3Com Network Card 3CR990 User Manual

EtherLink® 10/100 PCI  
Network Interface Card  
with 3XP processor  
User Guide  
®
3CR990 Family of EtherLink NICs  
You can print this user guide using Adobe Acrobat Reader, which is provided on  
the EtherCD that shipped with this product. Acrobat Reader is located in the  
language subdirectory.  
http://w w w.3com.com/  
Part No. 09-1742-000  
Published August 1999  
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BEFORE YOU BEGIN  
1
Product Registration  
The United States government places registration requirements on using data  
encryption products. To obtain customer support for 3CR990 NICs, you are  
required to register your NIC product with 3Com. You can register this product  
electronically or by U.S. mail.  
In addition to enabling customer support for your NIC, registration also entitles  
you to receive upgrade information and advance feature information.  
NOTE: The original version of Windows 95 (Build 950) does not automatically allow  
you to change your default browser, even if Microsoft Internet Explorer is not present.  
If you are running this version of Windows 95 on your PC, access the following site to  
NOTE: To be able to register electronically, a web browser must be installed on your  
system. You must also have an active Internet service provider (ISP) connection.  
To register electronically:  
1 Insert the EtherCD (that shipped with this product) in your CD-ROM drive.  
The EtherCD Welcome screen appears.  
If the Welcome screen does not appear  
2 Click Register Product, and then Register Online.  
3 Follow the prompts as they appear.  
To register by U.S. mail:  
1 Find and remove the registration card included in the EtherLink 10/100 PCI  
Network Interface Card Quick Guide that shipped with this product.  
2 Fill out the registration card and drop it in the mail. (No postage is required.)  
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10  
CHAPTER 1: BEFORE YOU BEGIN  
EtherCD Navigation  
This section provides information about EtherCD content and navigation.  
If auto insert is enabled for your CD-ROM drive, the 3Com Welcome screen is  
displayed when you insert the EtherCD in your CD-ROM drive.  
If the Welcome screen is not displayed when you insert the EtherCD in your  
CD-ROM drive, you can either enable the auto insert feature for your  
CD-ROM drive or navigate to the root subdirectories.  
Go to: Auto Insert.  
The following table describes the navigation links available on the Welcome screen:  
Links  
Description  
User Guide  
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Print a PDF version of the user guide  
Copy the online version of the user guide to your desktop  
View the user guide online with a web browser  
NIC Software  
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Install and configure the NIC in supported Windows  
operating systems  
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Perform the Preinstallation procedure (Windows 2000 only)  
Install DynamicAccess technology  
Create installation diskettes to install the NIC software in a PC  
that does not have a CD-ROM drive installed  
Other Software  
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Install Adobe Acrobat Reader (version 4.0 for English or version  
3.0 for international)  
Register Product  
Release Notes  
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Register your NIC product online  
Describes the features of 3CR990 NICs, includes frequently  
asked questions and known problems information  
Root Subdirectories The following table lists and describes the root subdirectories included on the  
EtherCD that shipped with this product.  
Subdirectory  
Description  
English  
Each language subdirectory contains files specific to that language.  
This subdirectory contains copies of Adobe Acrobat Reader (4.0 or  
3.0), CMI Client installation files, the Disk Copy utility, PDF and  
HTML versions of the user guide, and a user guide for diskette  
installation only in PDF format.  
Help  
Installation and configuration files, basic troubleshooting, support  
information, and system resource information.  
Installs  
Ndis2  
Contains images for DynamicAccess, MBA, and 3Com EtherDisks.  
Contains the DOS NDIS 2.x driver.  
NWClient  
Contains a DOS NetWare client driver file and runtime image file, a  
sample NET.CFG file, and an installer for the DOS ODI client driver.  
NWServer  
Contains a server driver, LDI import file, and appropriate NLMs for  
loading into a NetWare 4.1x or 5.0 server.  
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EtherCD Navigation  
11  
Auto Insert If auto insert is not enabled for your CD-ROM drive, the EtherCD Welcome screen  
is not displayed when you insert the EtherCD in your CD-ROM drive. To enable  
auto insert on your CD-ROM drive:  
1 Right-click the My Computer icon, and then select Properties.  
2 Select the Device Manager tab.  
3 Click the + symbol next to CD ROM in the list.  
4 Select the name of your CD-ROM drive.  
5 Click Properties, and then select the Settings tab.  
6 Select the check box for Auto insert notication.  
To view the Welcome screen on the CD navigator with auto insert enabled,  
reinsert the CD in the CD-ROM drive.  
Text Files The following table lists the text files that are included in the Help directory on the  
EtherCD that shipped with this product.  
Text File Name  
Text File Description  
win2000.txt  
Explains how to install the NIC, verify a successful installation, uninstall  
the NIC software, and update the driver.  
win98.txt  
Explains how to install the NIC, verify a successful installation, uninstall  
the NIC software, and update the driver.  
unt_w98.txt  
w95ndis.txt  
Explains how to perform an automated installation of Windows 98 over  
the network (unattended install).  
Provides instructions specific to Windows 95 for first-time installations,  
updating drivers, removing the NIC driver and EtherCD software,  
troubleshooting installation problems, and a peer-to-peer  
networking overview.  
w95netwr.txt  
winnt.txt  
Explains how to install the Windows 95 driver to support the Microsoft  
client for NetWare networks.  
Provides installation instructions and troubleshooting tips for installing  
drivers in Windows NT 4.0 and Windows NT 3.51.  
unt_nt4.txt  
netware.txt  
client32.txt  
nwdosodi.txt  
support.txt  
Explains how to perform an automated installation of Windows NT 4.0  
over the network (unattended install).  
Explains how to install the ODI driver for the NetWare 4.1x and  
5.0 server.  
Contains NetWare 4.11 on Windows 95/98 client driver  
installation notes.  
Explains how to install the driver for a 16-bit NetWare client  
running DOS.  
Contains information about technical assistance services available  
from 3Com.  
trouble.txt  
wakefaq.txt  
license.txt  
register.txt  
Contains troubleshooting tips.  
Contains common questions and answers about Remote Wake-Up.  
Includes the wording from the 3CR990 NIC software license agreement.  
Explains why and how to register your NIC.  
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12  
CHAPTER 1: BEFORE YOU BEGIN  
Installation Overview  
This section provides basic information that you need before you start the installation.  
Check List Before you start the installation, verify that you have all of the components that  
shipped with this product. If any of these items are damaged or missing, contact  
your shipper or network supplier.  
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3CR990 NIC  
Remote Wake-Up cable (Used only for 2.1 PCI specification-compliant PCs.)  
EtherCD Version 1.0 for the 3CR990 Family  
You also need to know the network protocol (for example, IPX, NetBEUI, or TCP/IP).  
Window s 2000 If you are running Windows 2000 on your PC, the first step is to run the  
Preinstallation program on the EtherCD before you install the NIC in your PC.  
To run the Preinstallation program, from the EtherCD Welcome screen  
click NIC Softw are, Drivers and Diagnostics, NIC Preinstallation,  
NIC Installation w ith Window s 2000, and then Done.  
Window s 98/95 If you are running Windows 98 or Windows 95 on your PC, the first step is to  
install the NIC.  
Go to: NIC Installation.  
Window s NT 4.0 If you are running Windows NT 4.0 on your PC, the first step is to install the NIC.  
Go to: NIC Installation.  
Window s NT 3.51 If you are running Windows NT 3.51 on your PC, the first step is to install the NIC.  
Go to: NIC Installation.  
Netw are Server If you are running Netware on a server, the first step is to install the NIC.  
Go to: NIC Installation.  
Minimum System  
Requirements  
Your PC or server must meet the following requirements before you can  
successfully install the 3CR990 NIC:  
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80486 or Pentium processor  
Available bus-mastering PCI slot  
Minimum of 640 K of memory  
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Making a DOS-Bootable Diskette  
13  
Making a  
DOS-Bootable  
Diskette  
For installation and configuration procedures that require you to boot from DOS,  
you cannot successfully use the MS-DOS prompt from within Windows. Perform a  
clean” boot from DOS or use a DOS boot disk.  
NOTE: To use the CD-ROM drive on a PC or server in a DOS environment, the DOS  
drivers for the CD-ROM drive must be installed. Consult the documentation that  
accompanied your CD-ROM drive or your motherboard for information about how  
to install these drivers.  
NOTE: If the PC or server is only running DOS and a CD-ROM drive is not installed,  
you must install the NIC software using installation diskettes. For more information  
about installation diskettes  
To make a DOS-bootable diskette:  
1 Insert a blank, formatted diskette in drive A.  
2 At the DOS prompt, enter:  
sys a:  
System files are copied to the diskette.  
3 Remove the diskette from drive A and attach a label for future reference.  
Diskette Installation  
Installation diskettes are not included with this product. If you do not have  
a CD-ROM drive installed in your PC, you need to locate a system with a  
CD-ROM drive and create installation diskettes from the EtherCD that  
accompanied this product.  
If you have Internet access, you can also download installation disk images from  
the 3Com World Wide Web site.  
Making NIC You will need three blank, formatted diskettes with labels for this operation. Label  
Installation Diskettes the diskettes 1, 2, and 3.  
To make installation diskettes:  
NOTE: Text on the installation diskettes is in English only.  
1 Insert the EtherCD in the CD-ROM drive.  
2 From the main menu, select Installation, and then click Create Installation  
Diskettes.  
3 Click Create, and then follow the prompts.  
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14  
CHAPTER 1: BEFORE YOU BEGIN  
Installing from Diskettes To install NIC software, you will need the NIC, your Windows operating system  
source diskettes, and the NIC installation diskettes.  
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To install NIC software using installation diskettes, see the file DISKETTE.PDF  
on the EtherCD. The path for this file is:  
Installations \ Diskette.pdf  
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To make installation diskettes  
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3CR990 NICS  
2
NIC Overview  
The 3CR990 network interface cards (NICs) represent a new generation of secure,  
intelligent client NICs with an on-board RISC processor (3XP processor). The RISC  
processor is designed to optimize system and network performance. Optimization  
occurs by offloading key networking and security tasks even when running  
bandwidth-intensive applications such as voice, video, imaging, and Internet and  
intranet applications. These NICs connect your PCI-compliant PC to a 10 Mbps or  
100 Mbps Ethernet network and provide advanced features for high performance  
and secure transactions.  
The 3CR990 NICs provide up to 3DES (Data Encryption Standard 168-bit)  
encryption. Encryption processing is handled entirely by the RISC processor  
and the encryption chip that reside on the 3CR990 NICs.  
The onboard encryption chip enables true end-to-end network security (IPSec)  
at the data capacity of the connected network cable (wire speed), without  
sacrificing performance.  
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16  
CHAPTER 2: 3CR990 NICS  
The following figure shows the 3CR990 NIC and the location of its  
major components.  
Encryption chip  
Remote Wake-Up  
(RWU) connector  
TX D  
A
T
A
AC  
T
10  
L
N
K
100  
3XP processor  
3CR990 NICs support up to  
168-bit (3DES) encryption  
NIC Features  
The 3CR990 NICs provide these features for supported IP and IPX environments:  
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Integrated Boot ROM  
Remote Wake-Up  
Desktop Management Interface (DMI)  
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DHCP server prevention  
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Broadcast storm limitation  
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Offline diagnostics  
Integrated Boot ROM Managed PC Boot Agent (MBA) software provides the multiprotocol preboot  
firmware and tools. MBA adds management capabilities to the NIC by enabling  
the PC to boot from a network server, rather than from its local drive. 3CR990  
NICs have an integrated boot ROM already installed on the NIC.  
For information on configuring and using the MBA, see the Managed PC Boot  
Agent (MBA) User Guide located on the EtherCD. Navigate the following path:  
CD ROM drive letter \ Installs \ Mba \ Manual, and then double-click  
3ComGuide.exe to unzip the compressed user guide file.  
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NIC Features  
17  
MBA preboot support allows you to use management applications to perform  
tasks such as:  
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Installing and configuring a new PC that has never been connected to  
the network.  
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Upgrading software.  
Scanning for viruses.  
Performing disaster recovery tasks.  
In addition to firmware, MBA has a complete set of tools, utilities, and pre-OS  
software that enables network administrators to perform tasks such as:  
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Reconfiguring multiple systems at once.  
Backing up hard drives automatically.  
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For more information on the management features supported by 3C990 NICs,  
access the 3Com World Wide Web site  
Go to: http://w w w.3com.com/managedpc.  
Remote Wake-Up Remote Wake-Up provides the ability to remotely power-up a network PC.  
When the PC is in sleep mode and receives a wake-up packet (Magic Packet  
frame) through the LAN, the NIC turns on the power to the PC. To use the  
Remote Wake-Up feature, a desktop management application is also required  
that is able to generate a Magic Packet Remote Wake-Up signal.  
NOTE: The 3CR990 NICs provide a network connection with or without the  
Remote Wake-Up cable installed.  
Your PC or server must be either 2.1 or 2.2 PCI specification-compliant to  
use Remote Wake-Up. A PC that meets the PCI 2.1 specification uses the  
3-pin Remote Wake-Up connector on the PC motherboard. A PC that meets  
the PCI 2.2 specification uses the PCI bus on the motherboard to handle  
Remote Wake-Up. (A 3-pin connector is not provided on the motherboard.)  
Additionally, to support Remote Wake-Up, a PC must have a:  
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BIOS that supports Remote Wake-Up (power management capability)  
5-volt standby power supply unit rated at a minimum of 375 mA  
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If you are unsure whether your PC meets the requirements listed above, refer to  
your PC documentation or contact your PC manufacturer. For more information  
on Remote Wake-Up, including a list of PCs that currently support this feature,  
access the 3Com World Wide Web site  
Go to: http://w w w.3com.com/partners/acpi.  
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18  
CHAPTER 2: 3CR990 NICS  
Desktop Desktop Management Interface (DMI) is a network management standard that  
Management Interface is widely accepted for managing Intel-based computers. The 3Com DMI Agent  
allows any DMI management application to access information such as the NIC  
driver location, version, and size; packets sent statistics; crc receive errors; and  
much more.  
The 3Com DMI Agent consists of a DMI browser with the following components:  
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DMI service layer  
DMI agent  
GUI installer  
NDIS drivers  
DHCP Server Prevention  
This feature prevents the PC from acting like a DHCP server. All receive packets are  
passed through a DHCP filter and are discarded if they are deemed to be destined  
for the DHCP process.  
Broadcast Storm Limitation  
Broadcast throttling is implemented on both the transmit and receive data  
streams. The user can specify a transmit broadcast threshold as a percentage of  
the transmit bandwidth. The adapter monitors each data stream and discards any  
broadcast or multicast packets that exceed this limit.  
To install DMI, on the EtherCD Welcome screen, click NIC Softw are,  
DynamicAccess Technology, and Install 3Com DMI Agent now.  
Offline Diagnostics This product provides offline diagnostics programs for configuring, testing,  
and troubleshooting 3CR990 NICs. The configuration program within  
the DOS diagnostics program is used for a PC running Windows 2000,  
Windows NT 3.51, or DOS. The 3Com NIC diagnostics program (3Com NIC  
Doctor) is a windows-based program used for a PC running Windows 98,  
Windows 95, or Windows NT 4.0.  
Window s 2000  
Offload Features  
Additionally, the 3CR990 NICs support windows 2000 offload features in an  
IP environment. The 3CR990 NIC Windows 2000 offload features are designed  
to enhance the Windows 2000 operating system capabilities by offloading key  
TCP/IP networking and security tasks from the Windows 2000 operating system:  
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IPSec Offload—reduces CPU utilization by allowing the 3XP processor and  
a crypto chip on the NIC to perform data encryption operations.  
