Northwood Network Service

DSL NETWORKING GUIDE

IT Communications ServicesThe University of MichiganMarch 2006Rev. 1.4

Our Virtual Community

Welcome to the University of Michigan and the Northwood community! Upon reading this information booklet you are joining another community -- a virtual community made up of students, faculty and staff who value diversity and the freedom to pursue learning, teaching and research.

The Northwood Network Service exists to serve the network connectivity needs of those members of our virtual community who live in Northwood Complexes I - V. The DSL Networking Guide will direct you through the process of connecting your computer to the Internet from your apartment. This guide will instruct you how to activate your DSL Service, what to do with your connection, and what to do if anything should go wrong.

When you go online and interact with peers at U-M and around the world, you set the standards. You set an example and your actions will shape the virtual community of the future. In the “real world” there are well-established laws, community standards of behavior, and generally accepted morals and ethics that guide and shape our everyday interactions with others. Transgressions against another member of the community or the community itself are dealt with according to “the rules.”

While the virtual community does have some rules, use of technology has raised many issues that the community as a whole is still learning to deal with. E-mail privacy, distribution of copyrighted materials like videos or MP3s, electronic harassment, and spam are just a few examples of problems that we have only begun to address.

People of good conscience who witness or hear repeatedly about abuses of technology which may be illegal, unethical, or immoral may begin to question, or even go against, their sense of right and wrong. This gradually wears away at the standards of the community, establishing an attitude of “everyone else is doing it, why shouldn’t I?” If this attitude prevails, the community that many have worked hard to build and nurture, is lost.

University Housing and ITCom are committed to promoting the ethical use of the network and supporting the members of the community in doing so. With your help and desire to maintain this valuable campus resource, we know that the virtual community will not only endure but also improve and evolve over time.

DSL Team Mike Clancy, HITO Project Manager Nan Godwin, ITCom Product Leader

Copyright © 2006 The Regents of the University of Michigan.

TABLE OF CONTENTS

Section One - What Is DSL?.............................................................................1

Section Two - Getting Connected....................................................................2Recommended System Specifications.....................................................2Ethernet Adapter Selection.......................................................................3Ethernet Adapter Installation....................................................................4

Section Three - The DSL Modem.....................................................................5Connecting the Hardware.........................................................................6

Section Four - Configuring Your Computer....................................................9Windows 98SE / Windows ME.................................................................9Windows 2000 / XP................................................................................12Macintosh OS 9.x...................................................................................14Macintosh OS X (10.1.3 or newer).........................................................15

Section Five - Registering Your Computer with DHCP................................16Before You Register...............................................................................16DSL Conditions of Use Statement..........................................................16DHCP Registration.................................................................................18Final Registration Steps..........................................................................19

Section Six - Troubleshooting Your DSL Connection..................................20Troubleshooting the ZyXEL Modem.......................................................20Troubleshooting TCP/IP.........................................................................21DHCP Registration Troubleshooting.......................................................21Getting Help............................................................................................22

Section Seven - Staying Connected -- and Protected..................................23The U-M Internet Access Kit (Blue Disc)................................................23Protection from Viruses, Worms, and other Malware.............................23Protection from Hackers.........................................................................23Power Issues..........................................................................................23

SECTION ONE - WHAT IS DSL?

Many of you may already have experience with an Internet Service Provider (ISP) that offers you access to the Internet from your home. Until fairly recently, most commercial ISPs provided access to the Internet via dial-up modems, operating at relatively slow speeds like 28.8 or 56 Kbps. In the last 2-3 years, cable modem and Digital Subscriber Line (DSL) services that offer high-speed Internet access (also called "broadband"), have swiftly grown in popularity. These services typically provide access at 15-25 times the speed of dial-up. The broadband service we provide in Northwood is a DSL service that is 2-3 times faster than most commercially available high-speed services! Like commercial broadband services, it is "always on" whenever your computer is turned on, and although it uses telephone wiring, it does not tie up your telephone line while you browse the web or read your e-mail.

DSL is provided to all of the Northwood apartments. All you need to use this service is a computer with an Ethernet adapter. Some Internet connectivity software may also need to be installed if your computer does not already have it, but this is provided free of charge to you as a University student.

The DSL service uses a DSL modem that has been permanently installed in your apartment. It is configured especially for the networking environment in the Northwood apartments and must remain in the apartment when you leave. If you move to a different apartment within the Northwood complex you simply connect your computer to the modem that has been installed in your new apartment.

