ASUS RX3141 User Manual

RX3141

User’s Manual

Revision 1.01 Oct. 21, 2004

Table of Contents

Introduction ..............................................1

1.1

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

1.2

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

1.3

Using this Document ............................................................................................2

1.3.1

Notational conventions...............................................................................2

1.3.2

Typographical conventions........................................................................2

1.3.3

Special messages......................................................................................2

Getting to Know RX3141 .........................3

2.1

Parts List...............................................................................................................3

2.2

Hardware Features...............................................................................................3

2.3

Software Features................................................................................................3

2.3.1

NAT Features.............................................................................................3

2.3.2

Firewall Features........................................................................................4

2.3.2.1

Stateful Packet Inspection.............................................................4

2.3.2.2

Packet Filtering – ACL (Access Control List)................................4

2.3.2.3

Defense against DoS Attacks........................................................4

2.4.1.1

Application Level Gateway (ALG).................................................5

2.4.1.2

Log..................................................................................................5

2.4

Finding Your Way Around....................................................................................6

2.4.1

Front Panel.................................................................................................6

2.4.2

Rear Panel..................................................................................................7

2.4.3

Bottom View...............................................................................................8

2.5

Placement Options...............................................................................................9

2.5.1

Desktop Placement....................................................................................9

2.5.2

Magnet Mount Instructions.........................................................................9

2.5.3

Wall Mount Instructions:.............................................................................9

Quick Start Guide...................................11

3.1

Part 1 — Connecting the Hardware...................................................................11

3.1.1

Step 1. Connect an ADSL or a cable modem.........................................11

3.1.2

Step 2. Connect computers or a Network...............................................11

3.1.3

Step 3. Attach the AC adapter.................................................................12

3.1.4

Step 4. Power on RX3141, the ADSL or cable modem and power up

your computers.........................................................................................12

3.2

Part 2 — Configuring Your Computers..............................................................13

3.2.1

Before you begin......................................................................................13

3.2.2

Windows® XP PCs:.................................................................................13

3.2.3

Windows® 2000 PCs:..............................................................................13

3.2.4

Windows® 95, 98, and Me PCs ..............................................................14

3.2.5

Windows® NT 4.0 workstations:..............................................................15

3.2.6

Assigning static IP addresses to your PCs .............................................15

3.3

Part 3 — Quick Configuration of the RX3141....................................................16

3.3.1

Setting Up the RX3141............................................................................16

3.3.2

Testing Your Setup ..................................................................................17

3.3.3

Default Router Settings............................................................................18

Using the Configuration Manager..........19

4.1

Log into the Configuration Manager...................................................................19

4.2

Functional Layout ...............................................................................................20

4.2.1

Menu Navigation......................................................................................20

4.2.2

Commonly Used Buttons and Icons........................................................21

4.3

Overview of System Configuration.....................................................................22

Router Connection Setup.......................23

5.1

LAN Configuration..............................................................................................23

5.1.1

LAN IP Address........................................................................................23

5.1.2

LAN Configuration Parameters................................................................23

5.1.3

Configuring the LAN IP Address..............................................................24

5.2

WAN Configuration.............................................................................................25

5.2.1

WAN Connection Mode...........................................................................25

5.2.2

PPPoE......................................................................................................26

5.2.2.1

WAN PPPoE Configuration Parameters.....................................27

5.2.2.2

Configuring PPPoE for WAN.......................................................28

5.2.2.3

Configuring PPPoE Multi-session for WAN................................28

5.2.3

PPPoE Unnumbered................................................................................31

5.2.3.1

WAN PPPoE Unnumbered Configuration Parameters..............32

5.2.3.2

Configuring PPPoE Unnumbered for WAN................................33

5.2.4

Dynamic IP...............................................................................................33

5.2.4.1

Configuring Dynamic IP for WAN................................................33

5.2.5

Static IP.....................................................................................................34

5.2.5.1

WAN Static IP Configuration Parameters...................................34

5.2.5.2

Configuring Static IP for WAN.....................................................34

iii

DHCP Server Configuration...................35

6.1

DHCP (Dynamic Host Control Protocol)............................................................35

6.1.1

What is DHCP?........................................................................................35

6.1.2

Why use DHCP?......................................................................................35

6.1.3

Configuring DHCP Server........................................................................35

6.1.4

Viewing Current DHCP Address Assignments.......................................37

Configuring Static Routes......................39

7.1

Overview of IP Routes........................................................................................39

7.1.1

Do I need to define static routes?............................................................39

7.2

Static Route ........................................................................................................40

7.2.1

Static Route Configuration Parameters...................................................40

7.2.2

Adding Static Routes................................................................................41

7.2.3

Deleting Static Routes..............................................................................42

7.2.4

Viewing the Static Routing Table.............................................................42

Configuring DDNS .................................43

8.1

DDNS Configuration Parameters.......................................................................44

8.2

Configuring HTTP DDNS Client.........................................................................45

Configuring Firewall/NAT Settings.........47

9.1

Firewall Overview...............................................................................................47

9.1.1

Stateful Packet Inspection .......................................................................47

9.1.2

DoS (Denial of Service) Protection..........................................................47

9.1.3

Firewall and Access Control List (ACL)...................................................47

9.1.3.1

Priority Order of ACL Rule...........................................................47

9.1.3.2

ACL Rule and Connection State Tracking..................................48

9.1.4

Default ACL Rules....................................................................................48

9.2

Router Security Settings.....................................................................................49

9.2.1

Basic Router Security Configuration Parameters...................................49

9.2.2

DoS Configuration....................................................................................49

9.2.2.1

DoS Protection Configuration Parameters..................................50

9.2.2.2

Configuring DoS Settings............................................................51