TCP Segmentation Offload—reduces CPU utilization by allowing the  
3XP processor on the NIC to perform segmentation of TCP packets  
IP and TCP checksum Offload—reduced CPU utilization by allowing the  
3XP processor on the NIC to perform the checksum calculation of TCP/IP  
and UDP/IP packets  
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802.1P Packet Priority Offload—reduces CPU utilization by allowing the  
3XP processor on the NIC to perform the insertion of the 802.1Q tag  
header into the packet  
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Windows 2000 Offload Features  
19  
Enabling Offloads Windows 2000 provides the capability to individually enable or disable each of the  
four offload features. (The default setting for these features is enabled.)  
NOTE: For users running the Beta 3 version of Microsoft Windows 2000, the  
Offload function must be globally enabled in Windows 2000 before individual  
offload features can be enabled or disabled.  
See the readme.txt file in the root of the EtherCD for the latest information about  
enabling and disabling offload features in the Beta 3 version of Windows 2000.  
To enable or disable individual Offload settings in Windows 2000:  
1 Click the My Netw ork Places desktop icon.  
The Network and Dial-up Connections screen appears.  
2 Click the Local Area Connection icon.  
The Local Area Connection Properties screen appears.  
3 Click Configure.  
The 3Com EtherLink 10/100 NIC with 3XP processor (3CR990-TX-9x)  
screen appears.  
4 Click the Advanced tab.  
5 Select Enable Offloads in the Property list box.  
6 Enter the hex number below for the desired offload state in the Value entry box.  
7 Close all open windows.  
The following table shows the hex values for the offload functions:  
NOTE: The default hex value is F: all offloads enabled.  
Hex Value  
Offload Function Enabled  
Offloads disabled  
IPSec  
Hex Value  
Offload Function Enabled  
802.1P Packet Priority  
802.1P Packet Priority  
IPSec  
0
1
8
9
2
3
TCP Segmentation  
A
B
802.1P Packet Priority  
TCP Segmentation  
802.1P Packet Priority  
TCP Segmentation  
IPSec  
TCP Segmentation  
IPSec  
4
5
IP and TCP Checksum  
C
D
802.1P Packet Priority  
IP and TCP Checksum  
802.1P Packet Priority  
IP and TCP Checksum  
IPSec  
IP and TCP Checksum  
IPSec  
(continued)  
6
IP and TCP Checksum  
TCP Segmentation  
E
802.1P Packet Priority  
IP and TCP Checksum  
TCP Segmentation  
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20  
CHAPTER 2: 3CR990 NICS  
Hex Value  
Offload Function Enabled  
IP and TCP Checksum  
TCP Segmentation  
IPSec  
Hex Value  
Offload Function Enabled  
802.1P Packet Priority  
IP and TCP Checksum  
TCP Segmentation  
IPSec  
7
F
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NIC INSTALLATION  
3
Installing the NIC  
This procedure graphically illustrates how to install the 3CR990 NIC in your PC  
or server.  
CAUTION: Windows 2000 users: If you are running Windows 2000 on your PC  
or server, you must run the Preinstallation program before you install the NIC in  
your system.  
For more information  
Go to: Window s 2000.  
1
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22  
CHAPTER 3: NIC INSTALLATION  
2
PCI  
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Installing the NIC  
23  
3
3A  
Remote Wake-Up Cable  
2.1 PCI specifications–compliant  
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24  
CHAPTER 3: NIC INSTALLATION  
4
5
A
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TX DA  
ACT  
L
10  
N
K
100  
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Installing the NIC  
25  
6
7
The next step is to install the software.  
What do you w ant to do?  
Go to: Window s 2000.  
Go to: Window s 95.  
Go to: Window s NT 4.0.  
Go to: NetWare Drivers.  
If you are installing multiple NICs in:  
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Windows 2000, Windows 9x, or Windows NT  
Go to: Multiple NICs.  
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A NetWare server  
Go to: Multiple NICs.  
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WINDOWS DRIVERS  
4
Window s 2000  
This section describes how to install the network driver and NIC software in a  
PC or server running Windows 2000.  
CAUTION: You must run the Preinstallation program before you install the NIC  
in your PC. If you have already completed the Preinstallation procedure for  
Windows 2000 and installed the NIC, go to step 7 in this procedure.  
To install the software:  
1 Turn the PC power on and insert the EtherCD in the CD-ROM drive.  
The 3Com EtherCD Welcome screen appears.  
If the EtherCD Welcome screen does not appear  
2 Click NIC Softw are.  
The NIC Software screen appears.  
3 Click Drivers and Diagnostics.  
The Drivers and Diagnostics screen appears.  
4 Click NIC Preinstallation.  
5 Click NIC Installation w ith Window s 2000, and then click Done.  
When the Preinstallation program is completed, the message “Preinstallation  
complete” appears.  
6 Exit the EtherCD installation, shut down the system, turn the PC power off,  
install the NIC in the PC, and connect the network cable to the NIC and your  
network port.  
For information about installing the NIC in your PC  
Go to: NIC Installation.  
7 Turn the PC power on.  
The Found New Hardware screen appears, and then the Found New Hardware  
Wizard starts.  
8 Click Next.  
The Install Hardware Device Drivers screen appears.  
9 Select Search for a suitable driver for my device (recommended), and then  
click Next.  
The Locate Driver Files screen appears.  
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28  
CHAPTER 4: WINDOWS DRIVERS  
10 Select the CD-ROM drives option, clear any other checked options, and  
click Next.  
The Driver Files Search Results screen appears.  
Windows finds the driver on the CD.  
11 Click Next.  
Files are copied, and then the message “Windows has finished installing the  
software for this device” appears.  
12 Click Finish.  
The software installation is complete. To verify that the installation was successful  
To change configuration settings  
Window s 98  
This section describes how to install the network driver and NIC software in a PC  
or server running Windows 98.  
Before installing the NIC software:  
I
Make sure that the NIC is installed in the PC and connected to the network.  
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Make sure that you have the Windows 98 installation files. These files may be  
on a CD or diskettes, or they may have been copied to your hard disk when  
Windows 98 was installed on your PC.  
NOTE: If you encounter problems during the installation, see TROUBLE.TXT  
(located in the HELP directory on the EtherCD) for troubleshooting tips.  
To install the software:  
1 Turn the PC power on.  
Windows detects the NIC. The Add New Hardware Wizard starts.  
2 Click Next.  
The Add New Hardware Wizard screen prompts you to select an option.  
3 Select the Search for the best driver for your device (Recommended) option,  
and then click Next.  
The Add New Hardware Wizard screen prompts you for the driver location.  
4 Select the CD-ROM drive option and clear any other check options that  
are selected.  
5 Insert the EtherCD in the CD-ROM drive, and then click Next.  
Windows finds the driver file for the device.  
6 Click Next.  
Files are copied.  
The Insert Disk screen appears, prompting you for the Windows 98 CD-ROM.  
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Windows 95  
29  
7 Click OK.  
The Copying Files dialog box appears.  
8 Remove the EtherCD from the CD-ROM drive, insert the Windows 98 CD, enter  
the path to the CD-ROM drive, and click OK.  
The Add New Hardware Wizard displays a message informing you that Windows  
has finished installing the software.  
9 Click Finish.  
The Systems Settings Change screen appears, prompting you to restart your  
computer.  
10 Click Yes to restart your computer.  
NOTE: You must restart your computer to complete the installation.  
To verify that the installation was successful  
Window s 95  
This section describes how to install the network driver and NIC software in a PC  
or server running Windows 95.  
CAUTION: Do not install a 3CR990 NIC while installing Windows 95 OSR2 using  
the “Custom” option. Install Windows 95 OSR2 first, then install the 3CR990 NIC.  
Before installing the NIC software:  
I
Make sure that the NIC is installed in the PC and connected to the network.  
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Make sure that you have the Windows 95 installation files. These files may be  
on a CD or diskettes, or they may have been copied to your hard disk when  
Windows 95 was installed on your PC.  
NOTE: If you encounter problems during the installation, see W95NDIS.TXT  
and TROUBLE.TXT (located in the HELP directory on the EtherCD) for  
troubleshooting tips.  
To begin the driver installation, turn the PC power on. Windows detects the NIC  
and depending on the version of Windows 95 that you have installed, either the  
New Hardware Found screen appears, or the Update Device Driver Wizard starts.  
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30  
CHAPTER 4: WINDOWS DRIVERS  
New Hardw are Found If the New Hardware Found screen appears, follow this procedure to install the  
NIC driver:  
1 Select the Driver from disk provided by hardw are manufacturer option, and  
then click OK.  
The Install From Disk screen appears.  
2 Insert the EtherCD in the CD-ROM drive, enter the path to the CD-ROM drive, and  
click OK.  
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If networking has already been installed on your PC, go to step 4.  
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If this is the first time that networking is being installed on your PC,  
the Identification tab of the Network screen appears. Go to step 3.  
3 In the specified fields of the Identification tab screen, enter the following  
information, and then click Close.  
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Computer NameIdentifies the PC on the network for other users. This entry  
must be a unique name of 15 characters or fewer, containing no spaces.  
I
WorkgroupIdentifies the group (for example, your department name)  
to which your PC belongs. If your computer is connected to a peer-to-peer  
network, this entry must be exactly the same for all the PCs in your network.  
I
Computer Description—Displays additional details to other users on the  
network about this PC. For example, you could specify that the PC is connected  
to a printer. Filling in this field is optional.  
4 The Insert Disk screen appears, prompting you for the Windows 95 CD-ROM.  
Click OK.  
The Copying Files screen appears.  
5 Do one of the following:  
I
If the Windows 95 files were not copied to your hard drive, remove the  
EtherCD from the CD-ROM drive, insert the Windows 95 CD, enter the path to  
the CD-ROM drive, and then click OK.  
I
If the Windows 95 files were copied to your hard drive, enter the path to the  
directory containing these files, and then click OK.  
Files are copied. The Systems Settings Change screen appears, prompting you to  
restart your computer.  
6 Click Yes.  
NOTE: You must restart your computer to complete the installation.  
The installation is complete. To verify that the installation was successful  
NOTE: After Windows restarts, double-click the Network icon in the Windows  
Control Panel and make sure that the configuration settings are properly set for  
your network environment. Contact your system manager for assistance.  
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Windows 95  
31  
Update Device If the Update Device Driver Wizard starts, follow this procedure to install the  
Driver Wizard NIC driver:  
1 Insert the EtherCD in the CD-ROM drive, and then click Next.  
Windows finds the driver.  
2 Click Finish.  
I
If networking has already been installed on your PC, go to step 4.  
I
If this is the first time that networking is being installed on your PC, the  
Identification tab of the Network screen appears. Go to step 3.  
3 In the specified fields of the Identification tab screen, enter the following  
information, and then click Close.  
I
Computer NameIdentifies the PC on the network for other users. This entry  
must be a unique name of 15 characters or fewer, containing no spaces.  
I
WorkgroupIdentifies the group (for example, your department name)  
to which your PC belongs. If your computer is connected to a peer-to-peer  
network, this entry must be exactly the same for all the PCs in your network.  
I
Computer Description—Displays additional details to other users on  
the network about this PC. For example, you could specify that the PC  
is connected to a printer. Filling in this field is optional.  
4 The Insert Disk screen appears, prompting you for the EtherCD. Click OK.  
The Copying Files screen appears.  
5 Enter the path to the CD-ROM drive, and then click OK.  
Files are copied. The Insert Disk screen appears, prompting you for the  
Windows 95 CD-ROM.  
6 Click OK.  
The Copying Files screen appears.  
7 Do one of the following:  
I
If the Windows 95 files were not copied to your hard drive, remove the  
EtherCD from the CD-ROM drive, insert the Windows 95 CD, enter the path to  
the CD-ROM drive, and then click OK.  
I
If the Windows 95 files were copied to your hard drive, enter the path to the  
directory containing these files, and then click OK.  
Files are copied. The Systems Settings Change screen appears, prompting you to  
restart your computer.  
8 Click Yes.  
NOTE: You must restart your computer to complete the installation.  
The driver installation is complete. To verify that the installation was successful  
NOTE: After Windows restarts, double-click the Network icon in the Windows  
Control Panel and make sure that the configuration settings are properly set for  
your network environment. Contact your system manager for assistance.  
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32  
CHAPTER 4: WINDOWS DRIVERS  
Window s NT 4.0  
This section describes how to install the network driver and NIC software in a PC  
or server running Windows NT 4.0.  
To install the software:  
1 Turn the PC power on.  
2 Right-click the Netw ork Neighborhood icon, then select Properties.  
The Network screen appears.  
3 Select the Adapters tab.  
If networking has not been previously installed on your system, Windows asks you  
if you want to install networking. Click Yes.  
See the WINNT.TXT le (located in the Help directory on the EtherCD) or your  
Windows NT documentation for detailed instructions about installing networking.  
4 Click Add.  
The Select Network Adapter screen appears.  
5 Insert the CD in the CD-ROM drive, and then click Have Disk.  
The Insert Disk screen appears.  
6 Make sure that the correct path to your CD-ROM drive appears in the entry box,  
and then click OK.  
The Select OEM Option screen appears.  
7 Make sure that the correct 3Com NIC name is selected, and then click OK.  
Files are copied. The Network screen appears with the 3Com NIC name listed in  
the Network Adapters list box.  
8 Click Close.  
If the Microsoft TCP/IP Properties screen appears, consult your system  
administrator for further information.  
The Network Settings Change screen appears, prompting you to restart your  
computer.  
9 Click Yes.  
NOTE: You must restart your computer to complete the installation.  
The installation is complete. To verify that the driver was successfully installed  
Window s NT 3.51  
This section describes how to install the network driver and NIC software in a  
PC or server running Windows NT 3.51.  
To install the software:  
1 Make sure that the NIC is installed in your PC and that it is connected to  
the network.  
2 Turn the PC power on.  
3 In the Main window of the Program Manager, double-click the Control Panel  
icon and then the Netw ork icon.  
The Network Settings screen appears.  
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Windows NT 3.51  
33  
4 Click Add Adapter.  
The Add Network Adapter screen appears.  
5 Open the Network Adapter Card list box, and then scroll and select  
<Other> Requires disk from manufacturer.  
6 Click Continue.  
The Insert Disk screen appears.  
7 Insert the EtherCD in the CD-ROM drive, make sure that the correct path to your  
CD-ROM drive appears in the entry box, and then click OK.  
The Select OEM Option screen appears.  
8 Make sure that the 3Com NIC is selected, and then click OK.  
Files are copied.  
The Network Settings screen appears. Make sure that the name of the installed  
NIC appears in the list of installed adapter cards and that it is selected.  
9 Click OK.  
The TCP/IP Configuration screen appears.  
10 Assign an IP address to your PC.  
There are two ways to assign an IP address: automatically or manually. Your  
network administrator will specify which method to use, and if required, provide  
an IP address for you to use.  
I
To obtain an IP address automatically (this method requires an active  
connection to a DHCP server):  
Make sure that the correct NIC name is displayed and selected.  
Select the Enable Automatic DHCP Configuration check box.  
a
b Click Yes to the Windows NT confirmation screen that appears, and then  
click OK.  
The Network Settings Change screen appears, prompting you to restart  
your computer.  
c
Remove the EtherCD from the CD-ROM drive, and then click Restart Now.  
