Best Data Products DSL502E User Manual

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Best Data Products Inc.

DSL502E_EU

User’s Manual

Revision 1.0

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Best Data DSL542 User’s Guide

This manual m a y not be c opie d, p hotoc op ie d, tra nsm i tte d, or tr a ns late d i n to l an gua ge or com put er language, in any form, or by any means, in whole or in part, without the prior written consent by the manufacturer.

Disclaimer

The manufacturer makes no representations or warranties, express ed , s tat utor y or im plie d, r eg ard in g the fitness or merchantability of this product for any particular purpose. Further, the manufacturer is no liable for any dam a ges, inc l udin g b ut n ot lim ite d t o, l ost pr ofits , los t sa vin g, o r othe r i nc ide nta l or consequentia l d ama ge s ar is ing ou t of t he u se of thi s product. The manufacturer also reserves the right to make any improvements or modifications to the product described in this manual at any time, without notice of these changes.

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Best Data DSL542 ADSL Ethernet Router User’s Guide

Federal Communications Commission (FCC) NOTICE

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of FCC Rules. 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:

z Reorient of relocate the receiving antenna. z Increase the separation between the equipment and receiver. z Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

z Consult the dealer or an experienced radio / TV technician for help.

This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used with the unit to insure compliance. This statement can be deleted if unit was not tested with shielded cables.

The manufacture is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user's authority to operate the equipment.

This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference that may cause undesired operation.

CAUTION

Always disconnect all telephone lines from the wall outlet before servicing or disassembling this equipment.

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Best Data DSL542 User’s Guide

IMPORTANT SAFETY INSTRUCTIONS

When using your telephone equipment, basic safety precautions should always be followed to reduce the risk of fire, electric shock and injury to persons, including the following;

1. Do not use this product near water, for example near a bath tub, wash bowl, kitchen sink or

laundry tub, in a wet basement or near a swimming pool.

2. Avoid using a telephone (other then a cordless type) during an electrical storm. There may be a

remote risk of electr ic shoc k from ligh ting.

3. Do not use the telephone to report a gas leak in the vicinity of the Leak.

4. Use only the power cord and batteries indicated in this manual. Do not dispose of batteries in a

fire. They may explode. Check with local codes for possible special disposal Instructions.

SAVE THESE INSTRUCTIONS

Comment [CT1]: Add FCC statements, legal, copyright info, etc. Your equipment must be designed to meet all appropriate UL, IEC, FCC, and other requirements which apply to the jurisdiction where it will be used. For example, “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 . ”

iii

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Best Data DSL542 ADSL Ethernet Router User’s Guide

Table of Contents

1 INTRODUCT ION.............................................. ....... ....... ....... ....... .... ....... ....... ....... ....... .....1

Features............................................................................................................................................................... 1

System Requirements........................................................................................................................................ 1

2 GETTING TO K N O W TH E B ES T D A TA DSL542.................... ... ........ ....... ....... ....... ....... .2

Parts Check......................................................................................................................................................... 2

Front Panel......................................................................................................................................................... 3

Rear Panel........................................................................................................................................................... 4

3 HARDWARE C ONN EC TI ON AN D PC CO NF IGU RA T ION.......................... ........... ........5

Connecting Your Best Data DSL 542...............................................................................................................5

Configuring Your Computers..........................................................................................................................6

4 GETTING STA RT ED W ITH TH E C ON FI GUR A TION MA NA GE R................................15

Accessing the Configuration Manager..........................................................................................................15

Functional Layout............................................................................................................................................16

Changing Your Login Password.................................................................................................................... 17

Committing Your Changes and Rebooting the Device...............................................................................17

5 SETTING TH E L AN IP A DDR ESS.................................................. ........... ....... .......... ...19

Ethernet, USB, or Both?................................................................................................................................. 19

Configuring the LAN IP Address..................................................................................................................19

Configuring the USB Port IP Address..........................................................................................................21

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6 CONFIGURIN G DYN A MIC H OST C ON FI GUR A TION PR OTO CO L............................23

Configuring DHCP Server............................................................................................................................. 23

Configuring DHCP Relay...............................................................................................................................27

Setting the DHCP Mode.................................................................................................................................. 28

7 CONFIGURING NETWORK ADDRESS TRANSLATION.............................................29

Your Default NAT Setup................................................................................................................................29

Viewing NAT Global Settings and Statistics............................................................................................... 29

Viewing NAT Rules and Rule Statistics........................................................................................................31

Viewing Current NAT Translations..............................................................................................................32

Adding NAT Rules........................................................................................................................................... 33

8 CONFIGURI NG IP ROU TE S...................................... ....... .......... ........... ........... ........... ..41

Viewing the IP Routing Table........................................................................................................................ 41

Adding IP Routes............................................................................................................................................. 42

9 CONFIGURIN G THE ATM VCC............................................... ....... ....... .... ....... ....... ......44

Viewing Your ATM VC Setup....................................................................................................................... 44

Adding ATM VCCs.........................................................................................................................................45

Modifying ATM VCCs.................................................................................................................................... 46

10 CONFIGURING PPP IN TE R FAC ES................................................... .......... ..........47

Viewing Your Current PPP Configuration..................................................................................................47

Viewing PPP Interface Details.......................................................................................................................49

Adding a PPP Interface Definition................................................................................................................ 51

Modifying and Deleting PPP Interfaces........................................................................................................ 52

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11 CONFIGURING EOA INTERFACES............................................................ ..........53

Viewing Your EOA Setup............................................................................................................................... 53

Adding EOA Interfaces................................................................................................................................... 54

12 CONFIGURING IP OA INTE RFA CES............................................................... ......56

Viewing Your IPoA Interface Setup.............................................................................................................. 56

Adding IPoA Interfaces................................................................................................................................... 57

13 CONFIGURING BR IDG IN G.......................................................................... ........ ..59

Using the Bridging Feature.............................................................................................................................59

Defining Bridge Interfaces..............................................................................................................................59

Deleting a Bridge Interface............................................................................................................................. 60

A TROUBLESHOOTING.............................................................. ....... ....... ....... ........ ....... ..61

Diagnosing Problem using IP Utilities........................................................................................................... 63

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Best Data DSL542 ADSL Ethernet Router User’s Guide

1 Introduction

Congratulations on becoming the own er of the B est D ata DSL542 A DSL Ether net bridge /rout er. Your LAN (local area network) will now be able to access the Internet using your high-speed ADSL connection.

This User Guide will show you h ow to inst all and set up the Best Data DSL542 ADSL Bridge/Router, and how to customize its configurat ion to get the most out of your ne w product.

Features

f Internal ADSL modem for high-speed Internet access f 10/100Base-T Ethernet router to provide I nternet co nnectivity to all compu ters on y our

LAN

f USB port for connecting a USB-enabled PC (Option) f Network address translation (NAT), Firewall, and IP filtering functions to provide security

for your LAN

f Network configuration through DHCP Server and DHC P Relay f Services including IP route and DNS con figuration , RIP, and IP and DSL pe rformanc e

monitoring

f Configuration program you access via an HTML browser

System Requirements

In order to use the Best Data DSL542 ADSL /Ethernet router, y ou must have the foll owing :

f ADSL service up and running on your teleph one line , with at least on e public Internet

address for your LAN

f One or more computers each containing an Ethernet 10Base-T/100Base-T network

interface card (NIC) and/or a single computer with a USB port

f An Ethernet hub/switch, if you are connecting the device to more than one computer on

an Ethernet network.

For system configuration using the sup plie d web-based program : a web brow ser suc h as Internet Explorer v5.0 or later, or Netscape v4.7 or later

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2 Getting to Know the Best Data DSL542

Parts Check

In addition to this document, your Best Data DSL5 42 should arrive with the follow ing:

f One Best Data DSL542 ADSL E thernet Bri dge/Rout er f One Power adapter and power cord f One USB cable (Option) f One Ethernet cable (“straight-through” type) f One RJ-11 telephone cord f One CD-ROM (This manual and/or USB Driver)

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Front Panel

The front panel contains lights calle d LEDs tha t indica te the sta tus of the u nit.

LED Status Description

POWER

LINK

WAN

DATA

LAN

100

Figure 1. Front Panel and LEDs

Glowing

Power on

Dim Power off Glowing

The WAN port is successfully linked with ADSL line

Dim The WAN port is not linked with any ADS L line Glowing The WAN port is receiving/transmitting da ta Dim The WAN port is not receiving/transmitting data Glowing The LAN port is connected to a 100M Etherne t device Flashing The LAN port is receiving/transmitting data Glowing The LAN port is connected to a 10M Ethernet de vice Dim The LAN port is receiving/transmitting data

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Rear Panel

The rear panel contains the ports for the unit's data and power connections.

DSL Reset USB LAN CD-INPOWER Switc hCONSOLE

Figure 2. Rear Panel Connectio ns

ADSL Connects the device to the wall jack for Internet connection RESET Resets the device to default configuration values. USB (Option) Connects to the USB port on your PC. LAN

CONSOLE (Option) Using a special cable to connect to your computer for configuration DC IN Connects to the supplied power converter cable.

Connects the device to your PC's Ethernet port, or to the uplink port on your LAN's hub, using the cable provided.

Comment [CT2]: Insert photo of front-panel LED. Also, change table to reflect the LEDs you implemented and their labels.

Comment [CT3]: True?

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3 Hardware Connection and PC

configuration

Connecting Your Best Data DSL542

In this part, you connect the device to the phone jack, the power outlet, and your computer or network.

Figure 4 illustrates the hardware conne ctions. Re fer to the s teps tha t follow for specific instructions.

Before you begin, turn the power off for all devices. Th ese include your computer(s), your LAN hu b/switch (if applic able),

WARNING

DSL Reset USB LAN CD-IN POWER Switc hCONSOLE

RJ-11 cord

and the Best Data DSL542.

USB Cable (Option)

Computer

Figure 3. Overview of Hardware Connections

Ethernet Cable

Computer

Adaptor

Wall Outlet

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Best Data DSL542 ADSL Ethernet Router User’s Guide

Step 1. Connect the ADSL cable

Connect one end of the provided phone cable to the port labeled ADSL on the rear panel of the device. Connect the other end to y our wall phone jac k.

Step 2. Connect the Ethernet cable.

If you are connecting a LAN to the Bes t Da ta DS L542 AD SL/Ethe rnet route r, a ttach one end of a provided Ethernet cable to a regular hub port and the other to the Ethernet port on the Best Data DSL542.

If you are using the Best Data DSL542 with a single computer and no hub, you must use a “crossover” Ethernet cable (not provided) to attach the PC directly to the device. The crossover cable is wired differently than the cable you would use to connect to a hub. When you compare the colored wire s on each end of a s traight-thro ugh cab le, they w ill be in the same sequence; on crossover cables, they w ill not. Cont act y our ISP for assis tance.

Step 3. Attach the power connector.

Connect the AC power adapter to the PWR connector labeled DC IN on the back of the device and plug in the adapter to a wa ll outlet or power strip .

Step 4. Power up your systems.

Turn on and boot up your computer(s) and any LAN devi ces suc h as hubs o r switches .

Step 5: Install USB software and connect the USB cable. (USB port is ontiona l)

You can attach a single computer to the device using a USB cable. The USB port is useful if you have an USB-enabled PC that does not have a network interface card for attaching to your Ethernet network.

Before attaching the USB cable, you must in stall a USB driver and con figure the c omputer . For complete instructions, see page 10.

Configuring Your Computers

This part provides instructions for configuring the Internet settings on your computers to work with the Best Data DSL542.

Before you begin

By default, the Best Data DSL542 automatically assigns all required Internet settings to your PCs. You need only to configure the PCs to accept the information when it is assigned.

