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Linksys RT41P2-AT User Manual

Broadband router with 2 phone ports
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®
A Division of Cisco Systems, Inc.

Broadband Router

with 2 Phone Ports

User Guide

WIRED
RT41P2-AT
Model No.

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Summary of Contents for Linksys RT41P2-AT

  • Page 1: Broadband Router

    ® A Division of Cisco Systems, Inc. Broadband Router with 2 Phone Ports User Guide WIRED RT41P2-AT Model No.
  • Page 2 Broadband Router with 2 Phone Ports Copyright and Trademarks Specifications are subject to change without notice. Linksys is a registered trademark or trademark of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. Copyright © 2004 Cisco Systems, Inc. All rights reserved.

  • Page 3: Table Of Contents

    Broadband Router with 2 Phone Ports Table of Contents Chapter 1: Introduction Welcome What’s in this Guide? Chapter 2: Networking Basics An Introduction to Local Area Networks The Use of IP Addresses Chapter 3: Getting to Know the Router The Back Panel The Front Panel Chapter 4: Connecting the Router Overview...
  • Page 4 Windows 98 or Me Instructions Windows 2000 or XP Instructions For the Router’s Web-based Utility Appendix C: Windows Help Appendix D: Glossary Appendix E: Specifications Appendix F: Warranty Information Appendix G: Regulatory Information Appendix H: Contact Information AT&T Linksys Service...
  • Page 5 Broadband Router with 2 Phone Ports List of Figures Figure 3-1: Back Panel Figure 3-2: Front Panel Figure 4-1: Connect the Broadband Modem Figure 4-2: Connect a Telephone Figure 4-3: Connect a PC Figure 4-4: Connect the Power Figure 4-5: Router Connected to Another Router Figure 4-6: Connect the Broadband Modem Figure 4-7: Connect a Telephone Figure 4-8: Connect the Other Router...
  • Page 6 Broadband Router with 2 Phone Ports Figure 5-18: Administration Tab - Management Figure 5-19: Administration Tab - Log Figure 5-20: Administration Tab - Diagnostics Figure 5-21: Ping Test Figure 5-22: Traceroute Test Figure 5-23: Administration Tab - Factory Defaults Figure 5-24: Administration Tab - Backup and Restore Figure 5-25: Administration Tab - Reboot Figure 5-26: Status Tab - Router Figure 5-27: Status Tab - Local Network...

  • Page 7: Chapter 1: Introduction

    “wired”. To create your network, install and set up the Router. To guide you through the process, Linksys strongly recommends that you run the Setup Wizard on the Setup CD-ROM. If you prefer to manually set up the Router, use the instructions in the Quick Installation or this User Guide to help you.

  • Page 8: What's In This Guide

    Broadband Router with 2 Phone Ports What’s in this Guide? This user 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: •...
  • Page 9 • 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. Chapter 1: Introduction What’s in this Guide?

  • Page 10: Chapter 2: Networking Basics

    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.
  • Page 11 Broadband Router with 2 Phone Ports 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.

  • Page 12: Chapter 3: Getting To Know The Router

    Broadband Router with 2 Phone Ports 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. 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).

  • Page 13: The Front Panel

    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. Figure 3-2: Front Panel Power Green. The Power LED lights up when the Router is powered on. If the LED is flashing, the Router is booting up or running a system self-test.

  • Page 14: Chapter 4: Connecting The Router

    Broadband Router with 2 Phone Ports 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 One Router to Another.”...

  • Page 15: Connecting One Router To Another

    Broadband Router with 2 Phone Ports Connecting One Router to Another If you already have a router (for example, a wireless router) and want to add the Broadband Router with 2 Phone Ports, then you should use the Broadband Router with 2 Phone Ports as your primary router so the Internet phone calls will be routed properly.

  • Page 16: Figure 4-6: Connect The Broadband Modem

    Broadband Router with 2 Phone Ports To connect the Broadband Router with 2 Phone Ports to another router, follow these instructions: 1. Make sure that all of your hardware is powered off, including both routers, PCs, and broadband modem. 2. Disconnect your existing router from the broadband modem, PCs, and other network devices. 3.