The DSL modem used allows up to four computers to share the same DSL connection. We will discuss the DSL modem in more detail later in this Guide.

IMPORTANT NOTE: For questions about the DSL service which are not covered in this guide, please contact the ITCS Helpdesk, 764-HELP, (on campus, dial 4-4357), or send e-mail describing your problem to online.consulting@umich.edu. For more details, see http://www.itcom.itcs.umich.edu/housing/

To begin using the DSL service, read through the following pages for setup instructions and troubleshooting tips.

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SECTION TWO - GETTING CONNECTED

In addition to the DSL modem that has been installed in your apartment, here’s what you need to get connected:

A Windows PC or Macintosh computer that meets the System Requirements shown below.

The system disks or CD-ROM for your computer’s operating system (e.g., Windows XP CD-ROM). These will also be needed if you have to make repairs to your computer.

An Ethernet Adapter (also called a Network Interface Card, or NIC). In most cases, your computer will already have a built-in Ethernet adapter, but if not, you will need to purchase and install it yourself.

A Working knowledge of the University’s policies and guidelines governing the use of computing and network facilities (see Conditions of Use)

This Networking Guide, with configuration and registration instructions for your computer

Recommended Minimum System Specifications

We recommend that your computer meet, or be upgraded to meet, the following specifications:

Windows PC Macintosh

CPU Pentium III class or later Power MAC G3 or later

Operating System Windows 2000, or XP Pro Mac OS X (10.2 or higher)

RAM 256 MB 256 MB

Hard Disk Space Availability

2 GB 2 GB

CD-ROM Drive Required Required

Computers Not Meeting Minimum Requirements

Although DSL may be configured to work with XP Home, it is recommended that residents upgrade their operating system to Windows XP Pro. Operating system upgrades are available for a minimal charge from the U-M Computer Showcase, http://showcase.itcs.umich.edu/.

You may use a computer that does not meet these recommended specifications but you may experience degraded performance. Also, no troubleshooting assistance will be available for systems that do not meet the above specifications. Likewise, you

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may be able to use a non-supported operating system (e.g., Linux), but you will be "on your own" for setup and troubleshooting it.

Ethernet Adapter Selection

Supported Ethernet Adapter Modes

DSL connections provided in Northwood support 10BaseT Ethernet adapters. Use the table below to make sure your adapter type will work.

Adapter Type

10BaseT10/100Base

T10/100/1GBas

eT100BaseT/

1GBaseT OnlyOthers

Works with DSL?

Yes Yes Yes No No

Recommended Manufacturers

The following are recommended Ethernet adapter manufacturers. These manufacturers have demonstrated reliable products and excellent documentation and support. You may, of course, activate the Ethernet service for a computer with an Ethernet adapter not specified below. Built-in Ethernet adapters on new Apple, Dell and IBM systems available through the U-M Computer Showcase are also recommended.

Windows PC Macintosh

Recommended Manufacturers

3Com, Intel, Linksys, SMC,

XircomApple, Asante, Proxim

Not Recommended

We have experienced difficulties configuring the following adapter/computer combinations:

EigerTech PC adapters with Macintosh Laptops Linksys adapters on some Toshiba laptops Older 3Com ISA adapters on IBM Aptiva models

We recommend that you not try to connect to the network using these card/computer combinations.

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Ethernet Adapter Installation

Recommended Ethernet Adapter Types

We recommend that Windows PC users electing to install their own Ethernet adapter select a PCI model for the easiest installation, using Windows plug-and-play support. However, some inexpensive systems or older systems may not have an available PCI slot. If you do not have a PCI slot available, an ISA Ethernet adapter can be used. Again, for a number of reasons, your PC may not have an available ISA slot or resources for an ISA Ethernet adapter; please consult your manual or system retailer for information about the expandability of your computer. Also, please note that ISA adapters offer varying degrees of plug-and-play support and/or hardware configuration utilities. For these reasons, the computing industry is moving away from the ISA architecture, ISA Ethernet adapters may be difficult to locate, and the technology is not recommended.

Finally, if you are equipping a portable computer with a PC Card Ethernet adapter, you may want to purchase a card with both Ethernet and modem capabilities. This will allow you to connect via modem while you are traveling, or if, in the future, you live in a location that does not offer cable modem or DSL service.

