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VisionNet
202ER-4 ADSL Ethernet Router
User’s Manual
Revision 1.0
November 01, 2002
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VisionNet 202ER-4 ADSL Ethernet Router User’s Guide
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Table of Contents
1 Introduction......... ....... .... .... ..... .... .... ..... .... ..... .... .11
Features..............................................................................11
System Requirements........................................................11
Using this Document........................................ ................ ...12
Notational conventions................................................12
Typographical conventions..........................................12
Special messages........................................................12
2 Getting to Know the VisionNet 202ER-4...........13
Parts Check...................................................................... ...13
Front Panel..........................................................................14
Rear Panel..........................................................................15
3 Quick Start............... ...... ....... ...... ....... ...... ....... ...17
Part 1 — Connecting the Hardware...................................17
Step 1. Connect the ADSL cable and optional
telephone..................................................................18
Step 2. Connect the Ethernet cable............................19
Step 3. Attach the power connector............................19
Step 4. Turn on the VisionNet 202ER-4 and
power up your systems............................................19
Part 2 — Configuring Your Computers..............................20
Before you begin..........................................................20
Windows 95, 98 PCs:...............................................20
Windows NT 4.0 workstations:....................................21
Windows 2000 PCs:....................................................22
Windows Me PCs........................................................23
Assigning static Internet information to your
PCs...........................................................................24
Part 3 — Configuring the VisionNet 202ER-4오류! 책갈피가 정의되어 있지 않습
Logging in to the VisionNet 202E R-4 Quic k
Setup.........................................................................25
Operation Mode...........................................................26
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DNS Settings............................................................. ...26
PPP Settings................................................................26
Default Router Settings............................................. ...27
Testing Your Installation.....................................................28
Using VisionNet’s Diagnostic Utilities.................................29
4 Getting Started with the Configuration
Manager .........................................................31
Accessing the Configuration Manager...............................31
Functional Layout....................................... ...................... ...33
Commonly used buttons..............................................33
The Home Tab and System View Table............................34
Changing the System Date and Time................................36
Changing the System Date and Time................................36
Changing Your Login Password...................................... ...37
Committing Your Changes and Rebooting the
Device........................................................................... ...38
Committing your changes............................................38
Rebooting the device using Configuration
Manager....................................................................39
5 Setting the LA N IP Add res s......................... .....41
Ethernet, USB, or Both?.....................................................41
Configuring the LAN IP Address........................................42
Configuring the USB Port IP Address................................45
6 Viewing System IP Information and
Performance S tati sti cs...................................47
Viewing the VisionNet 202ER-4’s IP addresses................47
Viewing IP Global Statistics................................................48
7 Configuring Dynamic Host Configuration
Protocol................................................ ..... .... .49
Overview of DHCP........................................................... ...49
What is DHCP?............................................................49
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Why use DHCP?..........................................................49
VisionNet 202ER-4 DHCP modes..............................50
Configuring DHCP Server..................................................51
Viewing, modifying, an d deleting a ddress
pools, and excluding IP address es f rom a
pool ...........................................................................54
Viewing current DHCP address as signments .............54
Configuring DHCP Relay....................................................56
Setting the DHCP Mode.....................................................57
8 Configuring Network Address Translation........59
Overview of NAT.................................................................59
Your Default NAT Setup.....................................................60
Viewing NAT Global Settings and Statistics.....................61
Viewing NAT Rules and Rule Statistics.............................64
Viewing Current NAT Translations.....................................65
Adding NAT Rules..............................................................67
The napt rule: Translating between private and
public IP addresses..................................................67
The rdr rule: Allowing external acces s to a
LAN computer........................................................ ...69
The basic rule: Performing 1:1 translations................72
The filter rule: Configuring a basic rule with
additional criteria.......................................................73
The bimap rule: Performing two-way
translations.................................. ................ ..............75
The pass rule: Allowing specific addresses to
pass through untranslated................................ ........76
9
Configuring DN S S e rv e r A dd re ss e s.................79
About DNS..........................................................................79
