ZyXEL Communications Prestige 660W Series User manual

Prestige 660W/HW Series
ADSL Gateway with 802.11g Wireless
User's Guide
Version 3.40
August 2004

Prestige 660W/HW Series User’s Guide
Copyright i
Copyright
Copyright © 2004by ZyXEL Communications Corporation.
The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a
retrieval system, translated into any language, or transmitted inany form or by any means, electronic,
mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written
permission of ZyXEL Communications Corporation.
Published by ZyXEL Communications Corporation. All rights reserved.
Disclaimer
ZyXEL does not assume any liability arising out of the application or use of any products, or software
described herein. Neither does it convey any license under its patent rights nor the patent rights of others.
ZyXEL further reserves the right to make changes in any products described herein without notice. This
publication is subject to change without notice.
Trademarks
ZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL Communications, Inc.
Other trademarks mentioned in this publication are used for identification purposes only and may be
properties of their respective owners.

Prestige 660W/HW Series User’s Guide
FCC Statement iii
Federal Communications Commission
(FCC) Interference Statement
This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may cause undesired
operations.
This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a commercial environment. This equipment generates, uses, and can radiate radio frequency
energy, and if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications.
If this equipment does cause harmful interference to radio/television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and the receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
4. Consult the dealer or an experienced radio/TV technician for help.
Notice 1
Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.
Certifications
1. Go to www.zyxel.com
2. Select your product from the drop-down list box on the ZyXEL home page to go to that product's page.
3. Select the certification you wish to view from this page

Prestige 660W/HW Series User’s Guide
ZyXEL Limited Warranty v
ZyXEL Limited Warranty
ZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials
or workmanship for a period of up to two years from the date of purchase. During the warranty period, and
upon proof of purchase, should the product have indications of failure due to faulty workmanship and/or
materials, ZyXEL will, at its discretion, repair or replace the defective products or components without
charge for either parts or labor, and to whatever extent it shall deem necessary to restore the product or
components to proper operating condition. Any replacement will consist of a new or re-manufactured
functionally equivalent product of equal value, and will be solely at the discretion of ZyXEL. This warranty
shall not apply if the product is modified, misused, tampered with, damaged by an act of God, or subjected
to abnormal working conditions.
Note
Repair or replacement, as provided under this warranty, is the exclusive remedy of the purchaser. This
warranty is in lieu of all other warranties, express or implied, including any implied warranty of
merchantability or fitness for a particular use or purpose. ZyXEL shall in no event be held liable for indirect
or consequential damages of any kind of character to the purchaser.
To obtain the services of this warranty, contact ZyXEL's Service Center for your Return Material
Authorization number (RMA). Products must be returned Postage Prepaid. It is recommended that the unit
be insured when shipped. Any returned products without proof of purchase or those with an out-dated
warranty will be repaired or replaced (at the discretion of ZyXEL) and the customer will be billed for parts
and labor. All repaired or replaced products will be shipped by ZyXEL to the corresponding return address,
Postage Paid. This warranty gives you specific legal rights, and you may also have other rights that vary
from country to country.
Safety Warnings
1. To reduce the risk of fire, use only No. 26 AWG or larger telephone wire.
2. Do not use this product near water, for example, in a wet basement or near a swimming pool.
3. Avoid using this product during an electrical storm. There may be a remote risk of electric shock from
lightening.

Prestige 660W/HW Series User’s Guide
Customer Support vii
Customer Support
Please have the following information ready when you contact customer support.
• Product model and serial number.
• Warranty Information.
• Date that you received your device.
• Brief description of the problem and the steps you took to solve it.
SUPPORT E-MAIL TELEPHONE1WEB SITEMETHOD
LOCATION SALES E-MAIL FAX1FTP SITE
REGULAR MAIL
[email protected]m.tw [phone] www.zyxel.com
www.europe.zyxel.com
WORLDWIDE
[e-mail] [phone] ftp.zyxel.com
ftp.europe.zyxel.com
ZyXEL Communications Corp.
6 Innovation Road II
Science Park
Hsinchu 300
Taiwan
[email protected]m [phone]
[phone]
www.us.zyxel.comNORTH
AMERICA
[e-mail] [phone] ftp.us.zyxel.com
ZyXEL Communications Inc.
1130 N. Miller St.
Anaheim
CA 92806-2001
U.S.A.
[email protected] [phone] www.zyxel.deGERMANY
[e-mail] [phone]
ZyXEL Deutschland GmbH.
Adenauerstr. 20/A2 D-52146
Wuerselen
Germany
[phone]FRANCE [email protected]
[phone]
www.zyxel.fr ZyXEL France
1 rue des Vergers
Bat. 1 / C
69760 Limonest
France
[email protected] [phone]SPAIN
[e-mail] [phone]
www.zyxel.es ZyXEL Communications
Alejandro Villegas 33
1º, 28043 Madrid
Spain
[email protected] [phone] www.zyxel.dkDENMARK
[e-mail] [phone]
ZyXEL Communications A/S
Columbusvej 5
2860 Soeborg
Denmark
[email protected] [phone] www.zyxel.noNORWAY
[e-mail] [phone]
ZyXEL Communications A/S
Nils Hansens vei 13
0667 Oslo
Norway
1“+” is the (prefix) number you enter to make an international telephone call.