The NIC is installed and TCP/IP is configured.  
The installation is complete. To confirm that the installation was successful  
I
To specify an IP address manually:  
a
Type the IP address, subnet mask address, and default gateway address in their  
respective entry fields.  
b Click OK.  
You are prompted to restart your PC.  
Remove the EtherCD from the CD-ROM drive, and then click Restart Now.  
c
The NIC is installed and TCP/IP is configured. The installation is complete. To  
confirm that the installation was successful  
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34  
CHAPTER 4: WINDOWS DRIVERS  
To change configuration settings  
Verifying Successful  
Installation  
This section describes how to verify that a NIC installation under Windows 2000,  
Windows 98, Windows 95, or Windows NT is successful.  
Follow the instructions appropriate for your operating system.  
Window s 2000 To verify that the NIC is successfully installed:  
1 Right-click the My Computer icon, and then click Properties.  
2 Select the Hardw are tab, and then click Device Manager in the middle panel.  
3 Click the + symbol next to Network Adapters in the list.  
The absence of a red X or a yellow exclamation point (!) next to the name of the  
NIC name confirms successful installation.  
If you encounter problems  
Go to: Troubleshooting.  
Window s 98 and To verify that the NIC is successfully installed:  
Window s 95  
1 Right-click the My Computer icon, and then click Properties.  
The System Properties screen appears.  
2 Select the Device Manager tab.  
3 Double-click Netw ork adapters and make sure that the name of the  
NIC appears.  
The absence of a red X or a yellow exclamation point (!) next to the name of  
the NIC name confirms successful installation.  
If you encounter problems  
Go to: Troubleshooting.  
Window s NT 4.0 To verify that the NIC is successfully installed:  
1 In the Windows task bar, click Start, Programs, Administrative Tools, and  
then Window s NT Diagnostics.  
The Windows NT Diagnostics screen appears.  
2 Select the Resources tab.  
If EL99x appears in the displayed list in the Device column, the driver is  
successfully installed.  
If you encounter problems  
Go to: Troubleshooting.  
3 Click OK to exit.  
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Multiple NICs  
35  
Window s NT 3.51 To verify that the NIC is successfully installed:  
1 Double-click the File Manager icon.  
2 From the Disk menu select Connect Netw ork Drive.  
The presence of network server names confirms successful installation.  
If you cannot connect a network drive, the installation was not successful.  
Go to: Troubleshooting.  
Multiple NICs  
This section describes how to install multiple 3CR990 NICs in a PC running  
Windows 2000, Windows 95, Windows 98, or Windows NT 4.0.  
These procedures ensure that the NICs maintain separate resource assignments  
and are installed free of conflicts.  
CAUTION: You must use these procedures to install multiple 3C990 NICs. Failure  
to follow these procedures may lead to problems requiring you to reinstall your  
operating system.  
Follow the procedure that is appropriate for your operating system.  
Window s 2000 To install multiple NICs:  
1 Turn the PC power on and insert the EtherCD in the CD-ROM drive.  
The 3Com EtherCD Welcome screen appears.  
If the EtherCD Welcome screen does not appear  
2 Click NIC Softw are.  
The NIC Software screen appears.  
3 Click Drivers and Diagnostics.  
The Drivers and Diagnostics screen appears.  
4 Click NIC Preinstallation.  
5 Click NIC Installation w ith Window s 2000, and then Done.  
When the Preinstallation program is completed the message “Preinstallation  
complete” appears.  
6 Click Exit to close the EtherCD navigator. Shut down the system, turn the PC  
power off, physically install all of the NICs in the PC, and then connect network  
cables to the installed NICs and the network ports.  
For information about installing the NIC in your PC  
Go to: NIC Installation.  
7 Turn the PC power on.  
The Found New Hardware screen appears, and then the Found New Hardware  
Wizard starts.  
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36  
CHAPTER 4: WINDOWS DRIVERS  
8 Click Next.  
The Install Hardware Device Drivers screen appears.  
9 Select Search for a suitable driver for my device (recommended), and  
then click Next.  
The Locate Driver Files screen appears.  
10 Select the CD-ROM drives option, clear any other checked options, and  
click Next.  
The Driver Files Search Results screen appears.  
Windows finds the driver on the EtherCD.  
11 Click Next.  
Files are copied, and then the message “Windows has finished installing the  
software for this device” appears.  
12 Click Finish.  
13 Repeat steps 8–12 as each NIC is discovered by Windows.  
Window s 95 and To install multiple NICs:  
Window s 98  
Install the first NIC in your PC and connect it to the network.  
CAUTION: Do not physically install the second NIC in your PC until you complete  
the NIC driver installation for the first NIC, following the steps below.  
1 Turn the PC power on and start Windows.  
2 When Windows detects the NIC and prompts you for the EtherCD, insert the  
EtherCD in the CD-ROM drive, and then click OK.  
3 Follow the prompts on the screen to install the NIC driver and software.  
4 After the NIC driver is installed, reboot the PC.  
5 After the PC reboots, exit Windows and turn the PC power off. Make sure that the  
PC power cord is unplugged.  
6 Install the second NIC in your PC and connect it to the network.  
7 Plug the PC power cord in, turn the PC power on, and then start Windows.  
Windows detects the second NIC. The second NIC uses the same driver and  
software as the first NIC.  
When Windows starts, the second NIC appears under Network adapters in the  
Device Manager.  
8 Repeat the process for each additional NIC to be installed.  
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Multiple NICs  
37  
Window s NT 4.0 To install multiple NICs:  
1 Physically install all of the NICs in your PC and connect each NIC to the network.  
2 Turn the PC power on and start Windows NT.  
3 Double-click the My Computer icon, then the Control Panel icon, and then the  
Netw ork icon.  
The Network screen appears.  
4 Select the Adapters tab, and then click Add.  
The Select Network Adapter screen appears.  
5 Click Have Disk.  
6 Insert the EtherCD in the CD-ROM drive, and then click OK.  
7 Make sure that the correct path to your CD-ROM drive appears in the entry box,  
and then click OK.  
The Select OEM Option screen appears with the name of one of the NICs selected.  
Only one NIC appears on this screen.  
8 Make sure that the correct NIC is selected, and then click OK.  
Files are copied.  
9 Close the Network screen.  
If you are prompted for network information, enter the requested information.  
10 Follow the prompts on the screen to install the NIC driver and software.  
After the NIC driver is installed, restart the PC.  
NOTE: Depending on the manufacturer of your PC, after the PC restarts, you may  
have to repeat steps 3 through 11 for each additional NIC to be installed.  
The NICs are installed and operational.  
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NETWARE DRIVERS  
5
Obtaining NetWare  
Loadable Modules  
Although NetWare Loadable Modules (NLMs) are provided on the EtherCD, you  
can always obtain the most current NLMs from the Novell Web site.  
Go to: http://w w w.support.novell.com.  
NetWare Server  
NLM Name  
NetWare 3.12  
ETHERTSM.NLM  
NBI31X.NLM  
MSM31X.NLM  
NetWare 4.10, 4.11, and 5.0  
ETHERTSM.NLM  
NBI.NLM  
MSM.NLM  
NOTE: 3CR990 NICs do not support NetWare 3.11 and 4.0x servers.  
NetWare Server Driver The NWSERVER directory on the EtherCD contains the network driver file  
(3C99X.LAN), which must be used for servers running NetWare 3.12, 4.10, 4.11,  
or 5.0. NetWare Loadable Modules (NLMs), which are in the same directory, are  
additional required files.  
To obtain the most current NLMs from Novell  
Go to: http://w w w.support.novell.com.  
NOTE: To upgrade the NetWare driver for a NetWare server, you must create  
installation diskettes from the EtherCD that accompanied this product. Use these  
diskettes to install the NetWare server driver.  
For information on how to create installation diskettes  
NetWare 3.12 To upgrade the driver in a NetWare 3.12 server:  
1 Obtain the MSM31X.NLM, ETHERTSM.NLM, and NBI31X.NLM les from Novell  
and copy them to the directory on your hard disk where other NLM les are  
located. This is typically in the sys:system directory. You need a NetWare client  
system to copy the NLM les to the server.  
2 Copy the LAN driver file (3C99x.LAN) to the same directory.  
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40  
CHAPTER 5: NETWARE DRIVERS  
3 Add the following two lines to the AUTOEXEC.NCF file:  
load 3c99x.lan slot=<slot> NAME=<name> FRAME=<frametype>  
bind ipx to <name> net=<number>  
NOTE: If you copy the NLM les to a different directory, you must specify the path  
in the preceding load statement.  
4 Save and exit the file, and then restart the server.  
NetWare 4.10, To upgrade the driver in a NetWare 4.10, 4.11, or 5.0 server:  
4.11, and 5.0  
1 Obtain the MSM.NLM, ETHERTSM.NLM, and NBI.NLM les from Novell and copy  
them to the directory on your hard disk where other NLM les are located. This is  
typically in the sys:system directory. You need a NetWare client system to copy the  
NLM les to the server.  
2 Insert installation diskette 2 in drive A.  
3 At the server prompt, type: load inetcfg, and then press Enter.  
The Internetworking Configuration screen appears.  
4 In the displayed menu, select Boards, and then press Enter.  
5 Press Insert.  
A list of currently installed drivers appears.  
6 Press Insert again.  
The New Driver dialog box appears.  
7 Specify the directory: a:\nwserver\3c99x.lan, and then press Enter.  
An updated list of installed drivers appears.  
8 Select 3C99x, and then press Enter.  
You are prompted to name the NIC.  
9 For example, enter: 3c99x_1, and then press Enter.  
You are prompted for the slot number. For information on how to verify the  
slot number  
10 Enter the slot number, and then press Enter.  
11 Press Esc, Enter (to save), and then Esc.  
The Internetworking Configuration screen appears.  
12 Select Bindings, and then press Enter.  
The configured protocols for installed NICs appears. (This list will be empty if no  
protocols are currently bound to the NIC.)  
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Multiple NICs  
41  
13 Press Insert.  
The Select From the List of Configured Protocols screen appears.  
For NetWare 5.0:  
a
The default To a Netw ork Interface is selected. Press Enter.  
The Select a Configured Network Interface screen appears.  
b Select the board. For example, enter: 3c99x_1, and then press Enter.  
14 When prompted, enter the network number, and then press Enter.  
15 In the Frame Type field, press Enter to display a list of frames, choose a frame, and  
press Enter.  
16 Press Esc.  
You are prompted to save the changes.  
17 Press Enter to save the changes.  
The configured Protocol to Network Interface Bindings screen appears.  
18 Press Esc to Exit.  
The main menu appears.  
I
I
a
NetWare 4.x and earlier: Restart the server.  
NetWare 5.0:  
Select Reinitialize System.  
b Press Enter to reinitialize.  
Press Esc exit from the program.  
c
Multiple NICs  
These sections provide procedures for upgrading drivers for multiple installed NICs  
and installing multiple NICs (new installation) in a NetWare server.  
Upgrading Drivers To upgrade drivers for installed 3Com NICs:  
1 Uninstall the NIC software for all NICs. For more information  
2 Remove all but the first NIC from the server.  
3 Follow the driver installation procedure for a single NIC.  
4 Install the next NIC, and then repeat steps 3 and 4 until all NICs are installed.  
New Installation If you do not have either NetWare Support Pack 6 or NetWare version 4.2  
installed, make sure that all of the NLM les have been copied to the server before  
you start this procedure.  
To install multiple NICs in a Netware 4.0, 4.11, or 5.0 server:  
1 Install all of the NICs in the server.  
2 Follow the installation procedure for a single NIC.  
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42  
CHAPTER 5: NETWARE DRIVERS  
Verifying the  
To verify the PCI slot number that the NIC is installed in:  
PCI Slot Number  
1 Boot the NetWare server with the -na option. (This prevents the AUTOEXEC.NCF  
from loading.)  
Example:  
server -na  
2 Issue the load command for the NIC LAN driver without a slot parameter.  
Example:  
load c:\nwserver\3c99x.lan  
3 NetWare will list the valid slot number(s) for the NIC, depending on how many  
NICs are installed. The values appearing in the list are the slot values that you  
should use.  
Example:  
After you issue the command, a message appears. At the end of the message,  
additional text similar to the following appears:  
Total of 2 3C99x PCI adapter card(s) found. Supported slot values are  
2,3.  
Slot:2  
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IP SECURITY  
6
Overview  
The 3CR990 NICs accelerate IP security (IPSec) data encryption from supported  
operating systems that provide this offload capability. This feature is currently  
available in the Microsoft Windows 2000 operating system.  
IPSec consists of two parts: encryption/decryption and authentication. To send  
or receive encrypted data in a PC running Windows 2000 with a 3CR990 NIC  
installed, you must first create a security policy, and then enable encryption on  
the NIC. The security policy establishes and defines how encrypted network traffic  
between your PC and a specified server occurs.  
Authentication enables the receiver to verify the sender of a packet by adding key  
fields to a packet without altering the packet data content.  
The following table shows the available levels of encryption:  
Encryption Encryption  
Type  
Level  
medium  
high  
Description  
AH  
Authentication only  
Authentication and encryption  
ESP  
Custom  
varies  
This provides encryption and an extra authentication that includes  
the IP header.  
Custom allows you to select options for both AH and ESP, such as  
MD% /SHA-1 and DES/3DES. And you can select the rate at which  
new keys are negotiated.  
Microsoft uses IKE key exchange to renew keys every x seconds  
or y bytes. However, this practice is computationally very high in  
overhead. Some users may set these values low and have frequent  
key updates. Users more concerned with performance will set  
these values higher.  
For more information, see the Microsoft documentation about  
creating IPSec flows.  
Creating a  
Security Policy  
The process you use to create and enable a security policy will depend on your  
network environment requirements. The following is an example of one approach  
to creating a security policy.  
NOTE: You must complete all of the sequences in this section to establish  
and enable a security policy for transmitting and receiving encrypted data over  
the network.  
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44  
CHAPTER 6: IP SECURITY  
Defining the Console This sequence establishes the Console and defines its parameters.  
To define the Console:  
1 In the Windows taskbar, click Start, Programs, Accessories, and then  
Command Prompt.  
2 At the DOS prompt, type MMC and press Enter.  
The Console1 screen appears.  
3 In the menu click Console and then Add/Remove Snap-in.  
The Add/Remove Snap-in screen appears.  
4 Click Add.  
The Add Standalone Snap-in screen appears.  
5 Select IP Security Policy Management, and then click Add.  
The Select which computer this Snap-in will manage screen appears.  
6 Enable the Local computer option.  
7 Click Finish, Close, and then OK.  
Creating the Policy This sequence creates and names the new security policy.  
The Console1and Console Root screen appears with IP Security Policies on Local  
Machine displayed in the list.  
1 In the left pane, click IP Security Policies on Local Machine.  
2 Right-click inside the right pane below the list items.  
3 From the pop-up menu, select Create IP Security Policy.  
The IP Security Policy Wizard Starts.  
4 Click Next.  
The IP Security Policy Name screen appears.  
5 Enter a name for the new security policy that you are creating. You can enter a  
description to help you identify this policy.  
6 Click Next.  
The Requests for Secure Communication screen appears.  
7 Clear the Activate the default response rule check box.  
8 Click Next and then Finish.  
A screen appears with the name of the new security policy in the title bar.  
9 Click Add.  
The Security Rule Wizard starts.  