9.3

ACL Rule Configuration Parameters .................................................................52

9.3.1

ACL Rule Configuration Parameters.......................................................52

9.4

Configuring Inbound ACL Rules........................................................................55

9.4.1

Add Inbound ACL Rules..........................................................................55

9.4.2

Figure 9.4. Sample Inbound ACL L ist Tabl eModify In bound ACL Rules

..................................................................................................................56

9.4.3

Delete Inbound ACL Rules......................................................................56

9.4.4

Display Inbound ACL Rules.....................................................................57

9.5

Configuring Outbound ACL Rules .....................................................................57

9.5.1

Add an Outbound ACL Rule....................................................................57

9.5.2

Modify Outbound ACL Rules...................................................................58

9.5.3

Delete Outbound ACL Rules...................................................................59

9.5.4

Display Outbound ACL Rules..................................................................59

9.6

Configuring Self-Access ACL Rules – (Router Setup Î S elf -Ac ces s AC L)......59

9.6.1

Add a Self-Access Rule...........................................................................60

9.6.2

Modify a Self-Access Rule.......................................................................60

9.6.3

Delete a Self-Access Rule.......................................................................61

9.6.4

View Configured Self-Access Rules........................................................61

9.7

Firewall Log – (Router Setup Î Log)................................................................61

9.7.1

Log Format...............................................................................................62

Virtual Sever and Special Application....63

10.1 NAT Overview.....................................................................................................63

10.1.1 NAPT (Network Address and Port Translation) or PAT (P ort Address

Translation)................................................................................................63

10.1.2 Reverse NAPT / Virtual Server................................................................64

10.2 Configure Virtual Server.....................................................................................64

10.2.1 Virtual Server Configuration Parameters.................................................64

10.2.2 Virtual Server Example............................................................................66

10.2.3 Special Application Configuration Parameters........................................67

10.2.4 Special Application Example ...................................................................68

System Management.............................70

11.1 Login Password and System-Wide Settings.....................................................70

11.2 Viewing System Information...............................................................................72

11.3 Setup Date and Time .........................................................................................73

11.3.1 View the System Date and Time.............................................................74

11.4 Reset to Factory Default Settings......................................................................74

11.4.1 Reset to Factory Default Settings using GUI ..........................................74

11.4.2 Reset to Factory Default Settings using the Reset Button.....................75

11.5 Firmware Upgrade..............................................................................................75

11.6 System Reboot...................................................................................................78

11.7 . System Configuration Management................................................................79

11.7.1 Backup System Configuration.................................................................79

11.7.2 Restore System Configuration.................................................................81

IP Addresses, Network Masks, and

Subnets..................................................83

12.1 IP Addresses.......................................................................................................83

12.1.1 Structure of an IP address.......................................................................83

12.2 Network classes..................................................................................................84

12.3 Subnet masks.....................................................................................................85

Troubleshooting.....................................87

13.1 Diagnosing Problem using IP Utilities................................................................88

13.1.1 ping...........................................................................................................88

13.1.2 nslookup ...................................................................................................89

Index ......................................................91

List of Figures

Figure 2.1. Front Panel LEDs...................................................................................................................................6

Figure 2.2. Rear Panel Connectors.........................................................................................................................7

Figure 3.1. Overview of Hardware Connections .................................................................................................. 12

Figure 3.2. Login Screen....................................................................................................................................... 16

Figure 3.3. System Status Page........................................................................................................................... 17

Figure 4.1. Configuration Manager Login Screen................................................................................................ 19

Figure 4.2. Typical Configuration Manager Page................................................................................................. 20

Figure 4.3. System Information Page................................................................................................................... 22

Figure 5.1. Router Connection Setup Configuration – LAN Configuration.......................................................... 24

Figure 5.2. Network Setup Configuration Page – WAN Configuration................................................................25

Figure 5.3. WAN – PPPoE Configuration............................................................................................................. 26

Figure 5.4. WAN – PPPoE Multi-session Example.............................................................................................. 28

Figure 5.5. WAN – PPPoE0 Settings ................................................................................................................... 29

Figure 5.6. WAN – PPPoE1 Settings ................................................................................................................... 29

Figure 5.7. WAN – First ACL Rule Settings (using network address/subnet mask) for Forwarding Packets to

PPPOE1 Session........................................................................................................................................... 29

Figure 5.8. WAN – Second ACL Rule Sett ings (usi ng domai n nam e) for Fo rwardi ng Packet s to PP POE1

Session........................................................................................................................................................... 29

Figure 5.9. WAN – Outbound ACL Rule Settings for PPPoE Multi-session Example........................................ 30

Figure 5.10. WAN – Default Outbound ACL Rule for PPPoE Multi-session Example....................................... 30

Figure 5.11. WAN – PPPoE Unnumbered Configuration.................................................................................... 31

Figure 5.12. WAN – Dynamic IP (DHCP client) Configuration............................................................................ 33

Figure 5.13. WAN – Static IP Configuration......................................................................................................... 34

Figure 6.1. DHCP Server Configuration Page......................................................................................................36

Figure 6.2. DHCP Lease Table.............................................................................................................................37

Figure 7.1. Routing Configuration Page.............................................................................................................. 40

Figure 7.2. Static Route Configuration................................................................................................................. 41

Figure 7.3. Sample Routing Table....................................................................................................................... 42

Figure 8.1. Network Diagram for HTTP DDNS.................................................................................................... 43

Figure 8.2. HTTP DDNS Configuration Page....................................................................................................... 45

Figure 9.1. Router Security Configuration Page................................................................................................... 51

Figure 9.2. Inbound ACL Configuration Page...................................................................................................... 55

