server on your network, set the Router’s DHCP option to Disable. If you disable DHCP, remember to assign a static IP address to the Router.

Start IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. Because the default IP address for the Router is 192.168.15.1, the Start IP Address must be 192.168.15. 101 or greater, but smaller than 192.168.15.254. The default Start IP Address is 192.168.15.100.

Number of Address (Optional). Enter the maximum number of PCs 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. The range of DHCP addresses is displayed here.

Broadband Router with 2 Phone Ports
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” dynamic ip address: a temporary IP
this dynamic IP address. After the dynamic IP address has expired, the user will be automatically assigned a new address assigned by a DHCP server.
dynamic IP address. The default is 0 minutes, which means one day.
WINS. The Windows Internet Naming Service (WINS) converts NetBIOS names to IP addresses. If you use a WINS
server, enter that server’s IP address here. Otherwise, leave this field blank.
When you have finished making changes to this screen, click the Save Settings button to save the changes, or
click the Cancel Changes button to undo your changes.
NOTE: To test your settings, connect to the Internet now.
The Setup Tab - DDNS
The Router offers a Dynamic Domain Name System (DDNS) feature. DDNS lets you assign a fixed host and domain name to a dynamic Internet IP address. It is useful when you are hosting your own website, FTP server, or other server behind the Router. ddns: allows the hosting of a website, FTP server, or e-mail server with a fixed domain name (e.g., www.xyz.com) and a
Before you can use this feature, you need to sign up for DDNS service at one of two DDNS service providers, dynamic IP address.
DynDNS.org or TZO.com. If you do not want to use this feature, keep the default setting, Disable.
DDNS
DDNS Service. If you use DynDNS.org, then select DynDNS.org. If you use TZO, then select TZO.com. The
features available on the DDNS screen will vary, depending on which DDNS service provider you use.

Broadband Router with 2 Phone Ports

DynDNS.org

User Name, Password, and Host Name. Enter the User Name, Password, and Host Name of the account you set up with DynDNS.org.

Internet IP Address. The Router’s current Internet IP Address is displayed here. Because it is dynamic, this will change.

Status. The status of the DDNS service connection is displayed here.

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TZO.com Figure 5-6: Setup Tab - DDNS (DynDNS.org)

E-mail Address, Password, and Domain Name. Enter the Email Address, Password, and Domain Name of the service you set up with TZO.

Internet IP Address. The Router’s current Internet IP Address is displayed here. Because it is dynamic, this will change.

Status. The status of the DDNS service connection is displayed here.

When you have finished making changes to this screen, click the Update button to save the changes, or click the Cancel Changes button to undo your changes.

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The Setup Tab - MAC Address Clone

A MAC address is a 12-digit code assigned to a unique piece of hardware for identification, like a social security number. Some ISPs will require you to register a MAC address in order to access the Internet. If you do not wish to re-register the MAC address with your ISP, you may assign the MAC address you have currently registered with your ISP to the Router with the MAC Address Clone feature.

MAC Clone

MAC Clone Service. To use MAC address cloning, select Enable. Figure 5-8: Setup Tab -

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MAC Address. Enter the MAC Address registered with your ISP. Then click the Save Settings button.

MAC Address Clone

Clone. If you want to clone the MAC address of the PC you are currently using to configure the Router, then click the Clone button. The Router will automatically detect your PC’s MAC address, so you do NOT have to call your mac address: the unique address that a ISP to change the registered MAC address to the Router’s MAC address. It is recommended that the PC manufacturer assigns to each networking registered with the ISP is used to open the MAC Address Clone screen. device.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

Broadband Router with 2 Phone Ports

The Setup Tab - Advanced Routing

The Advanced Routing screen allows you to configure the firewall, Network Address Translation (NAT), dynamic routing, and static routing settings.

Advanced Routing

Firewall & NAT. The Stateful Packet Inspection (SPI) firewall reviews data packets entering your network. NAT is a security feature that enables the Router to translate IP addresses of your local area network to a different IP address for the Internet. These features are enabled by default. To disable the firewall and NAT, click the Disable radio button. (When NAT is disabled, the DHCP server feature is also disabled.)

Dynamic Routing. This feature enables the Router to automatically adjust to physical changes in the network’s layout and exchange routing tables with the other router(s). The Router determines the network packets’ route based on the fewest number of hops between the source and the destination. To enable Dynamic Routing, click the Enable radio button. To disable this feature, click the Disable radio button.

Transmit RIP Version. To use dynamic routing for transmission of network data, select the protocol you want, RIP1 v1, RIP1 v1 Compatible, or RIP v2.

Static Routing. Use this feature to set up a static router between the Router and another network. (A static route is a pre-determined pathway that network information must travel to reach a specific host or network.) To create a static route, alter the following settings:

Select Entry. Select the number of the static route from the drop-down menu. The Router supports up to 20 static route entries.

Destination LAN IP. The Destination LAN IP Address is the address of the remote network or host to which you want to assign a static route. Enter the IP address of the host for which you wish to create a static route.

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Subnet Mask. The Subnet Mask determines which portion of a Destination IP address is the network

portion, and which portion is the host portion.

Gateway. This is the IP address of the gateway device that allows for contact between the Router and the

remote network or host.

Hop Count. This determines the maximum number of steps between network nodes that data packets will

travel. A node is any device on the network, such as PCs, print servers, routers, etc.

Interface. Select Local or Internet, depending on the location of the static route’s final destination.

Delete Entry. If you need to delete a route, select its number from the drop-down menu, and click the Delete Entry button.

Show Routing Table. Click the Show Routing Table button to open a screen displaying how data is routed through your local network. For each route, the Destination LAN IP address, Default Gateway, Subnet Mask, Flags, Metric, Ref (Reference), User, and Interface are displayed. Click the Refresh button to update the information.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

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Broadband Router with 2 Phone Ports

The Security Tab - Firewall

When you click the Security tab, you will see the Firewall screen. You can use this screen to enable a variety of web filters, which will enhance the firewall protecting your network.

Web Filters

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Filter Proxy. Use of WAN proxy servers may compromise the Gateway's security. Denying Filter Proxy will disable access to any WAN proxy servers. To enable proxy filtering, click the checkbox.