10 Click Next.  
The Tunnel Endpoint screen appears.  
11 Enable the default option This rule does not specify a tunnel, and then  
click Next.  
The Network Type screen appears.  
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Creating a Security Policy  
45  
12 Enable the default option All netw ork connections, and then click Next.  
The Authentication Methods screen appears.  
13 Enable the Use this string to protect the key exchange (preshared key):  
option, type the appropriate string text in the entry field, and then click Next.  
Creating a Filter This sequence creates a filter for the policy.  
The IP Filter List screen appears.  
1 Click Add.  
A new IP Filter List screen appears.  
2 Enter a name for the filter, and then click Add.  
The IP Filter Wizard starts.  
3 Click Next.  
The IP Traffic Source screen appears.  
4 Click Next.  
The IP Traffic Destination screen appears.  
5 Select A Specic IP Address in the pull-down list.  
The IP Address entry box appears on the IP Traffic Destination screen.  
6 Enter destination IP address, and then click Next.  
The IP Protocol Type screen appears.  
7 Accept the default, and then click Next.  
8 Click Finish to close the IP Filter Wizard.  
9 Click Close to close the IP Filter List screen.  
Binding the Filter This sequence attaches the new filter to the policy.  
The IP Filter List screen appears.  
1 Enable the option for the new filter name and make sure that the new filter name  
is selected.  
2 Click Next.  
Creating the This sequence defines how the filter acts on the policy.  
Filter Action  
The Filter Action screen appears.  
1 Click Add.  
The Filter Action Wizard starts.  
2 Click Next.  
The Filter Action Name screen appears.  
3 Enter a name (for example: 3DES to the Server), and then click Next.  
The Filter Action General Options screen appears.  
4 Accept the default, and then click Next.  
The screen, Communicating with computers that do not support IPsec, appears.  
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46  
CHAPTER 6: IP SECURITY  
5 Accept the default value, and then click Next.  
The IP Traffic Security screen appears.  
6 Select Custom and then click Settings.  
The Custom Security Method Settings screen appears.  
7 Enable the Data integrity and encryption (ESP): check box, and then make the  
appropriate selections in the Integrity and algorithms list boxes.  
8 Click OK, Next, and then Finish.  
Binding the Filter Action This sequence attaches the new filter action to the filter and policy.  
The Filter Action screen appears.  
1 Enable the filter action option and make sure that the filter name is selected. (In  
this example, we used the filter name: 3DES to the Server.  
2 Click Next, Finish, and then Close.  
The newly created policy appears in the right pane of the Console Root\IP Security  
Policies on Local Machine screen.  
3 Exit this screen and, when prompted, save the new policy information. Use a  
meaningful name for future reference.  
You can modify this security policy by double clicking the icon that is created when  
you save the policy in the previous step.  
Enabling Encryption An encryption policy must exist in the Console Root\IP Security Policies on the  
Local Machine screen before you can enable encryption on the 3CR990 NIC.  
To enable encryption:  
1 Right-click the desired policy icon in the right pane of the screen.  
2 Select Assign.  
3 A green plus (+) symbol appears on the policy icon to indicate that encryption is  
toggled on.  
Disabling Encryption An encryption policy must exist in the Console Root\IP Security Policies on the  
Local Machine screen, and be enabled, before you can disable encryption on the  
3CR990 NIC.  
To disable encryption:  
1 Right-click the desired policy icon in the right pane of the screen.  
2 Select Un-assign.  
3 The absence of a green plus (+) symbol on the policy icon indicates that encryption  
is toggled off.  
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UPGRADING DRIVERS  
7
Window s 2000  
To upgrade to the current NIC driver:  
1 Right-click the My Computer icon.  
2 Select Properties on the pop-up menu.  
The System Properties screen appears.  
3 Select the Hardw are tab.  
4 Click Device Manager in the middle panel.  
The Device Manager screen appears.  
5 Click the + symbol next to Network adapters.  
6 Double-click 3Com EtherLink 10/100 PCI NIC w ith 3XP Processor  
(3CR990-TX-9X).  
A screen appears with the name of the NIC in the title bar.  
7 Select the Driver tab, click Update Driver, and follow the instructions as  
they appear.  
Window s 98  
To upgrade to the current NIC driver:  
1 Make sure that the EtherCD is in the CD-ROM drive.  
2 Right-click the My Computer icon, and then select Properties.  
3 Select the Device Manager tab, and then double-click Netw ork adapters.  
4 Select the name of the 3Com NIC, and then click Properties.  
5 Select the Driver tab, and then click Update Driver.  
The Update Device Driver Wizard screen appears.  
6 Click Next.  
The Update Device Driver Wizard screen reappears.  
7 Select the Display a list of all drivers in a specific location, so you can select  
the driver you w ant option, and then click Next.  
The Select Device screen reappears.  
8 Click Have Disk.  
The Install From Disk screen appears.  
9 Make sure that the correct path to the CD-ROM drive appears in the entry box,  
and then click OK.  
The Select Device screen reappears.  
10 Click OK.  
After files are copied and updated, the 3Com EtherLink screen Driver tab reappears.  
The Insert Disk screen appears prompting for the EtherCD.  
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48  
CHAPTER 7: UPGRADING DRIVERS  
11 Click OK.  
12 Make sure that the correct path to the CD-ROM drive appears in the entry box,  
and then click OK.  
The Update Device Driver Wizard screen appears.  
13 Click Next.  
The Insert Disk dialog box appears prompting for the EtherCD.  
14 Click OK.  
15 Make sure that the correct path to the CD-ROM drive appears in the entry box,  
and then click OK.  
The Insert Disk dialog box appears prompting for the Windows 98 CD.  
16 Click OK.  
17 Make sure that the correct path to the CD-ROM drive appears in the entry box,  
and then click OK.  
Files are copied and the Update Device Driver Wizard screen appears.  
18 Click Finish.  
The Systems Settings Change dialog box appears prompting you to restart  
your computer.  
19 Click Yes.  
The NIC driver is installed.  
Window s 95  
You must determine which version of operating system is installed on your PC  
before upgrading a Windows 95 driver.  
Determining the Version To determine which version of Windows 95 is installed on your PC:  
1 Right-click the My Computer icon and click Properties.  
The System Properties window is displayed.  
2 Check the version number on the General screen, under System:  
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If 4.00.950 is displayed  
If 4.00.950B is displayed  
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Window s 95 Version A To upgrade to the current NIC driver in a PC running Windows 95 version A,  
(Build 950) you must remove the old NIC driver software, and then reinstall the current  
driver software.  
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To remove the old NIC driver  
To reinstall current NIC driver software  
Go to: Window s 95.  
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Windows NT 4.0  
49  
Window s 95 OSR2 To upgrade to the current NIC driver in a PC running Windows 95 OSR2:  
1 Make sure that the EtherCD is in the CD-ROM drive.  
2 Right-click the My Computer icon, and then select Properties.  
3 Select the Device Manager tab, and then double-click Netw ork adapters.  
4 Select the name of the 3Com NIC, and then click Properties.  
5 Select the Driver tab, and then click Update Driver.  
The Update Device Driver Wizard screen appears.  
6 Select the No, select driver from list option, and then click Next.  
The Select Device screen appears.  
7 Click Have Disk.  
The Install From Disk screen appears.  
8 Make sure the path to the CD-ROM drive appears in the entry box, and then  
click OK.  
The Select Device screen reappears.  
9 Click OK.  
After files are copied and updated, the 3Com EtherLink screen Driver tab reappears.  
10 Click Close.  
The NIC driver is installed.  
Window s NT 4.0  
To upgrade to the current NIC driver:  
1 Make sure that the EtherCD is in the CD-ROM drive.  
2 Double-click the Netw ork icon.  
The Network screen appears.  
3 Select the Adapters tab.  
The 3Com EtherLink NIC is selected in the Network Adapters list box.  
4 Click Update.  
The Windows NT Setup screen appears.  
5 Enter the path to the CD-ROM drive, and then click Continue.  
Files are copied, and then the Network screen appears.  
6 Click Close.  
More files are copied, and then the Network Settings Change dialog box appears  
prompting you to restart your computer.  
7 Click Yes.  
The NIC driver is installed.  
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CHAPTER 7: UPGRADING DRIVERS  
Window s NT 3.51  
To upgrade to the current NIC driver:  
1 Make sure that the EtherCD is in the CD-ROM drive.  
2 Double-click the Control Panel icon, and then the Netw ork icon.  
The Network Settings screen appears.  
3 Click Update.  
The Windows NT Setup screen appears.  
4 Enter the path to the CD-ROM drive, and then click Continue.  
The Network Settings screen appears.  
5 Click OK.  
Files are copied, and then you are prompted to restart Windows NT.  
6 Click Restart Now.  
The NIC driver is installed.  
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CONFIGURATION  
8
Configuration Options Changing configuration settings can have a substantial effect on your network  
and your PC. Before you change these settings, contact your system administrator.  
The following table shows configurable options, descriptions, default values, and  
available settings.  
Factory  
Netw ork  
Parameter  
Default  
Setting  
Description  
Optional Settings  
NetBoot ROM  
Duplex  
Provides the ability to boot a PC Disabled  
over the network.  
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Disabled  
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Enabled  
Specifies the type of  
duplex mode.  
Auto Select  
Half Duplex  
Full Duplex  
Auto Select  
(See the descriptions following  
this table.)  
Media Type  
Determines the type of media  
your network is using.  
Auto Select  
Not used  
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100BASE-TX (100 Mb/s)  
10BASE-T (10 Mb/s)  
Auto Select  
To automatically determine the  
media type, select Auto Select.  
SMB Bus  
Address  
(Future use)  
Not used  
Remote  
Wakeup  
Provides the ability to power-up Default  
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Disabled  
a network PC remotely  
Setting  
Default Setting  
Custom Setting  
(Remote  
Wake-Up is  
Enabled)  
TCP/IP Keep  
Alive  
Maintains a TCP/IP  
protocol connection  
Disabled  
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Disabled  
Default Setting  
Custom Setting  
Disabled  
Workgroup  
Keep Alive  
Maintains workgroup  
browsing capability  
Disabled  
Default Setting  
Custom Setting  
Definitions Full Duplex—sets the NIC to operate in full-duplex mode, which enables two-way  
traffic to occur. To use this setting, the hub or switch that you are connected to  
must support full-duplex. You must also set the Media Type manually to the  
appropriate setting for your network.  
Half Duplex—sets the NIC to operate in half-duplex mode. To use this setting, you  
must also set the Media Type manually to the appropriate setting for your network.  
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CHAPTER 8: CONFIGURATION  
Auto Select—allows the NIC to connect automatically at the duplex mode of the  
connected hub or switch.  
3CR990 NICs support full-duplex. These NICs automatically run in full-duplex  
mode if the switch that you are connected to supports auto negotiation and  
full-duplex.  
3Com DOS  
Configuration  
Program  
The configuration program within the DOS diagnostics program is used to  
configure a NIC installed in a PC running Windows 2000, Windows NT 3.51,  
or DOS.  
NOTE: To change configuration settings in Windows 2000, you can use either  
the DOS diagnostics program or the Advanced tab (accessible through the  
My Network Places icon).  
NOTE: On the Configuration screen, when you choose the Auto Select setting  
for Media Type, the setting for Duplex is automatically changed to Auto Select.  
Selecting Auto Select for Duplex automatically changes the Media Type setting  
to Auto Select.  
To run the DOS diagnostics program:  
1 Boot to DOS (see note following), and then insert the EtherCD in the  
CD-ROM drive.  
NOTE: For PCs running Windows 2000 or Windows NT 3.51, do not run the  
DOS diagnostics program from the MS-DOS box. Exit Windows, reboot with  
a DOS-bootable diskette, and then run the program.  
If you do not have a DOS-bootable diskette  
2 Enter the following at the DOS prompt:  
d:\3c99xcfg.exe  
If multiple NICs are installed in the PC, select Select NIC on the first screen to  
display a list of installed NICs. Use the arrow keys to select the NIC that you want  
to configure and press Enter.  
3 Use the arrow keys to scroll the list and make a selection. Press Enter.  
4 Continue this procedure for other options. For more information on a specific  
option, select the option and press F1  
NOTE: Press Esc to return to a previous screen. If a secondary window is open,  
press Esc to close the window.  
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3Com NIC Diagnostics Program  
53  
3Com NIC  
Diagnostics Program  
The 3Com NIC diagnostics program (3Com NIC Doctor) is a Windows-based  
program used to troubleshoot and configure NICs installed in PCs running  
Windows 98, Windows 95, or Windows NT 4.0.  
When the Network Connectivity test evaluates the network connection, it is  
possible to receive the message, No packets were received.” This could be  
interpreted by the user as a failure when in some cases the connection can be  
functioning properly.  
For more information  
Starting the 3Com NIC To start the NIC diagnostics program:  
Diagnostics Program  
1 Make sure that the NIC is installed and connected to the network and that the  
network driver is installed.  
2 Click Start in the Windows taskbar.  
3 Select Programs, and then 3Com NIC Utilities.  
4 Click 3Com NIC Doctor.  
The General screen appears.  
5 Select the desired tab.  
Displaying Settings To display the current configuration settings for the NIC:  
1 Start the NIC diagnostics program.  
The General screen appears.  
2 On the General screen, click NIC Details.  
The NIC Details screen appears.  
Each configuration setting is displayed with its current value.  
NOTE: For information about a statistic, click the Help button on the  
Statistics screen.  
3 Click OK to exit this screen.  
Changing Settings To change configuration settings using the 3Com NIC diagnostics program:  
1 Start the NIC diagnostics program.  
The General screen appears.  
2 Select the Configuration tab.  
The NIC Configuration Settings screen appears.  
3 Under Network Parameter, select a setting.  
NOTE: On the Configuration tab, when you choose the Auto Select setting for  
Media Type, the setting for Duplex is automatically changed to Auto Select.  
Selecting Auto Select for Duplex automatically changes the Media Type setting  
to Auto Select.  
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54  
CHAPTER 8: CONFIGURATION  
4 Select a new value from the list of available options in the Set Value list box.  
5 Repeat the process for each setting that you want to change.  
Before clicking OK, you can undo any unsaved configuration changes that you  
make. To undo changes, click Undo Changes.  
To reset the default settings, click Set Factory Defaults. (See the table following  
step 6.)  
6 To save the new settings, click OK.  
The following table shows the factory default settings for network parameter  
default options. For more information about Remote Wake-Up features and  
Alerts, see the WIN2000.TXT le in the Help directory on the EtherCD that  
shipped with this product  
Options for Factory  
Netw ork Parameter  
NetBoot ROM  
Duplex  
Factory Default Setting Default Setting  
Factory Default Settings for Options  
Disabled  
none  
none  
Auto Select  
Auto Select  
none  
none  
Media Type  
none  
none  
SMB Bus Address  
Remote Wakeup  
none  
none  
Default Setting  
Magic Packet  
Link Event  
Wake-On-Error  
Enabled  
Disabled  
Disabled  
Selecting any setting automatically sets this  
option to Enabled.  
Wake-On-Timer  
ARP Replies  
Disabled  
Disabled  
Disabled  
Disabled  
Disabled  
Disabled  
Disabled  
TCP/IP Keep Alive  
Disabled  
DHCP Lease Renewal  
Wake-On-ARP  
Wake-On-Ping  
Respond-To-Ping  
MAC Keep-Alive  
Workgroup Keep Alive Disabled  
Novell Watchdog Replies Disabled  
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TROUBLESHOOTING  
9
Accessing the  
3Com Know ledgeBase  
To access a database of technical information that can help you diagnose and  
solve 3CR990 NIC installation, configuration, and upgrade problems  
Go to: http://w w w.know ledgebase.3com.com.  
