3Com OfficeConnect 3CR100A97 User manual

OfficeConnect® Gateway
ADSL Data (3CR100A97)
Quick Start Guide

3Com Corporation
5400 Bayfront Plaza
Santa Clara, California 95052-8145
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Congratulations on choosing the 3Com®OfficeConnect®Gateway,
your ADSL (Asymmetric Digital Subscriber Line) broadband
access solution. This guide describes how to set up the
OfficeConnect Gateway Data (3CR100A97) base unit.
The OfficeConnect Gateway allows one or more networked
computers to connect to the Internet or a remote LAN (Local
Area Network). Once connected, local users (a local branch office)
can communicate with remote computers (the main office) as if
they were connected locally.
Setting up the OfficeConnect Gateway Data unit is a three-step
process:
1) Unpacking and positioning
2) Connecting the cables
3) Configuring the OfficeConnect Gateway
This guide describes how to install and configure the
OfficeConnect Gateway Data base unit for shared internet access
using the unit’s default settings. For most users, you will not
need to modify the default settings to support your broadband
access requirements.
To set up your OfficeConnect Gateway Data base unit for shared
access to the internet, you must have the following:
•An Internet Service Provider (ISP) account.
•ADSL Service already installed at your location, with an avail-
able ADSL wall jack.
•A computer (PC) with Ethernet connectivity and TCP/IP soft-
ware. (Note: TCP/IP is automatically included with Windows
2000, ME, 98, 95, and NT.)
•A Web Browser, such as Microsoft Internet Explorer (4.0 or
later) or Netscape Navigator (4.0 or later), installed on your
computer.
1
Introduction
Before You
Begin

When positioning your OfficeConnect Gateway, make sure of the
following:
•Unit is out of direct sunlight and away from sources of heat.
•Cabling is away from power lines, fluorescent lighting fixtures,
and sources of electrical noise such as radios, transmitters, and
amplifiers.
•Water or moisture cannot enter the case of the unit.
•Air flow around the unit and through the vents in the side and
back of the case is not restricted. A minimum of 1 in. (2.54 cm)
clearance is recommended.
Using Rubber Feet and Stacking Clip
For desktop use, the four self-adhesive rubber feet
help to stabilize your OfficeConnect Gateway and pre-
vent sliding. Attach the feet to the marked areas at
each corner of the underside of your OfficeConnect
Gateway.
In addition, the stacking clip provided may be used
for stacking any other OfficeConnect units, such as the
OfficeConnect Gateway Voice Expansion Unit or
OfficeConnect Ethernet hubs and switches, neatly and
securely together. You can stack up to a maximum of
four units. To stack your units, secure the clip as
shown in Figure 1.
2
Unpack the contents of your package, and ensure that it includes
the following items:
•AC/DC, 18 watt Power Adapter and Power Cord
•LAN cable, RJ-45 (CAT-5), Blue
•ADSL cable, RJ-11/RJ-11, Black
•Rubber feet (4)
•Stacking clip
Positioning
the
Gateway
Package
Contents
Figure 1

The ports and cables of the OfficeConnect Gateway products are
color-coded to help you connect the cables properly.
The following illustration shows the connector cabling:
To connect the OfficeConnect Gateway’s cables:
1. Connect the DSL cable.
Connect the DSL cable (black) to the ADSL wall jack and the
other end to the DSL port (black) of your OfficeConnect Gateway.
2. Connect the LAN cable.
Connect one end of the LAN cable (blue) to the Ethernet port of
your computer and the other end to the LAN port (blue) on the
rear panel of the OfficeConnect Gateway.
3. Connect the power adapter.
Connect the cable from the power adapter to the Power inlet on
the rear panel of the unit. Connect the power cord to the power
adapter. Connect the other end of the power cord into a surge-
protected electrical outlet.
3
Connect
Cables
12V DC
1.5 A MAX
2
LAN Connection
1
DSL Connection
3
Power
Reset Button
12V DC
1.5 A MAX
Figure 2
Note: If you will be using
the 3Com OfficeConnect
Gateway Voice Expansion
Unit (3C100XF) with your
base unit, please refer to
the Quick Start Guide
supplied with the Voice
Expansion Unit for config-
uration and installation
information.

