Asus RX3041H User manual

RX3041H
User’s Manual
Revision 1.3
Aug. 19, 2004

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Table of Contents
1Introduction ..............................................1
1.1 Features................................................................................................................1
1.2 System Requirements..........................................................................................1
1.3 Using this Document............................................................................................1
1.3.1 Notational conventions...............................................................................1
1.3.2 Typographical conventions........................................................................1
1.3.3 Special messages......................................................................................2
2Getting to Know the RX3041H.................3
2.1 Parts List...............................................................................................................3
2.2 Front Panel ...........................................................................................................3
2.3 Rear Panel............................................................................................................4
2.4 Major Features......................................................................................................4
2.4.1 Firewall and NAT Features........................................................................4
2.4.1.1 Address Sharing and Management..............................................5
2.4.1.2 ACL (Access Control List) .............................................................5
2.4.1.3 Stateful Packet Inspection.............................................................5
2.4.1.4 Defense against DoS Attacks........................................................6
2.4.1.5 Application Command Filtering.....................................................6
2.4.1.6 Application Level Gateway (ALG).................................................7
2.4.1.7 URL Filtering..................................................................................7
2.4.1.8 Log and Alerts................................................................................7
2.4.1.9 Remote Access..............................................................................7
3Quick Start Guide.....................................9
3.1 Part 1 — Connecting the Hardware.....................................................................9
3.1.1 Step 1. Connect an ADSL or a cable modem...........................................9
3.1.2 Step 2. Connect computers or a LAN........................................................9
3.1.3 Step 3. Attach the AC adapter...................................................................9
3.1.4 Step 4. Turn on the RX3041H, the ADSL or cable modem and power up
your computers.........................................................................................10
3.2 Part 2 — Configuring Your Computers..............................................................11
3.2.1 Before you begin......................................................................................11
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3.2.2 Windows® XP PCs:.................................................................................11
3.2.3 Windows® 2000 PCs:..............................................................................11
3.2.4 Windows® 95, 98, and Me PCs ..............................................................12
3.2.5 Windows® NT 4.0 workstations:..............................................................12
3.2.6 Assigning static IP addresses to your PCs .............................................13
3.3 Part 3 — Quick Configuration of the RX3041H.................................................13
3.3.1 Buttons Used in Setup Wizard.................................................................14
3.3.2 Setting Up the RX3041H..........................................................................14
3.3.3 Testing Your Setup ..................................................................................20
3.3.4 Default Router Settings............................................................................20
4Getting Started with the Configuration
Manager.................................................21
4.1 Log into the Configuration Manager ..................................................................21
4.2 Functional Layout...............................................................................................22
4.2.1 Setup Menu Navigation Tips....................................................................22
4.2.2 Commonly Used Buttons and Icons........................................................22
4.3 Overview of System Configuration ....................................................................23
5Configuring LAN Settings.......................25
5.1 LAN IP Address..................................................................................................25
5.1.1 LAN IP Configuration Parameters...........................................................25
5.1.2 Configuring the LAN IP Address..............................................................25
5.2 DHCP (Dynamic Host Control Protocol)............................................................26
5.2.1 Introduction...............................................................................................26
5.2.1.1 What is DHCP?............................................................................26
5.2.1.2 Why use DHCP?..........................................................................26
5.2.2 DHCP Server Configuration.....................................................................27
5.2.2.1 DHCP Configuration Parameters................................................27
5.2.2.2 Configuring DHCP Server...........................................................27
5.2.2.3 Viewing Existing IP Address Lease.............................................28
5.2.3 Fixed DHCP Lease..................................................................................28
5.2.3.1 Fixed DHCP Lease Configuration Parameters...........................28
5.2.3.2 Add a Fixed DHCP Lease...........................................................29
5.2.3.3 Delete a Fixed DHCP Lease.......................................................29
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5.2.3.4 Viewing Fixed DHCP Lease Table..............................................29
5.3 DNS.....................................................................................................................29
5.3.1 About DNS................................................................................................29
5.3.2 Assigning DNS Addresses.......................................................................30