Installation Options

If your computer will require the installation of an Ethernet adapter, you may perform the installation yourself or have the installation performed at an authorized service facility.* When installing an Ethernet adapter, follow the instructions carefully. For a desktop computer, expect the process to take about 30 minutes. For a laptop, expect it to take about 15 minutes. Using a computer service facility may have an associated cost, but does offer the novice an assurance that the upgrade was performed properly. Always ask the service representative to confirm by a demonstration that the upgrade was performed successfully.

* NOTE: Consider that some computer warranties are invalidated if an uncertified party opens the unit. Please see your computer documentation to determine the extent of your computer’s warranty and your liability in performing an Ethernet card installation.

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SECTION THREE - THE DSL MODEM

The DSL Service currently uses the ZyXEL Prestige 660HW ADSL 2/2+ Gateway (Modem). The modem is permanently attached to the wall and will only work on the jack where it has been placed. No attempts should be made to move it, and it must remain in the apartment when you leave.

The ZyXEL Prestige 660HW allows up to 4 computers to share the DSL connection. It has been configured in advance of installation to comply with the connection protocols and design of the DSL network. The modem is configured to allow each computer connected to it to receive its own IP address directly from the network. That is, the modem supports bridging, and is not configured to do network address translation (NAT).

One 10BaseT Ethernet cable with RJ-45 connectors is provided with each ZyXEL modem. If you plan to connect more than one computer to the Internet in your apartment, you will need to purchase additional RJ-45 cables. They should be straight-through Ethernet cables. RJ-45 Ethernet cables are available from local computer vendors, including the U-M Computer Showcase.

IMPORTANT NOTE ABOUT THE ZYXEL PRESTIGE 660HW MODEM

The modem includes a non-removable wireless antenna. While the ZyXEL Prestige 660HW is capable of wireless connectivity, this feature is not enabled at this time. There are issues with security, privacy, and signal strength which ITCom and University Housing plan to address. The wireless feature may be enabled at some future time.

If you have young children, please make sure that they do not accidentally break off the wireless antenna. You may wish to place a piece of furniture in front of the modem so that children would not be tempted to play with it. (Anything placed in front of the modem should not touch the modem, however. The modem does get warm when it is turned on and needs to have some free space around it to prevent overheating.)

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Connecting the Hardware

Pictured below (Figure 1) is the ZyXEL modem with the various cables attached. The modems are permanently attached to the wall in the "upside down" position (with the cables and wireless antenna coming out of the bottom).

Figure 1

The DSL cable (RJ-11) is attached to the wall jack. Please note that only one port on the wall jack is active - do not attempt to move the DSL cable to a different port on the jack, or to a different jack. The DSL cable fits only one port on the DSL modem (see Figure 2 below). The power adapter is connected to an electrical outlet.

If you choose to use a surge protector (not shown), you would attach the surge protector to the electrical outlet and the power adapter for the ZyXEL modem to the surge protector. The surge protector should remain powered up or it will not protect the equipment from a power surge.

Figure 2 shows the rear panel of the modem, which faces down towards the floor as the modem is installed. This figure shows more clearly what cables are connected to what ports on the modem.

When plugging an Ethernet cable into one of the LAN ports, take care to hold the modem in place with your free hand so that the modem is not accidentally dislodged from the wall.

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computerEthernet cable

(RJ-45)

power adapterDSL cable (RJ-11)

ZyXEL P-660HW modem

wireless antenna (NOT activated)

Figure 2

Figure 3 shows the front panel of the modem, with labels for each of the LEDs (lights). Functional descriptions of each of the LEDs can be found in Table 1.

Figure 3

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wireless antenna(NOT activated)

ON/OFFpower button

poweradaptercable

reset button - DO NOT USE unless instructed to during

trouble-shooting call!

LAN ports 1-4, showing RJ-45 Ethernet cable attached to port 1. Other end of RJ-45 cable is attached to computer.

ZyXEL P-660HW Modem

DSL cable (RJ-11)

Power/System(PWR/SYS)

LAN 1 through 4

Wireless LAN (WLAN) -

NOT activated

DSL/PPP

ZyXEL P-660HW Modem

Table 1: ZyXEL P660HW Front Panel LED Descriptions

LEDCOLOR

STATUS

DESCRIPTION

PWR/SYS

GreenOn The modem is receiving power and functioning properly.

Blinking The modem is rebooting.

Red On Power to the modem is too low.

Off The system is not ready or has malfunctioned.

LAN 1-4

GreenOn The modem has a successful 10Mb Ethernet connection.