Filter Java Applets. Java is a programming language for websites. If you deny Java Applets, you run the risk of not having access to Internet sites created using this programming language. To enable Java Applet filtering, click the checkbox.

Filter Cookies. A cookie is data stored on your computer and used by Internet sites when you interact with them. To enable cookie filtering, click the checkbox.

Filter ActiveX. ActiveX is a programming language for websites. If you deny ActiveX, you run the risk of not having access to Internet sites created using this programming language. To enable ActiveX filtering, click the checkbox.

When you have finished making changes on this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

The Security Tab - VPN Passthrough

The VPN Passthrough screen allows you to allow VPN tunnels using IPSec, PPPoE, or PPTP protocols to pass through the Router.

VPN Passthrough IPSec Passthrough. IPSec (Internet Protocol Security) is a suite of protocols used to implement secure Figure 5-12: Security Tab - VPN exchange of packets at the IP layer. To allow IPSec Passthrough, click the Enabled button. To disable IPSec Passthrough Passthrough, click the Disabled button.

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PPPoE Passthrough. PPPoE (Point-to-Point over Ethernet) Passthrough allows your PC(s) to use the PPPoE client software provided by your ISP. Some ISPs may request that you use this feature on the Router. To allow PPPoE Passthrough, click the Enabled button. To disable PPPoE Passthrough, click the Disabled button.

PPTP Pass Through. PPTP (Point-to-Point Tunneling Protocol) Passthrough allows the Point-to-Point (PPP) to be tunneled through an IP network. To allow PPTP Passthrough, click the Enabled button. To disable PPTP Passthrough, click the Disabled button.

When you have finished making changes on this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

Broadband Router with 2 Phone Ports

The Access Restrictions Tab - Filter

Filters can block specific internal users from accessing the Internet, anonymous Internet requests, and/or multicasting.

Filter IP Address Range

You can create up to five different IP Address filters. To set up a filter, enter the IP address you wish to filter in the field provided. Users who have filtered IP addresses will not be able to access the Internet at all.

Filter Port Range

You can create up to five different Port Range filters. To filter users by network port number, select the protocol you want to filter, TCP, UDP, or Both, from the Protocol drop-down menu. Enter the port numbers you want to filter in the Start and End fields. Users connected to the Router will no longer be able to access any port number listed there.

Filter MAC Address

This feature blocks computers with specific MAC addresses from going out to the Internet. For information on obtaining a MAC address, go to “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter.” To set the MAC filter, click the Edit MAC Filter Setting button.

Edit MAC Filter Setting. Click the Edit MAC Filter Setting button. Select the range of MAC address entries in the drop-down box. In each mac field, enter the MAC address you want to filter. Click the Apply button before closing the window. To cancel changes, click the Undo button.

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Block WAN Requests

Use these features to enhance your network’s security and filter multicasting.

Block Anonymous Internet Requests. This keeps your network from being “pinged” or detected and reinforces your network security by hiding your network ports, so it is more difficult for intruders to work their way into your network. Select Enabled to block anonymous Internet requests, or Disabled to allow anonymous Internet requests.

Filter Multicast. Multicasting allows for multiple transmissions to specific recipients at the same time. If multicasting is permitted, then the Router will allow IP multicast packets to be forwarded to the appropriate computers. Select Enabled to filter multicasting, or Disabled to disable this feature.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

Broadband Router with 2 Phone Ports

The Access Restrictions Tab - Device Access Control

Use this screen to control local and remote access to the Router’s management ports via different services. Access Control Enable Access Control. If you want to control access to the Router’s management ports via the services listed below, click the checkbox. For each service, make sure the appropriate checkbox is checked if you want to allow local or remote access. Make sure the appropriate checkbox is not checked if you want to block local or remote access. If the Access Control feature is disabled, then access is permitted within the local network but blocked for the Internet. Service Name. You can control access for two services, Web and Secure Shell (SSH). WAN. If you want to block WAN (Internet) access for a service, make sure the appropriate checkbox is unchecked. If you want to allow access, then make sure the appropriate checkbox is checked. LAN. If you want to block local access for a service, make sure the appropriate checkbox is unchecked. If you want to allow access, then make sure the appropriate checkbox is checked. IP Access List. Specify the IP addresses that are allowed to remotely access the Router. If you want to delete an IP address, select it and then click the Delete checkbox. New IP. To add an IP address, enter it in the field provided, and then click the Add checkbox. When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

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Cheap Phone NOTE: When a checkbox for a service is checked, access is enabled. When a

checkbox is unchecked, access is denied.

The Applications & Gaming Tab - Port Range Forwarding

When you click the Applications & Gaming tab, you will see the Port Range Forwarding screen. Port Range Forwarding sets up public services on your network, such as web servers, ftp servers, e-mail servers, or other specialized Internet applications. (Specialized Internet applications are any applications that use Internet access to perform functions such as videoconferencing or online gaming. Some Internet applications may not require any forwarding.) When users send this type of request to your network via the Internet, the Router will forward those requests to the appropriate PC.

Before using forwarding, you should assign a static IP address to the designated PC.

If you need to forward all ports to one PC, click the DMZ tab.

Port Range Forwarding

Port Range

To add a server using Port Range Forwarding, complete the following fields:

Application. Enter the name of the application.

Start and End. Enter the number or range of external port(s) used by the server or Internet application. Check with the Internet application software documentation for more information.

Protocol. Select the protocol TCP or UDP, or select Both.

IP Address. Enter the IP address of the server that you want the Internet users to be able to access. To find the IP address, go to “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter.”

Chapter 5: Configuring the Router The Applications & Gaming Tab - Port Range Forwarding

Broadband Router with 2 Phone Ports

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tcp: a network protocol for transmitting data that requires acknowledgement from the recipient of data sent.

udp: a network protocol for transmitting

data that does not require

acknowledgement from the recipient of

the data that is sent.

ip (internet protocol): a protocol used to

send data over a network.

ip address: the address used to identify a computer or device on a network.

33 Broadband Router with 2 Phone Ports

Enable. Check the Enable box to enable the services you have defined. Port Range Forwarding will not function if the Enabled button is left unchecked. This is disabled (unchecked) by default.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

The Applications & Gaming Tab - Port Triggering

The Port Triggering screen allows the Router to watch outgoing data for specific port numbers. The IP address of the computer that sends the matching data is remembered by the Router, so that when the requested data returns through the Router, the data is pulled back to the proper computer by way of IP address and port mapping rules.