  • Page 17: Chapter 5: Configuring The Router

    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.
  • Page 18 Broadband Router with 2 Phone Ports Security • Firewall. On this screen, you can configure a variety of filters to enhance the security of your network. • VPN. To enable or disable IPSec, PPTP, and/or L2TP Passthrough, use this screen. Access Restrictions •...

  • Page 19: How To Access The Web-Based Utility

    Broadband Router with 2 Phone Ports 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. A screen will appear asking you for your User Name and Password.

  • Page 20: Figure 5-4: Static Ip

    Broadband Router with 2 Phone Ports Static IP If you are required to use a permanent IP address, then select Static IP. Internet 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.

  • Page 21: Figure 5-6: Pptp

    Broadband Router with 2 Phone Ports PPTP Point-to-Point Tunneling Protocol (PPTP) is a service that applies to connections in Europe and Israel only. Internet 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.
  • Page 22 Broadband Router with 2 Phone Ports desired. It is recommended that you leave this value in the 1200 to 1500 range. For most DSL users, it is recommended to use the value 1492. By default, MTU is set at 1500 when disabled. Network Setup The Network Setup section allows you to change the Router’s local network settings.
  • Page 23 Broadband Router with 2 Phone Ports 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. Time Setting Time Zone. Select the time zone in which your network functions from this pull-down menu. If you want the Router to automatically adjust its clock for daylight savings, click the checkbox next to Automatically adjust clock for daylight saving changes.

  • Page 24: The Setup Tab - Ddns

    Broadband Router with 2 Phone Ports 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.

  • Page 25: The Setup Tab - Mac Address Clone

    Broadband Router with 2 Phone Ports 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 currently registered with your ISP to the Router using the MAC Address Clone feature.

  • Page 26: The Security Tab - Firewall

    Broadband Router with 2 Phone Ports The Security Tab - Firewall When you click the Security tab, you will see the Firewall screen. The Router’s firewall enhances the security of your network. You can also enable a variety of filters to further protect your network and block anonymous Internet requests.

  • Page 27: The Security Tab - Vpn

    Broadband Router with 2 Phone Ports The Security Tab - VPN The VPN screen allows you to allow VPN tunnels using IPSec, PPTP, or L2TP protocols to pass through the Router. VPN Passthrough IPSec Passthrough. IPSec (Internet Protocol Security) is a suite of protocols used to implement secure exchange of packets at the IP layer.

  • Page 28: The Access Restrictions Tab - Internet Access

    Broadband Router with 2 Phone Ports The Access Restrictions Tab - Internet Access The Internet Access screen allows you to block or allow specific kinds of Internet usage and traffic, such as Internet access, designated services, and websites during specific days and times. NOTE: If you have an AT&T CallVantage Service account, contact AT&T technical support at 1-866-596-8464 before you enable an Internet Access Policy.

  • Page 29: Figure 5-13: List Of Pcs

    Broadband Router with 2 Phone Ports 4. Click the Edit List of PCs button to select which PCs will be affected by the policy. The List of PCs screen will appear. You can select a PC by MAC Address or IP Address. You can also enter a range of IP Addresses if you want this policy to affect a group of PCs.

  • Page 30: The Applications & Gaming Tab - Port Range Forward

    Broadband Router with 2 Phone Ports The Applications & Gaming Tab - Port Range Forward When you click the Applications & Gaming tab, you will see the Port Range Forward 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.

  • Page 31: The Applications & Gaming Tab - Port Trigger

    Broadband Router with 2 Phone Ports The Applications & Gaming Tab - Port Trigger The Port Trigger 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.

  • Page 32: The Applications & Gaming Tab - Upnp Forward

    Broadband Router with 2 Phone Ports The Applications & Gaming Tab - UPnP Forward The UPnP Forward screen displays preset application settings as well as options to customize port services for other applications. UPnP Forward Application. Ten applications are preset. For custom applications, enter the name of your application in one of the available fields.
  • Page 33 Broadband Router with 2 Phone Ports NNTP (Network News Transfer Protocol). The protocol used to connect to Usenet groups on the Internet. Usenet newsreaders support the NNTP protocol. SNMP (Simple Network Management Protocol). A widely used network monitoring and control protocol. Data is passed from SNMP agents, which are hardware and/or software processes reporting activity in each network device (hub, router, bridge, etc.) to the workstation console used to oversee the network.

