Asus SL6000 User manual

VPN ADSL Router
SL6000/SL6300
®
User’s Manual

2ASUS VPN ADSL Router
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Copyright Information
Product Name: ASUS VPN ADSL Router (SL6000/SL6300)
Manual Revision: 1 E1428
Release Date: October 2003

ASUS VPN ADSL Router 3
Copyright Information
ASUSTeK COMPUTER INC. (Asia-Pacific)
Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112
General Tel: [phone]
General Fax: [phone]
Web Site: www.asus.com.tw
Technical Support
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Support Fax: [phone]
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4ASUS VPN ADSL Router
Table of Contents
1. Introduction ............................................................................. 9
1.1 Features .................................................................................... 9
1.2 System Requirements ............................................................... 9
1.3 Using this Document................................................................ 10
1.4 Getting Support ............................................................................. 10
2. Getting to Know SL6000/SL6300 ......................................... 11
2.1 Parts List ....................................................................................... 11
2.2 Front Panel ................................................................................... 11
2.3 Rear Panel .................................................................................... 12
3. Quick Start Guide.................................................................. 13
3.1 Connecting the Hardware .............................................................. 13
3.1.1 Connect theADSL line .......................................................... 13
3.1.2 Connect the computers or a LAN .......................................... 14
3.1.3Attach the power adapter ...................................................... 14
3.1.4 Turn on the SL6000/SL6300 and your computers ................. 14
3.2 Configuring Your Computers.......................................................... 15
3.2.1 Before you begin................................................................... 15
3.2.2 Windows® XP PCs: .............................................................. 15
3.2.3 Windows® 2000 PCs:........................................................... 16
3.2.4 Windows® Me PCs............................................................... 17
3.2.5 Windows® 95, 98 PCs: ......................................................... 18
3.2.6 Windows® NT 4.0 workstations: ........................................... 19
3.2.7Assigning static Internet information to your PCs................... 20
3.3 Quick Configuration of SL6000/SL6300 ......................................... 20
3.3.1 Buttons Used in Setup Wizard .............................................. 21
3.3.2 Setting Up the SL6000/SL6300............................................. 21
3.3.3 Testing Your Setup ................................................................ 31
3.3.4 Default Router Settings ......................................................... 31
4. Starting the Configuration Manager.................................... 31
4.1 Log into Configuration Manager..................................................... 31
4.2 Functional Layout .......................................................................... 32
4.2.1 Setup Menu Navigation Tips ................................................. 32
4.2.2 Commonly Used Buttons and Icons ...................................... 32
4.3 The Home Page of Configuration Manager.................................... 34

ASUS VPN ADSL Router 5
Table of Contents
5. System Information .............................................................. 35
6. Configuring LAN Settings .................................................... 36
6.1 LAN IPAddress ............................................................................. 36
6.1.1 LAN IP Configuration Parameters ......................................... 36
6.1.2 Configuring the LAN IPAddress............................................ 36
6.2 DHCP (Dynamic Host Configuration Protocol) ............................... 38
6.2.1 What is DHCP? .................................................................... 38
6.2.2 Why use DHCP? .................................................................. 39
6.2.3 Configuring DHCP Server ..................................................... 39
6.2.4 Viewing Current DHCPAddress Assignments ....................... 40
6.3 DNS .............................................................................................. 40
6.3.1 About DNS............................................................................ 40
6.3.2 Assigning DNS Addresses .................................................... 42
6.3.3 Configuring DNS Relay......................................................... 42
6.4 Viewing LAN Statistics................................................................... 43
7. Configuring WAN/ADSL Settings ........................................ 44
7.1 ADSL Connection .......................................................................... 44
7.2 WAN Configuration........................................................................ 45
7.2.1 MPoA Bridged and PPPoE Relay:......................................... 45
7.2.2 MPoA Routed: ...................................................................... 45
7.2.3 IPoA Routed: ........................................................................ 45
7.2.4 PPPoA Routed and PPPoE Routed: ..................................... 46
7.3 Viewing WAN/ADSL Statistics ....................................................... 47
8. Configuring Routes .............................................................. 48
8.1 Overview of IP Routes................................................................... 48
8.1.1 Do I need to define IP routes?............................................... 48
8.2 DNS Relay Configuration .............................................................. 49
8.3 Static Routing................................................................................ 49
8.3.1 Static Route Configuration Parameters ................................. 49
8.3.2 Adding Static Routes............................................................. 50
8.3.3 Modifying Static Routes ........................................................ 50
8.3.4 Deleting Static Routes .......................................................... 51
8.3.5 Viewing the Static Routing Table ........................................... 51