Figure 9.3. Inbound ACL Configuration E xample.................................................................................................56

Figure 9.4. Sample Inbound ACL List Table................................................................................................. 56

Figure 9.5. Outbound ACL Configuration Page................................................................................................... 57

Figure 9.6. Outbound ACL Configuration Example..............................................................................................58

vii

Figure 9.7. Sample Outbound ACL List Table......................................................................................................58

Figure 9.8. Self-Access ACL Configuration Page................................................................................................ 60

Figure 9.9. Self-Access ACL Configuration Example.......................................................................................... 60

Figure 9.10. Existing Self-Access ACL Rules...................................................................................................... 61

Figure 9.11 Sample Firewall Log.......................................................................................................................... 62

Figure 10.1 NAPT – Map Any Internal PCs to a Single Global IP Address........................................................ 63

Figure 10.2 Reverse NAPT – Relay ed Incomin g Packet s to the I nternal Host Ba se on th e Proto col, Port

Number or IP Address................................................................................................................................... 64

Figure 10.3. Virtual Server Example..................................................................................................................... 66

Figure 10.4. Virtual Server Example – Inbo und ACL Rule...........................................................................67

Figure 10.5. Special Application Configuration Page........................................................................................... 68

Figure 10.6. Special Application Example – Outbound ACL Rule....................................................................... 69

Figure 10.7. Outbound ACL Rule Table............................................................................................................... 69

Figure 11.1. System Administration Configuration Page..................................................................................... 70

Figure 11.2. System Status Page......................................................................................................................... 72

Figure 11.3. Date and Time Configuration Page.................................................................................................. 73

Figure 11.4. Factory Reset Page.......................................................................................................................... 74

Figure 11.5. Factory Reset Confirmation.............................................................................................................. 74

Figure 11.6. Factory Reset Count Down Timer.................................................................................................... 75

Figure 11.7. Firmware Upgrade Page.................................................................................................................. 75

Figure 11.8. File Manager..................................................................................................................................... 76

Figure 11.9. Firmware Upgrade Confirmation...................................................................................................... 76

Figure 11.10. Firmware Upgrade Status .............................................................................................................. 76

Figure 11.11. Firmware Upgrade Count Down Timer.......................................................................................... 77

Figure 11.12. System Reboot Page...................................................................................................................... 78

Figure 11.13. System Reboot Confirmation......................................................................................................... 78

Figure 11.14. System Reboot Countdown Timer................................................................................................. 78

Figure 11.15. System Configuration Backup Page.............................................................................................. 79

Figure 11.16. System Configuration Backup Page – File Download Dialog....................................................... 79

Figure 11.17. System Configuration Backup Page – Save As Dialog.................................................................80

Figure 11.18. System Configuration Backup Status............................................................................................ 80

Figure 11.19. System Configuration Restore Page ............................................................................................. 81

Figure 11.20. System Configuration Restore Page – Choose File Dialog.......................................................... 81

Figure 11.21. System Configuration Restore Status............................................................................................ 82

Figure 13.1. Using the ping Utility......................................................................................................................... 89

Figure 13.2. Using the nslookup Utility................................................................................................................. 90

viii

List of Tables

Table 2.1. DoS Attacks.............................................................................................................................................5

Table 2.2. Front Panel Label and LEDs ..................................................................................................................6

Table 2.3. Rear Panel Labels and LEDs.................................................................................................................7

Table 3.1. LED Indicators...................................................................................................................................... 12

Table 3.2. Default Settings Summary................................................................................................................... 18

Table 4.1. Description of Commonly Used Buttons and Icons............................................................................ 21

Table 5.1. LAN Configuration Parameters............................................................................................................23

Table 5.2. WAN PPPoE Configuration Parameters............................................................................................. 27

Table 5.3. WAN PPPoE Unnumbered Configuration Parameters...................................................................... 32

Table 5.4. WAN Static IP Configuration Parameters........................................................................................... 34

Table 6.1. DHCP Configuration Parameters........................................................................................................ 36

Table 7.1. Static Route Configuration Parameters............................................................................................... 40

Table 8.1. DDNS Configuration Parameters........................................................................................................ 44

Table 9.1. Firewall Basic Configuration Parameters............................................................................................ 49

Table 9.2. DoS Attack Definition........................................................................................................................... 50

Table 9.3. ACL Rule Configuration Parameters................................................................................................... 52

Table 10.1. Virtual Server Configuration Paramet ers.......................................................................................... 65

Table 10.2. Port Numbers for Popular Applications............................................................................................. 65

Table 10.3. Virtual Server Configuration Paramet ers.......................................................................................... 67

Table 10.4. Port Numbers for Popular Applications............................................................................................. 68

Table 12.1. IP Address Structure.......................................................................................................................... 83

RX3141 User’s Manual Chapter 1. Introduction

Congratulations on becoming the owner of RX3141. Your LAN (local area network) will now be able to access the Internet using your high-speed broadband connection such as those with ADSL or cable modem.

This User Manual will show you how to set up the RX3141, and how to customize its configuration to get the most out of this product.

Introduction

1.1 Features

f LAN: 4-port Gigabit switch, jumbo frame sup ports up to 9Kbyte. f WAN: 10/100Base-T Ethernet provides Internet access f or all compute rs on your LAN f Firewall & NAT (Network Address T ranslat ion) fu nctions provi de se cure Inte rnet acce ss for yo ur LAN f Automatic network address assignment through DHCP Server f Services including IP route, DNS and DDNS configuration f Configuration program accessible via a web browser, such as Microsoft Internet Explorer 6.0 or newer.