Blinking The modem is sending/receiving data.

AmberOn The modem has a successful 100Mb Ethernet connection.

Blinking The modem is sending/receiving data.

Off The LAN is not connected.

WLAN

Green

On

The modem is ready, but is not sending/receiving data through the wireless LAN.

**WLAN NOT ACTIVATED.**

Blinking

The modem is sending/receiving data through the wireless LAN.

**NOT APPLICABLE.**

OffThe wireless LAN is not ready or has failed.

**WLAN NOT ACTIVATED.**.

DSLGreen

Fast Blinking

The modem is sending/receiving data.

Slow Blinking

The modem is initializing the DSL line.

On The system is ready, but is not sending/receiving data.

Off The DSL link is down.

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SECTION FOUR - CONFIGURING YOUR COMPUTER

Before you can use your DSL connection, you must configure your computer properly, and then register it with the DHCP service to obtain an IP address.

Windows 98SE / Windows ME

Part One - Configure Windows 98SE/ME Networking Software

If you haven’t already done so, connect an Ethernet cable to one of the LAN ports (1 through 4) on the ZyXEL modem and to the Ethernet port on your computer, then turn on the ZyXEL modem and your computer. You should have your Windows 98SE installation media available (CD or pre-installed installation files on your hard drive).

1. Select Start -> Settings -> Control Panel. If necessary (Windows ME), select View All Control Panel Options located on the left side of the screen.

2. Open the Network control panel by double-clicking its icon.3. Select the Configuration tab if you are not already on it.

In your list of installed components, look for TCP/IP or TCP/IP followed by the name of your Ethernet network card. If you do not find it, you must add it. TCP/ IP -> Dial-Up Adapter, AOL, etc. is NOT sufficient. To add the TCP/IP component, follow these steps:

1. Select the Add button.2. Select Protocol -> Add -> Microsoft as the manufacturer, and TCP/IP as the

product.3. Select OK in all of the panels that remain open to close all of the windows.

Windows 98SE will prompt you to restart your machine (your Windows 98SE CD, disks or preinstalled files on your hard drive will be required).

You should now have three network components installed: the network adapter, TCP/IP, and the Client for Microsoft Networks.

If TCP/IP is already installed, go on to Part Two.

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Part Two - Configure Windows 98SE/ME TCP/IP Settings

In the Network Control Panel Configuration tab, highlight TCP/IP, and select Properties. You will be presented with a standard Windows 98SE tabbed dialog box.

1. The IP Address tab is already open. Select Obtain an IP address automatically.

2. Click the DNS Configuration tab. Select Disable DNS.

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3. Click the Gateway tab and remove any existing entries.

4. Select OK in all of the panels that remain open.

5. Windows 98SE/ME will prompt you to restart your machine.

Part Three - Confirm that You Are Ready to Register with DHCP

1. Make sure that the ZyXEL modem is plugged in properly and turned on.2. Click Start and select Run.3. Type winipcfg and click OK to open the IP Configuration window.4. The numbers and letters will not be the same as

the picture on the right, but will be similar.5. You should see your Ethernet card listed. If not,

pull down the list at the top to select your Ethernet card.

6. Select the Release button. The IP Address will then be all zeroes (0.0.0.0).

7. Select the Renew button. The IP Address should change to 10.213.xxx.xxx (the x's will be numbers). If this fails, repeat Part Two and steps 1-7 of Part Three again.

8. If your IP address has successfully changed to 10.213.xxx.xxx, click OK to close the IP Configuration window -- you are ready to go on to Section 5, Registering Your Computer with DHCP (see pp. 16-19). If not, repeat all steps in this section and/or see the Troubleshooting Section.

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Windows 2000 / XP

Part One - Configure Windows 2000/XP Networking Software

If you haven’t already done so, connect an Ethernet cable to one of the LAN ports (1 through 4) on the ZyXEL modem and to the Ethernet port on your computer, then turn on the ZyXEL modem and your computer.

1. Select Start -> Settings -> Network and Dial-Up Connections (Windows 2000) Network Connections (Windows XP Pro).

2. Select Local Area Connection.3. In the Local Area Connection Status panel, click Properties.

If Internet Protocol (TCP/IP) is not listed under the installed components, you must add it. You will need your Windows 2000 or XP installation media available (CD or pre-installed installation files on your hard drive).

