Zoom ADSL X4 User manual

USER’S MANUAL
ADSL Modem
X4

NOTICE
NOTICENOTICE
NOTICE
This document contains proprietary information protected by copyright, and
this Manual and all the accompanying hardware, software, and
documentation are copyrighted. No part of this document may be
photocopied or reproduced by mechanical, electronic, or other means in
any form.
The manufacturer does not warrant that the hardware will work properly in
all environments and applications, and makes no warranty or representation,
either expressed or implied, with respect to the quality, performance,
merchantability, or fitness for a particular purpose of the software or
documentation. The manufacturer reserves the right to make changes to the
hardware, software, and documentation without obligation to notify any
person or organization of the revision or change.
All brand and product names are the trademarks of their respective owners.
© Copyright 2002
All rights reserved.

Contents
1: INSTALLATION INSTRUCTIONS.................................. 4
1.1 IMPORTANT! BEFORE YOU BEGIN .......................................... 4
1.2 PACKAGE CONTENTS.......................................................... 5
1.3 QUICK START INSTRUCTIONS............................................... 6
1.4 IF YOU NEED HELP...........................................................14
2: ADVANCED SETUP OPTIONS ..................................... 15
2.1 HOW TO USE THE ADVANCED OPTIONS.................................15
2.2 WAN SETTINGS..............................................................16
2.3 LAN SETTINGS ...............................................................20
2.4 NAT FIREWALL...............................................................22
2.5 VIRTUAL SERVER .............................................................23
2.6 DMZ............................................................................26
2.7 DNS ............................................................................28
2.8 ADSL CONFIGURATION.....................................................29
2.9 MISCELLANEOUS..............................................................30
3: SYSTEM ADMINISTRATION....................................... 32
3.1 MONITORING SYSTEM STATUS ............................................32
3.2 MONITORING ADSL STATUS ..............................................33
3.3 PERFORMING SYSTEM ADMINISTRATION TASKS........................35
3.4 RESETTING THE UNIT TO ITS DEFAULT SETTINGS.....................36
3.5 UPDATING THE UNIT’S FIRMWARE........................................37
4: REMOVING THE X4 MODEM....................................... 38
APPENDIX A: FRONT AND BACK PANEL INFORMATION39
APPENDIX B: CONFIGURING YOUR BROWSER............. 41
APPENDIX C: WINDOWS 95, MACINTOSH, AND LINUX
USERS: CONFIGURING YOUR TCP/IP SETTINGS.......... 46
APPENDIX D: TROUBLESHOOTING................................ 53
APPENDIX E: REGULATORY INFORMATION.................. 55

4 X4 ADSL Modem User’s Manual
1
Installation Instructions
1.1 Important! Before you Begin
Before installing your X4 ADSL modem, you must have DSL
service enabled on your telephone line. To do this, you need to
sign up with a DSL service provider. They will arrange to have
DSL enabled, and provide you with a User Name and Password (if
required) and the Communications Settings necessary to log on to
their network.
You will need your User Name and Password to complete the
installation, so please make sure you have them at hand.
User Name _________________________
Password _________________________
The following table lists some of DSL broadband communications
settings. This table is intended for reference only. Typically you
should not need to enter this information; it should be
automatically supplied if needed as part of your service provider’s
installation procedure.

Chapter 1: Installation Instructions 5
Service Provider VPI VCI Protocol (Encapsulation)
France (1) 8 35 PPPoA LLCSNAP (RFC 2364)
France (2) 8 67 PPPoA (RFC 2516) or PPPoE
(RFC 2364)
Portugal 0 35 PPPoE LLCSNAP (RFC 2516)
Spain—Wanadoo 8 32 Routed IP over ATM LLCSNAP
(RFC 1483)
Spain—Telefonica 8 32 PPPoE LLCSNAP (RFC 2516)
Spain—Tiscali 1 32 PPPoA VCMUX (RFC 2364)
U.K. (1) 0 38 PPPoA VCMUX (RFC 2364)
U.K. (2) 0 38 PPPoE LLCSNAP (RFC 2516)
U.S.A. 0 35 PPPoE LLCSNAP (RFC 2516)
Venezuela—CANTV 0 33 Routed IP over ATM LLCSNAP
(RFC 1483)
1.2 Package Contents
In addition to these installation instructions, your package includes
the following items:
•X4 ADSL unit
•Power adapter and power cord
•Straight-through Ethernet cable
•USB cable
•RJ-11 phone cord
•RJ-11-to-wall-jack adapter (certain models only)
•CD-ROM, including installation software
•Warranty and Customer Support information (on CD-ROM)
•Phone filter(s) (certain models only).
If anything is missing or damaged, please contact your supplier.