5.3.3 Configuring DNS Relay............................................................................30
5.4 Viewing LAN Statistics........................................................................................31
6Configuring WAN Settings.....................33
6.1 WAN Connection Mode......................................................................................33
6.2 PPPoE ................................................................................................................33
6.2.1 WAN PPPoE Configuration Parameters.................................................33
6.2.2 Configuring PPPoE for WAN...................................................................35
6.3 Dynamic IP..........................................................................................................36
6.3.1 WAN Dynamic IP Configuration Parameters..........................................36
6.3.2 Configuring Dynamic IP for WAN............................................................36
6.4 Static IP...............................................................................................................37
6.4.1 WAN Static IP Configuration Parameters...............................................37
6.4.2 Configuring Static IP for WAN .................................................................37
6.5 Viewing WAN Statistics......................................................................................38
7Configuring Routes................................41
7.1 Overview of IP Routes........................................................................................41
7.1.1 Do I need to define IP routes?.................................................................41
7.2 Dynamic Routing using RIP (Routing Information Protocol).............................41
7.2.1 Dynamic Routing (RIP) Configuration Parameters.................................41
7.2.2 Configuring RIP........................................................................................42
7.3 Static Routing......................................................................................................43
7.3.1 Static Route Configuration Parameters...................................................43
7.3.2 Adding a Static Route ..............................................................................43
7.3.3 Deleting a Static Route ............................................................................43
7.3.4 Viewing the Routing Table.......................................................................44
8Configuring DDNS .................................45
8.1 DDNS Configuration Parameters.......................................................................46
8.2 Configuring RFC-2136 DDNS Client.................................................................47
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8.3 Configuring HTTP DDNS Client.........................................................................48
8.4 Configuring Local Host Table.............................................................................48
8.4.1.1 Add a Host Table Entry ...............................................................49
8.4.1.2 Modify a Host Table Entry...........................................................49
8.4.1.3 Delete a Host Table Entry...........................................................49
8.4.1.4 View the Host Table.....................................................................49
9Configuring Firewall/NAT Settings.........51
9.1 Firewall Overview...............................................................................................51
9.1.1 Stateful Packet Inspection .......................................................................51
9.1.2 DoS (Denial of Service) Protection..........................................................51
9.1.3 Firewall and Access Control List (ACL)...................................................51
9.1.3.1 Priority Order of ACL Rule...........................................................51
9.1.3.2 Tracking Connection State..........................................................52
9.1.4 Default ACL Rules....................................................................................52
9.2 NAT Overview.....................................................................................................52
9.2.1 Static (One to One) NAT..........................................................................52
9.2.2 Dynamic NAT...........................................................................................53
9.2.3 NAPT (Network Address and Port Translation) or PAT (Port Address
Translation)...............................................................................................54
9.2.4 Reverse Static NAT..................................................................................55
9.2.5 Reverse NAPT / Virtual Server................................................................55
9.3 ACL Rule Configuration Parameters.................................................................55
9.4 Configuring Inbound ACL Rules........................................................................57
9.4.1 Add an Inbound ACL Rule.......................................................................58
9.4.2 Modify an Inbound ACL Rule...................................................................58
9.4.3 Delete an Inbound ACL Rule...................................................................59
9.4.4 Display Existing Inbound ACL Rules.......................................................59
9.5 Configuring Outbound ACL Rules .....................................................................59
9.5.1 Add an Outbound ACL Rule....................................................................59
9.5.2 Modify an Outbound ACL Rule................................................................60
9.5.3 Delete an Outbound ACL Rule................................................................60
9.5.4 Display Existing Outbound ACL Rules....................................................61
9.6 Configuring URL Filters......................................................................................61
9.6.1 URL Filter Configuration Parameters......................................................61
9.6.2 Add an URL Filter Rule............................................................................61
9.6.3 Modify an URL Filter Rule........................................................................62
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9.6.4 Delete an URL Filter Rule........................................................................62
9.6.5 View Existing URL Filter Rules................................................................62
9.7 Configuring Advanced Firewall Features – (Firewall ÎAdvanced).................62
9.7.1 Configuring Self Access Rules ................................................................63