  • Page 34: The Applications & Gaming Tab - Dmz

    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. 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.

  • Page 35: The Administration Tab - Management

    Broadband Router with 2 Phone Ports 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 SNMP (Simple Network Management Protocol) and UPnP (Universal Plug and Play) features.
  • Page 36 Broadband Router with 2 Phone Ports SNMP SNMP, Simple Network Management Protocol, is a network protocol that provides network administrators with the ability to monitor the status of the Router and receive notification of any critical events as they occur on the network.

  • Page 37: The Administration Tab - Log

    Log Viewer IP Address. For a permanent record of these logs, Logviewer software must be used. This software is downloadable from the Linksys website, www.linksys.com. The Logviewer saves all incoming and outgoing activity in a permanent file on your PC’s hard drive. In the Log Viewer IP Address field, enter the fixed IP address of the PC running the Logviewer software.

  • Page 38: The Administration Tab - Diagnostics

    Broadband Router with 2 Phone Ports The Administration Tab - Diagnostics The diagnostic tests (Ping and Traceroute) allow you to check the connections of your network components. Ping Test. 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 and how many times you wish to test it, 5, 10, or unlimited.

  • Page 39: The Administration Tab - Factory Defaults

    Broadband Router with 2 Phone Ports The Administration Tab - Factory Defaults The Factory Defaults screen allows you to restore the Router’s configuration to its factory default settings. Factory Defaults Restore Factory Defaults. To clear all of the Router’s settings and reset them to its factory defaults, click the Yes radio button.

  • Page 40: The Administration Tab - Backup And Restore

    Broadband Router with 2 Phone Ports The Administration Tab - Backup and Restore The Backup and Restore screen allows you to back up and restore the Router’s configuration. Backup and Restore Please select a file to restore. In the field provided, enter the name of the configuration file you want to restore, or click the Browse button to find this file.

  • Page 41: The Status Tab - Router

    Broadband Router with 2 Phone Ports The Status Tab - Router The Router screen displays information about the Router and its current settings. Router Information Current Firmware Version. This shows the version and date of the firmware that is currently installed. Previous Firmware Version.

  • Page 42: The Status Tab - Local Network

    Broadband Router with 2 Phone Ports 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.

  • Page 43: The Status Tab - Voice

    Broadband Router with 2 Phone Ports The Status Tab - Voice The Voice screen displays information about your Internet phone line(s). Auto Config Status Auto Config Status. Each time the Router boots up, it automatically checks to see if it has the latest configuration for Internet phone service.

  • Page 44: Chapter 6: Signing Up For At&T Callvantage

    If you already have an Internet phone service account with AT&T, then select I signed up for service and want to activate. If you do not have an Internet phone service account with AT&T, then select I have my Linksys Router and want to sign up for service.

  • Page 45: Appendix A: Troubleshooting

    If your Internet phone service account is active, the Router will automatically download its Internet phone service settings once it is connected to the Internet again. If you do not have an active Internet phone service account, visit http://www.att.com/linksys to sign up for a new account or activate your account. Then follow the on-screen instructions.
  • Page 46 Broadband Router with 2 Phone Ports 4. 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.
  • Page 47 Broadband Router with 2 Phone Ports 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.
  • Page 48 Broadband Router with 2 Phone Ports 6. 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.
  • Page 49 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.
  • Page 50 Refer to “Problem #11, 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. 10. I need to set up a server behind my Router.
  • Page 51 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 Forward tab. B. Enter any name you want to use for the Application. C.
  • Page 52 Broadband Router with 2 Phone Ports Check “Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter” for details on getting an IP address. F. Check the Enable option for the port services you want to use. Consider the examples below: Application Start and End 7777 to 27900...
  • Page 53 Broadband Router with 2 Phone Ports 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.
  • Page 54 Broadband Router with 2 Phone Ports 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.