In some cases, you may want to assign Internet information manually to some or all of your computers rather than allow the Best

Note

f If you have connected your PC via the USB port, see the USB configuration

instructions on page 10.

f If you ha ve connect ed your PC of LAN via Ethernet to the Best Data DSL542,

follow the instructions that correspond to the operating system installed on your PC.

Data DSL542 to do so. See “Assigning static In terne t information to your PCs” on page 9 for instructio ns.

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Best Data DSL542 ADSL Ethernet Router User’s Guide

Windows® 95, 98 PCs:

First, check for the IP protocol and, if necess ary, insta ll it:

1. In the Windows task bar, click the Start button, point to Settings, and then click Control Panel.

2. Double-click the Network icon.

The Network dialog box displays with a list of currently installed network components. If the list includes TCP/IP, and then the pr otocol ha s already been enab led. Skip to step 9.

3. If TCP/IP does not display as an installed component, click

The Select Network Component Type dial og box displays.

4. Select Protocol, and then click

The Select Network Protocol dialog box display s.

5. Click on Microsoft in the Manufacturers list box, and then click TCP/IP in the Network Protocols list box.

6. Click

to return to the Network dial og box, and then click

again.

You may be prompted to install files from your W indows 95/ 98 ins tallation CD. Fo llow the instructions to install the file s.

7. Click

to restart the PC and complete the TCP/IP installation.

Next, configure the PCs to accept IP information assigned by the Best Data DSL542:

8. Open the Control Pan el window, and then click the Network icon.

9. Select the network component labeled TCP/IP, and then click

If you have multiple TCP/IP listings, select the listing associated with your network card or adapter.

10. In the TCP/IP Properties dialog box, click the IP Address tab.

11. Click the radio button labeled Obtain an IP address automatically.

12. Click the DNS Configuration tab, and then click the radio button labeled Obtain an IP address automatically.

13. Click

twice to confirm and save your changes.

You will be prompted to restart Windows.

14. Click

Windows NT 4.0 workstations:

First, check for the IP protocol and , if neces sary, insta ll it:

1. In the Windows NT task bar, click the Start but ton, point to Settings, and then click Control Panel.

2. In the Control Panel window, double click the Network icon.

3. In the Network dialog box, click the Protocols tab.

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The Protocols tab displays a list of currently installed network protocols. If the list includes TCP/IP, then the protocol has already been enabled. Skip to step 9.

4. If TCP/IP does not display as an installed component, click

5. In the Select Network Protocol dialog box, select TCP/IP, and then click

You may be prompted to install files fr om your W indows NT installatio n CD or othe r media. Follow the instructions to install th e file s.

After all files are installed, a window displays to inform you that a TCP/IP service called DHCP can be set up to dynamically assign IP information.

6. Click

to continue, and then clic k if prompted to restart

your computer.

Next, configure the PCs to accept IP information assigned by the Best Data DSL542:

7. Open the Control Pan el window, and then double-click the Network icon.

8. In the Network dialog box, click the Protocols tab.

9. In the Protocols tab, select TCP/IP, and then click

10. In the Microsoft TCP/IP Pro perties dialog box, click the radio button labeled Obtain an IP address from a DHCP server.

11. Click

twice to confirm and save your changes, and then close the

Control Panel.

Windows 2000 PCs:

First, check for the IP protocol and , if neces sary, insta ll it:

1. In the Windows task bar, click the Start button, point to Settings, and then click Control Panel.

2. Double-click the Network and Dial-up Connections icon.

3. In the Network and Dial-up Connections window, right-click the Local Area Connection icon, and then select Properties.

The Local Area Connection Properties dialog box displays with a list of currently installed network components. If the list in cludes Intern et Protoco l (TCP/IP), th en the protocol has already been enabled. Skip to step 10.

4. If Internet Protocol (TCP/IP) does not display as an installed component, click

5. In the Select Network Component Type dialog box, select Protocol, and then click

6. Select Internet Protocol (TCP/IP) in the Network Protocols list, and then click

You may be prompted to install files f rom your W indows 200 0 installa tion CD or other media. Follow the instructions to install th e file s.

7. If prompted, click

to restart your computer with the new settings.

Next, configure the PCs to accept IP information assigned by the Best Data DSL542:

8. In the Control Panel, double-click the Network and Dial-up Connections icon.

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9. In Network and Dial-up Connec t io ns wind o w, righ t -cl i ck the Loc al Are a Connection icon, and then select Properties.

10. In the Local Area Connection Properties dialog box, select Internet Protocol (TCP/IP), and then click

11. In the Internet Protocol (TCP/IP) Properties dialog box, click the radio b utton labeled Obtain an IP address automatically. Also click the radio button labeled Obtain DNS server address automatically.

12. Click

twice to confirm and save your changes, and then close the

Control Panel.

Windows Me PCs

1. In the Windows task bar, click the Start button, point to Settings, and then click Control Panel.

2. Double-click the Network and Dial-up Connections icon.

3. In the Network and Dial-up Connections window, right-click the Network icon, and then select Properties.

The Network Properties dialog box displays with a list of currently installed network components. If the list includes Internet Protocol (TCP/IP), then the protocol has already been enabled. Skip to step 11.

4. If Internet Protocol (TCP/IP) does not display as an installed component, click

5. In the Select Network Component Type dialog box, select Protocol, and then click

6. Select Microsoft in the Manufacturers box.

7. Select Internet Protocol (TCP/IP) in the Network Protocols list, and then click

You may be prompted to install files from your Windows Me installation CD or other media. Follow the instructions to install th e files.

8. If prompted, click

to restart your computer with the new settings.

Next, configure the PCs to accept IP information assigned by the Best Data DSL542:

9. In the Control Panel, double-click the Network and Dial-up Connections icon.

10. In Network and Dial-up Connections window, right-click the Network ico n, and then select Properties.

11. In the Network Properties dialog box, select TCP/IP, and then click

12. In the TCP/IP Settings dialog box, click the radio button labeled Server

assigned IP address. Also click the radio button labeled Server assigned name server address.

13. Click

twice to confirm and save your changes, and then close the

Control Panel.

Assigning static Internet information to your PCs

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Best Data DSL542 ADSL Ethernet Router User’s Guide

f In some cases, you may want to assign Internet information to some or all of your

PCs directly (often called “statically”), rather than allow ing the Best Data DSL 542 to assign it.

Before you begin, contact your ISP if you do no t already have th e follo wing informati on:

f The IP address an d subne t mask t o be ass igned to each PC to which y ou will be

assigning static IP information.

f The IP address of the default gatew ay for your LAN. In mo st cases, t his is the

address assigned to the LAN port on the Bes t Data DSL542 . By default, the LAN port is assigned this IP address: 192.168.1.1. (You can change this number, or another number can be assigned by your ISP. See Chapter 5 for more information.)

f The IP address of your ISP’s Domain Name System (DNS) server.

On each PC to which you want to assign static information, follow the instructions on pages 7 through 9 relating only to checking for and/or installing the IP protocol. Once it is installed, continue to follow the instructions for displaying each of the Internet Protocol (TCP/IP) properties. Instead of enabling dynamic assignment of the IP addresses for the computer, DNS server, and default gateway; click the radio buttons that enable you to enter the information manually.

Your PCs must have IP addresses that place them in the same subnet as the Best Data DSL542’s LAN port. If you ma nually as sign

Note

IP information to all your LAN PCs, you can follow the instructions in Chapter 5 to change the LAN port IP address accordingly.

Configuring a computer connected to the USB port

If the Best Data DSL542 includes a USB port for connec ting to a PC, you must ins tall the provided USB driver software on the PC. The driver enables Ethernet-over-USB communication with the Best Data D SL542.

Configuring the USB computer is a two-part process:

f In Part 1, you install the USB driver on the PC. f In Part 2, you configure the IP properties on the USB PC .

Before you start to install USB driver, you shall cr eate an en try for US B port via RS -232 serial cable.

1. Connect an RS-232 cable from one serial COM port on your PC to the Best Data DSL542

2. In Windows, go to Start → Programs →Accessori es → Communications → HyperTerminal

3. When the HyperTerminal window appears, double-click Hypertrm to start a new session.

4. Name the new connection and select an icon for this session

5. In the Conne ct To dialog box, select the COM port that you used to connect to this product.

6. In the COM port Properties dialog box, set the serial port setting at 38400 ba ud rate, 8 bit, none parity, none flow contr ol.

7. Type “create usb intf ifname usb-0 ip 198.168.1.2 mask 255.255.255.0 inside” then Enter

8. You will see “Entry created” then you have to type “commit” to save this entry.

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Best Data DSL542 ADSL Ethernet Router User’s Guide

Part 1. Installing the USB Driver:

1. Ensure that the USB cable is not connected to the USB port on the PC or to the USB port on the Best Data DSL542. The installation program will prompt you when to connect the cable.

2. Copy the USB installation file to a temporary directory on the USB computer.

3. In the folder where you copied the files, double-click on setup.exe to start the installation program. The Welc o m e dialo g box displ ays, as shown i n Fi gu re :

Figure 4. USB Driver Installat ion: Welc ome Sc reen

4. Click

to display the Software License Agreement dialog box, as

shown in Figure .

Figure 5. USB Driver Installation: Software License Agreement

5. After reviewing the license agreement, click

to continue.

6. If a Microsoft digital signature dialog box displays, click

to continue.

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Best Data DSL542 ADSL Ethernet Router User’s Guide

The installation program will begin copying the neces sary installation files to the required locations. When finishe d, the Setup Comp lete dia log box will display , as shown in Figure .

Figure 6. USB Driver Installation: Setup Complete

7. Click

A DSL Installer dialog box displays while the program s earches for your US B hardware. After a few seconds, a second dialog box displays to prompt you to attach the USB cable, as shown in Figure .

Figure 7. USB Driver Installation: DSL Installer

8. Attach the USB cable to the Best Data DSL542 and to your PC.

The USB cable provided has a flat connector on one end (called Type A) and a square connector on the other (Type B). Connect the fla t conne ctor to your P C and the square connector to the Best Data DSL542.

A window displays briefly, indicating that the system has found new hardware.

9. If a Microsoft di gital signature dialog box displays, click

The System Settings Change dialog box dis play s to prompt you to restart your computer, as shown in Figure :

to continue.

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Best Data DSL542 ADSL Ethernet Router User’s Guide

Figure 8. USB Driver Installation: System S ettings Change

9. Click

to restart your computer.

When your computer finishes rebooting, make sure that the GlobeSpan installer program displays as an item on y our W indows Sta rt menu:

10. Click the Start button, point to Programs » GlobeSpan DSL Modem, and click on Configure.

The DSL Modem Installer dialog box should display , as shown in Figure .

Figure 9. DSL Modem Installer Dialog Box

This step is only verification. You do not need to access the configuration program at this time.

11. Click

Part 2. Configuring IP properties on the USB PC.

Now that the USB driver installation is c omplete, y ou must co nfigure the USB PC s o that its IP properties place it on the same subnet as the Best Data DSL542’s USB port. There are two ways to do this:

f Th e Best Data DSL542 is con figured to a ssign an ap propriate IP address to the

USB PC. If you want to use this automatic assignment feature, called “DHCP server,” you must configure the USB PC to accept dynamically assigned IP information. Follow the instruction on pages 7 through 9 that correspond to the operating system installed on the PC.

f If y ou want to assign a stat ic IP add ress to the PC , follow the instr uctions on page 9

and use the following information.

• In the Network and Dial-up Connections window, be sure to select the icon th at corresponds to your new USB connection (not the one that corresponds to your

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Best Data DSL542 ADSL Ethernet Router User’s Guide

Ethernet NIC). When you display the pro perties for t he icon, the follow ing text should display in the Connect Using text box:

GlobeSpan USB IAD LAN Modem #n

• The USB port on the Best Data DSL542 is preconfigured with these properties

(you cannot change these values):

USB port IP address: 198.168.1.2 USB port subnet mask: 255.255.255.0

Therefore, your PC must be configured as follows: IP address: 192.168.2.n where n is a

number from 2 to 254.