9.7.1.1 Self Access Configuration Parameters.......................................63
9.7.1.2 Add a Self Access Rule...............................................................63
9.7.1.3 Modify a Self Access Rule...........................................................64
9.7.1.4 Delete a Self Access Rule...........................................................64
9.7.1.5 View Configured Self Access Rules............................................64
9.7.2 Configuring Service List...........................................................................64
9.7.2.1 Service List Configuration Parameters .......................................64
9.7.2.2 Add a Service...............................................................................65
9.7.2.3 Modify a Service ..........................................................................65
9.7.2.4 Delete a Service...........................................................................66
9.7.2.5 View Configured Services...........................................................66
9.7.3 Configuring DoS Settings.........................................................................66
9.7.3.1 DoS Protection Configuration Parameters..................................66
9.7.3.2 Configuring DoS Settings............................................................67
9.8 Firewall Policy List – (Firewall ÎPolicy List) ....................................................68
9.8.1 Configuring Application Filter...................................................................69
9.8.1.1 Application Filter Configuration Parameters...............................69
9.8.1.2 Add an Application Filter..............................................................70
9.8.1.2.1 FTP Example: Add a FTP Filter Rule to Block FTP DELETE
Command.....................................................................................71
9.8.1.2.2 HTTP Example: Add a HTTP Filter Rule to Block JAVA Applets
and Java Archives .......................................................................73
9.8.1.3 Modify an Application Filter .........................................................74
9.8.1.4 Delete an Application Filter..........................................................75
9.8.2 Configuring IP Pool..................................................................................75
9.8.2.1 IP Pool Configuration Parameters...............................................75
9.8.2.2 Add an IP Pool.............................................................................75
9.8.2.3 Modify an IP Pool.........................................................................76
9.8.2.4 Delete an IP Pool.........................................................................76
9.8.2.5 IP Pool Example..........................................................................77
9.8.3 Configuring NAT Pool..............................................................................78
9.8.3.1 NAT Pool Configuration Parameters...........................................78
9.8.3.2 Add a NAT Pool...........................................................................79
9.8.3.3 Modify a NAT Pool.......................................................................79
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9.8.3.4 Delete a NAT Pool.......................................................................80
9.8.3.5 NAT Pool Example......................................................................80
9.8.4 Configuring Time Range..........................................................................81
9.8.4.1 Time Range Configuration Parameters......................................81
9.8.4.2 Add a Time Range.......................................................................82
9.8.4.3 Modify a Time Range ..................................................................82
9.8.4.4 Delete a Time Range...................................................................82
9.8.4.5 Delete a Schedule in a Time Range...........................................82
9.8.4.6 Time Range Example..................................................................83
9.9 Firewall Statistics – Firewall ÎStatistics...........................................................83
10 Configuring Remote Access..................85
10.1 Remote Access ..................................................................................................85
10.2 Manage User Groups and Users.......................................................................85
10.2.1 User Group Configuration Parameters....................................................85
10.2.2 Add a User Group and/or a User.............................................................86
10.2.3 Modify a User Group or a User................................................................87
10.2.4 Delete a User Group or a User................................................................87
10.2.5 User Group and Users Configuration Example ......................................88
10.3 Configure Group ACL Rules..............................................................................88
10.3.1 Group ACL Specific Configuration Parameters......................................88
10.3.2 Add a Group ACL Rule............................................................................88
10.3.3 Modify a Group ACL Rule........................................................................89
10.3.4 Delete a Group ACL Rule........................................................................90
10.3.5 Display Existing Group ACL Rules..........................................................90
10.4 Remote User Login Process..............................................................................90
10.5 Configure Firewall for Remote Access ..............................................................91
11 System Management.............................93
11.1 Configure System Services................................................................................93
11.2 Change the Login Password and Management Station IP Addresses............93
11.2.1 Change the Login Password....................................................................93
11.2.2 Configure Management Stations.............................................................94
11.2.2.1 Management Station Configuration Parameters.....................................94
11.2.2.2 Add a Management Station Group..........................................................95
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11.2.2.3 Modify a Management Station Group .....................................................96
11.2.2.4 Delete a Management Station Group......................................................96
11.3 Configure System Identity..................................................................................96