Each computer must be properly set up with TCP/IP and opti-
mized for use with dynamic IP addressing.
Checking for Dynamic or Static IP Addressing
•From the Start Menu, select Settings, and then Control Panel.
Windows 95, 98 or NT:
Double-click the Network icon. From the Configuration tab of
the Network window, select TCP/IP for the Ethernet Network
Interface Card (NIC) that will be associated with your
OfficeConnect Gateway. For Windows NT: Click the Protocols
tab on the Network window, and then select TCP/IP. Click
Properties. Click the IP Address tab on the TCP/IP Properties
window.
Windows 2000:
Double-click the Network and Dial-up Connections icon, then
double-click the Local Area Connection icon. Click Properties
on the Local Area Connection Status window and then select
Internet Protocol (TCP/IP) from the list of components shown
on the General tab of the Local Area Connection Properties win-
dow. Click the General tab on the Internet Protocol (TCP/IP)
Properties window.
•If Obtain an IP address automatically (Windows 95, 98, 2000) or
Obtain an IP address from a DHCP server (Windows NT) is
selected, your computer has a dynamic IP address.
•If Specify an IP address is selected, your computer has a static
IP address.
•Click Cancel to exit the window, and then click Cancel again on
the remaining windows until you get back to the Control Panel.
Where To Go from here…
If you are set up for dynamic IP addressing, proceed to the next
section, Configure the Gateway. If you are set up for static IP
addressing, record your settings. You will need them for your
final setup. Then set up dynamic addressing so you can continue
with the configuration of the OfficeConnect Gateway.
Once the unit is connected, the Power LED illuminates (green) on
the front panel of the OfficeConnect Gateway Data unit. Wait for
the Alert LED on the front panel to stop flashing (amber) and
transition to off, within 1-2 minutes.
When the Power LED is green and the Alert LED is off, it indi-
cates that the OfficeConnect Gateway Data unit has successfully
powered up, performed a Power On Self-Test (POST) and is now
operational.
4
Operational
Status
Optimizing
Your
Computer
DHCP: (Dynamic Host
Configuration Protocol):
Dynamic IP addressing is the
type of addressing scheme
most often used by Internet
Service Providers (ISPs), and
is also the type that is preva-
lent in many existing
corporate networks.
The OfficeConnect Gateway,
which can act as a DHCP
server, is optimized for use
with dynamic, rather than
static, IP addressing.
For most users, it is most
likely that your computer or
computers are already set up
for dynamic IP addressing. By
default, the OfficeConnect
Gateway assigns IP addresses
dynamically to each attached
computer.
Static IP Settings:
IP: ___ . ___ . ___ . ___
Mask: ___ . ___ . ___ . ___
GW: ___ . ___ . ___ . ___
DNS1: ___ . ___ . ___ . ___
DNS2: ___ . ___ . ___ . ___

The following procedure describes how to initially configure the
Wide Area Network (WAN) interface settings for your
OfficeConnect Gateway or re-configure them after resetting the
unit to its factory default settings.
Using a web browser on your PC, launch the OfficeConnect
Gateway home page by entering the OfficeConnect Gateway’s
default IP address, 192.168.1.1.
If after the initial connection the
OfficeConnect Gateway home
page (Fig 3) is displayed, then
the WAN interface has already
been configured for you.
Congratulations, your
OfficeConnect Gateway is
successfully configured and
ready for use.
If the WAN Interface Inactive message is displayed (Fig 4), your
first step is to create a password protected admin account and
configure the WAN interface.
Click Continue to proceed.
The system will display the
Username and Password Required
window (Fig 5) and prompts for
Username and Password. (Note:
The User Name and Password
entries are case-sensitive.)
The default value for the User Name is admin. There is no
default Password value. Enter admin in the User Name field and
leave the Password field blank (no entry). Click OK.
The system will display the Unprotected User window (Fig 6). You
need to assign a Password for your User Name (admin). This
window is displayed when the OfficeConnect Gateway Web
Configurator is accessed using
the system’s default password;
such as during the initial config-
uration of the unit or after the
factory default settings have
been restored.
Click Apply and the WAN Interface Configuration screen will
appear. Continue on to the WAN Configuration section on page 6.
Configure
the Gateway
5
Figure 3
Figure 4
Figure 5
Figure 6

Related
Documents
RFC1483
Dynamic
Configuration
The only information required for an RFC 1483 configuration in a
dynamic environment are the VPI/VCI numbers from your ISP.
The DHCP Client over WAN setting is enabled, and unless
instructed otherwise, the IP Routing Protocol should be set to
RIPv2.
Assign a meaningful name to your configuration in the PVC Name
(Private Virtual Circuit) field, and record your settings here:
PVC Name: ________________ VPI: _______ VCI: _______
Click the Apply button to apply your changes.
WAN
Configuration
After you successfully created your administrative account
and assigned a password, you can now start the WAN
configuration.
The WAN Configuration page is displayed (Fig 7).
Important: Before you begin, ensure that you have obtained all
required WAN parameter information from your Service Provider
to properly configure the connection.
To configure a WAN protocol, select it from the WAN Protocol
field’s drop-down menu. The following WAN protocols are sup-
ported: RFC 1483 (ATM Adaptation Layer 5 Protocol), RFC
1483-MER (MAC Encapsulated
Routing), PPPoE (Point-to-Point
Protocol over Ethernet), PPPoA
(LLC-SNAP) (Point-to-Point
Protocol over ATM with Logical
Link Control), and PPPoA (VC-
Mux) (Point-to-Point Protocol
over ATM with Virtual Circuit).
When you select a WAN proto-
col, the WAN Configuration page
interactively changes to display
the fields associated with the
selected protocol.
For a description of each field on the WAN Configuration page,
click the Help button.
After the WAN configuration is complete and you are connected,
go to the Documentation link in the online help section, to get
more detailed information and step-by-step instructions in the
OfficeConnect Gateway User’s Guide. Alternately you can type
www.3com.com/ocg/docs directly in your browser’s address bar.
6
Figure 7