Prestige 660W/HW Series User’s Guide
viii Customer Support
SUPPORT E-MAIL TELEPHONE1WEB SITEMETHOD
LOCATION SALES E-MAIL FAX1FTP SITE
REGULAR MAIL
[email protected] [phone] www.zyxel.seSWEDEN
[e-mail] [phone]
ZyXEL Communications A/S
Sjöporten 4, 41764 Göteborg
Sweden
[email protected] [phone] www.zyxel.fiFINLAND
[e-mail] [phone]
ZyXEL Communications Oy
Malminkaari 10
00700 Helsinki
Finland

Prestige 660W/HW Series User’s Guide
Table of Contents ix
Table of Contents
Copyright..........................................................................................................................................................i
Federal Communications Commission (FCC) Interference Statement.....................................................iii
ZyXEL Limited Warranty..............................................................................................................................v
Customer Support.........................................................................................................................................vii
List of Figures..............................................................................................................................................xvii
List of Tables................................................................................................................................................ xxv
List of Charts..............................................................................................................................................xxxi
Preface.......................................................................................................................................................xxxiii
Introduction to DSL................................................................................................................................xxxvii
Getting Started ................................................................................................................................................ I
Chapter 1 Getting To Know Your Prestige.................................................................................................1-1
1.1 Introducing the Prestige .............................................................................................................1-1
1.2 Features of the Prestige ..............................................................................................................1-2
1.3 Applications for the Prestige ......................................................................................................1-8
Chapter 2 Introducing the Web Configurator...........................................................................................2-1
2.1 Web Configurator Overview......................................................................................................2-1
2.2 Accessing the Prestige Web Configurator..................................................................................2-1
2.3 Resetting the Prestige.................................................................................................................2-2
2.4 Navigating the Prestige Web Configurator ................................................................................2-1
2.5 Wizard Setup..............................................................................................................................2-3
Password, LAN, Wireless LAN and WAN ...................................................................................................II
Chapter 4 Password Setup ..........................................................................................................................4-1
4.1 Password Overview....................................................................................................................4-1
4.2 Configuring Password................................................................................................................4-1
Chapter 5 LAN Setup ..................................................................................................................................5-1
5.1 LAN Overview...........................................................................................................................5-1
5.2 DNS Server Address ..................................................................................................................5-1
5.3 DNS Server Address Assignment ..............................................................................................5-2
5.4 LAN TCP/IP ..............................................................................................................................5-2
5.5 RIP Setup ...................................................................................................................................5-4
5.6 DHCP Setup...............................................................................................................................5-5
5.7 Any IP ........................................................................................................................................5-5
5.8 Configuring LAN .......................................................................................................................5-7
Chapter 6 Wireless LAN Setup...................................................................................................................6-1
6.1 Wireless LAN Overview............................................................................................................6-1
6.2 Levels of Security ......................................................................................................................6-3
6.3 Data Encryption with WEP........................................................................................................6-4
6.4 Configuring Wireless LAN ........................................................................................................6-4