Troubleshooting  
the Installation  
Follow these troubleshooting tips if you have trouble installing or configuring your  
NIC, or if the NIC installation fails.  
CAUTION: Before inserting or removing the NIC from the PC, turn the PC power  
off and unplug the power cord.  
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Make sure that the NIC is correctly installed in a PCI slot. Check for specific  
hardware problems, such as broken traces or loose or broken solder  
connections.  
Go to: NIC Installation.  
Inspect all cables and connections. Check the length and rating of the cable.  
Make sure that the cable segment is compliant with the requirements for a  
3CR990 NIC.  
Make sure that you are using the latest BIOS for your PC. If your BIOS has not  
been upgraded in the previous 12 months, contact your PC manufacturer to  
obtain the current version of your BIOS software.  
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Run the NIC diagnostics tests.  
Replace the failed NIC with a working NIC and run the diagnostics tests again,  
using the same option settings as those used on the failed NIC. If the working  
NIC passes all tests, the original NIC is probably defective. For information on  
product repair  
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56  
CHAPTER 9: TROUBLESHOOTING  
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Check the connectors. Examine the cable for obvious signs of damage, wear, or  
crimping. Substitute a known working cable. Check the length and rating of  
the cable. Make sure that the cable complies with 10BASE-T or 100BASE-TX  
recommendations.  
Check whether the NIC software is correctly installed.  
If the problem persists  
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Interpreting the LEDs  
The 3CR990 NICs have light-emitting diodes (LEDs) that can assist with network  
troubleshooting. The following table describes the LED conditions and meanings.  
LED  
State  
Meaning  
10 LNK (link)  
On  
If drivers are installed, the 10BASE-T connection is active.  
If drivers are not installed, the NIC is receiving power.  
Off  
On  
Something is preventing the connection between the NIC and  
the hub or switch.  
100 LNK (link)  
ACT (activity)  
If drivers are installed, the 100BASE-TX connection is active.  
If drivers are not installed, the NIC is receiving power.  
Off  
Something is preventing the connection between the NIC and  
the hub or switch.  
Blinking Network traffic is present.  
Steady  
Off  
Heavy network traffic is present.  
No network traffic is present.  
If a link LED indicates a problem, check the following:  
1 Ensure that your network hub or switch and the cable connected to your NIC  
comply with the specifications appropriate for your network connection.  
2 Ensure that the hub or switch is powered on.  
Running Diagnostics  
Programs  
The 3CR990 NICs use two types of NIC diagnostics programs: a DOS-based  
diagnostics program and a Windows-based diagnostics program.  
NOTE: Before starting any diagnostics program, close all running applications.  
Use the 3Com DOS diagnostics program if you are running any of the following  
operating systems:  
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Windows 2000  
Windows NT 3.51  
DOS  
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Running Diagnostics Programs  
57  
Use the Windows-based 3Com NIC diagnostics program if you are running any of  
the following operating systems:  
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Windows 98  
Windows 95  
Windows NT 4.0  
NOTE: The following sections explain how to start both NIC diagnostics programs.  
However, specific instructions are provided only for using the Windows-based  
3Com NIC diagnostics program.  
3Com DOS To start the 3Com DOS diagnostics program:  
Diagnostics Program  
1 Ensure that the EtherCD is in the CD-ROM drive.  
2 At the DOS prompt, enter the following command:  
\3c990cfg.exe  
NOTE: For PCs running Windows 2000 or Windows NT 3.51, do not run the DOS  
diagnostics program from the MS-DOS box in Windows. Exit Windows, reboot  
with a DOS-bootable diskette, and then run the program.  
For more information about how to make a DOS-bootable diskette  
For more information about the 3Com DOS Diagnostics program  
3Com NIC To start the 3Com Windows-based NIC diagnostics program:  
Diagnostics Program  
1 Make sure that the NIC is installed and connected to the network and the driver  
is installed.  
2 Click Start in the Windows taskbar.  
3 Select Programs, and then 3Com NIC Utilities.  
4 Click 3Com NIC Doctor.  
The 3Com NIC Diagnostics General (tab) screen appears.  
For more information about the 3Com NIC Diagnostics program  
General Tab  
Select the General tab to display the node address, I/O address, and device ID for  
the installed NIC.  
This screen also allows you to show or not show the 3Com icon in the Windows  
system tray and enable Auto Echo, which sets the PC to respond automatically to  
requests from other PCs that run the Remote Wake-Up test.  
Configuration Tab  
Select the Configuration tab to view and modify configuration settings for the  
installed NIC.  
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CHAPTER 9: TROUBLESHOOTING  
Statistics Tab  
Select the Statistics tab to view network traffic statistics about the installed NIC.  
Diagnostics Tab  
Select the Diagnostics tab to access diagnostics tests that you can run on the  
installed NIC.  
Support Tab  
Select the Support tab to access various 3Com customer support resources.  
Flash Update Tab  
Select the Flash Update tab to update firmware for the installed NIC.  
Accessing the 3Com The 3Com NIC Help system is a Windows Help application that includes numerous  
NIC Help System Help topics about 3CR990 NICs.  
NOTE: To access the Help system from within the 3Com NIC diagnostics program,  
click the Help button on any screen.  
To access 3Com NIC Help:  
1 Click Start in the Windows taskbar.  
2 Select Programs and then 3Com NIC Utilities.  
3 Select 3Com NIC Doctor Help.  
The main Help screen appears.  
4 Click Help Topics to display a list of Help topics or click Find to search for a  
Help topic.  
Running NIC  
This section describes diagnostics tests available for 3CR990 NICs.  
Diagnostics Tests  
To verify that the network connection and NIC are functioning correctly, run the  
Network test. Run the NIC test to check the physical components, connectors, and  
circuitry on the NIC.  
Run the Remote Wake-Up test if your PC supports Remote Wake-Up. For more  
information about Remote Wake-Up  
Go to: Remote Wake-Up.  
NOTE: Applications other than the NIC diagnostics tests are not able to access the  
network while diagnostics tests are running.  
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Running NIC Diagnostics Tests  
59  
To run the NIC test, Network test, or Remote Wake-Up test:  
1 Start the 3Com NIC diagnostics program.  
2 Select the Diagnostics tab.  
The Diagnostics screen appears.  
To Run the Netw ork Test Run the Network test to check the NICs connectivity to the network.  
To successfully pass the Network Connectivity test, at least one of the following  
conditions must be met:  
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A Windows client running on the same network. This client must have  
a successfully installed Windows diagnostics program that is currently  
not running.  
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A NetWare server running on the same network.  
A DHCP server running on the same network.  
A DNS server running on the same network with TCP/IP properties configured  
for the DNS server.  
To run the Network test:  
1 Click Run Netw ork Test on the Diagnostics screen.  
The Network Connectivity Test screen appears.  
2 Click Start.  
While the test is running, a progress bar indicates test progress.  
If the test fails:  
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Make sure that the network cable is properly connected to the NIC.  
Make sure that the hub or switch to which the NIC is connected is powered on.  
Make sure that the ACT link LED is on.  
Make sure that the network cable complies with the appropriate length and  
other specifications for the network.  
If the test passes, the NIC is connected to the network and functioning correctly.  
3 Click Close.  
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60  
CHAPTER 9: TROUBLESHOOTING  
To Run the NIC Test Run the NIC test to check the physical components, connectors, and circuitry on  
the NIC.  
To run the NIC test:  
1 Click Run NIC Test on the Diagnostics (tab) screen.  
The NIC Test screen appears.  
2 Click Perform NIC Test.  
While the test is running, a progress bar indicates test progress.  
If the test fails, a message indicates the error type. Click the Help button in the  
error message screen to obtain more information.  
If the test passes, the NIC is functioning correctly.  
3 Click Close.  
To Run the Remote You need at least two PCs on your network that contain a 3Com NIC with  
Wake-Up Test EtherDisk 4.0 (or later) or EtherCD Version 1.0 for the 3CR990 Family software  
to run the Remote Wake-Up test.  
To run the Remote Wake-Up test:  
1 On the first PC, enable Auto Echo:  
a
Open the 3Com NIC diagnostics program and make sure that Auto Echo is  
enabled on the General screen.  
b Close the 3Com NIC diagnostics program.  
Make sure that the PC remains powered on and connected to the network.  
c
2 On the second PC, run the Remote Wake-Up test.  
To run the Remote Wake-Up test on the second PC:  
1 Click Run Remote Wakeup Test on the Diagnostics screen.  
The Remote Wake-Up test screen appears.  
NOTE: If the Run Remote Wakeup Test button is not available, either the NIC  
that is installed in the PC does not support Remote Wake-Up or Magic Packet  
is not enabled.  
2 Click Test Remote Wake Up to verify that another PC exists on the network that  
has the EtherDisk 4.0 (or later) or EtherCD Version 1.0 for the 3CR990 Family  
software and that Auto Echo is enabled on that PC.  
If the test passes, another PC with the Auto Echo feature enabled was detected on  
the network.  
If the test fails, another PC with the Auto Echo feature enabled was not detected  
on the network. You will not be able to run the Remote Wake-Up test (the  
Remote Wake Up Restart button will be unavailable).  
3 Enter the number of seconds in the Seconds Until Wakeup entry box that the PC  
remains shut down until it receives a wake-up packet from the first PC.  
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Viewing Network Statistics  
61  
4 Click Test Remote Wake Up Restart.  
The PC shuts down.  
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If the PC automatically powers on after the number of seconds specified in the  
Seconds Until Wakeup entry box, Remote Wake-Up is functioning correctly.  
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If the PC does not power on, Remote Wake-Up is not functioning.  
View ing Netw ork  
Statistics  
You can monitor network statistics from the 3Com NIC diagnostics program.  
To view statistical information about the network:  
1 Start the 3Com NIC diagnostics program.  
For instructions on how to start the 3Com NIC diagnostics program  
2 Select the Statistics tab.  
The Statistics screen appears.  
The information is updated by the NIC every five seconds.  
For a description of each statistic, click the Help button on the Statistics screen,  
and click the link for the statistics descriptions.  
3 Click OK to exit the NIC diagnostics program.  
Accessing 3Com  
Support Services  
The 3Com NIC diagnostics program provides access to several support services  
such as the 3Com World Wide Web site, BBS information, and customer support  
information databases.  
To access 3Com support services:  
1 Start the 3Com NIC diagnostics program.  
For instructions on how to start the 3Com NIC diagnostics program  
2 Select the Support tab.  
The Support screen appears.  
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Select Diagnostics to open the Diagnostics tab and run NIC tests.  
For instructions on how to run the NIC tests,  
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Click Support Databases to display a Help system containing customer  
support databases about the NIC in these categories:  
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Release notes—Display tips about installing and using the NIC.  
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Frequently asked questions—Display common questions asked by  
customers and answered by 3Com customer support experts.  
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KnowledgeBase topics—Display NIC compatibility topics.  
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CHAPTER 9: TROUBLESHOOTING  
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Click BBS Information to display the 3Com BBS telephone numbers and  
modem speeds.  
Click http://w w w.3com.com to access the 3Com World Wide Web site. You  
need a web browser installed on your PC and you must have an active Internet  
Service Provider (ISP) connection to access the World Wide Web.  
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Click Problem Report to generate a report about a NIC problem. Fill in the  
information as requested. You can then e-mail this report to 3Com.  
3Com Tray Icon  
If the 3Com icon is visible in the Windows system tray, double-click the icon to  
start the 3Com NIC diagnostics program.  
NOTE: If a red circle with a line through it appears over the 3Com icon, there is no  
connection between the NIC and the network.  
To show the 3Com icon in the Windows system tray:  
1 Start the 3Com NIC diagnostics program.  
For instructions on how to start the program  
2 On the General screen, select the Show Icon in System Tray option.  
3 Close the 3Com NIC diagnostics program.  
When you drag your mouse cursor over the 3Com icon, but before you  
double-click the icon, a network statistics box appears, displaying the  
following information:  
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Frames Sent and Received—A count of the number of frames (packets) sent  
and received by the NIC since the last time statistics were reset.  
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Link Speed—The speed (10 Mbps or 100 Mbps) at which the NIC is connected  
to the network.  
The information is updated each time that you move your mouse cursor over the  
3Com icon.  
Troubleshooting  
Remote Wake-Up  
If your PC supports Remote Wake-Up and fails to boot when a wake-up packet is  
sent over the network, perform these troubleshooting steps:  
1 Make sure that the PC meets Remote Wake-Up requirements.  
For information on Remote Wake-Up requirements  
Go to: Remote Wake-Up.  
2 Make sure that you are using the latest driver for the NIC.  
A driver is on the EtherCD that ships with the NIC. Download the latest driver from  
the 3Com World Wide Web site:  
Go to: http://w w w.3com.com/.  
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Troubleshooting a Network Connection  
63  
3 Perform the Remote Wake-Up test.  
For information of how to run this test  
4 Check the BIOS in the PC.  
a
Boot the PC and access the BIOS.  
If you do not know how to access the BIOS, consult the reference manual for  
your PC or contact your PC vendor.  
b Locate the Wake-Up on LAN setting and verify that it is enabled.  
For more troubleshooting tips  
Go to: http://w w w.know ledgebase.3com.com.  
NOTE: For more information on PCI specifications and Remote Wake-Up  
Go to: Remote Wake-Up.  
Remote Wake-Up Cable This procedure applies to 2.1 PCI specification-compliant PCs that support Remote  
Wake-Up using a cable connected to the 3-pin connector on the NIC and the PC  
motherboard.  
1 Turn off the PC power, remove the PC cover, and check the Remote Wake-Up  
cable connection.  
Make sure that the Remote Wake-Up cable is plugged into the NIC and to the PC  
motherboard. Unplug and reconnect the cable to ensure a good connection.  
2 Replace the Remote Wake-Up cable with a known functioning Remote Wake-Up  
cable and perform the Remote Wake-Up test again.  
3 If the previous steps have failed, install a known functioning Remote Wake-Up NIC  
in the PC and connect the Remote Wake-Up cable.  
If Remote Wake-Up works with the new NIC installed, contact your network  
vendor for a replacement NIC.  
If Remote Wake-Up does not work with the new NIC installed, there may be a  
problem with the PC motherboard. Contact your PC vendor.  
For more troubleshooting tips  
Go to: http://w w w.know ledgebase.3com.com.  
Troubleshooting a  
Netw ork Connection  
When working with 10BASE-T or 100BASE-TX cabling, concentrators, and NICs  
from different vendors, it is possible to connect everything but still have no  
network communication.  
To narrow the range of possible causes of common network connection problems:  
1 Determine whether your equipment complies with the 10BASE-T or  
100BASE-TX standard.  
This is particularly important for data concentrators (hubs or repeaters).  
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64  
CHAPTER 9: TROUBLESHOOTING  
2 Connect a straight-through cable from the PC to the hub.  
The hub performs an internal crossover so that the signal can go from TD+ to RD+  
and TD– to RD–. When you look at an RJ-45 connector from the front (that is, the  
opposite side from where the wires enter the connector), pin 1 is identified on the  
right side when the metal contacts are facing up.  
3 Make sure that the TD+ and TD– wires are twisted together, and that the RD+ and  
RD– are twisted together.  
Using wires from opposing pairs can cause signals to be lost.  