11.4 Setup Date and Time .........................................................................................96
11.4.1 Date/Time Configuration Parameters......................................................97
11.4.2 Maintain Date and Time...........................................................................97
11.4.3 View the System Date and Time.............................................................98
11.5 SNMP Setup.......................................................................................................98
11.5.1 SNMP Configuration Parameters............................................................98
11.5.2 Configuring SNMP ...................................................................................99
11.6 System Configuration Management..................................................................99
11.6.1 Reset to Factory Settings.........................................................................99
11.6.1.1 Reset to Factory Settings Using Configuration Manager .......................99
11.6.1.2 Reset to Factory Settings Using Reset Button......................................100
11.6.2 Backup System Configuration...............................................................100
11.6.3 Restore System Configuration...............................................................100
11.7 Upgrade Firmware............................................................................................101
11.8 Reset the RX3041H .........................................................................................102
11.9 Logout Configuration Manager ........................................................................102
AALG Configuration ...............................105
BSystem Specifications..........................109
B.1 Hardware Specification ....................................................................................109
B.2 Default Settings ................................................................................................109
CIP Addresses, Network Masks, and
Subnets................................................113
C.1 IP Addresses ....................................................................................................113
C.1.1 Structure of an IP address.....................................................................113
C.2 Network classes................................................................................................113
C.3 Subnet masks...................................................................................................114
DTroubleshooting...................................117
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D.1 Diagnosing Problem using IP Utilities..............................................................118
D.1.1 Ping.........................................................................................................118
D.1.2 Nslookup.................................................................................................119
EGlossary...............................................121
FIndex ....................................................127
List of Figures
Figure 2.1. Front Panel LEDs...................................................................................................................................3
Figure 2.2. Rear Panel Connections........................................................................................................................4
Figure 3.1. Overview of Hardware Connections .................................................................................................. 10
Figure 3.2. Login Screen....................................................................................................................................... 14
Figure 3.3. Setup Wizard Home Page.................................................................................................................. 15
Figure 3.4. Setup Wizard – Password Configuration Page ................................................................................. 15
Figure 3.5. Setup Wizard – System Identity Configuration Page ........................................................................ 16
Figure 3.6. Setup Wizard – Date/Time Configuration Page................................................................................. 16
Figure 3.7. Setup Wizard – LAN IP Configuration Page...................................................................................... 17
Figure 3.8. Setup Wizard – LAN DHCP Server Configuration Page...................................................................17
Figure 3.9. Setup Wizard – WAN PPPoE Configuration Page............................................................................ 18
Figure 3.10. Setup Wizard – WAN Dynamic IP Configuration Page...................................................................18
Figure 3.11. Setup Wizard – WAN Static IP Configuration Page........................................................................ 19
Figure 4.1. Configuration Manager Login Screen................................................................................................ 21
Figure 4.2. Typical Configuration Manager Page................................................................................................. 22
Figure 4.3. System Information Page................................................................................................................... 23
Figure 5.1. LAN IP Address Configuration ........................................................................................................... 26
Figure 5.2. DHCP Configuration........................................................................................................................... 28
Figure 5.3. Sample DHCP Lease Table............................................................................................................... 28
Figure 5.4. Fixed DHCP Lease Configuration Page............................................................................................ 29
Figure 5.5. LAN Statistics Page............................................................................................................................ 31
Figure 6.1. WAN PPPoE Configuration Page...................................................................................................... 35
Figure 6.2. WAN PPPoE Configuration Summary............................................................................................... 35
Figure 6.3. WAN Dynamic IP (DHCP client) Configuration ................................................................................. 36
Figure 6.4. WAN Dynamic IP (DHCP client) Configuration Summary................................................................ 37
Figure 6.5. WAN Static IP Configuration.............................................................................................................. 38
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