1.2 System Requirements

In order to use the RX3141 for Intern et acce ss, you must hav e the f ollo wing:

f ADSL or cable modem and the corresponding service up and running, with at least one public Internet

address assigned to your WAN

f One or more computers each containing an Ethernet 10Base-T or 100Base-T or 1000Base-T network

interface card (NIC)

f (Optional) An Ethernet hub/switch, if you want to connect the router to more than four computers on

an Ethernet network.

f For system configuration using the we b-based GUI: web brow ser such as Microsoft IE 6. 0 or newer.

Chapter 1. Introduction RX3141 User’s Manual

1.3 Using this Document

1.3.1 Notational conventions

f Acronyms are defined the first time they appear in th e text. f For brevity, RX3141 is sometimes referred to as the “router” or the ”gateway”. f The terms LAN and network are used interchangeably to refer to a group of Ethernet-connected

computers at one site.

f Sequence of mouse actions is denoted by the “Î” character. For instance, Router Setup Î

Connection means double click the Router Setup menu and then click the Connecti on submenu.

1.3.2 Typographical conventions

f Boldface type text is used for items you select from menus and drop-down lists, and text strings you

type when prompted by the program.

1.3.3 Special messages

This document uses the followi ng icon s to call y our attention to specific instructions or explanations.

Note

Definition

WARNING

Provides clarification or non-essential information on the curre nt topic.

Explains terms or acronyms that may be unfamiliar to many readers. These terms are also included in the Glossary.

Provides messages of high importance, including messages relating to personal safety or system integrity.

RX3141 User’s Manual Chapter 2. Getting to Know

Getting to Know RX3141

2.1 Parts List

In addition to this document, RX 3141 sh ould co me with the f ollowin g:

f The System unit, RX3141 f AC Adapter f User Manual f Compact Disk of Multi-language Quick installation Guide

2.2 Hardware Features

f LAN

• 4-port Gigabit switch

• Auto speed negotiation

• 9KB jumbo frame support

• 4K MAC address table w/ auto learning and aging

f WAN

• 10/100M Ethernet

• Auto MDI/MDIX

2.3 Software Features

2.3.1 NAT Features

RX3141 provides NAT to share a single high-speed Internet connection and to save the cost of multiple connections required for the hosts on the LAN segments connected to it. This feature conceals network address and prevents them from becoming public. It maps unregistered IP address of hosts connected to the LAN with valid ones for Internet access. RX3141 also provides reverse NAT capability, which enables users to host various services such as e-mail servers, web servers, etc. The NAT rules drive the translation mechanism. The following types of NAT are supported by RX3141.

f NAPT (Network Address and Port Translation) – Also called IP Masquerading or ENAT (Enhanced

NAT). Maps many internal hosts to only one globally vali d IP address. The ma pping usually cont ains a pool of network ports to be used for t ransla tion. Every pa cket is tran slated with t he glob ally valid IP address; the port number is translat ed with a f ree pool fr om the pool of netwo rk ports.

f Reverse NAPT – Also called inbound mapping, port mapping, or vi rtual server. Any packet comi ng to

the router can be relayed to an internal host based on the protoc ol, port number and/ or IP Address specified in the rule. This is useful when multiple servi ces are hosted on diffe rent internal host s.

Chapter 2. Getting to Know RX3141 User’s Manual

2.3.2 Firewall Features

The firewall as implemented in RX3141 provides the following features to protect your network from being attacked and to prevent your network from being used as the springboard for attacks.

f Stateful Packet Inspection f Packet Filtering (ACL) f Defense against Denial of Service Attacks f Log

2.3.2.1 Stateful Packet Inspection

The RX3141 Firewall uses “stateful packet inspe ction” that extra cts state-related inform ation required for the security decision from the packet and mainta ins this info rmation for ev aluating sub sequent conne ction attempts. It has awareness of application and creates dynamic sessions that allow dynamic connections so that no ports need to be opened other than the required ones. This provides a solution which is highly secure and that offers scalability and extensibility.

2.3.2.2 Packet Filtering – ACL (Access Control List)

ACL rule is one of the basic buildin g blo cks for net work secu rity. Fire wall monit ors each i ndividua l packet, decodes the header information of inbound and outbound traffic and then either blocks the packet from passing or allows it to pass based on the contents of the source address, destination address, source port, destination port, and proto col def ined in t he ACL rules.

ACL is a very appropriate measure f or providi ng is olation of o ne subnet f rom anoth er. It can be used a s the first line of defense in the network to block inbound packet s of specific types from ever reaching the protected network.

The RX3141 Firewall’s ACL methodology supports:

f Filtering based on destination and source IP address, port number and protocol f Use of the wild card for composin g filter ru les f Filter Rule priorities

2.3.2.3 Defense against DoS Attacks

The RX3141 Firewall has an Attack Defen se Engine that prote cts internal net works from know n types of Internet attacks. It provides automatic protecti on from Denial of Service (DoS) attacks such as SYN flooding, IP smurfing, LAND, Ping of Death and all re-assembly attacks. For exampl e, the RX3141 Firewall provid es protection from “WinNuke”, a widely used program to remotely crash unprotected Windows systems in the Internet. The RX3141 Firewall also provides protection from a variety of comm on Internet attacks such as IP Spoofing, Ping of Death, Land Attack, and Reassembly attacks.

The type of attack protections/ detectio ns provid ed by the RX314 1 is list ed in Tabl e 2. 1.