Assigning DNS Addresses.................................................79
Configuring DNS Relay......................................................78
10 Configuring IP Rou te s....................... ...... ....... ...81
Overview of IP Routes........................................................81
Comparing IP routing to telephone switching.............81
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Hops and gateways.....................................................82
Using IP routes to define default gateways.................82
Do I need to define IP routes?.....................................82
Viewing the IP Routing Table.............................................83
Adding IP Routes.................................................. ..............85
11 Configuring the Routing Information
Protocol................................................ ..... .... .89
RIP Overview......................................................................89
When should you configure RIP?................................89
Configuring the VisionNet 20 2ER-4’s Interf aces
with RIP.................................................................... ........88
Viewing RIP Statistics.........................................................90
12 Configuring the AT M VC C................................91
Viewing Your ATM VC Setup.............................................91
Adding ATM VCs................................................................92
Modifying ATM VCs.............................................. ..............94
13 Configuring P PP In te r f ac es........................ .... ...95
Viewing Your Current PPP Configuration..........................95
Viewing PPP Interface Details............................................99
Adding a PPP Interface Definition....................................100
Modifying and Deleting PPP Interfaces...........................101
14 Configuring E OA I nt e rfa ce s........................... .103
Overview of EOA............................................................. .103
Viewing Your EOA Setup.................................................104
Adding EOA Interfaces.....................................................106
15 Configuring IP oA I nte r fac es............................109
Viewing Your IPoA Interface Setup..................................109
Adding IPoA Interfaces.....................................................110
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16
Configuring B ri d g in g................... ..... .... .... ..... ...113
Overview of Bridges..........................................................113
Using the Bridging Feature...............................................114
Defining Bridge Interfaces................................................115
Deleting a Bridge Interface...............................................116
17 Configuring F i re w al l S et ti ng s..........................117
Configuring Global Firewall Settings................................117
Managing the Black List ...................................................120
18 Configuring IP Fi lt ers......................... ......... .....121
Overview.......................................................................... .121
Viewing Your IP Filter Configuration................................121
Configuring IP Filter Global Settings................................122
Creating IP Filter Rules.....................................................123
IP filter rule examples.......................................................128
Viewing IP Filter Statistics..................................... ............130
Managing Current IP Filter Sessions...............................130
19 Viewing DSL Para mete rs................................133
A IP Addresses, Network Masks, and
Subnets ........................................................136
IP Addresses.....................................................................136
Structure of an IP address.........................................136
Network classes.........................................................137
Subnet masks...................................................................137
B Binary Numbe rs.................................... .... ......13 9
Binary Numbers................................................................139
Bits and bytes.............................................................139
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C
Troubleshooting ..............................................141
Diagnosing Problem using IP Utilities..............................143
ping........................................... ................. ................ .143
nslookup.................................................................... .144
D Glossary....................................................... ...145
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FCC Compliance Statements
NOTE : 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. 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 :
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
Warning : Modifications not expressly approved by the manufacturer could void the user’s
authority to operated the equipment under FCC rules.
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1 Introduction
Congratulations on becoming the ow ner o f the V isionNet 202ER- 4
ADSL Ethernet bridge/router. Your LAN (local area network) will
now be able to access the Internet u sing your high-spe ed ADSL
connection.
This User Guide will show you how to install and set up the
VisionNet 202ER-4 ADSL Bridge/Router, and how to customize its
configuration to get the most out of yo ur new produc t.
Features
Internal A DSL mode m for high-speed Internet ac cess
10/100Base-T Ethernet router to provide Internet
connectivity to all computers on your LAN
USB port for connecting a U SB-enab led PC
Netw ork addres s translatio n (NAT), Firew all, and IP filtering
functions to provide security for your LAN
Network configuration through DHCP Server and DHCP
Relay
Services inc luding IP route and D NS config uration, RI P,
and IP and DSL performance monitoring
Configuration program you access via an HTML browser
System Requirements
In order to use the VisionNet 202ER-4 ADSL/Ethernet router, you
must have the following:
ADSL service up and running on your telephone line, with
at least one public Internet address f or your LAN
One or more compute rs eac h contain ing an E thernet
10Base-T/100Base-T network interface card (NIC)
An Ethernet hub/switch, if you are connecting the device to
more than one computer on an Ethernet netw ork .