Port Triggering

Application. Enter the application name of the trigger.

Triggered Range

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Start Port. Enter the starting port number of the Triggered Range.

End Port. Enter the ending port number of the Triggered Range.

Forwarded Range

For each application, list the forwarded port number range. Check with the Internet application documentation for the port number(s) needed. Start Port. Enter the starting port number of the Forwarded Range. End Port. Enter the ending port number of the Forwarded Range. When you have finished making changes to this screen, click the Save Settings button to save the changes, or

click the Cancel Changes button to undo your changes.

Broadband Router with 2 Phone Ports

The Applications & Gaming Tab - DMZ

The DMZ screen allows one local user to be exposed to the Internet for use of a special-purpose service such as Internet gaming and videoconferencing. DMZ hosting forwards all the ports at the same time to one PC. The Port Range Forwarding is more secure because it only opens the ports you want to have opened, while DMZ hosting opens all the ports of one computer, exposing the computer to the Internet.

Any PC whose port is being forwarded must have its DHCP client function disabled and should have a new static IP address assigned to it because its IP address may change when using the DHCP function.

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Figure 5-18: Applications & Gaming Tab - DMZ


DMZ
. To use this feature, select Enabled. To disable DMZ hosting, select Disabled.

DMZ Host IP Address. To expose one PC, enter the computer’s IP address. To get the IP address of a computer, refer to “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter.” Deactivate DMZ by entering a 0 in the field.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

The Applications & Gaming Tab

 

The Administration Tab - Management

When you click the Administration tab, you will see the Management screen. This screen allows you to change the Router’s access settings as well as configure the UPnP (Universal Plug and Play) feature.

Router Password

Local Router Access

To ensure the Router’s security, you will be asked for your user name and password when you access the Router’s Web-based Utility. The default user name and password is admin.

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User Name. It is recommended that you change the default user name to one of your choice. Figure 5-21: Administration Tab - Management Router Password. It is recommended that you change the default password to one of your choice.

Re-enter to confirm. Re-enter the Router’s new Password to confirm it.

Idle Timeout. When you use the Router’s Web-based Utility, your session can remain idle for a specified length of time. Enter the length of time you want to allow. The default is 10 minutes.

UPnP

UPnP. UPnP allows Windows Me or XP to automatically configure the Router for various Internet applications, such as gaming and videoconferencing. To enable UPnP, click the Enabled radio button. To disable this feature, click the Disabled radio button.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

Broadband Router with 2 Phone Ports

The Administration Tab - Log

When you click the Administration tab, you will see the Log screen. You can select which PC will receive the specified type of system logs for your Internet connection.

Cheap Phone NOTE: The PC that receives these logs must be running a SYSLOG application. Linksys offers free software that can view system logs. You can download Logviewer software at www.linksys.com.

Log

Log Level. There are a variety of log levels available, from most urgent to least urgent. Select the appropriate level: Panic, Alert, Critical, Error, Warning, Notice, Info, or Debug, from the drop-down menu.

Add an IP Address. In this field, enter the fixed IP address of the PC that will receive the logs. Then click the Add button. The Router will now send updated logs to that PC.

Select a logging destination. If you add an IP address, then that IP address automatically becomes the logging destination. If you want to delete a destination, then select it and click the Delete button.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

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The Administration Tab - Factory Defaults

The Factory Defaults screen allows you to reset the Router to its router factory defaults. If you want to reset the Router to its voice factory defaults, then you need a password available only from your Internet phone service provider. Contact your provider for more information.

Factory Defaults

Restore Router Factory Defaults. If you wish to reset the Router to its router factory defaults, click the Yes radio button and then the Save Settings button. Then follow the on-screen instructions.

Cheap Phone NOTE: Any custom settings you have saved will be lost when the default settings are restored, so before you restore the router factory defaults, write down any settings you may need later. Restore Voice Factory Defaults. If you click the Yes radio button and then the Save Settings button, you will see a screen asking for a password. Enter the password provided by your Internet phone service provider, and follow the on-screen instructions.

When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes.

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Broadband Router with 2 Phone Ports

The Administration Tab - Diagnostics

The diagnostic tests allow you to check the connections of your network components.

Ping Test

Ping Parameters. The Ping test will check the status of a connection. Click the Ping button to open the Ping Test screen. Enter the IP address or domain name of the PC whose connection you wish to test. Enter the size of the test packet. Then select the number of times you want the ping to occur. Click the Ping button. The Ping Test Figure 5-24: Administration Tab screen will then display the test results. Click the Close button to return to the Diagnostics screen. Diagnostics Traceroute Test

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Traceroute Parameters. To test the performance of a connect, click the Traceroute button. Enter the IP address or domain name of the PC whose connection you wish to test. Click the Traceroute button. The Traceroute Test screen will then display the test results. Click the Close button to return to the Diagnostics screen.

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The Status Tab - Router

The Router screen displays information about the Router and its current settings. The on-screen information will vary depending on the Internet Connection Type selected on the Setup screen. Information Firmware Version. This shows the version number of the installed firmware.

Current Time. The current time and date are displayed here when the Router is connected to the Internet. MAC Address. The MAC Address of the Router’s Internet interface is displayed here. (When you sign up for your Internet phone service account, you will need to provide the MAC address of the Router.) Status Figure 5-27: Status Tab - Router Login Type. This indicates the type of Internet connection you are using. Login Status. The status is displayed only for the dial-up style connection, PPPoE. There is a Connect button to click if there is no Internet connection and you want to re-connect. Internet IP Address. The Router’s Internet IP Address is displayed here. Subnet Mask and Default Gateway. The Router’s Subnet Mask and Default Gateway address are displayed here for DHCP and static IP connections. DNS 1-3. Shown here are the DNS (Domain Name System) IP addresses currently used by the Router. MTU. Shown here is the MTU value currently used by the Router.

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Broadband Router with 2 Phone Ports

DHCP Release. Available for a DHCP connection, click the DHCP Release button to release the current IP address of the device connected to the Router’s Internet port.

DHCP Renew. Available for a DHCP connection, click the DHCP Renew button to replace the current IP address—of the device connected to the Router’s Internet port—with a new IP address.