RX3141 User’s Manual Chapter 2 Getting to Know

Table 2.1. DoS Attacks

Type of Attack Name of Attacks

Re-assembly attacks

Bonk, Boink, Teardrop (New Tear), Overdrop, Opentear, Syndrop, Jolt, IP fragmentation overlap

ICMP Attacks Ping of Death, Smurf, Twinge Flooders

Logging only for ICMP Flooder, UDP Flooder, SYN Flooder

Logging only for TCP SYN Scan

Port Scans

Attack packets dropped: TCP XMAS Scan, TCP Null

Scan, TCP Stealth Scan Protection with PF Rules Echo-Chargen, Ascend Kill Miscellaneous Attacks IP Spoofing, LAND, Targa, Winnuke

2.4.1.1 Application Level Gateway (ALG)

Applications such as FTP open connections dynamically based on the respective application parameter. To go through the firewall on the RX3141, packet s pertaini ng to an applicati on, requi re a correspondi ng allow rule. In the absence of such rules, the packets will be dropped by the RX3141 Firewall. As it is not feasible to create policies for numerous applications dynamically (at the same time without compromising security), intelligence in the form of Application Level Gateways (ALG), is built to parse packets for applications and open dynamic associations. The RX3141 NAT provides a number of ALGs for popular applications such as FTP, and Netmeeting.

2.4.1.2 Log

Events in the network, that could be attempts to affect its security, are recorded in the RX 3141 syst em log file. The log maintains a minimum lo g detai ls such as, time of packet arrival, d escriptio n of action t aken by F irewall and reason for action.

Chapter 2. Getting to Know RX3141 User’s Manual

2.4 Finding Your Way Around

2.4.1 Front Panel

The front panel contains LED indicators th at show the status of the u nit.

○

Figure 2.1. Front Panel LEDs

Table 2.2. Front Panel Label an d LEDs

○

LED Label Color Status Indication

○

POWER

1 – 4

Green ON

OFF

RX3141 is powered on RX3141 is powered off

Identifies the LAN port LEDs. Status of each LAN port is indicated by 3 LEDs: STATUS, SPEED and DUPLEX.

○

STATUS Green ON

SPEED Green

Amber

Blinking

OFF ON

ON OFF

Ethernet link is established and active Data is transmitted or received via the

connection

No Ethernet link Speed is 1000Mbps

Speed is 100Mbps Speed is 10Mbps or no link is

established.

○

DUPLEX Amber

Blinking

OFF

The LAN port is operating in full-duplex

mode.

The LAN port is operating in half-

duplex mode and collision is occurring.

The LAN port is operating in half

duplex mode and no collision is detected.

○

WAN

STATUS Green ON

SPEED Green ON

Identifies the WAN port LED

Ethernet link is established and active.

OFF

No Ethernet link is established. Speed is 100Mbps

Blinking

Green: Data is transmitted or received

via the connection

RX3141 User’s Manual Chapter 2 Getting to Know

LED Label Color Status Indication

Amber ON

Blinking

Speed is 10Mbps Data is transmitted or received via the

connection

OFF No link is established.

○

DUPLEX Amber

OFF

The LAN port is operating in full-duplex

mode.

The LAN port is operating in half

duplex mode and no collision is detected.

2.4.2 Rear Panel

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

○

Figure 2.2. Rear Panel Connectors

Table 2.3. Rear Panel Labels and LEDs

○9○

Label Indication

○

1 – 4

LAN Ports: connects to your PC's Ethernet port, or

to the uplink port on your LAN's hub/switch, using the Ethernet cable.

○

WAN

WAN Port: connects to your WAN device, such as

ADSL or cable modem.

RESET Reset Button

○

1. Reboots the device

2. Reset s the syst em config uration t o the f acto ry defaults if pressed for more than 5 second s.

○

POWER

Power Input Jack: connects to the supplied AC

adapter

Chapter 2. Getting to Know RX3141 User’s Manual

○

2.4.3 Bottom View

Wall Mount Slots: You may use these slots to hang RX3141 on the wall to save space. Depending on your

○

particular requirement by taking into account the location of the power outlet, power cord length, Ethernet cable length and etc., you can hang RX3141 in 4 different orient ations: front pan el up, rear panel up, left side up or right side up.

Magnets: The magnets allow you to place RX3141 on any metal surface to save space.

○

RX3141 User’s Manual Chapter 2 Getting to Know

2.5 Placement Options

Depending on your environment, you may choose one of the three supported placement options for RX3141 – desktop placement, magnet mount and wall mount.

2.5.1 Desktop Placement

You may place RX3141 on any flat surface. The space- saving design of RX31 41 occupies only a smal l area on your desk.

2.5.2 Magnet Mount Instructions

Place RX3141 onto any metal surface that attracts magnet, such as most desktop computer housings, cabinets and etc.

2.5.3 Wall Mount Instructions:

1. Attach two screws on the wall, separated by 115mm if you want the front or rear panel facing upward, 76mm if you want left or right side facing upward. Make sure that the two screws are leveled. Note that there are four wall mount slots and you may choose any adjacent slots for wall mounting.

115mm or 76mm

2. Line up the wall mount slots with the screws and maneuver RX3141 so that both screws are inserted into the wall mount slots as indicated in the following figures.

Screws

Wall mount

Wall

mount

slots

Line up the wall mount slots w/ both screws.

Maneuver the switch so that both screws are inserted into the wall mount slots.

slots

RX3141 User’s Manual Chapter 3. Quick Start Guide

This Quick Start Guide provides basic instructions for connecting the RX3141 to a computer or a network and to the Internet.

f Part 1 provides instructions to set up the hardware. f Part 2 describes how to configure Internet properties on your computer(s). f Part 3 shows you how to configure basic settings on the RX3141 to get your LAN connected to the

After setting up and configuring th e devi ce, you can fo llow the instru ctions on p age 17 to v erify th at it is wo rking properly.