Troubleshooting Hubs A crossover cable can be used to identify the type of failure when hub  
performance or connectivity is in question.  
To use a crossover cable:  
1 Connect a file server and a client PC back-to-back with a crossover cable to verify  
that the NIC and network operating system are properly configured.  
2 To make a crossover cable, connect TD+ to RD+ and TD– to RD–.  
The cable performs the crossover that is usually performed by the hub.  
Cabling Pinouts The following illustration compares the cabling pinouts for straight-through and  
crossover cables.  
12345678  
Straight-through  
10BASE-T cable  
Crossover  
10BASE-T cable  
TD+  
TD  
RD+  
TD+  
TD  
RD+  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
1
2
3
4
5
RD 6  
6 RD  
7
8
7
8
If the file server and client PC function together as a small network, then either the  
existing cabling or the hub is failing.  
When a crossover cable is used, the LED on the NIC functions differently than it  
would under normal operating conditions. For example, with a correct crossover  
connection, the LED lights, whereas with a straight-through connection, the LED  
does not light. If you make a crossover cable and the polarity is mismatched (that  
is, TD+ to RD– instead of TD+ to RD+), the LED blinks.  
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SPECIFICATIONS  
A
NIC Specications  
The following table provides environmental, interface, and standards  
information for the EtherLink 10/100 PCI network interface cards with  
3XP processor (3CR990 family).  
Hardw are  
Memory  
128 K external RAM  
Bus interface  
PCI Local Bus Specification, Revision 2.2  
32-bit bus  
PCI master  
Dimensions  
Supports bus master scatter-gather DMAs.  
Length:5.24 in/13.31 cm  
Width: 3.35 in/8.51 cm  
Power requirement +5 V ±5% operating 1.26A maximum for normal operation (375 mA for  
low power mode)  
Netw ork Interface  
10 Mbps Ethernet  
10BASE-T  
Ethernet IEEE 802.3 industry standard for a 10 MBPS baseband  
CSMA/CD local area network  
100 Mbps Ethernet Ethernet IEEE 802.3u industry standard for a 100 MBPS baseband  
100BASE-TX  
CSMA/CD local area network  
Environment  
Operating  
32˚ to 158˚F (0˚ to 70˚C)  
temperature  
Storage  
–22˚ to 194˚F (–30˚ to 90˚C)  
temperature  
Operating humidity 10 to 90% noncondensing  
Storage humidity  
Altitude  
10 to 90% noncondensing  
–984 ft to 9,840 ft (–300 to 3,000 m)  
Standards Conformance  
IEEE 802.3x full-duplex, auto-negotiation, and flow control  
IEEE 802.1p (General Attribute Registration protocol) for multicast addresses  
Microsoft PC98  
PCI 2.1 and 2.2  
DMI 2.0 and ACPI  
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66  
APPENDIX A: SPECIFICATIONS  
Netw ork  
The following table provides network connection criteria for the 3CR990 NICs.  
Connection Criteria  
Netw ork Cable  
Connector  
Maximum  
NIC  
Cable  
Transceiver Netw ork Segment Speed  
Media Type  
3CR990-TX-9X Category 3, 4, or 5  
unshielded twisted-pair  
RJ-45  
On-board  
328 ft/100 m  
10/100 10BASE-T  
Mbps  
100BASE-TX  
Netw ork Cable  
This section provides information about various network cable standards and  
descriptions of those standards for EtherLink 10/100 PCI NICs.  
Cabling Requirements The cable type, quality, distance, and connectors must comply with the  
Electronic Industries Association/Telecommunications Industries Association  
(EIA/TIA) 568 Commercial Building Wiring Standard and the Technical Services  
Bulletin TSB38 standards.  
Tw isted-Pair Cable Twisted-pair cable consists of copper wires surrounded by an insulator. Two wires  
are twisted together (the twisting prevents interference problems) to form a pair,  
and the pair forms a circuit that can transmit data. A cable is a bundle of one or  
more twisted pairs surrounded by an insulator.  
Unshielded twisted pair (UTP) is the most commonly used type of twisted-pair  
cable. Shielded twisted pair (STP) provides protection against crosstalk.  
Twisted-pair cable is now commonly used in Ethernet, Fast Ethernet, and  
other network topologies.  
Unshielded Tw isted-Pair The following table shows the five categories of unshielded twisted-pair cable as  
Cable Categories defined by the EIA/TIA.  
Category  
Use  
1
2
3
Traditional telephone cable.  
Data transmissions up to 4 MHz.  
Voice and data transmission up to 25 MHz. The cable typically has four pairs  
of wires. Category 3 is the most common type of installed cable found in  
older corporate wiring schemes.  
4
5
Voice and data transmission up to 33 MHz. The cable normally has four pairs  
of wire. This grade of UTP is not common.  
Voice and data transmission up to 125 MHz. The cable normally has four pairs  
of copper wire and three twists per foot. Category 5 UTP is the most popular  
cable used in new installations.  
10BASE-T Description 10BASE-T is the Institute of Electrical and Electronics Engineers (IEEE) 802.3  
standard for Ethernet signaling over unshielded twisted-pair wire at 10Mbps.  
Ethernet, as the most widely used network protocol, uses 10BASE-T as its primary  
cabling scheme. Ethernet characteristics include:  
I
I
I
A data rate of 10 Mbps  
A broadcast architecture  
A specific media-access control (MAC) scheme  
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Network Cable  
67  
The 10BASE-T name indicates a signaling speed of 10 Mbps and twisted-pair  
wiring. Base stands for baseband, which denotes a technique for transmitting  
signals as direct-current pulses rather than modulating them onto separate  
carrier frequencies.  
A wiring topology using 10BASE-T specifies a wiring hub, cable arranged in a star  
configuration, and unshielded twisted-pair cable. Each node has a separate cable  
run that must not exceed 328 ft. (100 meters) from the node to the hub.  
100BASE-TX Description 100BASE-TX is the IEEE 802.3u standard for Fast Ethernet signaling over  
Category 5 UTP or STP wire at 100Mbps.  
Based on an extension to the IEEE 802.3 Ethernet specification, Fast Ethernet  
characteristics include:  
I
I
I
A data rate of 100 Mbps  
A broadcast architecture  
A specific media-access control (MAC) scheme  
A wiring topology using 100BASE-TX specifies a wiring hub, cable arranged in a  
star configuration, and Category 5 UTP or STP wiring. Each node has a separate  
cable run that must not exceed 328 ft. (100 meters) from the node to the hub.  
RJ-45 Connector Pin The following figure shows the pin layout for the RJ-45 connector socket on the  
Assignments NIC backplate.  
TX D  
A
T
A
AC  
T
1 TD+  
_
3 RD+  
4
10  
L
N
K
2 TD  
100  
5
_
6 RD  
7
8
1 2 3 4 5 6 7 8  
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68  
APPENDIX A: SPECIFICATIONS  
Flow Control  
The 3CR990 NICs utilize flow control technology to throttle the incoming  
data packet stream and prevent the loss of packets. IEEE 803.2x flow control  
prevents the input buffers of a device from overflowing. By using pause frames  
to communicate buffer status between linked transmitting and receiving devices  
(transmitters and receivers). A receiver sends a pause frame to tell a transmitter to  
stop the transmission of data frames for a specified period, allowing the receivers  
input port buffers to empty before receiving new packets.  
Pause Frames When a transmitter receives pause frames, it suspends transmission for the  
specified period. When the receivers input buffers can store packets again, it can  
either send another pause frame to tell the transmitter to resume transmission, or  
wait for transmission to resume at the end of the specified period.  
With asymmetric flow control, only one of two linked devices can receive pause  
frames. With symmetric flow control, both linked devices can send and receive  
pause frames.  
Link Negotiation Related to flow control is the auto-negotiation capability, in which linked devices  
advertise their flow control capabilities and automatically select the best common  
mode of communication.  
Rare cases (for example, linking to a device that does not support  
auto-negotiation) may require that auto-negotiation be disabled on a port,  
thereby enabling forced link on that port. When forced link is enabled, linked  
devices must have matching flow control capabilities. For example, a port that  
is set for forced link and reception flow control can connect successfully only  
with a port that is set for forced link and transmission flow control.  
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TECHNICAL SUPPORT  
B
Register this Product  
The United States government places registration requirements on using  
data encryption products. To obtain customer support for 3CR990 NICs, you  
are required to register your NIC product with 3Com. You can register this  
product electronically or by U.S. mail. For more information about how to  
register this product  
Online Technical  
Services  
This information is correct at the time of publication. For the very latest, 3Com  
recommends that you access the 3Com Corporation World Wide Web site.  
3Com offers worldwide product support 24 hours a day, 7 days a week, through  
the following online systems:  
I
I
I
I
World Wide Web site  
3Com FTP site  
3Com Bulletin Board Service (3Com BBS)  
SM  
3ComFacts automated fax service  
World Wide Web Site Access the latest networking information on the 3Com Corporation World Wide  
Web site.  
Go to: http://know ledgebase.3com.com.  
This service provides access to online support information such as technical  
documentation and software library, as well as support options ranging from  
technical education to maintenance and professional services.  
3Com FTP Site Download drivers, patches, software, and MIBs across the Internet from the  
3Com public FTP site. This service is available 24 hours a day, 7 days a week.  
To connect to the 3Com FTP site, enter the following information into your  
FTP client:  
I
I
I
Hostname: ftp.3com.com (or 192.156.136.12)  
Username: anonymous  
Password: <your Internet e-mail address>  
NOTE: A user name and password are not needed with Web browser software  
such as Netscape Navigator or Internet Explorer  
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70  
APPENDIX B: TECHNICAL SUPPORT  
3Com Bulletin The 3Com BBS contains patches, software, and drivers for 3Com products. This  
Board Service service is available through analog modem or digital modem (ISDN) 24 hours a  
day, 7 days a week.  
Access by To reach the service by modem, set your modem to 8 data bits, no parity, and  
Analog Modem 1 stop bit. Call the telephone number nearest you:  
COUNTRY  
Australia  
Brazil  
DATA RATE  
TELEPHONE NUMBER  
61 2 9955 2073  
55 11 5181 9666  
33 1 6986 6954  
4989 62732 188  
852 2537 5601  
39 2 27300680  
81 3 3345 7266  
52 5 520 7835  
Up to 14,400 bps  
Up to 14,400 bps  
Up to 14,400 bps  
Up to 28,800 bps  
Up to 14,400 bps  
Up to 14,400 bps  
Up to 14,400 bps  
Up to 28,800 bps  
Up to 14,400 bps  
Up to 14,400 bps  
Up to 28,800 bps  
Up to 53,333 bps  
France  
Germany  
Hong Kong  
Italy  
Japan  
Mexico  
P.R. of China  
Taiwan, R.O.C.  
U.K.  
86 10 684 92351  
886 2 377 5840  
44 1442 438278  
1 847 262 6000  
U.S.A.  
Access by ISDN users can dial in to the 3Com BBS using a digital modem for fast access up to  
Digital Modem 64 Kbps. To access the 3Com BBS using ISDN, use the following number:  
1 847 262 6000  
3ComFacts The 3ComFacts automated fax service provides technical articles, diagrams, and  
Automated Fax Service troubleshooting instructions on 3Com products 24 hours a day, 7 days a week.  
Call 3ComFacts using your Touch-Tone telephone:  
1 408 727 7021  
Support from Your  
Netw ork Supplier  
If additional assistance is required, contact your network supplier. Many suppliers  
are authorized 3Com service partners who are qualified to provide a variety of  
services, including network planning, installation, hardware maintenance,  
application training, and support services.  
When you contact your network supplier for assistance, have the following  
information ready:  
I
I
I
I
Product model name, part number, and serial number  
A list of system hardware and software, including revision levels  
Diagnostic error messages  
Details about recent configuration changes, if applicable  
If you are unable to contact your network supplier, see the following section on  
how to contact 3Com.  
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Support from 3Com  
71  
Support from 3Com  
If you are unable to obtain assistance from the 3Com online technical resources or  
from your network supplier, please call the 3Com technical telephone support  
phone number at the location nearest you.  
When you contact 3Com for assistance, have the following information ready:  
I
I
I
I
Product model name, part number, and serial number  
A list of system hardware and software, including revision levels  
Diagnostic error messages  
Details about recent configuration changes, if applicable  
The following table provides a list of worldwide technical telephone  
support numbers:  
Country  
Telephone Number  
ASIA PACIFIC RIM  
Australia  
Hong Kong  
India  
Indonesia  
Japan  
Malaysia  
New Zealand  
Pakistan  
Philippines  
P.R. of China  
1 800 678 515  
800 933 486  
61 2 9937 5085  
001 800 61 009  
0031 61 6439  
1800 801 777  
0800 446 398  
61 2 9937 5085  
1235 61 266 2602  
10800 61 00137  
or  
021 6350 1590  
800 6161 463  
Singapore  
S. Korea  
From anywhere in S. Korea: 82 2 3455 6455  
Seoul:  
Taiwan, R.O.C.  
Thailand  
00798 611 261  
0080 611 261  
001 800 611 2000  
EUROPE  
From anywhere in Europe,  
phone:  
fax:  
+31 (0)30 6029900  
+31 (0)30 6029999  
From the following European countries, you may use the  
toll-free numbers:  
Austria  
06 607468  
Belgium  
Denmark  
Finland  
0800 71429  
800 17309  
0800 113153  
0800 917959  
0130 821502  
00800 12813  
1 800 553117  
177 3103794  
1678 79489  
0800 0227788  
800 11376  
0800 3111206  
05 05313416  
0800 995014  
900 983125  
020 795482  
0800 55 3072  
0800 966197  
France  
Germany  
Hungary  
Ireland  
Israel  
Italy  
Netherlands  
Norway  
Poland  
Portugal  
South Africa  
Spain  
Sweden  
Switzerland  
U.K.  
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72  
APPENDIX B: TECHNICAL SUPPORT  
Country  
Telephone Number  
LATIN AMERICA  
Argentina  
Brazil  
AT&T +800 666 5065  
0800 13 3266  
Chile  
Colombia  
Mexico  
1230 020 0645  
98012 2127  
01 800 CARE (01 800  
2273)  
Peru  
Puerto Rico  
Venezuela  
AT&T +800 666 5065  
800 666 5065  
AT&T +800 666 5065  
NORTH AMERICA  
1 800 NET 3Com  
(1 800 638 3266)  
Returning Products  
for Repair  
Before you send a product directly to 3Com for repair, you must first obtain a  
Return Materials Authorization (RMA) number. Products sent to 3Com without  
RMA numbers will be returned to the sender unopened, at the senders expense.  
To obtain an RMA number, call or fax:  
Country  
Telephone Number  
65 543 6500  
Fax Number  
Asia, Pacific Rim  
65 543 6348  
Europe, South Africa, and  
Middle East  
+ 44 1442 435860  
+ 44 1442 435718  
From the following European countries, you may call the toll-free numbers; select  
option 2 and then option 2:  
Austria  
06 607468  
Belgium  
Denmark  
Finland  
0800 71429  
800 17309  
0800 113153  
0800 917959  
0130 821502  
00800 12813  
1800553117  
177 3103794  
1678 79489  
0800 0227788  
800 11376  
00800 3111206  
05 05313416  
0800 995014  
900 983125  
020 795482  
0800 55 3072  
0800 966197  
France  
Germany  
Hungary  
Ireland  
Israel  
Italy  
Netherlands  
Norway  
Poland  
Portugal  
South Africa  
Spain  
Sweden  
Switzerland  
U.K.  