For system configuration using the supplied web-based
program: a web browser s uch as Internet E xplorer v5.0 or
later, or Netscape v4.7 or later
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Using this Document
Notational conventions
Acronyms are defined the first time they appear in text and
in the glossary (Appendix 0).
For brevity, the VisionNet 202ER-4 is referred to as “the
router.”
The terms LAN and network are used intercha ngeably to
refer to a group of Ethernet-connected computers at one
site.
Typographical conventions
Italics are used to identify terms that are de fined in the
glossary (Appendix 0).
Bolded text is use d for items y ou selec t from menu s and
drop-down lists, and to identify field labe ls you v iew o nscreen.
Special messages
This document uses the following icons to call your attention to
specific instructions or explanations.
Note
Provides clarifying or non-essential information on the current
topic.
Definition
Explains terms or acronyms that may be unfamiliar to many
readers. These terms are also included in the Glossary.
WARNING
Provides messages of high importan ce, includin g mess ages
relating to personal safety or system integrity.
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2 Getting to Know the VisionNet 202ER-4
Parts Check
In addition to this document, your VisionNet 202ER-4 should arrive
with the following (in picture , clockw is e from upper left):
Vision Net 202ER- 4 ADS L Eth ernet Ro uter
Power adapter and power cord
CD with Manual
Quick Start Guide
Ethernet cable (“straight-through” type)
Standard phone/D SL line c able
Figure 1. VisionNet 202ER-4 ADSL/Ethernet Router Package Contents
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Front Panel
The front panel contains lights called LEDs that indic ate the st atus
of the unit.
Figure 2. Front Panel and LE Ds
Label When On
PPP
It’s On when VisionNet 202ER-4 is connected to PPP which
is working.
LAN On: LAN link established and active.
Off: No LAN link
SYNC On: ADSL link established and active
Blinking: DSL signal found
Off: No ADSL link
Tx/Rx
Flashes when ADSL data activity occurs.
May appear solid when data traffic is heavy.
ACT On: Device passed self test
Blinking: Device failed self test
POWER On: Unit is powered on
Off: Unit is powered off
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Rear Panel
The rear panel contains the ports for the unit's data and pow er
connections.
Figure 3. Rear Panel C onne ctions
Label Function
POWER Switches the unit on and off
DC INPUT Connects to the supplied power converter cable
Ethernet
(Port 1 ~ Port 4)
Connects the device to your PC's Ethernet port, or to
the uplink port on your LAN's hub, using the cable
provided
PHONE Provides an optional connection to your telephone
LINE
Connects the device to a telephone jack for DSL
communication
RESET
Resets the device to the manufacturer’s default
configuration
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3 Quick S tart
This Quick Start provides basic instruc tions for connec ting the
VisionNet 202ER-4 to a computer or LAN and to the Internet.
Part 1 describes sett ing up the hardw are .
Part 2 describes how to configure Inte rnet properties on
your computer(s) and how to install the software for using a
computer attached to the USB port.
Part 3 show s y ou how to config ure basic settings on the
VisionNet 202ER-4 to get your LAN connected to the
Internet.
This Quick Start assumes that you have already established ADSL
service with your Internet service provider (ISP). These instructions
provide a basic configuration that should be co mpatible w ith you r
home or small office network setup. Refer to the subsequent
chapters for additional configuration instructions.
Part 1 — Connecting the Hardware
In Part 1, you connect the device to the phone jack, the power outlet,
and your computer or network.
WARNING
Before you begin, turn the power off for all devices. These
include your computer(s), your LAN hub/switch (if applicable),
and the VisionNet 202ER-4.
Figure 4 illustrates the hardw are connect ions . The lay out of the
ports on your device may vary from the layout shown. Refer to the
steps that follow for specific instructions.
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