To add TCP/IP:

1. Select Install -> Protocol2. Click Add and select TCP/IP.3. Navigate to the TCP/IP protocol on your

installation media or hard drive and install it.4. Click OK on the open panels until you get

back to the Local Area Connection Properties panel.

Part Two - Configure Windows 2000/XP TCP/IP Settings

1. Highlight Internet Protocol (TCP/IP), then select Properties.

2. In the TCP/IP Properties panel, make sure the settings are Obtain an IP address automatically and Obtain DNS server address automatically.

3. Click OK on the open panels up to and including the Local Area Connection Properties panel.

4. Click Close to close the Local Area Connection Status panel.

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Part Three - Confirm that You Are Ready to Register with DHCP

1. Make sure that the ZyXEL modem is plugged in properly and turned on.2. Click Start and select Run.3. Type cmd and click OK.4. On the black DOS

screen that opens up, type ipconfig /all and press Enter. Make sure that there is a space between the "g" and the "/". You'll see some information about your Ethernet card.

5. Type the command ipconfig /release and press Enter. The IP address for your Ethernet adapter should become all zeroes (0.0.0.0).

6. Type ipconfig /renew and press Enter. The IP address should change to 10.213.xxx.xxx (the x's will be numbers). The numbers you see will not be the same as in the screen shot above.

7. If your IP address has successfully changed to 10.213.xxx.xxx, type exit to close the DOS screen. You are now ready to go on to Section 5, Registering Your Computer with DHCP (see pp. 16-19). If your IP address starts with anything other than 10.213, repeat all steps in this section and/or see the Troubleshooting Section.

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Macintosh OS 9.x

Part One - Configuring the TCP/IP Control Panel

If you haven’t already done so, connect an Ethernet cable to one of the LAN ports (1 through 4) on the ZyXEL modem and to the Ethernet port on your computer, then turn on the ZyXEL modem and your computer.

1. Select the Apple Menu -> Control Panels -> TCP/IP.2. From the Edit Menu, select User Mode.3. Select Basic and click OK.4. In the Connect via pop-up menu,

select Ethernet.5. In the Configure pop-up menu, select

Using DHCP Server.6. Close the window and save the

settings when prompted.

Part Two - Confirming that You Are Ready to Register with DHCP

To be able to register your computer on the network, your IP address must be in the form 10.213.xxx.xxx, with “xxx.xxx” being replaced by numbers. This confirms that you are connected to the limited University network that will allow you to register with the DHCP server to obtain an IP address. To check this:

1. Make sure that the ZyXEL modem is plugged in properly and turned on.2. Re-open the TCP/IP control panel as above.3. If your IP address is in the form 10.213.xxx.xxx (the x's will be numbers), close

the TCP/IP window -- you are ready to move on to Section 5, Registering Your Computer with DHCP (see pp. 16-19). If your IP address is in any form other than 10.213.xxx.xxx, repeat the steps to here, then, if necessary, consult the Troubleshooting section of this Guide.

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Macintosh OS X (10.1.3 or newer)

Part One - Configuring the Network System Preference Panel

If you haven’t already done so, connect an Ethernet cable to one of the LAN ports (1 through 4) on the ZyXEL modem and to the Ethernet port on your computer, then turn on the ZyXEL modem and your computer.

1. Select Apple -> System Preferences.2. In System Preferences, select Network from the

top row of preferences or from “Internet & Network”.

3. In the Network System Preferences panel, make sure that Location is set to Automatic and Configure is set to Built-in Ethernet.

4. Under the TCP/IP tab, Configure should be set to Using DHCP.

5. Click Apply Now.6. Close the Network preferences window (click on

the red button in the upper left hand corner of the window).

7. From the System Preferences menu, select Quit System Preferences.

Part Two - Confirming that You Are Ready to Register with DHCP

To be able to register your computer on the network, your IP address must be in the form 10.213.xxx.xxx, with “xxx.xxx” being replaced by numbers. This confirms that you are connected to the limited University network that will allow you to register with the DHCP server to obtain an IP address. To check this:

1. Make sure that the ZyXEL modem is plugged in properly and turned on.2. Re-open the Network System Preference window as above.3. Under the TCP/IP tab, if your IP address is in the form 10.213.xxx.xxx (the

x's will be numbers), close the Network window -- you are ready to move on to Section 5, Registering Your Computer with DHCP (see pp. 16-19). If your IP address is in any form other than 10.213.xxx.xxx, repeat the steps

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to here, then, if necessary, consult the Troubleshooting section of this Guide.