Latin America  
1 408 326 2927  
1 408 326 3355  
1 408 326 7120  
U.S.A. and Canada  
1 800 NET 3Com  
(1 800 638 3266)  
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SUPPORTED DRIVERS  
C
Additional Drivers  
Text file names and driver names for some of the other drivers supported by  
3CR990 NICs appear in the following table. The text files are included in the HELP  
directory on the EtherCD.  
NOTE: DOS drivers are not supported for 3CR990 NICs. However, they are  
provided on the EtherCD to accommodate those environments requiring  
over-the-network installations.  
Netw ork Operating System  
Windows 98  
Text File Name  
WIN98.TXT  
Netw ork Driver Name  
EL99XND5.SYS  
EL99XND4.SYS  
EL99XND3.SYS  
EL99XND4.SYS  
EL99XND3.SYS  
3C99X.LAN  
Windows 95 OSR2  
W95NDIS.TXT  
W95NDIS.TXT  
WINNT.TXT  
Windows 95 Build 950  
Windows NT 4.0  
Windows NT 3.51  
WINNT.TXT  
NetWare 3.12, 4.1x, and 5.0 Servers  
NETWARE.TXT  
For a list of additional supported network drivers and instructions on how to install  
them, access the 3Com World Wide Web site.  
Go to: http://w w w.support.3com.com/softw are.  
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UNINSTALLING NIC SOFTWARE  
D
Window s 2000  
Follow this procedure to uninstall the NIC software in a PC running  
Windows 2000:  
1 Right-click the My Computer icon.  
2 Select Properties on the pop-up menu.  
The System Properties screen appears.  
3 Select the Hardw are tab.  
4 Click Device Manager in the middle panel.  
The Device Manager screen appears.  
5 Click the + symbol next to Network adapters.  
6 Double-click 3Com EtherLink 10/100 PCI NIC w ith 3XP Processor  
(3CR990-TX-9X).  
A screen with the name of the NIC in the title bar appears.  
7 Select the Driver tab, and then click Uninstall.  
The Confirm Device Removal screen appears.  
8 Click OK.  
The Device Manager screen appears.  
9 Close all open windows, exit Windows, shut down the system, turn the PC power  
off, and remove the NIC from the PC.  
Window s 98 and  
Window s 95  
Follow this procedure to uninstall the NIC software in a PC running Windows 98  
or Windows 95:  
1 Double-click the My Computer icon, the Control Panel icon, and then the  
Netw ork icon.  
The Network window appears, displaying the Configuration screen.  
2 Select the name of the NIC in the installed components list, click Remove, and  
then click OK.  
The NIC driver and diagnostics software are removed from the PC.  
Windows prompts you to restart the computer.  
I
I
If you are physically removing the NIC from the PC, click No. Do not restart the  
PC until you shut down the system, turn the power off, and remove the NIC  
from the PC.  
If you are reinstalling the NIC software, click Yes to restart the PC.  
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76  
APPENDIX D: UNINSTALLING NIC SOFTWARE  
Window s NT 4.0  
Follow this procedure to uninstall the NIC software in a PC running  
Windows NT 4.0:  
1 Double-click the My Computer icon, the Control Panel icon, and then the  
Netw ork icon.  
The Network screen appears.  
2 Click the Adapters tab.  
3 Select the name of the NIC in the Network Adapters box, and then click Remove.  
4 Click Yes to confirm the removal.  
5 Click Close to close the Network screen.  
Windows prompts you to restart the computer.  
I
I
If you are physically removing the NIC from the PC, click No. Do not restart the  
PC until you shut down the system, turn the power off, and remove the NIC  
from the PC.  
If you are reinstalling the NIC software, click Yes to restart the PC.  
Window s NT 3.51  
To uninstall the NIC software in a PC running Windows NT 3.51:  
1 In the Main Program window, double-click the Control Panel icon, and then the  
Netw ork icon.  
The Network Settings screen appears.  
2 In the Installed Adapter Cards panel, select the name of the installed NIC and  
click Remove.  
A warning message appears.  
3 Click Yes to confirm the removal.  
The Network Settings screen reappears. The NIC no longer appears in the Installed  
Adapters panel.  
4 Click OK.  
The NIC driver and diagnostics software are removed from the PC.  
Windows prompts you to restart the computer.  
I
I
If you are physically removing the NIC from the PC, click No. Do not restart the  
PC until you shut down the system, turn the power off, and remove the NIC  
from the PC.  
If you are reinstalling the NIC software, click Yes to restart the PC.  
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MBA BOOT ROM  
E
Enabling or Disabling  
the Boot ROM Setting  
The default boot ROM (factory) setting on the NIC is Disabled. This setting can  
be changed through the 3Com NIC diagnostics program.  
NOTE: For detailed information on using, configuring, and troubleshooting the  
MBA boot ROM, see the documentation for MBA on the EtherCD that shipped  
with this product.  
To enable or disable the NIC boot ROM setting using the 3Com NIC  
diagnostics program:  
1 Start the 3Com NIC diagnostics program.  
For instructions on how to start the Windows-based NIC diagnostics program  
2 Click the Configuration tab.  
The Configuration screen appears.  
3 Under Network Parameter, select Boot PROM.  
4 Open the Set Value list box and select Enabled to enable the boot ROM or  
Disabled to disable the boot ROM.  
5 Click OK.  
Booting w ith the  
MBA Boot ROM  
The boot process for the MBA boot ROM varies depending on the type of PC  
you have (BBS BIOS-compatible or non-BBS BIOS-compatible).  
If your PC was purchased recently, it may be BBS (BIOS Boot Specification)  
BIOS-compatible. The BBS determines how the system BIOS identifies boot devices  
in a PC (such as a CD-ROM drive, a hard drive, or a floppy drive), allows the user  
to select the boot order of these devices, and then attempts to boot from each  
device sequentially.  
Refer to your PC documentation if you do not know which type of PC you have.  
BBS BIOS-Compatible PCs To enable a BBS BIOS-compatible PC to boot from the network using the MBA  
boot ROM:  
1 Make sure that the boot ROM setting for the NIC is Enabled.  
For instructions  
2 Manually set the MBA as the first boot device in the BIOS for your PC.  
Refer to your PC documentation for instructions on accessing and configuring  
the BIOS.  
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78  
APPENDIX E: MBA BOOT ROM  
3 Reboot the PC.  
The MBA attempts to boot from the network using the default protocol  
TCP/IP DHCP.  
To change the default protocol or any other MBA configurations, press Ctrl+Alt+B  
when the following message appears:  
Initializing MBA. Press Ctrl+Alt+B to configure...  
If the network boot fails, the following message appears:  
Network boot aborted, press any key to continue  
The BIOS continues to the next device in the boot order (for example, the local  
hard drive).  
NOTE: To cancel the network boot on a BBS BIOS-compatible PC, press Esc  
anytime during the network boot process.  
Non-BBS To enable a non-BBS BIOS-compatible PC to boot from the network using the  
BIOS-Compatible PCs MBA boot ROM:  
1 Make sure that the NICs boot ROM setting is Enabled.  
For instructions  
2 Change the MBA’s default boot setting from Local to Network.  
To change the default boot setting or any other MBA configurations, use the  
MBACFG utility located on the MBA utility diskette included with your NIC or press  
Ctrl+Alt+B when the following message appears:  
Initializing MBA. Press Ctrl+Alt+B to configure...  
NOTE: For more information on using, configuring, and troubleshooting the  
MBA boot ROM, see the documentation that came with MBA on the EtherCD.  
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DYNAMICACCESS TECHNOLOGY  
F
DynamicAccess  
Features  
DynamicAccess® technology is an advanced network driver that improves  
performance, management, and control of your network. DynamicAccess  
technology is copied to your hard drive, but not installed, when you install  
the NIC software.  
DynamicAccess technology adds intelligence to the NIC by integrating the  
following features:  
I
Distributed RMON (dRMON)—Enables full RMON reporting on all network  
segments, including switched networks, without needing to place dedicated  
RMON probes throughout the network  
I
I
I
Traffic Prioritization—Ensures that business-critical and delay-sensitive traffic  
(such as multimedia applications) has priority over normal data  
Fast IP—Eliminates router bottlenecks and improves performance in  
switched networks  
Efficient multicast control—prevents flooding of switched networks by  
multicast applications such as video training, stock quotes, or online news  
For detailed information about DynamicAccess technology, access the  
3Com World Wide Web site.  
Go to: http://w w w.3com.com/dynamicaccess.  
Client PC  
Requirements  
DynamicAccess technology can only be installed on a PC running Windows 2000,  
Windows 95, Windows 98, Windows NT 4.0, or Windows NT 3.51.  
CAUTION: If you plan to install DynamicAccess technology on a multiprocessor PC  
running Windows NT 4.0, Service Pack 4, you must first download and install the  
appropriate Microsoft patch.  
Go to: http://w w w.3com.com/dynamicaccess/hotfixes.  
Failure to install the patch will result in system failure.  
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80  
APPENDIX F: DYNAMICACCESS TECHNOLOGY  
The minimum client requirements and recommended Microsoft Service Packs (if  
any) for DynamicAccess technology are listed in the following table.  
Operating  
System  
Recommended Microsoft  
Service Pack  
PC Requirements  
Windows 2000  
Windows 95  
Windows 98  
486/76 MHz CPU  
None required  
16 MB RAM (32 MB recommended)  
5 MB available hard drive space  
486/76 MHz CPU  
Windows 95 OSR2 or Service  
Pack 1  
16 MB RAM (32 MB recommended)  
5 MB available hard drive space  
486/76 MHz CPU  
Service Pack 1  
Service Pack 4  
Service Pack 5  
16 MB RAM (32 MB recommended)  
5 MB available hard drive space  
Windows NT 4.0 Pentium/100 MHz CPU  
32 MB RAM  
5 MB available hard drive space  
Windows NT 3.51 Pentium/100 MHz CPU  
32 MB RAM  
5 MB available hard drive space  
Installing  
DynamicAccess  
Technology  
DynamicAccess technology is copied to your hard drive, but not installed, when  
you install the NIC software.  
To install DynamicAccess technology:  
1 Make sure that the NIC and the NIC software are installed on your PC.  
To confirm the NIC installation  
CAUTION: If you have a multiprocessor PC that is running Windows NT 4.0,  
Service Pack 4, download and install the appropriate Microsoft patch before  
beginning the installation. Failure to install the patch will result in system failure.  
To download this patch. To download this patch  
Go to: http://w w w.3com.com/dynamicaccess/hotfixes.  
2 Start Windows.  
3 Insert the EtherCD in the CD-ROM drive.  
4 When the EtherCD Welcome screen appears, select NIC Softw are,  
®
DynamicAccess Technology, and then Install DynamicAccess® LAN Agent  
Version 2.0 now.  
DynamicAccess technology is installed. To verify that the installation was successful  
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Verifying Successful Installation  
81  
If the EtherCD Welcome screen is not displayed, follow these steps:  
1 Double-click the DA15.EXE file on your hard drive.  
The DA15.EXE le is automatically copied to your hard drive during the NIC driver  
installation into the following directory:  
I
I
I
Windows 95/98 — C:\WINDOWS\SYSTEM  
Windows NT 4.0 — C:\WINNT\SYSTEM32  
Windows NT 3.51 — C:\WINNT35\SYSTEM32  
The file is expanded and the DynamicAccess technology is installed on your PC.  
2 Restart the PC.  
NOTE: You must restart your PC to complete the installation.  
DynamicAccess technology is installed. To verify that the installation  
was successful,  
Verifying Successful  
Installation  
After DynamicAccess technology is installed, the following changes are visible in  
the Windows Network dialog box:  
I
For each physical NIC installed in the PC, a virtual NIC entry appears in the list  
of network adapters.  
All protocols are re-bound to the virtual NIC. The bindings to the physical NIC  
are still intact.  
I
I
A 3Com DynamicAccess technology entry appears as a protocol.  
A 3Com DynamicAccess technology icon in installed in the Windows  
Control Panel.  
Configuring  
DynamicAccess  
Technology  
Contact your system administrator before using DynamicAccess technology  
at your site.  
NOTE: DynamicAccess technology configuration instructions are intended for  
network administrators who have experience installing software and using  
management tools for an Ethernet network.  
These instructions are for configuring DynamicAccess technology on a local PC.  
You can obtain the complete configuration instruction set by expanding the  
downloadable file that contains the DynamicAccess technology software.  
Go to: http://w w w.3com.com/dynamicaccess.  
NOTE: You need a Web browser to view the complete configuration instruction  
set. You do not need to reinstall the software.  
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82  
APPENDIX F: DYNAMICACCESS TECHNOLOGY  
Follow this procedure to configure DynamicAccess technology on a local PC:  
1 Double-click the 3Com DynamicAccess icon in the Windows Control Panel.  
The Traffic Prioritization tab of the DynamicAccess Software Setup screen appears.  
2 Select the tab containing the information that you want to configure.  
I
Traffic Prioritization—Allows you to prioritize applications, which can  
ease bottlenecks in your network and allow critical applications to take  
network precedence.  
I
I
Fast IP—Allows you to enable and configure Fast IP.  
Administration—Allows you to set DynamicAccess technology control panel  
access, set VLAN options, enable efficient multicast control, and enable the  
prioritizing of multicast traffic.  
Removing  
DynamicAccess  
Technology  
To remove DynamicAccess technology from your PC, follow the instructions  
appropriate for your operating system.  
NOTE: For specific instructions on configuring any of the DynamicAccess  
technology options, click Help on the 3Com DynamicAccess Technology screen  
or access the 3Com World Wide Web site:  
http://w w w.3com.com/dynamicaccess.  
NOTE: Contact your system administrator before you remove DynamicAccess  
technology from your PC.  
Window s 95/98 If the 3Com DynamicAccess Control Panel Administration utility is set to Read  
Only, you cannot remove the DynamicAccess technology. You must change the  
access to Read/Write and then remove DynamicAccess technology.  
NOTE: Your network connections will break if you select the DA Transport  
protocols from either the virtual NIC or the physical NIC and click Remove.  
Follow this procedure to remove DynamicAccess technology from a PC running  
Windows 95 or Windows 98:  
1 Double-click the Add/Remove Programs icon in the Control Panel.  
2 Select the DynamicAccess Technology entry and click Remove.  
3 Restart the PC when prompted.  
DynamicAccess technology is removed from the PC.  
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Removing DynamicAccess Technology  
83  
Window s NT 4.0 and Follow this procedure to remove DynamicAccess technology from a PC running  
Window s NT 3.51 Windows NT 4.0 or Windows NT 3.51:  
1 Double-click the Netw ork icon in the Control Panel.  
2 Select the DAPassThru Driver Transport protocol.  
I
Windows NT 4.0—this protocol is located on the Protocols tab.  
I
Windows NT 3.51—this protocol is located in the list of installed network  
software on the Network Settings screen.  
3 Click Remove.  
4 Close the Netw ork screen, and then restart the PC when prompted.  
DynamicAccess technology is removed from the PC.  