Subnet mask: 255.255.255.0 Default gateway: 198 .168.1.2

Default Router Settings

In addition to handling the DSL connection to y our ISP, t he Best Da ta DSL542 ADSL/Ethernet router can provide a variety of services to your network. The device is preconfigured with default settings fo r use wi th a typical home or sma ll office network.

Table 1 lists some of the most important default settings; these and other features are described fully in the subs equent ch apters. If you are fam iliar w ith network configuration, review the settings in Table 1 to verify that they meet the needs of your network. Follow the instructions to change the m if ne cessary. If you are un familiar with these settings, try using the device without modification, or contact your ISP for assistance.

Before you modifying any settings, review C hapter 4 for gen eral info rmation abo ut accessing and using the Configuration Manager program. We strongly recommend that you contact your ISP prior to changing the default configuration.

Table 1. Default Settings Summary

Option Default Setting Explanation/Instructions

DHCP (Dynamic Host Configuration Protocol)

NAT (Network Address Translation)

LAN Port IP Address

USB Port IP Address

DHCP server enabled with two pools of addresses:

For LAN computers:

192.168.1.3 through 192.168.1.34 For USB computer:

192.168.1.2 (for both, subnet mask = 255.255.255.0)

napt rule enabled Your computers’ private IP addresses

Static IP address: 192.168.1.1 subnet mask: 255.255.255.0

Assigned static IP address:

198.168.1.2 subnet mask: 255.255.255.0

The Best Data DSL542 maintains a pool of 32 private IP addresses for dynamic assignment to your LAN computers and a pool containing 1 IP address for assignment to your USB computer. To use this service, you must have set up your computers to accept IP information dynamically. See Chapter 6 for an explanation of the DHCP service.

(see DHCP above) will be translated to your public IP address whenever they access the Internet. See Chapter 7 for a description of the NAT service.

This is the IP address of the LAN port on the device. The LAN port connects the device to your Ethernet network. Typically, you will not need to cha nge this address. See Chapter 5 for instructions.

This is the IP address assigned to the USB port on the device (if used). Typically, you will not need to cha nge this address. See Chapter 5 for instructions.

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Best Data DSL542 ADSL Ethernet Router User’s Guide

4 Getting S tarted with the Configuration

Manager

The Best Data DSL542 includes preinstalled program called the Configuration Manager, which provides an interface to the software installed on the device. It enables you to configure the device settings to meet the nee ds of your network. Y ou access it th roug h your web browser from any PC connected to the Best Data DSL542 via

The Best Data DSL542 may already be configured to provide Internet connectivity for your net work. If it works pr operly wit h the preconfigured settings, then you may not need t o use the

Note

Configuration Manager. Contact your ISP to determine which settings you may need to change, if any.

Accessing the Configuration Manager

The Configuration Manager program is preinstalled into memory on the Best Data DSL542. To access the program, you need the following:

f A PC or laptop connected to the LAN port on the Best Data DSL542. f A web browser installed on the PC. The program is designed to work best with

Microsoft Internet Explorer® version 5.0, Netscape Navigator® version 4.7, or later versions .

You can access the program from any computer connected to the Best Data DSL542 via the LAN or USB ports.

1. From a LAN computer, open your web browser, type the following URL in the web address (or location) box, and press <Enter>:

http://192.168.1.1

Or, from the USB computer, type:

http://198.168.1.2

These are the predefined IP addresses for the LAN and USB ports on the Be st Data DSL542.

A login screen displays, as shown in Figure .

the LAN port.

Figure 10. Login Screen

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2. Enter your user name and passwo rd, and then click .

3. The first time you log into the program, use t hese defaults:

Default User Name: root Default Password:

root

You can change the password at any time (see Changing Your

Note

Functional Layout

Configuration Manager tasks are grou ped into categorie s, which you can acces s by clicking the tabs at the top of each page. You can click on these to display the specific configuration options.

Tab Task bar

Comment [CT4]: Replace with the default user ID and password that you preconfigure on your product, if different. Search for and replace throughout.

A separate page displays for each task in the task bar. T he left-mo st task disp lays by default when you click on a new tab. The same task ma y appear in more than one tab, when appropriate. For example, the Lan Config task displays in both the LAN tab and the Routing tab.

Commonly used buttons

The following buttons are used throughout the application.

Button Function

Stores in temporary sy stem memory a ny changes y ou have made on the current pag e. See “ Committing your changes” on page 17 for instructions on storing changes permanently.

Redisplays the current page with updated statistics.

When accumulated statistics are displaying, this button resets the statistics to their initial value s.

Launches the online help for the current topic in a separate browser window. Help is available from any main topic page.

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Changing Your Login Password

The first time you log into the Configuration Manager, you use the default user ID and password (root and root). The system allows only one user ID and password. Only the password can be changed.

This user ID and password is only used for loggin g into the Configuration Manager; it is not the same as the login you may use

Note

To change the Configuration Manager login password:

1. Click the Admin tab. The User Password Configuration page displays by default.

2. Type your current password in the Old Password text box.

3. Type the new password in the New Password text box and again in the Confirm

New text box.

The password can be up to eight AS CII char acters long. When logging in, you mu st ty pe the new password in the same upper and lower case characters that you use here.

to connect to your ISP (described in Chapter 11).

Figure 11. User Password Configuration Page

4. Click

5. Click the Admin tab, and then click

6. Click

Commit & Reboot in the task bar.

to save your changes to permanent memory.

Committing Your Changes and Rebooting the Device

Committing your changes

Whenever you use the Configuration Manager to change system settings, the changes are initially placed in temporary storage. Your changes are made effective when you submit them, but will be lost if the device is reset or turned o ff.

To save your changes for future use, y ou can us e the commi t function .

Submitting changes saves them only un til the de vice is reset o r

Note

powered do wn. Committing changes saves them permanently.

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Follow these steps to commit changes to permanent storage .

1. Click the Admin tab, and then click

Commit & Reboot in the task bar.

The Commit & Reboot page displays:

Figure 12. Commit & Reboot Page

2. Click

. (Disregard the selectio n in the Reboot Mode drop-down list; it

does not affect the commit process.) The changes are saved to permanent storage. The previous settings are copied to backup storage so that they can be recalled if your new

settings do not work prope rly (see

the rebooting instructions o n page 18) .

Rebooting the device using Configuration Mana ger

To reboot the device, display the Commit and Reboot page, select the appropriate reboot mode from the drop-down menu, and then click

You can select from the following three opt ions when rebooting :

Option Description

Reboot from Last Configuration

Reboot from Backup Configuration

Reboot from Default Configuration

Reboots the device using the current settings in permanent memory, including any changes you just committed.

Reboots the device using setting s stored in backup memory. These are the settin gs that were in effect before you committed new settings in the current session.

Reboots the device to default settings prov ided by your ISP or the manufacturer. Choosing this option erases any custom setting s.

WARNING

Do not reboot the device using the Reset but ton on the back panel of the Best Data DSL542 to activate new changes. This butto n resets the device settings to the manufacturer’s default values. Any custom settings will be lost.

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5 Setting the LAN IP Address

This chapter describes how to configure the interfaces on the ADSL/Ethernet router that communicate with your LAN and USB computers.

Ethernet, USB, or Both?

If you are using the ADSL/Ethernet router with multiple PCs on your LAN, you must connect the LAN via an Ethernet hub to the device's LAN port, called eth-0.

If you are using a single PC with the ADSL/Ethernet router, you have two options for connecting it to the device:

f You can connect the PC directly to the LAN port using a crossover Ethernet cable.

See Appendix A, “Troubleshooting“ for a description of crossover versus straightthrough Ethernet cables.

f If the PC is USB-enabled, you can connect it directly to the device's USB port,

called usb-0. Only one computer can be connected in this manner.

You can also use the USB and Ethernet ports simultaneously, connecting your LAN to the Ethernet port and a standalone PC to t he USB port. (U SB port is an o ption)

You must assign a unique IP address to each device p ort that y ou use.

The instructions that follow assume that the device has been preconfigured to operate in Routing mode, which uses the IP protocol to determine how to exchange data among your PCs, the device, and your ISP. If your device i s confi gured in Bridging

Note

mode, its ports do not require IP addresses. The operating mode displays at the top of the LAN Configuration page and cannot be changed by the user.

Configuring the LAN IP Address

The LAN IP address identifies the LAN port (eth-0) as a node on your network; that is, its IP address must be in the same subnet as the PCs on your LAN.

A network node can be thought of as an y interface where a device connects to the network, suc h as the Best D ata DSL54 2’s

Definition

You can change the default to reflect the set of IP addresses that you want to use with your network.

If your network uses a local DHCP server (other than the ADSL/Ethernet router) to assign IP addresses, you can configure the device to accept and use a LAN IP address assigned by that server. In this mode, the ADSL/Ethernet router is considered a DHCP client of your DHCP server.

LAN port and the network interface card s on your PCs.

Note

The Best Data DSL542 itself can function as a DHCP server for your LAN computers, as described in Cha pter 5, but not for its own LAN port.

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Follow these steps to change the default LAN IP address or to configure the LAN port as a DHCP client.

1. Log into Configuration Manager, and then cli ck the LAN tab.

The LAN Configuration page displays, as shown in Figure .

Figure 13. LAN Configuration Page

The LAN Configuration table displays the following settings:

Setting

System Mode

LAN IP Address

LAN Network Mask

Use DHCP

Description

The preconfigured mode for your device, such as Routing or Bridging mode. This setting is not user configurable.

The IP address your computers use to identify the device’s LAN port.

Note that the public IP addre ss as signe d to y ou by y our ISP is not your LAN IP address. The pu blic IP address identifies the WAN (ADSL) port on your ADSL/Ether net router to the Internet.

The LAN Network mask identifies which parts of the LAN IP Address refer to y our ne twork as a whol e and which parts refer specifically to nodes on the network.

Your device is preconfigured with a default network mask of 255.255.255.0.

When checked, this setting instructs the device to accept LAN IP information assigned dynamically from another DHCP server already con figured on your network. The Best Data DSL542 cannot act as a DHCP server for its own LAN port.

2. Enter a LAN IP address and networ k mask, or click the DHCP Enable radio

button.

f Entering a fixed address: If you are using routing services on you LAN

such as DHCP and NAT, you will want to assign a fixed LAN IP address an d mask. This ensures that your LAN computers have a fixed address that they use to communicate with the device.

The IP address you assign must be on the same subnet as your LAN computers that connect to this port (th at is, the n etwork ID po rtion of th eir IP addresses and their subnet masks must be the same).

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You may need to update the DHCP configuration so that the addresses that the DHCP server dynamically assigns to your comp uters are on the same subnet as the new LAN IP address. S ee Chapter 6 for inst ructions on changing the pool of dynamically assigned addresses. In addition, if you change the DHCP pool, you will also n eed to upda te the NAT c onfigurat ion so the new IP addresses are translated properly. See Chapter 7 for instructions on NAT.

f Enabling DHCP: If another computer on your LAN provides DHCP services

for your network, you can click the U se DHCP che ckbox to enable th e LAN port to accept a dynamically assigned address from the server. Check with your ISP to determine if this is advi sable.

When you click the Enable radio b utton, t he LAN Ne twork Mask fie ld will be dimmed (made unavailable for en try ). The LAN IP A ddress field will re main editable, however. The address th at you spe cify he re will be used a s a requested IP address from the DHCP server. This is referred to as a "Configured IP Address" in the program. If the configured IP address is not available from the DHCP server, the serve r will dis tribute another address to the LAN port. Even if another number is assigned, the same configured IP address will continue to display in this fiel d.