6ASUS VPN ADSL Router
9. Configuring Firewall/NAT Settings ...................................... 52
9.1 DoS Protection and Stateful Packet Inspection .............................. 52
9.2 Default ACL Rules ......................................................................... 53
9.3 Configuring Inbound ACL Rules..................................................... 53
9.3.2Add Inbound ACL Rules ........................................................ 60
9.3.3 Modify InboundACL Rules.................................................... 61
9.3.4 Delete InboundACL Rules .................................................... 61
9.3.5 Display InboundACL Rules .................................................. 61
9.4 Configuring OutboundACL Rules .................................................. 62
9.4.2Add an OutboundACL Rule .................................................. 68
9.4.3 Modify OutboundACL Rules ................................................. 69
9.4.4 Delete OutboundACL Rules ................................................. 69
9.4.5 Display OutboundACL Rules................................................ 69
9.5 Configuring GroupACL Rules........................................................ 70
9.5.1Add/Delete a User Group...................................................... 70
9.6 Configuring Self Access Rules....................................................... 72
9.6.1Add a SelfAccess Rule ......................................................... 72
9.6.2 View SelfAccess Summary .................................................. 72
9.6.3 Delete SelfAccess Rule........................................................ 72
9.7 Configuring Service List................................................................. 73
9.7.1 Options in Service Configuration Page.................................. 74
9.7.2Add a Service ....................................................................... 74
9.7.3 Modify a Service ................................................................... 74
9.7.4 Delete a Service ................................................................... 75
9.7.5 View Configured Services ..................................................... 75
9.8 DoS (Denial of Service) ................................................................. 76
9.8.1 SYN FloodingAttack Check .................................................. 76
9.8.2 WinnukeAttack Check .......................................................... 76
9.8.3 MIME FloodAttack Check..................................................... 76
9.8.4 Maximum IP Fragment Count ............................................... 77
Table of Contents

ASUS VPN ADSL Router 7
9.9 Policy List ...................................................................................... 78
9.9.1 Application Filter ................................................................... 78
9.9.2 NAT Pool .............................................................................. 81
9.9.3 IP Pool.................................................................................. 82
9.9.4 Firewall User......................................................................... 84
9.9.5 Time Range .......................................................................... 86
9.10 Firewall Statistics......................................................................... 88
10.2 Establish VPN Connection UsingAutomatic Keying..................... 91
10.2.1 VPN Tunnel Configuration Parameters forAutomatic Keying91
10.2.2 Add a Rule for VPN Connection Using Preshared Key ........ 95
10.2.3 Modify VPN Rules............................................................... 96
10.2.4 Delete VPN Rules............................................................... 97
10.2.5 Display VPN Rules ............................................................. 97
10.3 Establish VPN Connection Using Manual Keys ........................... 97
10.3.1 VPN Tunnel Configuration Parameters - Manual Key .......... 99
10.3.2 Add a Rule for VPN Connection Using Manual Key........... 101
10.3.3 Modify VPN Rules............................................................. 102
10.3.4 Delete VPN Rules............................................................. 103
10.3.5 Display VPN Rules ........................................................... 103
10.4 VPN Statistics ........................................................................... 103
11.System Log.......................................................................... 106
12.System Management .......................................................... 107
12.1 Global Setting Configuration ...................................................... 107
12.2 UserAccount Management ....................................................... 109
12.3 Modify System Information ........................................................ 109
12.4 Setup Time Zone ....................................................................... 109
12.4.1 Change/View the System Time Zone ................................ 110
12.5 System Configuration Management............................................111
12.5.1 Reset System Configuration to Default...............................111
12.5.2 Backup System Configuration ............................................111
12.5.3 Restore System Configuration .......................................... 112
12.6 Upgrade Firmware......................................................................113
Table of Contents

8ASUS VPN ADSL Router
13.System Reset ...................................................................... 114
14.Logout Configuration Manager ......................................... 115
A. IP Addresses, Network Masks, & Subnets ....................... 116
A.1 IPAddresses................................................................................116
A.1.1 Structure of an IP address .................................................. 116
A.1.2 Network classes ..................................................................117
A.2 Subnet masks ..............................................................................118
B. Troubleshooting.................................................................. 119
B.1 Recall default configuration by “RESET” button.......................... 122
B.2 Diagnosing Problem using IP Utilities .......................................... 125
B.2.1 ping .................................................................................... 125
B.2.2 nslookup............................................................................. 126
C. Glossary............................................................................... 127
Table of Contents

ASUS VPN ADSL Router 9
Chapter 1
Chapter 1
1. Introduction
Congratulations on becoming the owner of the SL6000/SL6300 VPN ADSL
Router. Your LAN (local area network) will now be able to access the Internet
via SL6000/SL6300’s ADSL connection.
This User Manual will show you how to set up the SL6000/SL6300 VPN
ADSL Router, and how to customize its configuration to get the most out of
this product.
1.1 Features
• Built-inADSLmodem in SL6000 (G.992.1AnnexA) / SL6300 (G.992.1
Annex B), which offers up to 8Mbps/800Kbps internet surf speed for
Downstream/Upstream, respectively.
• 10/100Base-T Ethernet router to provide Internet connectivity to all
computers on your LAN
• NAT (Network Address Translation), Firewall, and IPSec VPN func-
tions to provide secure Internet access for your LAN
• Automatic network address assignment through DHCP Server
• Services including IProute and DNS configuration, RIP, and IP perfor-
mance monitoring
• Configuration program accessible via a web browser, such as Microsoft
Internet Explorer. Note that Netscape is not supported.
1.2 System Requirements
In order to use the SL6000/SL6300 VPN ADSL Router for Internet access,
you must have the following:
• ADSL service subscription from your ISP.
• One or more computers each containing an Ethernet 10Base-T/100Base-
T network interface card (NIC).
• (Optional)An Ethernet hub/switch, if you are connecting the device to
more than four computers on an Ethernet network.
• For system configuration using the supplied web-based program: a web
browser such as Internet Explorer v5.5 or later