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SECTION FIVE - REGISTERING YOUR COMPUTER WITH DHCP

In order to be able to use your connection, you need an IP address. This uniquely identifies your computer on the DSL network, the U-M network, and the Internet in general. To obtain an IP address, you must complete the DHCP registration step discussed in this section. Your Internet connection will not work until you complete this registration process!

Before You Register

As you sign up for the DSL service, you are choosing to join another community -- the virtual community of students, faculty, and staff at the University of Michigan. Members of our community value diversity and the freedom to pursue learning, teaching, and research. A physical community consists of members who share resources, intentions, and commitment to the purposes of the group. For the virtual community, the same dynamic exists; you share network resources (file storage and bandwidth), intentions (use of technology for your chosen academic pursuits) and the commitment to adhere to the community rules. As a condition of activating a connection to the DSL network from your residence, you are required to abide by the DSL Conditions of Use Statement, the Proper Use of Information Resources, Information Technology, and Networks at the University of Michigan, the Guidelines for Implementing the Proper Use Policy, and the MichNet Acceptable Use Policy.

The Conditions of Use Statement found below articulates the shared community values required to operate this network effectively and efficiently.

DSL Conditions of Use Statement

Basic Agreement

I am aware that my DSL networking services can be suspended or terminated at any time if I violate these conditions. In order to be considered for reactivation, it is my responsibility to demonstrate that I have corrected any violations.

I am aware that violations of state and federal law -– including but not limited to misuse of intellectual property and malicious or unauthorized access to systems -– may result in legal action.

I understand that I am not guaranteed a network connection or a specific amount of network bandwidth. Network resources may be managed to optimize performance of some applications or resources and slow down other applications or resources.

I understand that the security of my computer system is my responsibility, and that I am responsible for all activity originating from my computer system, including but not limited to: a) traffic generated by viruses; b) the

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sharing of music or other media files; and c) other users who have gained access to my computer.

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Access and Permitted Use

I will not provide access to any University resource for those not rightfully due such access, nor will I allow others to access resources under my identity.

I will not redistribute or provide access to University resources for any fee or other consideration.

I will not use my network connection to run a commercial enterprise or to support other activities designed to provide me with income or other consideration.

I will not perform any action that denies another network user access to network resources.

I will not engage in behavior that has the effect of identifying weaknesses in or gaining access to services, resources, networks, or computers for which I am not authorized. I will not scan computers to detect access points or vulnerabilities.

I understand that excessive use of the network is subject to restriction and sanctions. Excessive use is defined as using an amount of network resources beyond what is comparable to a single, interactive network session such as web browsing.

I understand that servers and other services are only permitted if they utilize a sufficiently small portion of network resources. This includes but is not limited to the sharing of music and other media files.

Network Integrity

I will not perform any action that would impair the function or compromise the integrity of the computer network or result in the denial or degradation of another user’s access to the network.

I will not alter or remove network wiring, equipment or network jacks.

I am aware that as a condition of connecting my system to the network, my system may be subject to network monitoring and vulnerability scanning to ensure the security and reliability of the network and to prevent my system from being vulnerable to attack or being used to launch attacks.

I understand that violations of University and Internet Service Provider policies regarding technology and network usage will be subject to possible disconnection of my network service and disciplinary action. These include, but are not limited to The Proper Use of Information Resources, Information Technology, and Networks at the University of Michigan (http://spg.umich.edu/pdf/601.07-0.pdf), the Guidelines for Implementing the Proper Use Policy, (http://www.umich.edu/~policies/responsible-use.html), and the

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MichNet Acceptable Use Policy (http://www.merit.edu/mn/about/policies-acceptableuse.html).

DHCP Registration

You must complete DHCP registration from your own computer, connected to the ZyXEL Prestige 660HW DSL modem, in your apartment. Before you register, your computer will only be able to connect to the DHCP registration service -- you will not be able to read e-mail, surf the Internet, or do any other work that requires an Internet connection. Make sure that you have followed all the configuration steps appropriate to your computer's operating system in the previous section to confirm you are on this limited network (10.213.xxx.xxx).

In order to register you will need either Internet Explorer or Netscape Communicator/ Navigator (preferably the latest version).