This Quick Start Guide assumes that y ou have alrea dy establi shed ADS L or cabl e modem servic e with you r Internet service provider (ISP). These instructions provide a basic configuration that should be compatible with your home or small office network setup. Refer to the subsequent chapters for additional configuration instructions.

Quick Start Guide

Internet.

3.1 Part 1 — Connecting the Hardware

In Part 1, you connect the device to an ADSL or a cable modem (which in turn is connected to a phone jack or a cable outlet), the power outlet, and your comput er or networ k.

Before you begin, turn the power o ff for all d evices. These include your computer(s), your LAN hub/swit ch (if appli cable),

WARNING

and the RX3141.

Figure 3.1 illustrates the hardware connections. Please follow the steps that follow for specific instructions.

3.1.1 Step 1. Connect an ADSL or a cable modem.

For the RX3141: Connect one end of the Ethernet cable to the po rt labeled WAN o n the rear panel of the device. Connect the other en d to the Et hernet port on th e ADSL or cable mod em.

3.1.2 Step 2. Connect computers or a Network.

If your LAN has no more than 4 computers, you can use an Ethernet cable to connect computers directly to the built-in switch on the device. Note that you should atta ch one end of the Ethernet cabl e to any of the port labeled 1 – 4 on the rear pane l of the router a nd conne ct the other end to t he Ethe rnet port of a comput er.

If your LAN has more than 4 computers, you can attach one end of an Ethe rnet cable to a hub or a swit ch (probably an uplink port; plea se refer to t he hub o r switch do cumentati ons for i nstru ctions) a nd the oth er to the Ethernet switch port (labeled 1 – 4) on the RX3141.

Note that either the crossover or straight-through Ethernet cable can be used to connect the built-in switch and computers, hubs or switches as the built-in switch is smart enough to make connections with either type of cables.

Chapter 3. Quick Start Guide RX3141 User’s Manual

3.1.3 Step 3. Attach the AC adapter.

Attach the AC adapter to the POWE R input j ack on the back of t he dev ice and pl ug in th e adapter to a wall outlet or a power strip.

3.1.4 Step 4. Power on RX3141, the ADSL or cable modem and power up your computers.

Plug the AC adapter to the powe r input ja ck of RX 3141. Turn o n your ADS L or cabl e mode m. Turn on an d boot up your computer(s) and/or any LAN devices su ch as wireless A P, hubs or switches.

Internet

Cable or ADSL Modem

RX3141i

Ethernet

cable

Wireless AP

Figure 3.1. Overview of Hardware Connections

You should verify that the LEDs are illuminated as indica ted in Table 3.1.

Table 3.1. LED Indicators

This LED: ...should be:

POWER

1 – 4

STATUS

LED

WAN

If the LEDs illuminate as expected, the RX3141 is working properly.

Solid green to indicate that the device is turned on. If this light is not on, check if the AC adapter is attached to the RX3141 and if it is plugged into a po wer sou rce.

Solid green to indicate that the device can communicate with your LAN or flashing when the device is sending or receiving data to/from your LAN com puter(s).

Solid green to indicate that the device has successfully established a connection with your ISP or flashing when the device is sending or receiving data to/from the Internet.

RX3141 User’s Manual Chapter 3. Quick Start Guide

3.2 Part 2 — Configuring Your Computers

Part 2 of the Quick Start Guide provides instru ctions fo r configuring t he network se ttings on your comput ers to work with the RX3141.

3.2.1 Before you begin

By default, the RX3141 automatically assigns all required network settings (e.g. IP address, DNS server IP address, default gateway IP address) to your PCs. You need only to configure your PCs to accept the network settings provided by the RX3141.

In some cases, you may want to configure network se ttings manually to some or all of your computers rather than allow the

Note

f If you have connected your PC via Et hernet to t he RX 3141, foll ow the i nstructi ons that correspo nd to

the operating system installed on you r PC.

RX3141 to do so. See “Assigning static IP addresses to your PCs” in page 15 for instructions.

3.2.2 Windows® XP PCs:

1. In the Windows task bar, click the

2. Double-click the Network Connections icon.

3. In the LAN or High-Speed Internet window, right-click on icon corresponding to your network interface card (NIC) and select

The Local Area Connection dialog box displ ays with a list of current ly installed net work items.

4. Ensure that the check box to the left of the item labeled Internet Protocol TCP/IP is checked, and click

5. In the Internet Protocol (TCP/IP) Properties dialog box, click the radio button labeled

IP address automatically automatically

<OK>

6. Click

button twice to confirm your changes, and close the Control Panel.

button.

. Also click the radio button labeled

<Start>

Properties

button, and then click

. (Often this icon is labeled Local Area Connection).

Control Panel

Obtain DNS server address

Obtain an

3.2.3 Windows® 2000 PCs:

First, check for the IP protocol and, if ne cessary, instal l it:

1. In the Windows task bar, click the

Panel

2. Double-click the

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

Network and Dial-up Connections

Properties

<Start>

button, point to

icon.

Settings

, and then click

Local Area Connection

Control

icon,

The Local Area Connection Properties dialog box displays 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 10.

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

button.

Chapter 3. Quick Start Guide RX3141 User’s Manual

5. In the Select Network Component Type dialog box, select

6. Select

Internet Protocol (TCP/IP)

in the Network Protocols list, and then click

Protocol

, and then click

You may be prompted to install files from your Windows 2000 installation CD or other media. Follow the instructions to install t he files.

7. If prompted, click

<OK>

button to restart your computer with the new settings.

Next, configure the PCs to accept IP a ddresses a ssigned by t he RX3 141:

8. In the Control Panel, double-click the

9. In Network and Dial-up Connections window, right-click the then select

Properties

10. In the Local Area Connection Properties dialog box, select click

button.