6 X4 ADSL Modem User’s Manual
You Will Also Need
•A Macintosh, Linux, or Windows
95/98/98SE/2000/NT/Me/XP computer equipped with a
Network Interface Card (NIC) or a Windows
98/98SE/2000/Me/XP computer equipped with a USB port.
•A telephone wall jack to plug the X4 unit into. The associated
phone line must be DSL enabled.
1.3 Quick Start Instructions
Your computer should be on. You can connect your X4 unit to
your computer’s Ethernet or USB port. Depending on your
preference, follow the appropriate instructions below.
Note: Optionally, you can use both the X4’s Ethernet jack and its
USB jack. By connecting two computers individually to
your X4 unit—one using the Ethernet jack and the other
using the USB jack—it is possible to share Internet access.
To Connect via the Ethernet Option
1
11
1Macintosh, Linux, Windows NT, and 95 Users:
You do not need to run the CD-ROM software.
Skip to Step 2 below.
Windows 98/98SE, Me, 2000, and XP Users:
Install the software before connecting the hardware.
a
aa
aInsert the supplied CD-ROM into your computer. The
CD starts automatically and the Main Menu opens:
(Note: If the CD does not start automatically, from the
desktop, go to Start | Run and then type D:\setup.exe,
where Dis the letter of your CD-ROM drive.)

Chapter 1: Installation Instructions 7
b
bb
bClick the ADSL Modem Installation Wizard button,
and then click the Ethernet option. The software
installation proceeds automatically.
c
cc
cWhen the process is complete, you will be prompted to
click Finish. Your computer will shut down so you can
connect the hardware.
2
22
2All hardware connections originate from the modem’s back
panel.
PWR ON OFF RESET ETHERNET PHONE ADSLUSB

8 X4 ADSL Modem User’s Manual
(For reference, we have included a table that defines these
back panel ports, or jacks; see page 39.)
a
aa
aPlug one end of the included power adapter into the
unit’s PWR jack and the other end into a power strip or
wall receptacle.
b
bb
bTurn the unit on by pushing the ON/OFF toggle switch.
The PWR light on the unit’s front panel turns on.
c
cc
cPlug one end of the supplied phone cord into the unit’s
ADSL jack and the other end into the ADSL wall jack.
d
dd
dPlug one end of the straight-through Ethernet (10BaseT)
cable into the modem’s ETHERNET jack and plug the
other end into your computer’s corresponding Ethernet
port.
Note: You can also attach the X4 to an access point or a
network hub via its ETHERNET jack and thereby connect
multiple computers.
—If your hub has an uplink or daisy chain port, you can use
the supplied straight-through Ethernet cable to connect the
two.
—If your hub has a numbered port or if you are using an
access point, you need a crossover Ethernet cable (sold
separately).
Throughout this manual, when we refer to an X4 Ethernet
connection, it should be understood that this connection may
be to a computer, access point, or hub.
3
33
3Turn your computer back on.
4
44
4The unit performs a startup sequence—the front panel LINK
light blinks. (For reference, we have included a table on page
39 that defines the X4’s front panel lights.) When the LINK
light changes from blinking to solid, proceed to Establishing
Communication with the X4 (page 10).

Chapter 1: Installation Instructions 9
To Connect via the USB Option
1
11
1You must install the requisite USB software on your
Windows computer before connecting the hardware.
a
aa
aInsert the supplied CD-ROM into your computer. The
CD starts automatically and the Main Menu opens:
(Note: If the CD does not start automatically, from the
desktop, go to Start | Run and then type D:\setup.exe,
where Dis the letter of your CD-ROM drive.)
b
bb
bClick the ADSL Modem Installation Wizard button
and, if prompted, the USB option. The software
installation proceeds automatically. When the process is
complete, the Main Menu minimizes for future use and a
Zoom Web Console icon resides on your desktop.
2
22
2Now connect the hardware. All connections originate from
the X4’s back panel.
(For reference, we have included a table that defines these
back panel ports, or jacks; see page 39.)
a
aa
aPlug one end of the included power adapter into the
unit’s PWR jack and the other end into a power strip or
wall receptacle.
PWR ON OFF RESET ETHERNET PHONE ADSLUSB