1. Start Internet Explorer or Netscape.2. Click on the Stop button. You will not be able to load your browser's default

home page until you register with DHCP.3. From the File menu, select Open Page or Open Location in Navigator.4. Type in the following URL: https://hindsite.itd.umich.edu/~umdsl/selfreg5. Select Open.6. The registration screen will prompt you to

enter your uniqname and UMICH (Kerberos) password. Type them in and click Login.

7. You will see a confirmation message stating that registration was successful (or providing an error message explaining why registration failed). If registration fails, see the Troubleshooting section.

8. Complete the final registration steps appropriate to your operating system. These are displayed in the browser and are listed below.

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Final Registration Steps

Windows 98SE / ME:

1. Wait 10-15 minutes.2. Select Start -> Run.3. Type winipcfg and click OK. You should see your Ethernet card listed. If

not, pull down the list at the top to select your Ethernet card.4. Select the Release button. The IP address should become all zeroes

(0.0.0.0)5. Select the Renew button. The IP address should change to

141.213.xxx.xxx (the x's will be numbers).6. Close the IP Configuration window.

Windows 2000 / XP Professional:

1. Wait 10-15 minutes.2. Select Start >> Run.3. Type command and press Enter.4. At the prompt, type ipconfig /release and press Enter.5. At the prompt, type ipconfig /renew and press Enter.6. Type exit and press Enter.

Macintosh OS 9.x / OS-X:

1. Wait 10-15 minutes.2. Restart your computer.

If your computer cannot access the Internet after following this procedure, wait another 10-15 minutes and try Final Registration Steps again; the server may be processing registrations slowly. If the problem persists, first look at the Troubleshooting section of this Guide. Then, if necessary, call 4-HELP (764-4357). Be prepared to explain what procedure you have followed, in detail. "I cannot access the Internet" is not a sufficient explanation.

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SECTION SIX - TROUBLESHOOTING YOUR DSL CONNECTION

Basic DSL troubleshooting solutions are provided below. If you are unable to determine the problem using these tips, please see the contact information in the Getting Help section (below).

If you have not yet gone through the DHCP registration steps on the computer you are attempting to connect with, you will have to register first or your connection will not work. See Registering Your Computer with DHCP, Section Five in this guide.

Troubleshooting the ZyXEL Modem

If you have attempted to move the ZyXEL modem to a different jack, move it back! The DSL service will only work on the jack activated by the installer.

The LED lights on the ZyXEL modem provide troubleshooting information. They show failures with power, port connectivity problems, and overall performance. (For a full description of the LEDs, see Table 1 on Page 8.)

Table 2: Troubleshooting the ZyXEL Prestige 660HW

PROBLEM CORRECTIVE ACTION

None of the LEDs is lit on the ZyXEL modem.

* Make sure the power button on the modem is turned on and the power adapter is plugged firmly in to the modem and the power outlet on the wall.

* If you have added a surge protector between the ZyXEL modem and the power outlet, make sure it is turned on.

* After checking all cable connections and power buttons, if you still do not see any LEDs lit, you may have a hardware problem - call for assistance (see contact information under Getting Help).

The PWR/SYS LED is red.

Power to the ZyXEL modem is too low. If you have added a surge protector, try removing it and plugging the modem directly into the power outlet. If that does not fix the problem, call for assistance (see contact information under Getting Help).

None of the LAN LEDs 1 through 4 is lit.

* Check Ethernet cable connections - both to your computer and to the ZyXEL modem.

* If you have added another Ethernet cable to connect an additional computer, make sure it is the correct type (10baseT, straight-through Ethernet cable).

DSL/PPP LED is off.The DSL link is down. Try rebooting the modem (turn the power button off, wait 10-15 seconds, turn it on again, and wait until the DSL/PPP LED stops blinking green.

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Troubleshooting TCP/IP

After checking all physical connections, try the following tips in the order they are listed.

1. Make sure you have properly configured your Ethernet adapter following the configuration instructions in this Guide, and that your computer is actually using the configuration you set up.

2. Reboot the ZyXEL modem (wait several seconds between the time you turn the device off and back on again) and then reboot your computer.

3. In the case of a Windows computer, run the appropriate command to Release and Renew your IP address (see Confirming that You Are Ready to Register with DHCP).

4. After renewing your IP address:

If your IP address starts with 169, you may not have network connectivity or the DHCP service may be down. See Getting Help below to initiate a trouble ticket.

If your IP address starts with 10, you have connectivity but you need to register (or re-register) your computer with the DHCP service.

NOTE: If you get a new computer or a new Ethernet adapter for your computer, you will need to register it with DHCP.