For a description of how DHCP works, see Chapter 6.

3. Click

f If you were using an Ethernet connection for the current session, and changed

the IP address, the connection will be terminated .

f If you are currently using the USB interface, a page will display to con firm your

change and your connection will re main a ctive.

f If you enabled the DHCP service, the ADSL/Ethernet router will initiate a

request for an IP address from your LAN's DHCP server. Assuming a different IP address is assigned, your curr ent conne ction wi ll be t erminated .

4. Reconfigure your PCs, if necessary, so that their IP addresses place them in the

same subnet as the new IP address of the LAN port.

5. Log into Configuration Manager by typing the new IP address in your Web

browser’s address/location box.

If you enabled DHCP, you may need to check the DHC P server on your LAN to determine the IP address actually assigned to the LAN port.

6. If the new settings work properly click the Admin tab, and then click

Reboot

in the task bar.

7. Click

to save your changes to permanent memory.

Commit &

Configuring the USB Port IP Address

1. If the LAN Configuration page is not already displaying, click the LAN tab.

2. In the USB Configuration table, enter the IP Address and Network Mask for the

USB port.

The IP address must place the USB port in the same subnet as the USB computer; If you are using both the LAN port and the USB port, how ever, the USB port and USB computer must not be in the same subnet as the LAN port or t he compu ters atta ched to it.

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For example, you could assign the following IP addresses to the LAN and USB ports (both assume a network mask of 255.255.255.0):

LAN USB

Port IP Address

192.168.1.1 192.168.1.x (x = 3-254)

192.168.1.2 192.168.1.x

Computer(s) IP Address(es)

3. Click

f If you are currently communicating with the device via the USB interface, then

the connection will be terminated, be cause th e IP addr ess that the conne ction was using has now changed.

f If you are currently using the Ethernet interface, a page will display to confir m

your change and your connection will remain active.

4. If necessary, reconfigure your USB PC so that its IP address places it in the same

subnet as the new IP address of the USB port.

5. Log into Configuration Manager by typing the new USB port IP address in your

Web browser’s address/locat i on box.

6. If the new settings work properly click the Admin tab, and then click

Reboot

in the task bar.

7. Click

to save your changes to permanent memory.

Commit &

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6 Configuring Dynamic Host Configuration

Protocol

You can configure your netw ork a nd Best D ata DS L 542 to u se the Dy namic H o st Configuration Protocol (DHCP). This chapter provides DHCP instructions for implementing it on your network.

The device can be configured as a DHCP server, DHCP relay agent, or, in some cases, a DHCP client.

You can input settings for both DHCP server and DHCP relay mode, and then activate either mode at any time. De-activated

Note

Configuring DHCP Server

Note

First, you must configure your PCs to accept DHCP information assigned by a DHCP server:

1. Open the Windows Control Panel and display the c omputer's Networking properties. Configure the TCP/IP properties to "Obtain an IP address automatically" (the actual text may vary depending on your operating system).

Next, you define the pools of IP addres ses y ou want to make ava ilable for distrib ution to your computers. These addresses can b e multiple public a ddresse s that y ou have purchased from your ISP, but are typically private addresses that you create. (LAN administrators often create private IP addresses for use only on their networks.

2. Log into Configuration Manager, click the LAN tab, and t hen click the task bar.

settings are retained for your future u se.

By default, the device is configured as a D HCP server, wi th a predefined IP address pool of 192.168.1.2 through 192.168.1.13 (subnet mask 255.255.255.0). To change this range of addresses, see “Viewing, modifying, and deleting address pools” on page 25.

DHCP Server in

The DHCP Server Configuration page displays, as shown in Figure 15.

Each pool you create displays in a row on the table on this page. You can create up to eight pools ; howeve r, most u sers will need to crea te only one f or their

LAN. Some users many want to create another that distributes an IP address to their USB computer, which must be in a different subnet than the LAN computers.

Figure 14. DHCP Configuration Page

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3. To add an IP address pool, click .

The DHCP Server Pool – Add page displays, as shown in Figure 16.

Figure 15. DHCP Server Pool – Add Page

4. Enter the Start IP Address, End IP Address, Net Mask, and Gateway Address fields are required; the other s ar e optio nal . Th e fol l o win g tabl e describes each field.

Field Description

Start/End IP Addresses

Mac Address

Specify the lowest and highest addresses in the pool.

Use this field only if you want to ass ign a specific IP address to a specific compu ter (that is, you are creating an exception to the dynamic assignment of addresses). The IP address you specify will be assigned to the computer that corresponds to this MAC address. (A MAC address is a manufacturer-assigned hardware ID that is unique for each device on a network.) If you type a MAC address here, you must have specified the sam e IP address in both the Start IP Address and End IP Address fields.

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Field Description

Net Mask

Specifies which portion of each IP address in this range refers to the network and which portion refers to the host (computer). You can use the network mask to distinguish which pool of addresses should be distributed to a particular subset of computers on your LAN (called a subnet).

Domain Name

A user-friendly name that refers to the group of computers (subnet) that will be assigned addresses from this pool.

Gateway Address

The address of the default gateway for computers that receive IP addresses from this pool. The default gateway is the IP address that the computers first contact to communicate with the Internet. Typically, it is the device’s LAN port IP address.

DNS/SDNS Address

The IP address of the Domain Name System server and Secondary Domain Name System server to be used by

computers that receive IP addresses from this pool. These DNS servers translate common Internet names that you type into your web browser into their equivalent numeric IP addresses. Typic ally , the se servers are located with your ISP.

SMTP...SWINS (optional)

The IP addresses of devices that pe rform various services for computers that receive IP addresses from this pool (su ch as the SMTP, or Simple Mail Transfer Protocol, server which handles e-mail traffic). Contact your ISP for these addresses.

5. Click .

A confirmation page displays briefly to in dicate th at the poo l has been add ed successfully. After a few seconds, the DHCP Server Pool – Add page displays with the newly added pool.

6. Follow the instructions in “Setting the DHCP Mode” on page 28 to set the DHCP mode to DHCP Server.

Viewing, modifying, and deleting address pools, and excluding IP addresses from a pool

To view, modify, or delete an existing address pool, display the DHCP Server Configuration page, and click the icons in the corresponding row in the address pool table.

f To delete an IP address pool, click f To view details on an IP address pool, click

, then submit and commit your changes .

. A page displays with all the same

information you entered when adding the pool. To modify the domain name associate d with an IP address pool, or to exc lude

addresses from the pool, click

. The DHCP Server Pool – Modify page displays,

as shown in Figure .

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Figure 16. DHCP Server Pool – Modi fy Pa ge

Excluded addresses are those that you have designated for fixed use with specific devices, or for some other reason do not want to make available to your network.

To exclude an address from distribution, type it in t he field s provided and click

. Click

after entering your changes. Be sure to use the Commit feature to save your

changes to permanent memory, as described on page 17.

Viewing current DHCP address assignments

When the Best Data DSL542 functions as a DHCP server for your LAN, it keeps a record of any addresses it has leased to your computers. To view a table of all current IP address

assignments,

display the DHCP Server Configuration page, click .

A page displays similar to that shown in Figure :

Figure 17. DHCP Server Address Table Page

The DHCP Server Address Table lists any IP addresses that are currently leased to LAN devices. For each leased address, th e table lists the follow ing information :

Field Description

IP Address Netmask

The address that has been leased from the pool.

The network mask associated with the leased address, which identifies the network ID and host ID por tions of the address (see Appendix A).

Mac Address A hardware ID for the device to which th e numbe r

has been assigned.

Pool Start The lower boundary of the address pool

(provided to identify the pool from which the leased number came).

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Field Description

Address Type

Static or Dynamic. Static indicates that the IP number has been assigned permanently to the specific hardware device. Dynamic indicates that the number has been leased temporarily for a specified length of time.

Time Remaining

The amount of time left for the device to u se the assigned address.

Configuring DHCP Relay

Some ISPs perform the DHCP server function for their customers’ home/small office networks. In this case, you can configure the device as a DHCP relay agent. When a computer on your network requests Internet access, the Best Data DSL542 contacts your ISP to obtain an IP address (and othe r information) , and then forwards that inform ation to the computer.

First, you must configure your PCs to accept DHCP information assigned by a DHCP server:

1. Open the Windows Control Panel and display the computer's Networking properties. Configure the TCP/IP properties to "Obtain an IP address automatically" (the actual text may vary depending on your operating system).

Next, you specify the IP address of the DHCP server and select the interfaces on your network that will be using the relay service.

2. Log into the Configuration Manager, click the LAN tab, and then click in the task bar.

The DHCP Relay Configuration page displays, as shown in Figure 19.

DHCP Relay

Figure 18. DHCP Relay Configuration Page

3. Type the IP address of your ISP’s DHCP server in the fields provided.

If you do not have this number, it is not es sential to enter it h ere. Reque sts for IP information from your LAN will be pas sed to the default g ateway , which shou ld rou te the request appropriately.

4. If the interface named eth-0 is not already dis playing, select it from the dropdown list and click

The eth-0 interface specifies that your default Ethernet (LAN) interface is running DHCP relay for your LAN. Typically, this is the only interface you need to specify here. If the Best Data DSL542 has additional interfaces that you want to perform DHCP relay, you can select and add them.

(You can also delete an interface from the table by clicking

in the right column.)

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5. Click .

A page displays to confirm your changes, and then the program returns to the DHCP Relay Configuration page.

6. Follow the instructions in “Setting the DHCP Mode” on page 28 to set the DHCP mode to DHCP Relay.

Setting the DHCP Mode

You should set the DHCP mode only after you have configured DHCP relay or DHCP server settings. See “Configuring DHCP Server” on page 23 or “Configuring DHCP Relay” on page 27 for additional instruction s.

Follow these instructions to set the DHCP mode:

1. Click the LAN tab, and then click DHCP Mode in the task bar.

2. From the DHCP Mode drop-down list, choose DHCP Server, DHCP Relay, or none.

If you choose none, your LAN compute rs must be configu red w ith static I P addresses.

3. Click

4. Click the Admin tab, and then click Commit & Reboot in the task bar.

5. Click

to save your changes to permanent memory.

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7 Configuring Network Address Translation

This chapter provides Network Address Translation (NAT) instructions for modifying the default configuration on your device.

Your Default NAT Setup

By default, NAT is enabled, with a napt rule configured to perform the following translation:

These private IP addresses: ...are translated to:

192.168.1.3

192.168.1.4

. . .

192.168.1.34

For a description of napt rules, see page 33. This default NAT setup assumes that, on each LAN computer, you configured TCP/IP prope rties as follo w s:

f You selected the check box that enables them to receive their IP addresses

automatically (that is, to use a DHCP server); or,

f You assigned static IP addresses to your PCs in the range 192.168.1.3 through

192.168.1.34.

If your computers are not configured in on e of the se ways , you can either change the IP addresses on your computers to match the NAT se tup or dele te this NAT rule and add a new one that matches the addresses y ou assigned to your compu ters (see “Adding NAT Rule s” on page 33 for instructions).

Your ISP-assigned

public IP address

Viewing NAT Global Settings and Statistics

To view your NAT settings, log into Con figuration Manager , click th e Servic es tab . The NAT Configuration page displays by default, as shown in Figure .

Figure 19. NAT Configuration Page

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The NAT Configuration page contains the following elements:

f The NAT Options drop-down list, which provides access to the Global Information page

(shown by default), the NAT Rule Config uration page , and the NAT Transla tions pag e, which shows current translations.

f Enable/Disable radio buttons, which allow you to turn on or off the NAT feature. f The NAT Global Information table, which displays the following settings that apply to all

NAT rule translations:

Field Description

TCP Idle Timeout (sec)

TCP Close Wait (sec)

TCP Def Ti me o u t (s ec)

UDP Timeout (sec)

ICMP Timeout (sec)

GRE Timeout (sec)

Default Nat Age (sec)

NAPT Port Start/End

For a NAT translation session on data that uses the TCP protocol, the translation will no longer be performed if no matchi ng da ta packets are received after the specified time has elapsed.