10 X4 ADSL Modem User’s Manual
b
bb
bTurn the unit on by pushing the ON/OFF toggle switch.
The PWR light on the unit’s front panel turns on.
c
cc
cPlug one end of the supplied phone cord into the unit’s
ADSL jack and the other end into the ADSL wall jack.
d
dd
dPlug one end of the USB cable into the modem’s USB
jack and plug the other end into your computer’s
corresponding USB port.
3
33
3The unit performs a startup sequence—the front panel LINK
light blinks. (For reference, we have included a table on page
39 that explains the meaning of the X4’s front panel lights.)
Note: You may see a Found New Hardware box
indicating the progression of the installation; typically no user
action is necessary. If you are using Windows XP, however,
you may be required to click Next.
4
44
4Depending on your operating system, you may see a
Hardware Installation disclaimer box or a Digital
Signature Not Found dialog box. You can safely ignore
these messages and click Yes or Continue Anyway.
Windows XP Users: If prompted to do so, click Finish.
When the startup sequence is complete, the LINK light will
change from blinking to solid. Continue below with
Establishing Communication with the X4.
Establishing Communication with the X4
1
11
1Depending on your computer’s operating system, you may
have a Zoom Web Console icon on your desktop.
•If you do, double-click it to display the Network
Password dialog box.
•If you do not have a Zoom Web Console icon on your
desktop, open your Web browser, type http://10.0.0.2
and press Enter to display the Network Password box.

Chapter 1: Installation Instructions 11
Note: If your web browser doesn’t open properly, it may be
that your Internet settings need adjustment. Turn to page 41
for instructions.
Note: This User Name and Network Password are different
from the ones that your service provider gave you.
They provide an added level of security that protects
your ADSL unit’s settings.
Type the X4’s default User Name and Password.
•User Name=admin
•Password=zoomadsl
Remember: The User Name and Password are case-
sensitive.
Tip: If the Network Password box doesn’t display, perform
the following in this order:
a
aa
aRecheck all connections.
b
bb
bRestart the modem and computer.
c
cc
cPerform a “hard” reset. (See page 36.)

12 X4 ADSL Modem User’s Manual
2
22
2The Basic Setup page displays. You are now communicating
with your X4. This page provides details about your Internet
connection and includes information that the X4 uses to
automatically connect to your service provider.
a
aa
aCheck that the VPI, VCI, and Encapsulation settings
match those supplied by your service provider. (Refer to
the table on page 5 if necessary or consult your provider.)
b
bb
bEnter the User Name and Password supplied by your
service provider.
c
cc
cOptional: Enter a Service Name if your service provider
has given you one.
d
dd
dClick Save Changes and then click Write Settings to
Flash and Reboot. Once the reboot is complete and the
unit has reset itself (when the front panel’s LINK light
remains on steady again), your X4 is ready to use. You
can open another Web browser or use the one that is
already open to access the Internet.

Chapter 1: Installation Instructions 13
IMPORTANT:
Every time you make changes to the Basic Setup page,
you must click the Save Changes button and then the
Write Settings to Flash and Reboot button. A
Confirm page displays; click the button to complete the
process. If not, any changes will be lost when you
navigate to another page.
Using Phone Filters
You should use a filter with each device—phone, fax machine,
analog modem, etc.—that is sharing the DSL-enabled line, because
this prevents the device from receiving noise when the DSL
modem is on. Your X4 modem includes an onboard filter, so you
can plug a phone or other device directly into the X4’s PHONE
jack if you like. Plugging a device into this jack is optional, not
required. Tip: If your package includes a two-jack filter, you should
plug your telephone into the filter’s PHONE end, rather than the
X4’s PHONE jack.
For other devices on the DSL-enabled line, plug the device’s phone
cord into the filter’s PHONE end, and plug the filter’s LINE end
into the wall jack. Some X4 models come with filters, and more can
be purchased from a retailer or service provider.
Now that your modem is installed and appropriate filters are
attached, you’re done. Enjoy using the X4.

14 X4 ADSL Modem User’s Manual
The remainder of this manual contains information intended for
those users looking for expanded capabilities or for future
reference—for example, there are chapters on Advanced Setup
Options and System Administration. Refer to the Table of
Contents for guidance.
1.4 If You Need Help
•If you have hardware installation problems, our Technical
Support Staff will be happy to assist you.
Windows Users: Please see the Customer Support portion of
the CD for contact information. You may also want to refer to
the Frequently Asked Questions on the CD.
Macintosh and Linux Users: You will find Customer
Support information and Documentation in Adobe PDF
format in the appropriately named folders in the CD-ROM’s
directory.
•If you have DSL service problems, you should contact your
DSL service provider.

Chapter 2: Advanced Setup Options 15
2
Advanced Setup Options
In addition to its basic setup options, the X4 unit includes
options for specialized, or advanced, settings. If you are like
most users, you will not need these options. The X4 is designed
so that the basic setup settings are sufficient for most users.
This chapter is applicable only if you need to perform
sophisticated tasks.
2.1 How To Use the Advanced Options
All the Advanced Configuration settings are accessible from the
Advanced Setup page. Click its icon at the top of the X4’s main
interface page. (If you have exited from the X4 and have forgotten
how to establish communication with it, refer to page 10.)