Click the Refresh button to update the on-screen information.

The Status Tab - Local Network

The Local Network screen displays information about the local network. Local Network MAC Address. The MAC Address of the Router’s LAN (local area network) interface is displayed here. IP Address. The Router’s local IP Address is shown here. Figure 5-28: Status Tab - Local Network Subnet Mask. The Router’s Subnet Mask is shown here. DHCP Server. The status of the DHCP server is displayed here. DHCP Clients Table. Click the DHCP Clients Table button to view a list of PCs that have been assigned IP addresses by the Router. The DHCP Active IP Table screen lists the DHCP Server IP Address, Client Host Names, IP Addresses, MAC Addresses, and Lease Times. Click the Refresh button to update the information. Click the Close button to close this screen. Figure 5-29: DHCP Active IP Table

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Click the Refresh button to update the on-screen information.

Broadband Router with 2 Phone Ports

The Status Tab - Voice

The Voice screen displays information about your Internet phone line(s). Information

Provisioning Status. This status information indicates whether the Router has been configured by your Internet phone service provider. Line1 Status

Registration Status. The phone number and status of this Internet phone line are displayed here. If it is not registered, then you should register it. If registration has failed, then refer to “Appendix A: Troubleshooting.”

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Call1 Status. The status of the active phone call is shown here.

Call2 Status. If you are using call waiting, the status of the incoming phone call is shown here. Line2 Status Registration Status. The phone number and status of this Internet phone line are displayed here. If it is not

registered, then you should register it. If registration has failed, then refer to “Appendix A: Troubleshooting.Call1 Status. The status of the active phone call is shown here. Call2 Status. If you are using call waiting, the status of the incoming phone call is shown here. Click the Refresh button to update the on-screen information.

The Voice Tab

Access to the Voice tab is restricted by your Internet phone service provider. Contact your provider for more information.

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Broadband Router with 2 Phone Ports

Appendix A: Troubleshooting

This appendix provides solutions to problems that may occur during the installation and operation of the Router. Read the description below to solve your problems. If you can't find an answer here, check the your Internet phone service provider’s website or the Linksys website at www.linksys.com.

Common Problems and Solutions

1. I don’t hear a dial tone, and the PHONE1 (or PHONE2) LED is not lit.

Go through this checklist until your problem is solved:

  • Make sure the telephone is plugged into the appropriate port, Phone 1 or Phone 2.
  • Disconnect and re-connect the RJ-11 telephone cable between the Router and telephone.
  • Make sure your telephone is set to its tone setting (not pulse).
  • Make sure your network has an active Internet connection. Try to access the Internet, and check to see if the Router’s Internet LED is lit. If you do not have a connection, power off your network devices, including the Router and cable/DSL modem. Wait 30 seconds, and power on the cable/DSL modem first. Then power on the Router and other network devices.
  • Verify your account information and confirm that the phone line is registered with your Internet phone service provider.

2. I’m trying to access the Router’s Web-based Utility, but I do not see the login screen. Instead, I see a screen saying, “404 Forbidden.”

If you are using Windows Explorer, perform the following steps until you see the Web-based Utility’s login

screen (Netscape Navigator will require similar steps):

A. Click File. Make sure Work Offline is NOT checked.

Broadband Router with 2 Phone Ports

B. Press CTRL + F5. This is a hard refresh, which will force Windows Explorer to load new webpages, not cached ones.

C. Click Tools. Click Internet Options. Click the Security tab. Click the Default level button. Make sure the security level is Medium or lower. Then click the OK button.

3. I need to set a static IP address on a PC.

The Router, by default, assigns an IP address range of 192.168.15.100 to 192.168.15.150 using the DHCP server on the Router. To set a static IP address, you can only use the ranges 192.168.15.2 to 192.168.15.99 and 192.168.15.151 to 192.168.15.254. Each PC or network device that uses TCP/IP must have a unique address to identify itself in a network. If the IP address is not unique to a network, Windows will generate an IP conflict error message. You can assign a static IP address to a PC by performing the following steps:

For Windows 98 and Millennium:

A. Click Start, Setting, and Control Panel. Double-click Network.

B. In The following network components are installed box, select the TCP/IP-> associated with your Ethernet adapter. If you only have one Ethernet adapter installed, you will only see one TCP/IP line with no association to an Ethernet adapter. Highlight it and click the Properties button.

C. In the TCP/IP properties window, select the IP address tab, and select Specify an IP address. Enter a unique IP address that is not used by any other computer on the network connected to the Router. You can only use an IP address in the ranges 192.168.15.2 to 192.168.15.99 and 192.168.15.151 to 192.168.15.254. Make sure that each IP address is unique for each PC or network device.

D. Click the Gateway tab, and in the New Gateway prompt, enter 192.168.15.1, which is the default IP address of the Router. Click the Add button to accept the entry.

E. Click the DNS tab, and make sure the DNS Enabled option is selected. Enter the Host and Domain names (e.g., John for Host and home for Domain). Enter the DNS entry provided by your ISP. If your ISP has not provided the DNS IP address, contact your ISP to get that information or go to its website for the information.

F. Click the OK button in the TCP/IP properties window, and click Close or the OK button for the Network window.

G. Restart the computer when asked.

For Windows 2000:

A. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.

B. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.

C. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP), and click the Properties button. Select Use the following IP address option.

D. Enter a unique IP address that is not used by any other computer on the network connected to the Router. You can only use an IP address in the ranges 192.168.15.2 to 192.168.15.99 and 192.168.15.151 to 192.168.15.254.

E. Enter the Subnet Mask, 255.255.255.0.

F. Enter the Default Gateway, 192.168.15.1 (Router’s default IP address).

G. Toward the bottom of the window, select Use the following DNS server addresses, and enter the Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its website to find the information.

H. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the Local Area Connection Properties window.

I. Restart the computer if asked.

For Windows XP: The following instructions assume you are running Windows XP with the default interface. If you are using the Classic interface (where the icons and menus look like previous Windows versions), please follow the instructions for Windows 2000.

Broadband Router with 2 Phone Ports

A. Click Start and Control Panel.

B. Click the Network and Internet Connections icon and then the Network Connections icon.

C. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.

D. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP). Click the Properties button.