For a NAT translation on data using the TCP protocol, after a communication session has been closed, the translation will no longer be performed if n o matching data packets are received after the specified time has elapsed.

For a NAT translation session on data that uses the TCP protocol, the translation will no longer be performed if no matchi ng da ta packets are received after the specified time has elapsed.

Same as TCP Idle Timeout, but for UDP packets.

Same as TCP Idle Timeout, but for ICMP packets.

Same as TCP Idle Timeout, but for GRE packets.

For all other NAT translation sessions, the number of seconds after which a translation session will no lo nger b e valid .

When a napt rule is defined, the source ports will be transl ated to sequ e ntia l numbers in this range.

If you change any values, click

, and then click the Admin tab and commit your

changes to permanent system memory ( see page 17) . You can click

to view accumulated data on how m any NAT rule s have been invoked and how much data ha s been tran slated . A page similar to the one is s hown in Figure displays.

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Figure 20. NAT Rule Global Statistics Page

The table provides basic information for each NAT rule you have set up. You can click to restart the accumulation of the statistics at their initial values.

Viewing NAT Rules and Rule Statistics

To view the NAT rules currently defined on your sy stem, se lect NAT Rule Entry in the NAT Options drop-down list. The NAT Rule Co nfiguration page di splay s, as shown in Figure .

The NAT Rule Configuration table displays a row containing basic information for each rule. For a description of these fields, refer to the instru ctions for ad ding rules (pag es 33 through 39).

From the NAT Rule Configuration page, you can click in the right column to delete (

To view data on how often a specific NAT rule has been used, click column. A page similar to the one show in Figure displays:

Figure 21. NAT Rule Configuration Page

to add a new rule, or use the icons

) or view details on ( ) a rule.

in the Action(s)

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Figure 22. NAT Rule Statistics Page

The statistics show how many times this rule has been invoked and how many currently active sessions are using this rule. You can click

to reset the statistics to zeros and

to display newly accumulated data.

Viewing Current NAT Translations

To view a list of NAT translations that have recently been performed and which remain in effect (for any of the defined rules), select NAT Translations from the NAT Options drop-down list. The NAT Translations page display s, as shown in Figure :

Figure 23. NAT Translations Page

For each current NAT translation session, the table contains the following fields:

Field Description

Trans Index

Rule ID Interface

Protocol

Alg Type

NAT Direction

Entry Age

The sequential number assigned to the IP

session used by this NAT translation session.

The ID of the NAT rule invoked.

The device interface on which the NAT rule was

invoked (from the rule definition).

The IP protocol used by the data packets tha t

are undergoing translations (from the rule

definition) Example: TCP, UDP, ICMP.

The Application Level Gateway (ALG), if any,

that was used to enable this NAT translation

(ALGs are special settings that certain

applications require in orde r to wo rk while NA T is

enabled).

The direction (incoming or outgoing) of the

translation (from the port definition).

The elapsed time, in seconds, of the NAT

translation session.

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You can click in the Action(s) column to view additional details abou t a NAT tran slation session, as shown in Figure .

Figure 24. NAT Translation – Detai ls Pa ge

In addition to the information disp layed in the NAT Tr anslation s table, t his table display s the following for the selected current translatio n session s:

Field Description

Translated InAddress

In Address Out Address

In/Out Packe ts

In Ports

Out Ports

Translated In Ports

The public IP address to which the private IP address was translated.

The private IP address that was translated. The IP address of the outside destination (web,

ftp site, etc.) The number of incoming and outg oing IP

packets that have been tra nslate d in thi s translation session.

The actual port number correspondin g to the LAN computer.

The port number associated with the destination address.

The port number to which the LAN computer’s actual port number was translated.

Adding NAT Rules

This section explains how to create rules for the various NAT flavors.

You cannot edit existing NAT rules. To change a rule setup,

Note

The napt rule: Translating between p rivate and pub lic IP addresses

Follow these instructions to crea te a rule f or transla ting the pr ivate IP addresses on y our LAN to your public IP address. This type of r ule uses the NAT fla vor napt, wh ich was u sed in y our default configuration. The napt flavor translates private source IP addresses to a single public IP address. The napt rule also translate s the sou rce port nu mbers to port numbers that are defin ed on the NAT Global Configuration page (see pa ge 29).

delete it and add a new rule with the modified settings.

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Click the NAT tab, then select NAT Rule Entry from the NAT Option s drop-dow n list on the right side of the page.

The NAT Rule entry page displays a row for each currently configured NAT rule.

1. Click

to display the NAT Rule – Add page.

The NAPT flavor displays by default in the Rule Flavor drop-down list. The NAT Rule – Add page displays, as shown in Figure .

Figure 25. NAT Rule – Add Page (napt Flavor )

2. Enter a Rule ID. The Rule ID determines the order in which rules are invoked (the lowest numbered rule is

invoked first, and so on). In some cases, two or more rule s may be defined to act on the same set of IP addresses. Be sure to assign t he Rule ID so that the h igher priority ru les are invoked before lower-priority rules. It is recommended that you select rule IDs as multiples of 5 or 10 so that, in the future, you can insert a rule between two existing rules.

Once a data packet matches a rule, the data is acted upon according to that rule and is not subjected to higher-numbered rules.

3. From the IFName drop-down list, select the interface on the de vi c e to which this ru le applies.

Typically, NAT rules are used for communication between your LAN and the Internet. Because the device uses the WAN interface (which may be named ppp-0 or eoa-0) to connect your LAN to your ISP, it is the usual IFName selection.

4. In the Local Address From field and Local Address To fields, type the starting and ending IP addresses, respectively, of

the range of private address you want to be

translated. Or, type the same address in both fields to specify a single value.

To specify that data from all LAN addresse s should be transla ted, ty pe 0 (zero) in each From field and 255 in each To field.

If you have several non-sequential private ad dresses , you ca n create an additiona l napt rule for each address.

These addresses should correspond to private addresses already in use on your network (either assigned statically to your PCs, or assigned dynamically using DHCP).

5. In the Global Address From and Global Address To fields, type the public IP address assigned to you by your ISP.

If you have multiple WAN interfaces, in both fie lds type the IP addres s of the in terface to which this rule applies. This rule w ill not be enforced for data that ar rives on othe r PPP interfaces.

If you have multiple WAN interfaces and want the rule to be enforced on a range of them, type the starting and ending IP addre sses o f the range.

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6. When you have completed entering all information, click .

A page displays to confirm the change.

7. Click

to return to the NAT Configuration page.

The new rule should display in the NAT Rule Configuration table.

8. Ensure that the Enable radio button is selected, and then click

A page displays to confirm y our change s.

9. Click the Admin tab, and then click

10. Click

to save your changes to permanent memory.

Commit and Reboot in the task bar.

The rdr rule: Allowing external access to a LAN computer

You can create an rdr rule to make a computer on your LAN, such as a Web or FTP server, available to Internet users without requiring you to obtain a public IP address for that computer. The computer’s private IP address is translated to your public IP address in all incoming and outgoing data packets.

Without an rdr rule (or bimap rule described on page 39 ), the Best Data DSL542 blocks attempts by external computers to access

Note

your LAN computers.

Figure shows the fields used to establish a rdr rule:

Figure 26. NAT Rule – A dd Pa ge (rdr Flavor)

Follow these instructions to add an rdr rule (see steps 1-4 under "The napt rule" on page 33 for specific instructions corresponding to steps 1 and 2 below):

1. Display the NAT Rule – Add Page, select RDR as the Rule Flavor, and enter a Rule ID.

2. Select the interface on which this rule will be effective.

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3. Select a protocol to which this rule applies, or choo se ALL.

This selection specifies which ty pe of Interne t communica tion wi ll be subjec t to this translation rule. You can select ALL if the ru le applie s to all data. Or , select TCP , UDP, ICMP, or a number from 1-255 that represents the IANA-specified protocol number.

4. In the Local Address From and Local Address To fields, type the same private IP address, or the lowest and highest addresses in a range:

f If you type the same IP address in both fields, incoming traffic that matches the

criteria you specify in steps 5 and 6 w ill be redirect ed to that IP address .

f If you type a range of addresses, incoming traffic will be redirect ed to any available

computer in that range. This option w ould ty pically be used for load balan cing, whereby traffic is distributed among several redundant servers to help ensure efficient network performance.

These addresses should correspond to private addresses already in use on your network (either assigned statically to your PCs or assigned dynamically using DHCP).

5. In the Global Address From and Global Address To fields, type the public IP address assigned to you by your ISP.

If you have multiple WAN (PPP) interfaces, this rule will not be enforced for data that arrives on other PPP interfaces. This rule w ill not b e enforced for data that a rrives o n WAN interfaces not specified here.

If you have multiple WAN interfaces and w ant the rule to be enfo rced on mo re than one of them (or all), type the starting and ending IP addresses of the range.

6. In the Destination Port From and Destination Port To fields, enter the port ID (or a range) that you expect to see on incoming packets destined for the LAN computer for which this rule is being created.

Incoming traffic that meets this criter ia will be redirect ed to the Loca l Port numb er you specify in the next field.

For example, if you grant public acce ss to a We b server on your LAN , you w ould expec t that incoming packets destined for that computer would contain the well-known web server port number, 80. This setting serves as a filter; data packets not containing this port number would not be granted access to y ou local compu ter.

7. If the LAN computer that you are making publicly available is configured to use a nonstandard port number for the type of traffic it receives, type the non-standard port number in the Local Port field.

This option translates the standard port number in packets destined for your LAN computer to the non-standard number you specify. For ex ample, if y our Web server uses (nonstandard) port 2000, but you expect incoming data packet s to refer to (standard ) port 80, you would enter 2000 here and 80 in the Destination Port fields. The headers of incoming packets destined for port 80 will be modified to refer to port 2 000. The packet can th en be routed appropriately to the web server.

8. Follow steps 7-12 under "The napt rule" on page 33 to submit your changes.

The basic rule: Performing 1:1 translations

The basic flavor translates the private (LAN-side) IP address to a public (WAN-side) address, like napt rules. However, unlike napt rules, basic rules do not also translate the port numbers in the packet header; they are passed through un translated . Theref ore, the ba sic rule does not provide the same level of security as the napt rule. Figure shows the fields used for adding a basic rule.

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Figure 27. NAT Rule – Add Page (basic Flavor)

Follow these instructions to add an basic rule (see steps 1-4 under "The napt rule" on page 33 for specific instructions correspond ing to step s 1 an d 2 below ):

1. Display the NAT Rule – Add Page, select BASIC as the Rule Flavor, and enter a Rule ID.

2. Select the interface on which this rule will be effective.

3. Select a protocol to which this rule applies, or choo se ALL.

4. In the Local Address From and Local Address To fields , type the starting and ending IP addresses that identify the range of private address you want to be translated. Or, type the same address in both fields.

If you specify a range, each addres s w ill be tra nslated in sequen ce to a corre sponding address in a range of global addresses (which you specify in step 5).

You can create a basic rule for each specific a ddres s transla tion to oc cur. The r ange of addresses should correspond to private addresses already in use on your network, whether assigned statically to your PCs, or assigned dynamically using DHCP.

5. In the Global Address From and Global Address To fields, type the starting and ending address that id entify the pool of public IP addresses that the private addresses should be translated to. Or, type the same address in bot h fields (if you also specified a single address in step 4).

6. Follow steps 7-12 under "The napt rule" on page 33 to submit your changes.

The filter rule: Configuring a basic rule with additional criteria

Like the basic flavor, the filter flavor translates public and private IP addresses on a one-to-one basis. The filter flavor extends the capab ility of the basic rule. Refe r to “The basic Rule” o n page 36 for a general description.