Save Your
Configuration
RFC1483
Static
Configuration
PPPoE or
PPPoA
Configuration
Voice
Configuration
In an RFC 1483 or an RFC 1483-MER configuration with static IP
addressing, the DHCP Client over WAN setting is disabled. You
will also see fields for local and remote WAN IP addresses, and
for the WAN IP Mask.
Assign a meaningful name to your configuration in the PVC
Name field, and record your settings here:
PVC Name: ________________ VPI: _______ VCI: _______
Local WAN IP Address: _____ . _____ . _____ . _____
Remote WAN IP Address: _____ . _____ . _____ . _____
WAN IP Mask: _____ . _____ . _____ . _____
Click the Apply button to apply your changes.
7
The PPPoE and PPPoA configurations require a PPP login
account with your Service Provider, in addition to VPI/VCI
numbers and IP addresses. Select the appropriate protocol from
the WAN Protocol drop-down menu.
Assign a meaningful name to your configuration in the PVC
Name field, and record your settings here:
User Name: _______________ Password: _______________
PVC Name: ________________ VPI: _______ VCI: _______
If the Service Provider uses dynamic addressing, set the Address
Selection field to Negotiate. For static addressing, set the field to
Specified and complete the fields below:
Local WAN IP Address: _____ . _____ . _____ . _____
Remote WAN IP Address: _____ . _____ . _____ . _____
WAN IP Mask: _____ . _____ . _____ . _____
Click the Apply button to apply your changes.
The Voice Configuration page only appears when the
OfficeConnect Gateway Voice Expansion unit is connected to
your OfficeConnect Gateway Data unit, and is used to configure
the phone ports on the Voice Expansion unit.
Select the appropriate Gateway from the drop-down menu, fill in
the VPI and VCI numbers, and select the Companding value as
specified by your Service Provider. Record your settings here:
Gateway: _____________ VPI: _______ VCI: _______
Click the Apply button to apply your changes.
Important: Remember to save your completed configuration using
the SaveAll button.

Connecting
multiple
users
Connecting an additional hub:
After you have finished the configuration of your OfficeConnect
Gateway, you can connect an additional Ethernet hub or hubs to
add up to 253 users, which is the maximum supported by the
OfficeConnect Gateway.
Note: If you previously used static addressing, use Chapter 2 of
the User’s Guide (available online at www.3com.com/ocg/docs) and
the settings you recorded earlier to set up your workstations and
the OfficeConnect Gateway for static IP addressing.
An example of an eight-user connection is shown below (Fig 8),
using a 3Com OfficeConnect Ethernet Hub 8.
1. Verify network configuration.
Check with your network administrator that the built-in DHCP
server will not cause conflicts on the network. In most instances,
however, the OfficeConnect Gateway will automatically detect
the presence of another DHCP server on the network and disable
its own built-in DHCP server.
2. Connect the LAN cable.
Connect one end of the LAN cable
(blue) to a port of the ethernet
hub and the other end to the LAN
port (blue) on the rear panel of the
OfficeConnect Gateway.
3. Uplink port configuration
The OfficeConnect Gateway will
automatically detect uplink ports
and configure itself accordingly.
No further action is required.
Rebooting the OfficeConnect Gateway Data Base Unit:
To reboot an OfficeConnect Gateway Data unit that is powered
up, press and hold the Reset button for at least two seconds.
Reset Button
The Reset button is located on the rear panel of the OfficeConnect
Gateway Data Base Unit, as previously shown in the installation
diagram (Fig 2) on page 3.
Restoring Factory Default Settings:
To restore the factory default settings of the OfficeConnect
Gateway, press and hold the Reset button for five (5) seconds
while power-cycling the unit. This will restore the factory
default settings to all OfficeConnect Gateway parameters,
including the Administrator password.
8
Rebooting
the Unit
1.5 A MAX
10-18VDC
0•8A MAX
MDI/MDIX 8 7 6 5 4 3 2 1
OfficeConnect Gateway
ADSL Data
OfficeConnect
Ethernet Hub 8
Ethernet cable
Figure 8