E. Enter a unique IP address that is not used by any other computer on the network connected to the Router. You can only use an IP address in the ranges 192.168.15.2 to 192.168.15.99 and 192.168.15.151 to 192.168.15.254.

F. Enter the Subnet Mask, 255.255.255.0.

G. Enter the Default Gateway, 192.168.15.1 (Router’s default IP address).

H. Toward the bottom of the window, select Use the following DNS server addresses, and enter the Preferred DNS server and Alternative DNS server (provided by your ISP). Contact your ISP or go on its website to find the information.

I. Click the OK button in the Internet Protocol (TCP/IP) Properties window. Click the OK button in the Local Area Connection Properties window.

4. I want to test my Internet connection.

A. Check your TCP/IP settings.

For Windows 98 and Millennium: Refer to Windows Help for details. Make sure Obtain IP address automatically is selected in the settings.

For Windows 2000:

1. Click Start, Settings, and Control Panel. Double-click Network and Dial-Up Connections.

2. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.

3. In the Components checked are used by this connection box, highlight Internet Protocol (TCP/IP), and click the Properties button. Make sure that Obtain an IP address automatically and Obtain DNS server address automatically are selected.

  1. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the Local Area Connection Properties window.
  2. Restart the computer if asked.
  3. Click the OK button in the Internet Protocol (TCP/IP) Properties window, and click the OK button in the Local Area Connection Properties window.
  4. Restart the computer if asked.

For Windows XP: The following instructions assume you are running Windows XP with the default interface. If you are using the Classic interface (where the icons and menus look like previous Windows versions), please follow the instructions for Windows 2000.

  1. Click Start and Control Panel.
  2. Click the Network and Internet Connections icon and then the Network Connections icon.

3. Right-click the Local Area Connection that is associated with the Ethernet adapter you are using, and select the Properties option.

4. In the This connection uses the following items box, highlight Internet Protocol (TCP/IP), and click the Properties button. Make sure that Obtain an IP address automatically and Obtain DNS server address automatically are selected.

B. Open a command prompt.

For Windows 98 and Millennium, click Start and Run. In the Open field, type command. Press the Enter key or click the OK button.

Broadband Router with 2 Phone Ports

For Windows 2000 and XP, click Start and Run. In the Open field, type cmd. Press the Enter key or click the OK button.

C. In the command prompt, type ping 192.168.15.1 and press the Enter key.

  • If you get a reply, the computer is communicating with the Router.
  • If you do NOT get a reply, check the cable, and make sure Obtain an IP address automatically is selected in the TCP/IP settings for your Ethernet adapter.

D. In the command prompt, type ping followed by your Internet IP address and press the Enter key. The Internet IP Address can be found in the web interface of the Router. For example, if your Internet IP address is 1.2.3.4, you would enter ping 1.2.3.4 and press the Enter key.

  • If you get a reply, the computer is connected to the Router.
  • If you do NOT get a reply, try the ping command from a different computer to verify that your original computer is not the cause of the problem.

E. In the command prompt, type ping www.linksys.com and press the Enter key.

  • If you get a reply, the computer is connected to the Internet. If you cannot open a webpage, try the ping command from a different computer to verify that your original computer is not the cause of the problem.
  • If you do NOT get a reply, there may be a problem with the connection. Try the ping command from a different computer to verify that your original computer is not the cause of the problem.

5. I am not getting an IP address on the Internet with my Internet connection.

A. Refer to “Problem #4, I want to test my Internet connection” to verify that you have connectivity.

B. If you need to register the MAC address of your Ethernet adapter with your ISP, please see “Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter.” If you need to clone the MAC address of your Ethernet adapter onto the Router, see the MAC Address Clone section of “Chapter 5: Configuring the Router” for details.

C. Make sure you are using the right Internet settings. Contact your ISP to see if your Internet connection type is DHCP, Static IP Address, or PPPoE (commonly used by DSL consumers). Please refer to the Basic Setup section of “Chapter 5: Configuring the Router” for details on Internet Connection Type settings.

D. Make sure you use the right cable. Check to see if the Internet LED is solidly lit.

E. Make sure the cable connecting from your cable or DSL modem is connected to the Router’s Internet port. Verify that the Status page of the Router’s Web-based Utility shows a valid IP address from your ISP.

F. Turn off the computer, Router, and cable/DSL modem. Wait 30 seconds, and then turn on the Router, cable/DSL modem, and computer. Check the Status tab of the Router’s Web-based Utility to see if you get an IP address.

6. I am not able to access the Router’s Web-based Utility Setup page.

A. Refer to “Problem #4, I want to test my Internet connection” to verify that your computer is properly connected to the Router.

B. Refer to “Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter” to verify that your computer has an IP Address, Subnet Mask, Gateway, and DNS.

C. Set a static IP address on your system; refer to “Problem #3: I need to set a static IP address on a PC.”

D. Refer to “Problem #12: I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window.”

7. I can’t get my Virtual Private Network (VPN) to work through the Router.

Access the Router’s web interface by going to http://192.168.15.1 or the IP address of the Router, and go to the Security => VPN Passthrough tab. Make sure you have IPsec passthrough and/or PPTP passthrough enabled.

VPNs that use IPSec with the ESP (Encapsulation Security Payload known as protocol 50) authentication will work fine. At least one IPSec session will work through the Router; however, simultaneous IPSec sessions may be possible, depending on the specifics of your VPNs.

Broadband Router with 2 Phone Ports

VPNs that use IPSec and AH (Authentication Header known as protocol 51) are incompatible with the Router. AH has limitations due to occasional incompatibility with the NAT standard.

Change the IP address for the Router to another subnet to avoid a conflict between the VPN IP address and your local IP address. For example, if your VPN server assigns an IP address 192.168.15.X (X is a number from 1 to 254) and your local LAN IP address is 192.168.15.X (X is the same number used in the VPN IP address), the Router will have difficulties routing information to the right location. If you change the Router’s IP address to 192.168.2.1, that should solve the problem. Change the Router’s IP address through the Basic Setup tab of the Web-based Utility. If you assigned a static IP address to any computer or network device on the network, you need to change its IP address accordingly to 192.168.2.Y (Y being any number from 1 to 254). Note that each IP address must be unique within the network.