  • Page 55: Frequently Asked Questions

    Run the Setup Wizard or follow the instructions of the Quick Installation or User Guide to install and configure the Router for your type of Internet connection. To configure the Router for Internet phone service, visit https://www.att.com/linksys and sign up for or activate your account. How do I make a phone call? Pick up your phone and dial 1 + area code + phone number.
  • Page 56 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.
  • Page 57 Ethernet adapter as a temporary measure. (Please look at the Network Control Panel in your Ethernet adapter’s 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 thirty seconds.
  • Page 58 Under the Applications & Gaming => Port Range Forward tab, set port forwarding to 113 for the PC on which you are using mIRC. If your questions are not addressed here, refer to the AT&T website, http://www.usa.att.com/callvantage/faqs/index.jsp, or the Linksys website, www.linksys.com. Appendix A: Troubleshooting Frequently Asked Questions...

  • Page 59: Appendix B: Finding The Mac Address And Ip Address For Your Ethernet Adapter

    Broadband Router with 2 Phone Ports 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.

  • Page 60: For The Router's Web-Based Utility

    Broadband Router with 2 Phone Ports 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. The MAC address/Physical Address is what you will use for MAC address cloning or MAC filtering. Note: The MAC address is also called the Physical Address.

  • Page 61: Appendix C: Windows Help

    Broadband Router with 2 Phone Ports Appendix C: Windows Help Almost all networking 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.

  • Page 62: Appendix D: Glossary

    Broadband Router with 2 Phone Ports Appendix D: Glossary Adapter - A device that adds network functionality to your PC. Backbone - The part of a network that connects most of the systems and networks together, and handles the most data. Bandwidth - The transmission capacity of a given device or network.
  • Page 63 Broadband Router with 2 Phone Ports Default Gateway - A device that forwards Internet traffic from your local area network. DHCP (Dynamic Host Configuration Protocol) - A networking protocol that allows administrators to assign temporary IP addresses to network computers by “leasing” an IP address to a user for a limited amount of time, instead of assigning permanent IP addresses.
  • Page 64 Broadband Router with 2 Phone Ports Half Duplex - Data transmission that can occur in two directions over a single line, but only one direction at a time. Hardware - The physical aspect of computers, telecommunications, and other information technology devices. HTTP (HyperText Transport Protocol) - The communications protocol used to connect to servers on the World Wide Web.
  • Page 65 Broadband Router with 2 Phone Ports Ping (Packet INternet Groper) - An Internet utility used to determine whether a particular IP address is online. POP3 (Post Office Protocol 3) - A standard mail server commonly used on the Internet. Port - The connection point on a computer or networking device used for plugging in cables or adapters. Power over Ethernet (PoE) - A technology enabling an Ethernet network cable to deliver both data and power.
  • Page 66 Broadband Router with 2 Phone Ports Switch - 1. A data switch that connects computing devices to host computers, allowing a large number of devices to share a limited number of ports. 2. A device for making, breaking, or changing the connections in an electrical circuit.

  • Page 67: Appendix E: Specifications

    Broadband Router with 2 Phone Ports Appendix E: Specifications Model RT41P2-AT Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX) Ports/Buttons One 10/100 RJ-45 Port for Broadband Modem, Four 10/100 RJ-45 Switched Ports, Two RJ-11 Phone Ports, One Power Port, One Reset Button...
  • Page 68 Broadband Router with 2 Phone Ports Certifications Operating Temp. 0ºC to 40ºC (32ºF to 104ºF) Storage Temp. -20ºC to 60ºC (-4ºF to 140ºF) Operating Humidity 10% to 85%, Non-Condensing Storage Humidity 5% to 90%, Non-Condensing Appendix E: Specifications...

  • Page 69: Appendix F: Warranty Information

    Your exclusive remedy and Linksys' entire liability under this warranty will be for Linksys at its option to repair or replace the Product or refund Your purchase price less any rebates.

  • Page 70: Appendix G: Regulatory Information

    Broadband Router with 2 Phone Ports Appendix G: Regulatory Information FCC STATEMENT This product has been tested and complies with the specifications for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

  • Page 71: Appendix H: Contact Information

    Can't find information about a product you want to buy on the web? Do you want to know more about networking with Linksys products? Give our advice line a call at: Or fax your request in to: If you experience problems with any Linksys product,...

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