You can use the filter rule if you want an address translation to occur only when your LAN computers initiate access to specific destinations . The destinations can be identified by their IP addresses, server t ype (such as FTP or Web server) , or both. Figure shows the fields used to establish a filter rule.

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Figure 28. NAT Rule⎯Add Page (filter Flavor)

Follow these instructions to add a filter rule (see steps 1-4 under "The napt rule" on page 33 for specific instructions corresponding to steps 1 and 2 below):

1. Display the NAT Rule – Add Page, select FILTER as the Rule Flavor, and enter a Rule ID.

2. Select the interface on which this rule will be effective.

3. Select a protocol to which this rule applies, or choo se ALL.

This selection specifies which ty pe of Interne t communica tion will b e subjec t to this translation rule. You can select ALL if the ru le applie s to all data. Or , select TCP , UDP, ICMP, or a number from 1-255 that represents the IANA-specified protocol number.

If you specify a range, each addres s w ill be tra nslated in sequen ce to a corre sponding address in a range of global addresses (which you specify in step 5).

The address (or range of addresses) should correspond to a private addresses (or addresses) already in use on your network. These may be assigned statically to your PCs or assigned dynamically using DHCP.

5. In the Global Address From and Global Address To fields, type the starting and ending address that identify the range of public IP addresses to translate your private addresses to. Or, type the same address in both fields (if you also specified a single address in step 4).

6. Specify a Destination Address or addresses, Destination Port (or ports), or both. You can specify a single value by entering that value in both fields.

f Specify a destination address (or range) if you want this rule to apply only to outbound

traffic to the address (or range). If you enter only the network ID portion of the d estination addre ss, then the rule w ill

apply to outbound traffic to all computers on network.

f Specify a destination ports (or range) if you wan t this rul e to apply to any outbound

traffic to the types of servers identified by that port number. Port number assignments are maintained in RFCs maintained by IANA. Common

port numbers include: 20, 21—FTP (file transfer protocol) ser ver 25—SMTP (simple mail transfer protocol) server 80—HTTP (World Wide Web) server

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f Specify both a destination address (or range) and a destin ation port (o r range) if you

want this translation rule to apply to accesses to the specified server type at the specified IP address or network.

7. Follow steps 7-12 under "The napt rule" on page 33 to submit your changes.

The bimap rule: Performing two-way translations

Unlike the other NAT flavors, the bimap flavor performs address translations in both the outgoing and incoming directions. Figure shows the fields used to establish a bimap rule.

Figure 29. NAT Rule – Add Page (bimap F lavor)

Follow these instructions to add a bimap rule (see steps 1-4 under "The napt rule" on page 33 for specific instructions correspond ing to step s 1 an d 2 below ):

1. Display the NAT Rule – Add Page, select BIMAP as the Rule Flavor, and enter a Rule ID.

2. Select the interface on which this rule will be effective.

3. In the Local Address field, type the private IP address of the computer to which you are granting external access.

4. In the Global Address field, type the address that you want to serve as the publicly known address for the LAN computer.

5. Follow steps 7-12 under "The napt rule" on page 33 to submit your changes.

The pass rule: Allowing specific addresses to pass through untranslated

You can create a pass rule to allow a range of IP addresses to remain untranslated when another rule would otherwise do so.

Figure 30. NAT Rule – Add Page (pass Flav or)

The pass rule must be assigned a rule ID that is a lower number than the ID assigned to the rule it is intended to pass. In you want a specific IP address or range of addresses to not be

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subject to an existing rule, say rule ID #5, then you ca n create a pass rule w ith ID # 1 through #4.

Follow these instructions to add a pass rule (see step s 1-4 und er "The napt rule" on page 33 for detailed instructions corresponding to steps 1 and 2 below):

1. Display the NAT Rule – Add Page, select PASS as the Rule Flavor, and enter a Rule ID.

2. Select the interface on which this rule will be effective.

3. In the Local Address From and Local Address To fields, type the lowest and highest IP addresses that define the range of private address you want to be passed without translation.

If you want the pass rule to act on only one address, type that address in both fields.

4. Follow steps 7-12 under "The napt rule" on page 33 to submit your changes.

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8 Configuring IP Routes

You can use Configuration Manager to d efine spe cific routes for your Internet and netw ork data. This chapter provides instructions for creating routes.

Most users do not need to define IP routes. On a ty pical small h ome or off ice LAN, the existin g routes that set up the default gateway s for your LAN c omputers an d for the Best D ata DSL5 42 provide the most appropriate path for all your Internet traffic.

f On your LAN computers, a default gateway directs all Internet t raffic to the LAN port on

the Best Data DSL542. Your LAN computers know their def ault gatew ay eithe r because you assigned it to them when you modified their TCP/IP properties, or because you configured them to receive the information dynamically from a server whenever they access the Internet.

f On the Best Data DSL542 itself, a default gateway is defined to direct all outbound

Internet traffic to a router at your ISP. This default gatew ay is assigne d automati cally by your ISP whenever the device negotiate s an Int ernet co nnection.

You may need to define routes if your ho me setup include s two or more network s or subnet s, if you connect to two or more ISP services, or if you connect to a rem ote corpor ate LAN.

Viewing the IP Routing Table

All IP-enabled computers and routers maintain a table of IP addresses that are commonly accessed by their users. For each of th ese destin ation I P addresse s, the tab le lists the IP addre ss of the first hop the data should take. This table is known as the device’s routing table.

To view the Best Data DSL542’s routing tab le, click th e Routing tab. The IP Route Ta ble disp lays, as shown in Figure 32.

The IP Route Table displays a row for each existing route. These include routes that were predefined on the device, routes you may have added, and routes that the device has identified automatically through communication with other devices.

The routing table should reflect a default gateway, which directs outbound Internet traffic to your ISP. This default gateway is show n in the row contain ing destin ation ad dress 0.0.0 .0.

The following table defines the fields in the IP R outing Ta ble.

Figure 31. IP Route Table Page

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Field Description

Destination

Netmask

NextHop

IFName

Route Type

Route Origin

Action

Specifies the IP address of the destination computer. The des tinatio n can specified as the IP address of a speci fic comp uter or an en tire network. It can also be specified as all zeros to indicate that this route should be used for all destinatio ns for whi ch no o ther rou te is define d (this is the route that creates the defaul t g atewa y ).

Indicates which parts of the destination address refer to the network and which parts refer to a computer on the ne two rk. The de fault gateway uses a netmask of 0 .0. 0.0.

Specifies the next IP address to send da ta to w h en its fi nal de st in ati on is that shown in the destination column.

Displays the name of the interface on the de vice through which data is forwarded to the specified next hop.

Displays whether the route is direct or indirect. In a direct route, the source and destination compute rs are o n the same networ k, and the router attempts to directly deliver the da ta to the compu ter. In a n indirect route, the source and destination computers are on different networks, and the router forwards data to a device on another network for further handling.

Displays how the route was defined. Dynamic indicates that the route was created automatically or predefined by your ISP or the manufacturer. Routes you create are labeled Local. Other routes can be created automatically (usin g RIP, as de scrib ed in Ch apter 8 ), or defined remotely through various network management protocols (LCL or ICMP).

Displays an icon (

) you can click on to delete a route.

Adding IP Routes

Follow these instructions to add an IP route to the routing table.

1. From the IP Route Table page, click

The IP Route – Add page displays, as shown in Figure 33.

Figure 32. IP Route – Add Page

2. Specify the destination, network mask, and gateway or next hop for this route.

To create a route that defines the default gateway for your LAN, enter 0.0.0.0 in both the Destination and Net Mask fields. Enter your ISP’s IP address in the Gateway/NextHop field.

Note that you cannot specify the interface name, route type or route origin. These parameters are used only for routes that are identified automatically as the device communicates with other routing devices. For routes you create, the routing table displays system default values in these fields.

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4. On the confirmation page, click

The IP Routing Table will now disp lay the new route .

5. Click the Admin tab, and then click

6. Click

to save your changes to permanent memory.

Commit & Reboot in the task bar.

to return to the IP Route table page.

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9 Configuring the A TM VCC

As your LAN computers access the Interne t via the Best Da ta DSL542, da ta is ex changed with your ISP through a complex network of teleph one sw itches , Internet ro uters, se rvers, and other specialized hardware. These various devices communicate using a common language, or protocol, called Asynchronous Transfer Mode (ATM). On the Wide Area Network (WAN) that connects you to your ISP, the ATM protocol performs functions like those that the Ethernet protocol performs on your LAN.

This chapter describes how to configure the ATM virtual channel connection (VCC). The VCC properties define the path the Best Data DSL542 uses to communicate with your ISP over the ATM network.

Viewing Your ATM VC Setup

To view your current configuration, log into Configuration Manager, click the WAN tab, and then click

ATM VCC in the task bar. The ATM VCC Configuration page displays, as shown in Figure 34.

Figure 33. ATM VCC Configuration Page

The ATM VCC Configuration table displays the following fields (contact your ISP to determine these settings):

Field Description

Interface

Vpi, Vci, and Mux Type

Max Proto per AAL5

Actions

The name of the lower-l evel inte rface on wh ich this VC operates. The low-level interface names are preconfigured in the softwa re an d iden tify the type of traffic that can be supported , such as data or voice. Internet data services typically use an AAL5-type interface.

These settings identify a unique ATM data path for communication between your ADSL/Ethernet router and your ISP.

If you are using an AAL5-type of interface, this setting indicates the number of higher-level interfaces that the VC can support (the higher level interfaces can be PPP, EoA, or IPoA interfaces). Contact your ISP to de termine which connection protocol(s) they require.

Displays an icon ( the associated interface.

) you can click on to delete

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Adding ATM VCCs

You may need to create a VCC if none has be en predef ined on y our system o r if you us e multiple services with your ISP. Each service may require its own VCC. Follow these instructions to add a VCC:

1. From the ATM VCC Configuration page, click

The ATM VCC – Add page displays, as shown in Figure 35

Figure 34. ATM VCC – Add Page

2. Select an interface name from the VCC Interface drop-down list.

3. Enter the VPI and VCI values assigned by your ISP, and select the mux type from the drop-down list.

4. Click

5. On the confirmation page, click

6. Click the Admin tab, and then click

to return to the ATM VCC Configuration page.

Commit & Reboot in the task bar.

7. Click

to save your changes to permanent memory.

The new interface should now display in the ATM VCC Configuration table.

You may need to create a new WAN inter face, or m odify an existing in terface, so that it uses the new VCC. See the instructions for configuring a PPP (Chapter 10), EoA (Chapter 11), or IPoA (Chapter 12) interfaces, depending on the type y ou use to communic ate wit h your ISP.

You can verify that the new settings work by attempting to acce ss the Interne t from a LAN /USB computer. Contact your ISP for troubleshooting assistance.

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Modifying ATM VCCs

Your device may already be preconfigured with the ne cessary ATM VCC properti es, or the table may contain placeholder values that you must change before using the device. Contact your ISP to determine your ATM VCC values. Follow these instructions to modify a preconfigured VCC:

1. From the ATM VCC Configuration page, click in the Actions column for the interface you want to modify.

The ATM VCC Interface – Modify page displays, as shown in Figure 36.

Figure 35. ATM VCC Interface – Mo dify Page

2. Enter the new VPI and VCI values, select the MUX type, or change the maximum number of protocols that the VCC can carry, as directed by your ISP.

You cannot modify the interface type over which an existing VCC operates (aal5-0, for example). If you want to change the interface type, you must delete the existing interface, create a new one, and select the desired interface type.

3. Click

4. On the confirmation page, click

5. Click the Admin tab, and then click

6. Click

to return to the ATM VCC Configuration page.