Your VPN may require port 500/UDP packets to be passed to the computer that is connecting to the IPSec server. Refer to “Problem #9, I need to set up online game hosting or use other Internet applications” for details. Check the Linksys website at www.linksys.com for more information.

8. I need to set up a server behind my Router.

To use a server like a web, ftp, or mail server, you need to know the respective port numbers they are using. For example, port 80 (HTTP) is used for web; port 21 (FTP) is used for FTP, and port 25 (SMTP outgoing) and port 110 (POP3 incoming) are used for the mail server. You can get more information by viewing the documentation provided with the server you installed. Follow these steps to set up port forwarding through the Router’s Web-based Utility. We will be setting up web, ftp, and mail servers.

A. Access the Router’s Web-based Utility by going to http://192.168.15.1 or the IP address of the Router. Go to the Applications & Gaming => Port Range Forwarding tab.

B. Enter any name you want to use for the Application.

C. Enter the port range of the service you are using. For example, if you have a web server, you would enter the range 80 to 80.

D. Select the protocol you will be using, TCP or UDP, or select Both.

E. Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server’s Ethernet adapter IP address is 192.168.15.100, you would enter 100 in the field provided. Check “Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.

F. Check the Enabled option for the port services you want to use. Consider the examples below:

Application Start and End Protocol IP Address Enabled
Web server 80 to 80 Both 192.168.15.100 X
FTP server 21 to 21 TCP 192.168.15.101 X
SMTP (outgoing) 25 to 25 Both 192.168.15.102 X
POP3 (incoming) 110 to 110 Both 192.168.15.102 X

When you have completed the configuration, click the Save Settings button.

9. I need to set up online game hosting or use other Internet applications.

If you want to play online games or use Internet applications, most will work without doing any port forwarding or DMZ hosting. There may be cases when you want to host an online game or Internet application. This would require you to set up the Router to deliver incoming packets or data to a specific computer. This also applies to the Internet applications you are using. The best way to get the information on what port services to use is to go to the website of the online game or application you want to use. Follow these steps to set up online game hosting or use a certain Internet application: Broadband Router with 2 Phone Ports

A. Access the Router’s Web-based Utility by going to http://192.168.15.1 or the IP address of the Router. Go to the Applications & Gaming => Port Range Forwarding tab.

B. Enter any name you want to use for the Application.

C. Enter the port range of the service you are using. For example, if you have a web server, you would enter the range 80 to 80.

D. Select the protocol you will be using, TCP or UDP, or select Both.

E. Enter the IP address of the PC or network device that you want the port server to go to. For example, if the web server’s Ethernet adapter IP address is 192.168.15.100, you would enter 100 in the field provided. Check “Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.

F. Check the Enabled option for the port services you want to use. Consider the examples below: application requires too many ports or when you are not sure which port services to use. Make sure you disable all the forwarding entries if you want to successfully use DMZ hosting, since forwarding has priority over DMZ hosting. (In other words, data that enters the Router will be checked first by the forwarding settings. If the port number that the data enters from does not have port forwarding, then the Router will send the data to whichever PC or network device you set for DMZ hosting.) Follow these steps to set DMZ hosting:

Application Start and End Protocol IP Address Enabled
UT 7777 to 27900 Both 192.168.15.100 X
Halflife 27015 to 27015 Both 192.168.15.105 X
PC Anywhere 5631 to 5631 UDP 192.168.15.102 X
VPN IPSEC 500 to 500 UDP 192.168.15.100 X
When you have completed the configuration, click the Save Settings button.
10. I can’t get the Internet game, server, or application to work.
If you are having difficulties getting any Internet game, server, or application to function properly, consider
exposing one PC to the Internet using DeMilitarized Zone (DMZ) hosting. This option is available when an
58 Appendix A: Troubleshooting
Common Problems and Solutions

A. Access the Router’s Web-based Utility by going to http://192.168.15.1 or the IP address of the Router. Go to the Applications & Gaming => Port Range Forwarding tab.

B. Disable or remove the entries you have entered for forwarding. Keep this information in case you want to use it at a later time.

C. Click the DMZ tab.

D. Enter the Ethernet adapter’s IP address of the computer you want exposed to the Internet. This will bypass the NAT security for that computer. Please refer to “Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address.

Once completed with the configuration, click the Save Settings button.

11. I forgot my password, or the password prompt always appears when saving settings to the Router.

Reset the Router to factory default by pressing the Reset button for 30 seconds and then releasing it. If you are still getting prompted for a password when saving settings, then perform the following steps:

A. Access the Router’s web interface by going to http://192.168.15.1 or the IP address of the Router. Enter the default password admin, and click the Administration => Management tab.

B. Enter a different password in the Router Password field, and enter the same password in the second field to confirm the password.

C. Click the Save Settings button.

Broadband Router with 2 Phone Ports

12. I am a PPPoE user, and I need to remove the proxy settings or the dial-up pop-up window.

If you have proxy settings, you need to disable these on your computer. Because the Router is the gateway for the Internet connection, the computer does not need any proxy settings to gain access. Please follow these directions to verify that you do not have any proxy settings and that the browser you use is set to connect directly to the LAN.

For Microsoft Internet Explorer 5.0 or higher:

A. Click Start, Settings, and Control Panel. Double-click Internet Options.

B. Click the Connections tab.

C. Click the LAN settings button and remove anything that is checked.

D. Click the OK button to go back to the previous screen.

E. Click the option Never dial a connection. This will remove any dial-up pop-ups for PPPoE users.

For Netscape 4.7 or higher:

A. Start Netscape Navigator, and click Edit, Preferences, Advanced, and Proxies.

B. Make sure you have Direct connection to the Internet selected on this screen.

C. Close all the windows to finish.

13. To start over, I need to set the Router to factory default.

Hold the Reset button for approximately five seconds and then release it. This will return the password, forwarding, and other settings on the Router to the factory default settings. In other words, the Router will revert to its original factory configuration.

14. My DSL service’s PPPoE is always disconnecting.

PPPoE is not actually a dedicated or always-on connection. The DSL ISP can disconnect the service after a period of inactivity, just like a normal phone dial-up connection to the Internet. There is a setup option to “keep alive” the connection. This may not always work, so you may need to re-establish connection periodically.