Network and Dial-up Connections

Local Area Connection

Internet Protocol (TCP/IP)

icon.

11. In the Internet Protocol (TCP/IP) Properties dialog box, click the radio button labeled

IP address automatically automatically

12. Click

<OK>

button twice to confirm and save your changes, and then close the Control Panel.

. Also click the radio button labeled

Obtain DNS server address

3.2.4 Windows® 95, 98, and Me PCs

1. In the Windows task bar, click the

Panel

<Start>

button, point to

Settings

, and then click

<OK>

Control

<Add>

button.

icon, and

, and then

Obtain an

2. Double-click the

In the Network dialog box, look for an entry start ed w/ “ adapter, and then click

Network

icon.

TCP/IP ->

” and the name of your network

button. You may have to scroll down the list to find this entry.

If the list includes such an entry, then the TCP/IP protocol has already been enabled. Skip to step 8.

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

4. In the Select Network Component Type dialog box, select

5. Select list, box and then click

Microsoft

in the Manufacturers list box, and then click

<OK>

button.

Protocol

TCP/IP

, and then click

in the Network Protocols

<Add>

You may be prompted to install files from your Windows 95, 98 or Me installation CD or other media. Follow the instruction s to instal l the file s.

6. If prompted, click

<OK>

button to restart your computer with the new settings.

Next, configure the PCs to accept IP i nformation a ssigned by t he RX3 141:

7. In the Control Panel, double-click the Network icon.

8. In the Network dialog box, select an entry started with “ adapter, and then click

button.

9. In the TCP/IP Properties dialog box, click the radio button labeled

automatically

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

Default Gateway

default LAN port IP address of the RX3141) in the “

TCP/IP ->”

New gatewa y

and the name of your network

Obtain an IP address

” tab. Enter 192.168.1.1 (the

” address field and click

button to add the default gateway entry.

button.

<Add>

11. Click

<OK>

button twice to confirm and save your changes, and then close the Control Panel.

12. If prompted to restart your computer, click

<OK>

button to do so with the new settings.

RX3141 User’s Manual Chapter 3. Quick Start Guide

3.2.5 Windows® NT 4.0 workstations:

First, check for the IP protocol and, if ne cessary, instal l it:

1. In the Windows NT task bar, click the

Panel

2. In the Control Panel window, double click the

3. In the Network dialog box, click the

The Protocols tab displays a li st of currently in stalle d network protocol s. If the li st include s TCP/IP Protocol, 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

You may be prompted to install files from your Windows NT installation CD or other media. Follow the instructions to install t he files.

After all files are installed, a window di splays t o inform y ou that a TCP/IP servi ce call ed DHCP can be set up to dynamically assign IP information.

6. Click

7. Open the Control Panel window, and then double-click the

8. In the Network dialog box, click the

9. In the Protocols tab, select

10. In the Microsoft TCP/IP Properties dialog box, click the radio button labeled

<Yes>

button to continue, and then click

Next, configure the PCs to accept IP a ddresses a ssigned by t he RX3 141:

TCP/IP

address from a DHCP server

<Start>

Protocols

, and then click

button, point to

Network

tab.

<OK>

tab.

icon.

TCP/IP

, and then click

button if prompted to restart your computer.

Settings

<Add>

Network

button.

, and then click

<OK>

button.

icon.

Obtain an IP

Control

11. Click

<OK>

button twice to confirm and save your changes, and then close the Control Panel.

3.2.6 Assigning static IP addresses to your PCs

In some cases, you may want to assign IP addresses to some or all of your PCs di rectly (often called “statically”), rather than allowing the RX3141 to assign them. This option may be desirable (but not required) if:

f You have obtained one or mo re public IP addresse s that yo u want to always asso ciate wit h spe cific

computers (for example, if you are using a computer as a public web server).

f You maintain different subnets on your LAN.

However, during the first time configurati on of yo ur RX3141, y ou must assi gn an IP ad dress in the 192.16 8.1.0 network for your PC, say 192.168.1.2, in order to establish connection between the RX3141 and your PC as the default LAN IP on RX3141 is pre-configured a s 192.168. 1.1. Ente r 255.25 5.255. 0 for t he subn et mask an d

192.168.1.1 for the default gateway. These sett ings may be changed lat er to reflect your true net work environment.

On each PC to which you want to assign static information, follow the instructions on pages 13 through 15 relating only to checking fo r and/or instal ling th e IP protoco l. Once it is i nstall ed, conti nue to foll ow the instructions for displaying each of the Internet Protocol (TCP/IP) properties. Instead of enabling dynamic assignment of the IP addresse s for the computer, DNS serv er, and default gat eway, click th e radio button s that enable you to enter the informatio n manually.

Your PCs must have IP addresses that place them in the same subnet as the RX3141’s LAN port. If you manually assi gn IP inform ation t o all you r LAN P Cs, you can foll ow the

Note

instructions in the section 5.1.1 to chan ge the LAN port IP add ress accordin gly.

Chapter 3. Quick Start Guide RX3141 User’s Manual

3.3 Part 3 — Quick Configuration of the RX3141

In Part 3, you log into the Configuration Manager o n the RX3141 and conf igure basic setting s for your route r. Your ISP should provide you wit h the necessa ry inform ation to complete thi s step. Note the i ntent here i s to quickly get the RX3141 up and running, instructions are concise. You may refer to corresponding chapters for more details.

3.3.1 Setting Up the RX3141

Follow these instructions to setup the RX3141:

1. Before accessing the Configuration Manager in RX3141, make sure that the HTTP proxy setting is disabled in your browser. In IE, click “ “

LAN settings…

2. On any PC connected to one of the four LAN ports on the RX3141, open your Web browser, and type the following URL in the address/location box, and press

This is the predefined IP address for the LAN port on the RX3141. A login screen displays, as shown in Figure 3.2.