Commit & Reboot in the task bar.

to save your changes to permanent memory.

7. You can verify that the new settings work by attempting to access the Internet from a LAN/USB computer. Contact you r IS P for tr oubleshooting assistance.

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10 Configuring PPP Interfaces

When powered on, the Best Data DSL542 initiates a connection through your DSL line to your ISP.

The point-to-point (PPP) protocol is commonly used between ISPs and their customers to identify and control various communication propert ies, inc luding:

f Identifying the type of service the ISP provides to a given customer f Identifying the customer to the ISP through a username and password login f Enabling the ISP to assign Internet information to the cu stomer’s computer s

Your ISP may or may not use the PPP protocol. Con tact y our ISP to de termine if y ou will need to change the default settings in order to connect to their s erver.

Viewing Your Current PPP Configuration

To view your current PPP setup, log into Configuration Manager, click the WAN tab, and then click

PPP in the task bar. The PPP Configuration page displays, as shown in Figure 37.

PPP is configured as a group of software settings a ssoc iated with th e ADSL por t. Altho ugh the device has only one physical ADSL port, t he Best Data D SL542 can be define d with more than one group of PPP settings. Each group of settings is called a PPP interface and is given a name, such as ppp-0, ppp-1, etc.

You can configure the following settings on the PPP Configuration page:

f Inactivity TimeOut (mins): The time in minutes that must elapse before a PPP

connection times-out due to inactivity.

f Ignore WAN to LAN traffic: When enab led, data traffic travelin g in the in coming

direction—from the WAN port to the LAN po rt—will not coun t as activi ty on the WAN port; i.e., it will not prevent the connectio n from be ing term inated if in active for the spe cified time.

Figure 36. PPP Configuration Page

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The PPP Configuration Table displays the follo wing fields:

Field Description

Interface VCC

IPF Type

Protocol

WAN IP

Gateway IP

Default Route

Use DHCP

User DNS

Oper. Status

Actions

The predefined name of the PPP interface. The Virtual Channel Connection over which this PPP

data is sent. The VCC identifies the phy sical path the data takes to reach your ISP.

The type of IP Firewall protections that are in effect on the interface (public, private, or DMZ):

A public interface connects to the Internet (PPP interfaces are typically public). Packets received on a public interface are subject to the most restrictive set of firewall p r o te c ti o ns d e fi n e d in the softwa r e.

A private interface connects to your LAN, such as the Ethernet interface. Packets received on a private interface are subject to a less restrictive set of protections, because they originate within the network.

The term DMZ (de-militarized zone), in Internet networking terms, refers to computers that are available for both public and in-netwo rk accesses (such as a company's public Web server). Packets incoming on a DMZ interface -- whether from a LAN or external source -- are subject to a set of protections that is in between public and private interface s in terms of restrictiveness.

The type of PPP protocol used. You r ISP may use PPP-over-Ethernet (PPoE) or PPP-over-ATM (PPoA).

The IP address currently assigned to your WAN (DSL) port by your ISP.

The IP address of the server at your ISP that provides you access to the Internet.

Indicates whether the ADSL/Ethernet router should use the IP address assigned to this connection as its default route. Can be Enab led or Disabl ed .

When set to Enable, the device will acquire additional IP information from the ISP's DHCP server. The PPP connection itself acquires the device 's IP address, mask, DNS address, and default gateway address. With Use DHCP enabled, the device will acquire IP addresses for various other server types (WINS, SMTP, POP3, etc. -- these server types are listed on the DHCP Server Configurati on pag e).

When set to Enable, the DNS address learned through the PPP connection will be distrib uted to clients of the device's DHCP server. This option is useful only when the ADSL /Eth ernet R ou ter is configured to act as a DHCP Server for y our LAN. When set to Disable, LAN hosts will use the DNS address(es) preconfigured in the DHCP pool (see “Configuring DHCP Server” on page 23)

Indicates whether the link is currently u p or down or if a specific type of data exchange is under way (e.g., password authorization or DHCP).

You can use these icons to modify ( and view additional details on (

), delete ( ),

) the PPP interface.

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Viewing PPP Interface Details

When you click to view additional details, the PPP Interface - Detail page displays, as shown in Figure 38

Figure 37. PPP – Detail Pa ge

In addition to the properties defined on page 49, he Detail page displays these fields:

Field Description

Status

Service Name

Indicates whether the interface has been specified in the system as:

Enabled: A connection will be established for use

when the device is turned on or rebooted.

Disabled: The PPP interface cannot curren tly be

used.

Start On Data: The PPP connection will be made only when data is sent to the in terface (e.g., whe n a LAN user attempts to use the Internet).

The name of the ISP service you are using with this PPP connection. ISPs may offer different ty pes of services (for example, for online gaming or busine ss communications), each requiring a different login and other connection properties.

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Field Description

Last Fail Cause

DNS

SDNS

Security Protocol

Indicates the action that ended the previous PPP session:

No Valid PADO Recvd: The unit initiated a PPoE handshake but did not receive a packet in reply from the ISP.

No Valid PADS Recvd: After the initial handshake, the unit did not receive a confirmation packet from the ISP.

Stopped by User: The user stopped the connection (for example, by changin g the C on figura tion Ma nag er settings for the PPP interface.)

No Activity: The PPP communication timed out, in accordance with the timeout period specified on the PPP Configuration page.

Auth Failure: The ISP could not authorize the connection based on the user name and/or password provided.

PADT recvd: The ISP issued a special packet ty pe to terminate the PPP connection.

VC down: The Virtual Circuit between the unit and the ISP is down.

Internal failure: A system software failure occurred. The IP address of the DNS ser ver (lo cated wi th y our

ISP) used on this PPP conn ecti on. The IP address of the secondary DNS server (located

with your ISP) used on this PPP connec tion. The type of PPP security your ISP uses: PAP (Password

Authentication Protocol) or CHAP (Challenge Handshake Authentication Protocol).

The name you use to log in to your ISP each time this PPP connection is established.

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Adding a PPP Interface Definition

If you intend to use more than one type of se rvice fr om y our ISP, the de vice may be co nfigured with multiple PPP interfaces, each with unique logon and other properties. Follow this procedure to define properties for a PPP interface:

1. From the PPP Configuration Page, click

The PPP Interface – Add page displays, as shown in Figure 39.

Figure 38. PPP Interface – Add Page

2. Select a PPP interface name from the drop-down list, and then enter or select data for each field.

You can create multiple PPP interfaces only if you are using the

Note

PPoA protocol; only one PPP interface can be define if you are using PPoE. Check with your ISP which version of the protocol they require.

The fields are defined in the tables on page 49 and 50.

3. Click

A page displays to confirm your changes.

4. Click

5. Click the Admin tab, and then click

6. Click

to return to the PPP page and view the new interface in the table.

Commit & Reboot in the task bar.

to save your changes to permanent memory.

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Modifying and Deleting PPP Interfaces

To modify a PPP interface, display the PPP Configuration page and click in the Action(s) column for the interface you want to modify. The PPP Interface – Modify page displays, as shown in Figure 40.

You can change only the status of the PPP connection, the security protocol, your login name, and your password. To modify the other se ttings, y ou must dele te the i nterface a nd create a n ew one.

To delete a PPP interface, display the PPP Configuration page and click column for the interface you want to delete . You sh ould no t delete a PP P inte rface unles s you have received instructions to do so from your ISP. Without an appropriately defined PPP interface, you will not be able to connect to y our ISP. You can recrea te the PPP interface w ith the s ame name at a later time.

Figure 39. PPP Interface – Modify

in the Action(s)

After modifying or deleting a PPP interface , click

Commit & Reboot in the task bar, and click to save your changes to permanent

. Then, Click the Admin tab, click

memory.

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11 Configuring EOA Interfaces

This chapter describes how to configure an Ethernet-over-ATM interface on the Best Data DSL542, if one is needed to communicate with your ISP.

Viewing Your EOA Setup

To view your current EOA configuration , log into Con figura tion Mana ger, click Advanced in the task bar, and then click

The EOA table contains a row for each EOA interface currently defined on the device. The table may contain no entries if your ISP does not use the EOA protocol.

The following table describes the fields on this page:

EOA. Figure 41 shows the EOA configuration page.

Figure 40. EOA Page

Field Description

Interface

IPF Type

Lower interface

The name the software uses to identify the EOA interface.

The type of IP Firewall protections in effect on the interface (public, private, or DMZ):

A public interface connects to the Internet (IPoA interfaces are typically public). Packets received on a public interface are subject to the most restrictive set of firewall p r o te c ti o ns d e fi n e d in the softwa r e.

A private interface connects to y our L AN, such as the Ethernet interface. Packets received on a private interface are subject to a less restrictive set of protections, because they originate within the network.

The term DMZ (de-militarized zone), in Internet networking terms, refers to computers that are available for both public and in-netwo rk accesses (such as a company's public Web server). Packets incoming on a DMZ interface—whether from a LAN or external source—are subject to a level of pro tectio n that is in between those for public and pri vate interfaces.

EOA interfaces are defined in software, and then associated with lower-level software and hardware structures (at th e lo west level , t hey are asso ciate d with a physical port —the WAN port). This field should reflect an interface name defined in the next lower level of software over which the EOA interface will operate. This will be an ATM VCC i nterface, su ch as aal5-0.

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Field Description

Config IP Addre ss and

Net Mask

Use DHCP

Default Route

Status

Action

The IP address and network mask you want to assign to the interface. If the interface will be used for bridging with your ISP and you wi ll not be using the Best Data DSL542 as a rou te r on y our LA N, th en y o u do not need to specify IP inform ation. If y ou enable DHCP for this interface, then the Configured IP address will serve only as a request to the DHCP server. The actual address that is assigne d by the ISP may differ if this address is not available.

When checked, this setting instructs the device to accept IP information assigned dy namica lly by your ISP’s DHCP server. If the interface will be used for bridging with your ISP and you wi ll not be routin g data through it, leave this checkbox unselected.

Indicates whether the Best Data DSL542 should use the IP address assigned to this interface, if any , as its default route for your LAN. This can be Enable or Disable. See Chapter 8 for an explanation of default routes.

A green or red ball will display to indicate that the interface is currently up or down, respectively. Yo u cannot manually enable or disable the inte rface; a red ball may indicate a problem with the DSL connection.

Icons you can click on to edit ( associated EOA interface.

) or delete ( ) the

Adding EOA Interfaces

Follow these instructions to add an EOA interface:

1. Click the WAN tab, and then click

2. Click

The EOA Interface – Add page displays, as shown in Figure 42.

Figure 41. EOA Interface – Add Page

3. Select one of the predefined interface names from the EOA Interface drop down list.

4. From the IPF Type drop-down list, select the level of IP Firewall to be used on this interface, as defined above.

EOA in the task bar.

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5. In the Lower Interface field, select the lower-level interface name over which this protocol is being configured. Typically, an EOA interface is confi gured to operate over an aal5 interface, such as aal5-0.

If you are using the Best Data DSL542 a s a bridge only, skip to step 7.

6. If you are using the Best Data DSL542 as a router on your LAN, enter the IP address and network mask you want to assign to the interface. This address serves as the public IP address for your entire LAN and is usually assigned by your ISP.

Or, if your ISP will assign this information, click the Enable radio button to set up the DHCP service.

Also, specify whether this interface sh ould ser ve as the default route for y our LAN f or accessing the Internet.

7. Click

A confirmation page display to confirm y our changes.

8. Click

9. Click the Admin tab, and the n click

10. Click

to return to the EOA page and view the new interface in the table.

Commit & Reboot in the task bar.

to save your changes to permanent memory.

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12 Configuring IPoA Interfaces

This chapter describes how to configure an IPoA (Inter net Protoco l-over-ATM ) interface on the Best Data DSL542.