A. To connect to the Router, go to the web browser, and enter http://192.168.15.1 or the IP address of the Router.

B. Enter the password, if asked. (The default password is admin.)

C. On the Basic Setup tab, select the option Keep Alive, and set the Redial Period option at 20 (seconds).

D. Click the Save Settings button.

E. Click the Status tab, and click the Connect button.

F. You may see the login status display as Connecting. Press the F5 key to refresh the screen, until you see the login status display as Connected.

If the connection is lost again, follow steps E and F to re-establish connection.

15. I can't access my email, web, or VPN, or I am getting corrupted data from the Internet.

The Maximum Transmission Unit (MTU) setting may need to be adjusted. By default, the MTU is set at 1500. For most DSL users, it is strongly recommended to use MTU 1492. If you are having some difficulties, perform the following steps:

A. To connect to the Router, go to the web browser, and enter http://192.168.15.1 or the IP address of the Router.

B. Enter the password, if asked. (The default password is admin.)

C. On the Basic Setup tab, look for the MTU option, and select Enable. In the Size field, enter 1492.

D. Click the Save Settings button to continue.

Broadband Router with 2 Phone Ports

If your difficulties continue, change the Size to different values. Try this list of values, one value at a time, in this order, until your problem is solved: 1462 1400 1362 1300

16. I need to use port triggering.

Port triggering looks at the outgoing port services used and will trigger the Router to open a specific port, depending on which port an Internet application uses. Follow these steps:

A. To connect to the Router, go to the web browser, and enter http://192.168.15.1 or the IP address of the Router.

B. Enter the password, if asked. (The default password is admin.)

C. Click the Applications & Gaming => Port Triggering tab.

D. Enter any name you want to use for the Application Name.

E. Enter the Start and End Ports of the Triggered Port Range. Check with your Internet application provider for more information on which outgoing port services it is using.

F. Enter the Start and End Ports of the Forwarded Port Range. Check with your Internet application provider for more information on which incoming port services are required by the Internet application.

17. When I enter a URL or IP address, I get a time-out error or am prompted to retry.

Go through this checklist until your problem is solved:

  • Check if other PCs work. If they do, ensure that your workstation’s IP settings are correct (IP Address, Subnet Mask, Default Gateway, and DNS). Restart the computer that is having a problem.
  • If the PCs are configured correctly, but still not working, check the Router. Ensure that it is connected and powered on. Connect to it and check its settings. (If you cannot connect to it, check the LAN and power connections.)
  • If the Router is configured correctly, check your Internet connection (DSL/cable modem, etc.) to see if it is working correctly. You can remove the Router to verify a direct connection.
  • Manually configure the TCP/IP with a DNS address provided by your ISP.
  • Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct connection to the Internet.

Frequently Asked Questions

How do I make a phone call?

Pick up the phone and dial. Use 7-, 10-, or 11-digit dialing for calls within the same area code as your Internet phone number. Use 10- or 11-digit dialing for calls outside of your area code.

Can I make calls if my Internet connection is down?

No. Your high-speed Internet connection must be active when you make Internet phone or fax calls.

Can I make calls while I’m browsing the Internet?

Yes. You can make Internet phone or fax calls while browsing the Internet. However, your web browsing may affect the quality of your telephone call, depending on the amount of upstream data traffic passing through your Internet connection.

Can I receive calls while my network is down?

You cannot directly receive calls while your network is down. However, your Internet phone service provider can forward calls to a different telephone number, such as a cellular phone number, if you activate a feature called Network Availability Number. You can configure this feature through your service account.

Broadband Router with 2 Phone Ports

What is the maximum number of IP addresses that the Router will support?

The Router will support up to 253 IP addresses.

Where is the Router installed on the network?

In a typical environment, the Router is installed between the cable/DSL modem and the local area network (LAN). Plug the Router into the cable/DSL modem’s Ethernet port.

Does the Router support IPX or AppleTalk?

No. TCP/IP is the only protocol standard for the Internet and has become the global standard for communications. IPX, a NetWare communications protocol used only to route messages from one node to another, and AppleTalk, a communications protocol used on Apple and Macintosh networks, can be used for LAN to LAN connections, but those protocols cannot connect from the Internet to the LAN.

What is Network Address Translation and what is it used for?

Network Address Translation (NAT) translates multiple IP addresses on the private LAN to one public address that is sent out to the Internet. This adds a level of security since the address of a PC connected to the private LAN is never transmitted on the Internet. Furthermore, NAT allows the Router to be used with low cost Internet accounts, such as DSL or cable modems, when only one TCP/IP address is provided by the ISP. The user may have many private addresses behind this single address provided by the ISP.

Does the Router support any operating system other than Windows 98, Millennium, 2000, or XP?

Yes, but Linksys does not, at this time, provide technical support for setup, configuration or troubleshooting of any non-Windows operating systems.

Does the Router support ICQ send file?

Yes, with the following fix: click ICQ menu => preference => connections tab=>, and check I am behind a firewall or proxy. Then set the firewall time-out to 80 seconds in the firewall setting. The Internet user can then send a file to a user behind the Router.

I set up an Unreal Tournament Server, but others on the LAN cannot join. What do I need to do?

If you have a dedicated Unreal Tournament server running, you need to create a static IP for each of the LAN computers and forward ports 7777, 7778, 7779, 7780, 7781, and 27900 to the IP address of the server. You can also use a port forwarding range of 7777 to 27900. If you want to use the UT Server Admin, forward another port (8080 usually works well but is used for remote admin. You may have to disable this.), and then in the [UWeb.WebServer] section of the server.ini file, set the ListenPort to 8080 (to match the mapped port above) and ServerName to the IP assigned to the Router from your ISP.

Can multiple gamers on the LAN get on one game server and play simultaneously with just one public IP address?

It depends on which network game or what kind of game server you are using. For example, Unreal Tournament supports multi-login with one public IP.

How do I get Half-Life: Team Fortress to work with the Router?

The default client port for Half-Life is 27005. The computers on your LAN need to have “+clientport 2700x” added to the HL shortcut command line; the x would be 6, 7, 8, and on up. This lets multiple computers connect to the same server. One problem: Version 1.0.1.6 won’t let multiple computers with the same CD key connect at the same time, even if on the same LAN (not a problem with 1.0.1.3). As far as hosting games, the HL server does not need to be in the DMZ. Just forward port 27015 to the local IP address of the server computer.