” and then uncheck “

Tools

” Î “

Internet Options…

Use proxy server for your LAN …

<Enter>

http://192.168.1.1

” Î “

”

Connections

” tab Î

Figure 3.2. Login Screen

If you have problem connecting to the RX3141, you may want to check if your PC is configured to accept IP address assignment from the RX3141. Another method is to set the IP address of your PC to any IP address in the 192.168.1.0 network, such as 192.1 68.1.2.

3. Enter your username and password, and then click The first time you log into this program, use these defaults:

Default Username: Default Password:

You can change the password at any time (see section 11.1 Lo gin

Note

The System Information page di splays each time y ou log into t he Co nfiguratio n Manag er (sho wn in Figure 3.3).

Password and System-Wide Settings ).

admin admin

to enter the Configuration Manager.

RX3141 User’s Manual Chapter 3. Quick Start Guide

Figure 3.3. System Status Page

4. Follow the instructions described in Chapter 5 "Router Connection Setup” to set up the LAN and WAN settings for RX3141.

After completing the basic conf iguratio n for RX3141, re ad the foll owing section t o determi ne if you can access the Internet.

3.3.2 Testing Your Setup

At this point, the RX3141 should enable any comput ers on your LA N to use the RX314 1’s ADSL or cable modem connection to access the Internet.

To test the Internet connection, open you r web brow ser, and ty pe the URL of any exte rnal webs ite (such as

http://www.asus.com

connects to the site. You should also be able to browse the web site through your web browser. If the LEDs do not illuminate as expected or the web page does not display, see Appendix 13 for

troubleshooting suggestions.

). The LED labeled WAN should be blinkin g rapidly and may appear solid as the

device

Chapter 3. Quick Start Guide RX3141 User’s Manual

3.3.3 Default Router Settings

In addition to handling the DSL connection to your ISP, the RX314 1 can provide a variety of service s to your network. The device is pre-configured wit h default setti ngs for use with a typical ho me or small office net work.

Table 3.2 lists some of the most important default setting s; these and othe r features are describ ed fully in the subsequent chapters. If you are familiar with network configuration settings, review the settings in Table 3.2 to verify that they meet the needs of your network. F ollow the instructions to change them if necessary. If you are unfamiliar with these settings, t ry using t he devi ce without modification, or contact your ISP for assistance.

Before you modifying any settings, review Chapter 4 for ge neral informati on about accessi ng and using the Configuration Manager program. We strongly recommend that you contact your ISP prior to changing the default configuration.

Table 3.2. Default Settings Summ ary

Option Default Setting Explanation/Instructions

DHCP (Dynamic Host Configuration Protocol)

DHCP server enabled with the following pool of addresses:

192.168.1.100 through

192.168.1.149

The RX3141 maintains a pool of priv ate IP addresses for dynamic assignment to your LAN computers. To use thi s service, you must have set up your computers to accept IP information dynamically, a s described in Part 2 of the Quick Start Guide. See section 6.1 for a n expla nation of the DHCP service.

LAN Port IP Address

Static IP address: 192.168.1.1 subnet mask: 255.255.255. 0

This is the IP address of the LA N port on the RX3141. The LAN port connects the device to your Ethernet network. Typi cally, you will not need to change this address. See section 5.1.1 LAN IP Address for instructions.

RX3141 User’s Manual Chapter 4. Using the Configuration Manager

The RX3141 includes a preinstalled program called the Configuration Manager, which provides an interface to the software installed on the device. It enables y ou to conf igure th e device sett ings to m eet the ne eds of y our network. You access it through your web browser fro m any PC co nnected t o the RX 3141 via WAN ports.

This chapter describes the general guides for using the Configuration Manager.

Using the Configuration Manager

the LAN or the

4.1 Log into the Configuration Manager

The Configuration Manager program is preinstalled on the RX3141. To access the program, you need the following:

f A computer connected to the LAN or WAN port on the RX3141 as described in the Quick Start Guide

chapter.

f A web browser installed on the computer. The program is designed to work best with Microsoft

Internet Explorer® 6.0 or later.

You may access the program from any computer connected to the RX3141 via the L AN or WAN ports. However, the instructions p rovided here are fo r compute rs conne cted via t he LA N ports.

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

<Enter>

http://192.168.1.1

This is the predefined IP address for the LAN port on the RX3141. A login screen displays, as shown in Figure 4.1.

Figure 4.1. Configuration Manager Login Screen

2. Enter your username and password, and then click The first time you log into the program, use thes e defaults:

Default Username: Default Password:

You can change the password at any time (see section 11.1 Lo gin

Note

The System Information page displays ev ery time you log int o the Configurati on Manag er (shown in Figure 4.3 on page 22).

Password and System-Wide Settings ).

admin admin

Chapter 4. Using the Configuration Manager RX3141 User’s Manual

4.2 Functional Layout

Typical Typical Configuration page consis ts of several elem ents – banner, men u, menu navigatio n tips, configuration, and on-line help. You can click on any menu item to expand/contract any menu groups or to access a specific configuration page. The conf iguratio n pane is where you int eract wit h the Configur ation Manager to configure the settings for RX3141. Menu navigation tips show how the current configuration can be accessed via the menus.

Banner

Menu navigation tips

Configuration

Figure 4.2. Typical Configur ation Man ager Page

4.2.1 Menu Navigation

f To expand a group of related menus: double cli ck the menu or th e icon, . f To contract a group of related menus: double click the menu or the icon,

f To open a specific configuration page, click the menu or the ico n,

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