Viewing Your IPoA Interface Setup

To configure an IPoA interface, log into Configuration Manager, click the WAN tab, and then click

IPoA in the task bar. The IPoA page disp lays, as sh own in F igure 43.

The IPoA table contains a row for each EOA interface currently defined on the device. The table may initially contain no entries.

The following table describes the fields on this page:

Figure 42. IPoA Page

Field Description

Interface

IPoA Type

Lower interface

Peer IP Address

The name the software uses to identify the IPoA interface

Specifies whether or not the IPoA protocol to be used complies with the IEFT RFC 1577 "Classical IP and ARP over ATM" (contact your ISP if unsure).

IPoA interfaces are defined in software, an d the n associated with lower-level software and hardware structures (at the lowest level, th ey are associated with a physical port – the WAN port). This field should reflect an interface name defin ed in th e next lower level of software over which the IPoA interface will operate. This will be an ATM VCC interface, such as aal5-0.

The IP address of the remote computer you w ill be connecting to via the WAN interface.

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Field Description

IPF Type

Config IP Address and Net Mask

Status

Action

The type of IP Firewall protections that are in effect on the interface (public, private, or DMZ):

The term DMZ (de-militarized zone), in Internet networking terms, refers to computers that are available for both public and in -netwo rk accesses (such as a company's public Web server). Packets incoming on a DMZ in terface — whether from a LAN or external source—are subject to a level of p rotec tion that is in betw een those for public and private interfaces.

The IP address and network mask you want to assign to the interface.

A green or red ball will display to indicate that t he interface is currently up or down, respectively. You cannot manually enable or di sable the inte rface; a down interface may ind icate a pro blem wi th th e DSL connection.

Icons you can click on to edit ( the associated EOA interface.

Best Data DSL542 ADSL Ethernet Router User’s Guide

) or delete ( )

Adding IPoA Interfaces

Follow these instructions to add an IPoA interface :

1. Display the IPoA page and click The IPoA Interface – Add page displays, as shown in Figure 44.

Figure 43. IPoA Interface – A dd Page

2. Select the next available interface name from the IPoA Interface drop-down list.

3. In the Configured IP Address and Net Mask boxes, type the address and mask that you

want to assign to the IPoA interface.

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4. Select the level of firewall security to apply to the interface by selecting the IPF Type as

Public, Private, or DMZ.

5. In the Lower Interface dialog box, select the lower-level interface name over which this

protocol is being configured and click . Typically, an IPoA interface is configured to operate over an aal5 interface.

6. Click

A confirmation page will display to confirm your changes.

7. Click

to return to the EOA page and view the new interface in the table.

8. Click the Admin tab, and then click

9. Click

to save your changes to permanent memory.

Commit & Reboot in the task bar.

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13 Configuring Bridging

The Best Data DSL542 can be configured to act as a br idging de vice betwe en your LAN and y our ISP. Bridges are devices that enable two or more networks to communicate as if they are two segments of the same physical LAN. This chapter describes how to configure the Best Data DSL542 to operate as a bridge.

Before changing your bridge configuration, check with your ISP to

Note

Using the Bridging Feature

Although the Best Data DSL542 is preconfigured to serve as a router for providing Internet connectivity to you LAN, there are se veral in stance s in whic h you may also want to config ure bridging:

f Your ISP may use protocols that require bridging with your LAN. The device can be

configured to appear as a bridge when communicating with your ISP, while continuing to provide router functionality for your LAN.

f Your LAN may include computers that co mmunicat e usin g “layer-3” p rotoc ols other than

the Internet Protocol. These include IPX configured to act as a bridge for packets that use these protocols while continuing to serve as a router for IP data.

In both cases, you need to specify the de vice’s interfaces a s bridge inte rfaces.

determine the type of connection they use t o exchan ge data with their customer’s DSL modems (such as E thernet bri dging or IP routing).

and AppleTalk®.. In this case, the device can be

Defining Bridge Interfaces

To enable bridging, you simply specify the device interfaces on which you want to bridge data, and then enable bridging mode:

1. Log into Configuration Manager and click the Bridging tab.

The Bridge Configuration page displays, as shown in Figure 45.

The table may be empty if bridging has not yet been configured.

2. Select the interface names on which you want to perform bridging and click

For example, select eth-0 (LAN) and eoa-0 (WAN) interfaces. If you use such protocols on a USB-connected computer, you can also select usb-0.

Figure 44. Bridge Configuration page

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You have to create an entry for usb-0 inferface via RS-232 cable. Please refer the procedure on page 10 and type “create bridge port intf ifname usb-0” on step 7.

If you do not have an eoa-0 interface, but instead have an

Note

interface named ppp-0 or ipoa-0, your device is not cu rrently configured with a WAN interface that allo ws bridgi ng with y our ISP. You may want to check with your ISP to determin e whether they use the eoa protocol. See Chapter 11 for instructions on creating an EOA interface.

If you enable bridging on an interface that has already been assigned an IP address, then it is con sidered IP-enab led and will route (rather than bridge) IP packets received on the interface. The interface will bridge non-IP data it receives, however.

You can determine whether the Ethernet (eth-0) and USB (usb-0) interfaces have been assigned IP addresses by displaying the IP

Note

Address Table (display the Routing tab, and then click IP

Address). These interfaces will display in the table only if they

have been assigned IP addresses. You can check whether the eoa-0 interface has been assigned an

IP address by displaying the EOA configuration table (click the WAN tab, and then click EOA). If the Config IP Address field is empty and the Use DHCP field contains the word Disable, then no IP address has been assigned.

3. Click the Enable radio button to turn on b ridging.

4. Click

A page will briefly display to confirm your c hanges, a nd will re turn you to the Bridge Configuration page.

5. Click the Admin tab, and the n click

6. Click

to save your changes to permanent memory.

Commit & Reboot in the task bar.

Deleting a Bridge Interface

1. To make an interface non-bridgeable, display the Bridge Configuration page and click

next to the interface you want to delete. Click interface remains defined in the system, but is no longer capable of perf orming bridging.

to confirm the deletion. The

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A Troubleshooting

This appendix suggests solutions for problems you may encount er in installing or using the Best Data DSL542, and provides instructions for using several IP utilities to diagnose problems.

Contact Customer Support if these suggestions do not resolve the problem.

Problem Troubleshooting Suggestion LEDs

Power LED does not illuminate after product is turned on. LINK WAN LED does not illuminate after phone cable is attached.

LINK LAN LED does not illuminate after Ethernet cable is attached.

Internet Access

PC cannot access Internet

PCs cannot display web pages on the Internet.

Verify that you are using the power cable provided with the device and that it is securely connected to the Best Data DSL542 and a wall socket/power strip. Verify that a standard telephone cable like the one provided is securely connected to the ADSL port and your wall phone jack. Wait 30 seconds to allow the device to negotiate a connection with your ISP. Verify that the Ethernet cable is securely connected to your LAN hub or PC and to the Best Data DSL542. Make sure the PC and/or hub is turned on. Verify that you are using a straight-through type Ethernet cable to the uplink port on a hub or a crossover type cable to a stand-alone PC. If you connected the device to an ordinary hub port (not Uplink), you must use a straight-through cable. (Hold the connectors at each end of the cable side-by-side in the same position. If the order of their color-coded wire pairs is the same, it is a straight-through type.) Contact Customer Support if your cable is not the correct type. Verify that your cable is sufficient for your network requirements. A 100 Mbit/sec network (10BaseTx) should use cables labeled Cat 5. 10Mbit/sec cables may tolerate lower quality cables.

Use the ping utility, discussed in the following section, to check whether your PC can communicate with the Best Data DSL542’s LAN IP address (by default 192.168.1.1). If it cannot, check the Ethernet cabling.

If you statically assigned a private IP address to the computer, (not a registered public address), verify the following:

Check that the gateway IP address on the computer is your public IP address. If it is not, correct the address or configure the PC to receive IP information automatically.

Verify with your ISP that the DNS server specified for the PC is valid. Correct the address or configure the PC to receive this information automatically.

Verify that a Network Address Translation rule has been defined on the Best Data DSL542 to translate the private address to your public IP address. The assigned IP address must be within the range specified in the NAT rules (see Chapter 7). Or, configure the PC to accept an address assigned by another device. The default configuration includes a NAT rule for all dynamically assigned addresses within a predefined pool (see the instructions in Chapter 6 to view the address pool).

Verify that the DNS server specified on the PCs is correct for your ISP, as discussed in the item above. You can use the ping utility, discussed in the following section, to test connectivity with your ISP’s DNS server.

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Problem Troubleshooting Suggestion Configuration Manager Program

You forgot/lost your Configuration Manager user ID or password.

Cannot access the Configuration Manager program from your browser.

Changes to Configuration Manager are not being retained.

If you have not changed the password from the default, try using “root” as both the user ID and password. Otherwise, you can reset the device to the default configuration by pressing the Reset button on the back panel of the device (using a pointed object such as a pen tip). Then, type the default User ID and password shown above. WARNING: Resetting the device removes any custom settings and returns all settings to their default values. Use the ping utility, discussed in the following section, to check whether your PC can communicate with the Best Data DSL542’s LAN IP address (by default 192.168.1.1). If it cannot, check the Ethernet cabling.

Verify that you are using Internet Explorer v5.0 or later, or Netscape Navigator v4.7 or later. Support for Javascript® mus t be en ab le d i n y o ur b r owser. Support for Java® may also be required.

Verify that the PC’s IP address is defined as being on the same subnet as the IP address assigned to the LAN port on the Best Data DSL542.

Be sure to use the Commit function after any changes. This function is described on page 17.

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Diagnosing Problem using IP Utilities

ping

Ping is a command you can use to check whether your PC can recognize other computers on your network and the Internet. A ping command sends a message to the computer you specify. If the computer receives the message, it s ends message s in reply . To use it , you must know the IP address of the computer you are trying to communicate w ith.

On Windows-based computers, you can execute a ping command from the Start menu. Click the Start button, and then click Run. In the Open text box, ty pe a statement su ch as the following :

ping 192.168.1.1

Click

. You can substitute any private IP address on your LAN or a public IP address

for an Internet site, if known. If the target computer receives the message, a Command Prompt window displays like that shown

in Figure .

Figure 45. Using the ping Utility

If the target computer cannot be loca ted, you w ill receive the me ssage “Reque st time d out.” Using the ping command, you can test whether the path to the Best Data DSL542 is working

(using the preconfigured default LAN IP address 192.168.1.1) or another address you assigned. You can also test whether access to th e Internet is workin g by ty ping an ex ternal addre ss, su ch as

that for www.yahoo.com (216.115.108.243). If you do not know the IP address of a particular Internet location, you can use the nslookup command, as explained in the following section.

From most other IP-enabled operating systems, you can execute the same command at a command prompt or through a sy stem ad ministrat ion utility .

nslookup

You can use the nslookup command to de termine the IP addres s associa ted with an internet sit e name. You specify the common name, and the nslo okup comman d looks up the n ame in on y our DNS server (usually located with your ISP). If that name is not an en try in your ISP ’s DNS table, the request is then referred to another higher-level server, and so on, until the entry is found. The server then returns the associated IP address.

On Windows-based computers, you can execute the nslookup command from the Start menu. Click the Start button, and then click R un. In the Open text box, ty pe the follow ing:

nslookup

Click

. A Command Prompt window displays with a bracket pr ompt (>). At th e

prompt, type the name of the internet address your are interested in, such as www.microsoft.com. The window will display the associate IP addre ss, if kno wn, as sh own in F igure 1.

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Figure 1. Using the nslookup Utility

There may be several addresses associated with an Internet name. This is common for web sites that receive heavy traffic; they use multipl e, redunda nt serve rs to ca rry the same in formatio n.

To exit from the nslookup utility, ty pe exit and press <Enter> at the command prompt.