If your IP address starts with 141.213, you have connectivity and a working connection, but there may be something wrong with the particular service or Website you are trying to reach. Try going to several different Websites or using more than one Internet application to help determine which service is affected. Or, wait 10-15 minutes and try again.

If your IP address starts with 141.213 but you can't use the Internet, try changing your Domain Name Service (DNS) settings. The default setting is to obtain Domain Name Service automatically. If necessary, you can change this to manually set the DNS addresses to 141.211.144.17 - primary and 141.211.125. 17 - secondary. Or, if you already have those servers set up to do DNS, you can try changing back to the automatic setting. (Depending on your operating system, you may have to reboot your computer after making this change.)

5. If necessary, call for assistance. See Getting Help below for contact information.

DHCP Registration Troubleshooting

When attempting to reach the Registration web page, you may see an error message saying “Cannot contact to host” or “DHCP Server unavailable”.

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This error is commonly seen when your browser automatically opens a default home page and you are not yet registered with the DHCP service. You cannot load a Web page on the Internet until you register (you may be able to open a U–M Web page, but not any page outside of the umich.edu domain). Click the STOP button in your browser to stop loading the default page, then type in the correct URL for registration.

If you still cannot load the Registration page, see Getting Help for contact information.

If, when attempting to register, you get an error message saying that registration had failed, check the error message at the very bottom of the page (in small print). Write the error message down completely before seeking assistance. See Getting Help below for troubleshooting contact information.

Getting Help

After trying all of these tips, if you are still having problems, call 4-HELP (764-4357). 4-HELP will provide you with network outage information as well as preliminary troubleshooting assistance. Be prepared to provide your name, uniqname, telephone number, street address and apartment number, and your computer's MAC address (physical address) and IP address information. You may also need to refer to the information on the label of the ZyXEL modem in your apartment.

To obtain your computer's MAC address and IP address, run the appropriate IP configuration command for your operating system (see the configuration section of this Guide).

If necessary, 4-HELP will forward your call on to the appropriate group for further troubleshooting with ITCom Field Service or Network personnel (weekdays only). If it is necessary to enter your apartment to make repairs, an appointment will be scheduled at a mutually convenient time.

If an appointment is made for a technician to visit your residence, make sure that the computer, ZyXEL modem, etc. are readily accessible to the technician.

NOTE: Neither ITCom, nor 4-Help, nor Housing will troubleshoot or make repairs to any additional networking equipment other than that which is provided by ITCom as part of the DSL service.

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SECTION SEVEN - STAYING CONNECTED -- AND PROTECTED

Now you're ready to begin exploring the online resources of the University of Michigan. In order to access these online resources, additional software (applications, utilities, and drivers) may need to be installed on your computer.

The U-M Internet Access Kit (Blue Disc)

The U-M Internet Access Kit (the "Blue Disc") is a collection of software to help you access on-campus and worldwide resources. The software in the kit has been pre-configured to take advantage of U-M computing resources, and includes U-M documentation. Some of the software in the kit, like Netscape, is freely available from other sources, while some of the software has been specially licensed and configured for members of the University community. The Blue Disc is produced by Information Technology Central Services (ITCS). It is available at the U-M Computer Showcase or the Media Union.

Protection from Viruses, Worms, and other Malware

Install virus protection software from the Blue Disc or, better yet, download the latest version from the U-M Virus-Busters website (http://virusbusters.itcs.umich.edu/), and make sure that it is updated at least weekly.

DO NOT disable the automatic virus updates. DO NOT open email attachments from people you do not know, and even if

you do know the sender, don't open an attachment if it is unsolicited.

Protection from Hackers

Stay completely current with all of Microsoft's Critical Updates. See http://windowsupdate.microsoft.com.

Install a firewall or (if you have Windows XP or Macintosh OS-X, turn on the operating system's own firewall). Generally a hardware firewall provides the most protection.

It is a good idea to keep your computer turned off when not in use. Hackers cannot access your computer if it is turned off.

Password-protect your machine. For Windows 2000/XP: do not use the Administrator account for daily tasks.

Power Issues

A good surge protector can prevent problems with power outages and surges. Help protect the ZyXEL modem as well as your computer by plugging both into a surge protector. The surge protector must be turned on in order to protect your equipment.

If you do not have a surge protector, in the case of severe weather and especially thunderstorms, unplug the ZyXEL modem and your computer from the power outlet.

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