How can I block corrupted FTP downloads?

If you are experiencing corrupted files when you download a file with your FTP client, try using another FTP program.

The web page hangs; downloads are corrupt, or nothing but junk characters are being displayed on the screen. What do I need to do?

Force your Ethernet adapter to 10Mbps or half duplex mode, and turn off the “Auto-negotiate” feature of your Ethernet adapter as a temporary measure. (Please look at the Network Control Panel in your Ethernet adapter’s Broadband Router with 2 Phone Ports

Advanced Properties tab.) Make sure that your proxy setting is disabled in the browser. Check our website at www.linksys.com for more information.

If all else fails in the installation, what can I do?

Reset the Router by holding down the Reset button for approximately five seconds. Reset your cable or DSL modem by powering the unit off and then on. Contact your Internet phone service provider for assistance. Refer to “Appendix H: Contact Information” for contact information.

Will the Router function in a Macintosh environment?

Yes, but the Router’s setup pages are accessible only through Internet Explorer 5.0 or Netscape Navigator 5.0 or higher for Macintosh.

I am not able to get the web configuration screen for the Router. What can I do?

You may have to remove the proxy settings on your Internet browser, e.g., Netscape Navigator or Internet Explorer. Or remove the dial-up settings on your browser. Check with your browser documentation, and make sure that your browser is set to connect directly and that any dial-up is disabled. Make sure that your browser is set to connect directly and that any dial-up is disabled. For Internet Explorer, click Tools, Internet Options, and then the Connection tab. Make sure that Internet Explorer is set to Never dial a connection. For Netscape Navigator, click Edit, Preferences, Advanced, and Proxy. Make sure that Netscape Navigator is set to Direct connection to the Internet.

What is DMZ Hosting?

Demilitarized Zone (DMZ) allows one IP address (computer) to be exposed to the Internet. Some applications require multiple TCP/IP ports to be open. It is recommended that you set your computer with a static IP if you want to use DMZ Hosting. To get the LAN IP address, see “Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter.”

If DMZ Hosting is used, does the exposed user share the public IP with the Router?

No.

Is the Router cross-platform compatible?

Any platform that supports Ethernet and TCP/IP is compatible with the Router.

How many ports can be simultaneously forwarded?

Theoretically, the Router can establish 520 sessions at the same time, but you can only forward 10 ranges of ports.

Does the Router replace a modem? Is there a cable or DSL modem in the Router?

No, this version of the Router must work in conjunction with a cable or DSL modem.

Which modems are compatible with the Router?

The Router is compatible with virtually any cable or DSL modem that supports Ethernet.

How can I check whether I have static or DHCP IP addresses?

Ask your ISP to find out.

How do I get mIRC to work with the Router?

Under the Applications & Gaming => Port Range Forwarding tab, set port forwarding to 113 for the PC on which you are using mIRC.

What is a MAC Address?

The Media Access Control (MAC) address is a unique number assigned by the manufacturer to any Ethernet networking device, such as a network adapter, that allows the network to identify it at the hardware level. For all practical purposes, this number is usually permanent. Unlike IP addresses, which can change every time a Broadband Router with 2 Phone Ports

computer logs onto the network, the MAC address of a device stays the same, making it a valuable identifier for the network.

How do I reset the Router?

Press the Reset button on the back panel for about five seconds. This will reset the Router to its default settings.

Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter

This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC filtering and/or MAC address cloning feature of the Router. You can also find the IP address of your computer’s Ethernet adapter. This IP address is used for the Router’s filtering, forwarding, and/or DMZ features. Follow the steps in this appendix to find the adapter’s MAC or IP address in Windows 98, Me, 2000, or XP.

Windows 98 or Me Instructions

  1. Click Start and Run. In the Open field, enter winipcfg. Then press the Enter key or the OK button.
  2. When the IP Configuration screen appears, select the Ethernet adapter you have connected to the Router via a CAT 5 Ethernet network cable. Figure B-1: IP Configuration Screen
  3. Write down the Adapter Address as shown on your computer screen. This is the MAC address for your Ethernet adapter and is shown as a series of numbers and letters.
Cheap Phone

The MAC address/Adapter Address is what you will use for MAC address cloning or MAC filtering.

The example shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may show

something different.

Cheap Phone

Broadband Router with 2 Phone Ports

Windows 2000 or XP Instructions

  1. Click Start and Run. In the Open field, enter cmd. Press the Enter key or click the OK button.
  2. At the command prompt, enter ipconfig /all. Then press the Enter key.
  3. Write down the Physical Address as shown on your computer screen; it is the MAC address for your Ethernet adapter. This appears as a series of numbers and letters.
Cheap Phone

The MAC address/Physical Address is what you will use for MAC address cloning or MAC filtering. Figure B-3: MAC/Physical Address The example shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may show something different.

For the Router’s Web-based Utility

For MAC address cloning, enter the 12-digit MAC address in the fields provided, two digits per field. For MAC filtering, enter the 12-digit MAC address in this format, XXXXXXXXXXXX, WITHOUT the hyphens. Figure B-4: MAC Address Clone

Cheap Phone Cheap Phone

Appendix B: Finding the MAC Address and IP Address for Your Ethernet Adapter Windows 2000 or XP Instructions

Appendix C: Windows Help

Almost all Linksys products require Microsoft Windows. Windows is the most used operating system in the world and comes with many features that help make networking easier. These features can be accessed through Windows Help and are described in this appendix.

TCP/IP

Before a computer can communicate with a network router, TCP/IP must be enabled. TCP/IP is a set of instructions, or protocol, all PCs follow to communicate over a network. This is true for wireless networks as well. Your PCs will not be able to utilize wireless networking without having TCP/IP enabled. Windows Help provides complete instructions on enabling TCP/IP.

Shared Resources

If you wish to share printers, folder, or files over your network, Windows Help provides complete instructions on utilizing shared resources.

Network Neighborhood/My Network Places

Other PCs on your network will appear under Network Neighborhood or My Network Places (depending upon the version of Windows you're running). Windows Help provides complete instructions on adding PCs to your network.

Broadband Router with 2 Phone Ports

 

 
   
   
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