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INDEX  
DOS  
Numbers  
I
installation  
DOS configuration program, changing  
3Com bulletin board service (3Com  
installing  
drivers, installing  
A
DynamicAccess technology  
K
B
KnowledgeBase topics, accessing  
E
encryption  
L
C
configuring the NIC in Windows  
M
F
multiple NIC installations  
G
D
H
N
NetWare  
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86  
INDEX  
NetWare Loadable Modules  
Windows 95  
S
network  
Windows 98  
T
NIC  
Windows NT 3.51  
Windows NT 4.0  
troubleshooting a crossover cable with  
O
U
V
verifying successful NIC installation  
P
W
Windows 2000  
R
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WARRANTY AND REGULATORY COMPLIANCE INFORMATION  
3Com Corporation Limited Warranty  
ETHERLINK 10/100 PCI NETWORK INTERFACE CARD WITH 3XP PROCESSOR  
HARDWARE  
3Com warrants this hardware product to be free from defects in workmanship and materials, under normal use and service, for  
the following length of time from the date of purchase from 3Com or its authorized reseller:  
Lifetime  
Spare Parts and Spares Kits 90 days  
3Coms sole obligation under this express warranty shall be, at 3Com’s option and expense, to repair the defective product or  
part, deliver to Customer an equivalent product or part to replace the defective item, or if neither of the two foregoing options  
is reasonably available, 3Com may, in its sole discretion, refund to Customer the purchase price paid for the defective product.  
All products that are replaced will become the property of 3Com. Replacement products may be new or reconditioned. 3Com  
warrants any replaced or repaired product or part for ninety (90) days from shipment, or the remainder of the initial warranty  
period, whichever is longer.  
SOFTWARE  
3Com warrants that each software program licensed from it will perform in substantial conformance to its program  
specifications, for a period of ninety (90) days from the date of purchase from 3Com or its authorized reseller. 3Com warrants  
the media containing software against failure during the warranty period. No updates are provided. 3Com's sole obligation  
under this express warranty shall be, at 3Com's option and expense, to refund the purchase price paid by Customer for any  
defective software product, or to replace any defective media with software which substantially conforms to applicable  
3Com published specifications. Customer assumes responsibility for the selection of the appropriate applications program  
and associated reference materials. 3Com makes no warranty or representation that its software products will meet  
Customer’s requirements or work in combination with any hardware or applications software products provided by third  
parties, that the operation of the software products will be uninterrupted or error free, or that all defects in the software  
products will be corrected. For any third party products listed in the 3Com software product documentation or specifications as  
being compatible, 3Com will make reasonable efforts to provide compatibility, except where the non-compatibility is caused by  
a bug” or defect in the third party's product or from use of the software product not in accordance with 3Com’s published  
specifications or user manual.  
YEAR 2000 WARRANTY  
In addition to the Hardware Warranty and Software Warranty stated above, 3Com warrants that each product sold or licensed  
to Customer on and after January 1, 1998 that is date sensitive will continue performing properly with regard to such date data  
on and after January 1, 2000, provided that all other products used by Customer in connection or combination with the 3Com  
product, including hardware, software, and firmware, accurately exchange date data with the 3Com product, with the  
exception of those products identified at 3Com’s Web site, http://www.3com.com/products/yr2000.html, as not meeting this  
standard. If it appears that any product that is stated to meet this standard does not perform properly with regard to such date  
data on and after January 1, 2000, and Customer notifies 3Com before the later of April 1, 2000, or ninety (90) days after  
purchase of the product from 3Com or its authorized reseller, 3Com shall, at its option and expense, provide a software update  
which would effect the proper performance of such product, repair such product, deliver to Customer an equivalent product to  
replace such product, or if none of the foregoing is feasible, refund to Customer the purchase price paid for such product.  
Any software update or replaced or repaired product will carry a Year 2000 Warranty for ninety (90) days after purchase or  
until April 1, 2000, whichever is later.  
OBTAINING  
WARRANTY SERVICE  
Customer must contact a 3Com Corporate Service Center or an Authorized 3Com Service Center within the applicable  
warranty period to obtain warranty service authorization. Dated proof of purchase from 3Com or its authorized reseller may  
be required. Products returned to 3Com's Corporate Service Center must be pre-authorized by 3Com with a Return Material  
Authorization (RMA) number marked on the outside of the package, and sent prepaid and packaged appropriately for safe  
shipment, and it is recommended that they be insured or sent by a method that provides for tracking of the package. The  
repaired or replaced item will be shipped to Customer, at 3Com's expense, not later than thirty (30) days after 3Com receives  
the defective product.  
Dead- or Defective-on-Arrival. In the event a product completely fails to function or exhibits a defect in materials or  
workmanship within the first forty-eight (48) hours of installation but no later than thirty 30) days after the date of purchase,  
and this is verified by 3Com, it will be considered dead- or defective-on-arrival (DOA) and a replacement shall be provided by  
advance replacement. The replacement product will normally be shipped not later than three (3) business days after 3Coms  
verification of the DOA product, but may be delayed due to export or import procedures. When an advance replacement is  
provided and Customer fails to return the original product to 3Com within fifteen (15) days after shipment of the replacement,  
3Com will charge Customer for the replacement product, at list price.  
3Com shall not be responsible for any software, firmware, information, or memory data of Customer contained in, stored on,  
or integrated with any products returned to 3Com for repair, whether under warranty or not.  
ADDITIONAL SERVICES  
Telephone Support, with coverage for basic troubleshooting only, will be provided for five (5) years, on a commercially  
reasonable efforts basis. Telephone support from 3Com is available from 3Com only if Customer purchased this product  
directly from 3Com, or if Customer’s reseller is unable to provide telephone support. Please refer to the Technical Support  
appendix in the user guide for telephone numbers.  
3Coms Web and Bulletin Board Service are available at no charge, and provide software and firmware upgrades, a bug list,  
and technical information about 3Com products.  
WARRANTIES EXCLUSIVE  
IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR BREACH OF THAT  
WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE PAID, AT 3COM'S OPTION. TO THE  
FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF  
ALL OTHER WARRANTIES, TERMS, OR CONDITIONS, EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW,  
STATUTORY OR OTHERWISE, INCLUDING WARRANTIES, TERMS, OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A  
PARTICULAR PURPOSE, SATISFACTORY QUALITY, CORRESPONDENCE WITH DESCRIPTION, AND NON-INFRINGEMENT, ALL  
OF WHICH ARE EXPRESSLY DISCLAIMED. 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR  
IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF ITS PRODUCTS.  
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3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED  
DEFECT OR MALFUNCTION IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER'S OR ANY THIRD PERSON'S  
MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS TO OPEN, REPAIR OR MODIFY THE  
PRODUCT, OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, OTHER  
HAZARDS, OR ACTS OF GOD.  
LIMITATION OF LIABILITY  
TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY, WHETHER  
BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), FOR INCIDENTAL, CONSEQUENTIAL, INDIRECT, SPECIAL, OR  
PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR PROFITS, LOSS OF BUSINESS, LOSS OF INFORMATION OR  
DATA, OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE,  
USE, PERFORMANCE, FAILURE, OR INTERRUPTION OF ITS PRODUCTS, EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN  
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE  
PURCHASE PRICE PAID, AT 3COM'S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY  
REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE.  
DISCLAIMER  
Some countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental  
or consequential damages for certain products supplied to consumers, or the limitation of liability for personal injury, so the  
above limitations and exclusions may be limited in their application to you. When the implied warranties are not allowed to  
be excluded in their entirety, they will be limited to the duration of the applicable written warranty. This warranty gives you  
specific legal rights which may vary depending on local law.  
GOVERNING LAW  
This Limited Warranty shall be governed by the laws of the State of California, U.S.A. excluding its conflicts of laws principles  
and excluding the United Nations Convention on Contracts for the International Sale of Goods.  
3Com Corporation  
5400 Bayfront Plaza  
Santa Clara, CA 95054  
(408) 326-5000  
Regulatory Compliance Information  
FCC CLASS B STATEMENT  
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:  
1
2
This device may not cause harmful interference, and  
This device must accept any interference received, including interference that may cause undesired operation.  
WARNING: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15  
of the FCC Rules, and the Canadian Department of Communications Equipment Standards entitled, “Digital Apparatus,”  
ICES-003.These limits are designed to provide reasonable protection against harmful interference in a residential installation.  
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the  
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not  
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be  
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more  
of the following measures:  
I
I
I
I
Reorient or relocate the receiving antenna.  
Increase the separation between the equipment and receiver.  
Connect the equipment into an outlet on a circuit different from the one which the receiver is connected to.  
Consult the dealer or an experienced radio/TV technician for help.  
The user may find the following booklet prepared by the Federal Communications Commission helpful:  
The Interference Handbook  
This booklet is available from the U.S. Government Printing Office, Washington, D.C. 20402. Stock No. 004-000-00345-4.  
Tested to comply w ith the FCC Standards for home and office use.  
NOTE: In order to maintain compliance with the limits of a Class B digital device, 3Com requires that you use quality interface  
cables when connecting to this device. Changes or modifications not expressly approved by 3Com could void the user’s  
authority to operate this equipment. Refer to the manual for specifications on cabling types.  
FCC DECLARATION  
OF CONFORMITY  
We declare under our sole responsibility that the  
Model:  
Description:  
3CR990-TX-95  
EtherLink 10/100 PCI Network Interface Card  
with 3XP processor (56-bit encryption model)  
EtherLink 10/100 PCI Network Interface Card  
with 3XP processor (3DES encryption model)  
3CR990-TX-97  
to which this declaration relates, is in conformity with the following standards or other normative documents:  
I
I
ANSI C63.4-1992 Methods of Measurement  
Federal Communications Commission 47 CFR Part 15, subpart B  
15.107 (e) Class B Conducted Limits  
15.109 (g) Class B Radiated Emissions Limits  
3Com Corporation, 5400 Bayfront Plaza, P.O. Box 58145, Santa Clara, CA 95052-8145  
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INDUSTRY CANADA CLASS B  
EMISSION COMPLIANCE  
STATEMENT  
This Class B digital apparatus complies with Canadian ICES-003.  
AVIS DE CONFORMITÉ À LA  
RÉGLEMENTATION  
Cet appareil numérique de la classe B est conform à la norme NMB-003 du Canada.  
D’INDUSTRIE CANADA  
VCCI CLASS B STATEMENT  
This is a Class B product based on the standard of the Voluntary Control Council for Interference from Information Technology  
Equipment (VCCI). If this is used near a radio or television receiver in a domestic environment, it may cause radio interference.  
Install and use the equipment according to the instruction manual.  
3COM END USER SOFTWARE  
LICENSE AGREEMENT  
IMPORTANT: Read Before Using This Product  
YOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE USING THIS PRODUCT. IT  
CONTAINS SOFTWARE, THE USE OF WHICH IS LICENSED BY 3COM CORPORATION (“3COM”) TO ITS CUSTOMERS  
FOR THEIR USE ONLY AS SET FORTH BELOW. IF YOU DO NOT AGREE TO THE TERMS AND CONDITIONS OF THIS  
AGREEMENT, DO NOT USE THE SOFTWARE. USING ANY PART OF THE SOFTWARE INDICATES THAT YOU ACCEPT  
THESE TERMS.  
LICENSE: 3Com grants you a nonexclusive license to use the accompanying software program(s) (the Software”) subject to  
the terms and restrictions set forth in this License Agreement. You are not permitted to lease, rent, distribute or sublicense the  
Software or to use the Software in a time-sharing arrangement or in any other unauthorized manner. Further, no license is  
granted to you in the human readable code of the Software (source code). Except as provided below, this License Agreement  
does not grant you any rights to patents, copyrights, trade secrets, trademarks, or any other rights in respect to the Software.  
The Software is licensed to be used on any workstation or any network server owned by or leased to you provided that the  
Software is used only in connection with a 3Com adapter. You may reproduce and provide one (1) copy of the Software and  
supporting documentation for each such workstation or network server on which the Software is used as permitted hereunder.  
Otherwise, the Software and supporting documentation may be copied only as essential for backup or archive purposes in  
support of your use of the Software as permitter hereunder. You must reproduce and include all copyright notices and any  
other proprietary rights notices appearing on the Software and the supporting documentation on any copies that your make.  
ASSIGNMENT; NO REVERSE ENGINEERING: You may not transfer or assign the Software and/or this License Agreement to  
another party without the prior written consent of 3Com. If such consent is given and you transfer or assign the Software  
and/or this License Agreement, then you must at the same time either transfer any copies of the Software as well as the  
supporting documentation to the same party or destroy any such materials not transferred. Except as set forth above, you  
may not transfer or assign the Software or your rights under this License Agreement.  
Modification, reverse engineering, reverse compiling, or disassembly of the Software is expressly prohibited. However, if you  
are a European Community (EC) resident, information necessary to achieve interoperability of the Software with other  
programs within the meaning of the EC Directive on the Legal Protection of Computer Programs is available to you from 3Com  
upon written request.  
EXPORT RESTRICTIONS: The Software covered by this License Agreement contains data encryption code, which is unlawful to  
export from the US or Canada without an approved United States Dept. of Commerce export license. You agree that you will  
not export or re-export the Software or accompanying documentation (or any copies thereof) or any products utilizing the  
Software or such documentation in violation of any applicable laws or regulations of the United States and the country in  
which you obtained them.  
TRADE SECRETS; TITLE: You acknowledge and agree that the structure, sequence and organization of the Software are the  
valuable trade secrets of 3Com and its suppliers. You agree to hold such trade secrets in confidence. You further acknowledge  
and agree that ownership of, and title to, the Software and all subsequent copies thereof regardless of the form or media are  
held by 3Com and its suppliers.  
UNITED STATES GOVERNMENT LEGEND: All technical data and computer software is commercial in nature and developed  
solely at private expense. The Software is delivered as Commercial Computer Software as defined in DFARS 252.227-7014  
(June 1995) or as a commercial item as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in  
this License Agreement, which is 3Com’s standard commercial license for the Software. Technical data is provided with limited  
rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree  
not to remove or deface any portion of any legend provided on any licensed program or documentation delivered to you under  
this License Agreement.  
TERM AND TERMINATION: This license will expire fifty (50) years from the date that you first use the Software, if it is not  
earlier terminated. You may terminate it at any time by destroying the Software and documentation together with all copies  
and merged portions in any form. It will also terminate immediately if you fail to comply with any term or condition of this  
License agreement. Upon such termination you agree to destroy the Software and documentation, together with all copies  
and merged portions in any form.  
GOVERNING LAW: This License Agreement shall be governed by the laws of the State of California as such laws are applied  
to agreements entered into and to be performed entirely within California between California residents and by the laws of the  
United States. You agree that the United Nations Convention on Contracts for the International Sale of Goods (1980) is hereby  
excluded in its entirety from application to this License Agreement.  
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LIMITED WARRANTY; LIMITATION OF LIABILITY: All warranties and limitations of liability applicable to the Software are  
as sated on the Limited Warranty Card or in the product manual, whether in paper or electronic form, accompanying the  
Software. Such warranties and limitations of liability are incorporated herein in their entirety by this reference.  
SEVERABILITY: In the event any provision of this License Agreement is found to be invalid, illegal or unenforceable, the  
validity, legality and enforceability of any of the remaining provisions shall not in any way be affected or impaired and a valid,  
legal and enforceable provision of similar intent and economic impact shall be substituted therefor.  
ENTIRE AGREEMENT: This License Agreement sets forth the entire understanding and agreement between you and 3Com,  
supersedes all prior agreements, whether written or oral, with respect to the Software, and may be amended only in a writing  
signed by both parties.  
3Com is a registered trademark of 3Com Corporation.  
3Com Corporation  
5400 Bayfront Plaza  
P.O. Box 58145  
Santa Clara, CA 95052-8145  
(408) 326-5000  
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