16 X4 ADSL Modem User’s Manual
IMPORTANT:
Every time you make changes to an Advanced Setup page,
you must click the Save Changes button and then the Write
Settings to Flash and Reboot button. A Confirm page
displays; click the button to complete the process. If not, any
changes will be lost when you navigate to another page.
2.2 WAN Settings
The WAN Settings page contains information pertaining to your
Wide Area Network (WAN) ADSL setup and how you access the
Internet. From the Advanced Setup page, click the WAN
Settings button. A screen displays with several fields to fill in. For
each field or category, we have included a table for reference.

Chapter 2: Advanced Setup Options 17

18 X4 ADSL Modem User’s Manual
Permanent VC (Virtual Circuit) Settings
Your service provider will supply the Permanent Virtual Circuit
(PVC) setting for your basic Internet connection. You can define
additional PVCs for services such as telephony or to connect to a
managed Virtual Private Network (VPN) if available in your area.
Consult your service provider.
Enabled? Enabled by default.
VPI Supplied by your service provider (reference
table appears on page 5).
VCI Supplied by your service provider (reference
table appears on page 5).
Static IP Address Most providers use dynamic IP addressing;
only providers using Bridged or Routed IP
Encapsulation can use static IP addresses. If
your provider has given you a static IP
address, enter it here.
Subnet Mask For static IP address users only (see above):
Enter the subnet mask of the static IP
address given to you by your service provider.
Virtual Circuits No. of virtual circuits that can be set up: 1-7.
After filling out these fields, scroll down to the Virtual Circuit
field and select a number from the dropdown list to identify this
PVC. Note: The number 0 is reserved for the Basic Setup settings
preconfigured for your provider. Be sure to click Save Changes
and then Write Settings to Flash and Reboot.
Once you have set up multiple PVCs, you can switch between
them by selecting a different number from the Virtual Circuit
dropdown list and clicking Save Changes and Writing Settings
to Flash and Reboot.
ATM
ATM, or Asynchronous Transfer Mode, allows you to change the
way in which your data is sent over the Internet.
ATM Service Category Default is UBR (Unspecified Bit Rate). CBR
(Constant Bit Rate) is optional. You can only
use CBR if you have arranged to do so with
your provider.
Bandwidth Default is 0(which equals UBR). Specifying
bandwidth is only possible with CBR.

Chapter 2: Advanced Setup Options 19
Encapsulation
The Encapsulation Mode is related to the VPI and VCI numbers,
which are specified by your service provider (see Permanent VC
Settings, page 18).
Mode Supplied by your service provider (reference table
appears on page 5).
Bridge
Your Bridge choices are related to the Encapsulation Mode (see
above). Note: You must enable Bridge if your service provider is
using Bridged IP LLC or VCMUX (RFC 1483) Encapsulation.
IGMP (Internet Group Management Protocol)
IGMP is the Internet standard for IP multicasting, or broadcasting
a message to many recipients simultaneously. Your choices are
enabled or disabled; the default is disabled.
IMPORTANT:
Before enabling IGMP, navigate to the Advanced Setup
page, click Misc Configuration, select Enabled in the
IGMP Proxy dropdown list, and click Save Changes and
Write Settings to Flash and Reboot. If you don’t
perform this step first, enabling IGMP on this page will
not have any effect.
Default Gateway
Normally, you would not enter anything into the Default Gateway
field. You would do so only if you want to connect your modem to
the Internet via a different Gateway Router, or if your service
provider has instructed you to change it.
PPP (Point-to-Point Protocol)
PPP is the most widely used protocol for authenticating your
connection to the Internet. Should you change service providers,
you may need to change the data in these fields. Note: These
settings also appear on your Basic Settings page.

20 X4 ADSL Modem User’s Manual
User Name Supplied by your service provider.
Password Supplied by your service provider.
Service Name Optional; supplied by your service provider.
Disconnect Time ADSL connection will be dropped after the
ADSL line is idle for a certain amount of time
(measured in seconds). Select 0to ensure
that you won’t be disconnected.
Authentication PPP user authentication method. Default is
Auto; you can specify CHAP or PAP only.
Automatic Reconnect Disabled by default. Check this box if you
want to be reconnected automatically if the
ADSL connection is terminated
unexpectedly.
DHCP (Dynamic Host Configuration Protocol)
Typically, you should not need to change your DHCP setting. The
only case when you might want to change it is if your provider is
using Bridged or Routed IP Encapsulation. Your service provider
will instruct you.
DHCP client enable Check this box only if instructed to by your
service provider.
Host Name If necessary, supplied by your service
provider.
2.3 LAN Settings
By modifying your LAN ADSL setup and DHCP settings, you can
control the number of computers that can connect to the X4. The
default address range allows 12 computers to join the network. To
change your settings, from the Advanced Setup page click the
LAN Settings button.