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6.5 Configuring MAC Filter ............................................................................................................6-7
6.6 Network Authentication.............................................................................................................6-9
6.7 Introduction to WPA................................................................................................................6-11
6.8 WPA-PSK Application Example .............................................................................................6-12
6.9 WPA with RADIUS Application Example..............................................................................6-13
6.10 Security Parameters Summary.................................................................................................6-14
6.11 Wireless Client WPA Supplicants ...........................................................................................6-15
6.12 Configuring 802.1x and WPA .................................................................................................6-15
6.13 Configuring Local User Authentication...................................................................................6-22
6.14 Configuring RADIUS ..............................................................................................................6-24
Chapter 7 WAN Setup .................................................................................................................................7-1
7.1 WAN Overview .........................................................................................................................7-1
7.2 Encapsulation.............................................................................................................................7-1
7.3 Multiplexing...............................................................................................................................7-2
7.4 VPI and VCI ..............................................................................................................................7-3
7.5 Metric.........................................................................................................................................7-3
7.6 Nailed-Up Connection (PPP).....................................................................................................7-3
7.7 Traffic Shaping ..........................................................................................................................7-4
7.8 Zero Configuration Internet Access...........................................................................................7-5
7.9 Configuring WAN Setup ...........................................................................................................7-5
7.10 Traffic Redirect..........................................................................................................................7-9
7.11 Configuring WAN Backup ......................................................................................................7-10
7.12 Configuring Advanced WAN Backup .....................................................................................7-13
7.13 AT Command Strings ..............................................................................................................7-17
7.14 DTR Signal ..............................................................................................................................7-18
7.15 Response Strings......................................................................................................................7-18
7.16 Configuring Advanced Modem Setup .....................................................................................7-18
NAT, Dynamic DNS and Time and Date.....................................................................................................III
Chapter 8 Network Address Translation (NAT) Screens..........................................................................8-1
8.1 NAT Overview ..........................................................................................................................8-1
8.2 SUA (Single User Account) Versus NAT .................................................................................8-4
8.3 SUA Server ................................................................................................................................8-5
8.4 Selecting the NAT Mode ...........................................................................................................8-6
8.5 Configuring SUA Server............................................................................................................8-7
8.6 Configuring Address Mapping...................................................................................................8-9
8.7 Editing an Address Mapping Rule ...........................................................................................8-11
Chapter 9 Dynamic DNS Setup ..................................................................................................................9-1
9.1 Dynamic DNS............................................................................................................................9-1
9.2 Configuring Dynamic DNS .......................................................................................................9-1
Chapter 10 Time and Date ........................................................................................................................10-1
10.1 Configuring Time and Date .....................................................................................................10-1

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Table of Contents xi
Firewall and Content Filter......................................................................................................................... IV
Chapter 11 Firewalls ..................................................................................................................................11-1
11.1 Firewall Overview....................................................................................................................11-1
11.2 Types of Firewalls....................................................................................................................11-1
11.3 Introduction to ZyXEL’s Firewall............................................................................................11-2
11.4 Denial of Service......................................................................................................................11-3
11.5 Stateful Inspection....................................................................................................................11-7
11.6 Guidelines for Enhancing Security with Your Firewall .........................................................11-11
11.7 Packet Filtering Vs Firewall...................................................................................................11-12
Chapter 12 Firewall Configuration ..........................................................................................................12-1
12.1 Remote Management and the Firewall.....................................................................................12-1
12.2 Enabling the Firewall ...............................................................................................................12-1
12.3 Attack Alert..............................................................................................................................12-2
Chapter 13 Creating Custom Rules..........................................................................................................13-1
13.1 Rules Overview........................................................................................................................13-1
13.2 Rule Logic Overview ...............................................................................................................13-1
13.3 Connection Direction ...............................................................................................................13-3
13.4 Rule Summary..........................................................................................................................13-4
13.5 Predefined Services..................................................................................................................13-6
13.6 Creating/Editing Firewall Rules...............................................................................................13-9
13.7 Timeout ..................................................................................................................................13-12
Chapter 14 Customized Services ..............................................................................................................14-1
14.1 Introduction to Customized Services .......................................................................................14-1
14.2 Creating/Editing A Customized Service ..................................................................................14-2
14.3 Example Custom Service Firewall Rule...................................................................................14-3
Chapter 15 Content Filtering....................................................................................................................15-1
15.1 Content Filtering Overview......................................................................................................15-1
15.2 Configuring Keyword Blocking...............................................................................................15-1
15.3 Configuring the Schedule.........................................................................................................15-3
15.4 Configuring Trusted Computers...............................................................................................15-4
Remote Management, UPnP and Logs......................................................................................................... V
Chapter 16 Remote Management Configuration ....................................................................................16-1
16.1 Remote Management Overview...............................................................................................16-1
16.2 Telnet .......................................................................................................................................16-2
16.3 FTP...........................................................................................................................................16-2
16.4 Web ..........................................................................................................................................16-3
16.5 Configuring Remote Management ...........................................................................................16-3
Chapter 17 Universal Plug-and-Play (UPnP) ..........................................................................................17-1
17.1 Introducing Universal Plug and Play........................................................................................17-1
17.2 UPnP and ZyXEL ....................................................................................................................17-2
17.3 Installing UPnP in Windows Example.....................................................................................17-3

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xii Table of Contents
17.4 Using UPnP in Windows XP Example .................................................................................... 17-5
Chapter 18 Logs Screens...........................................................................................................................18-1
18.1 Logs Overview.........................................................................................................................18-1
18.2 Configuring Log Settings.........................................................................................................18-1
18.3 Displaying the Logs .................................................................................................................18-4
18.4 SMTP Error Messages .............................................................................................................18-5
Media Bandwidth Management ..................................................................................................................VI
Chapter 19 Media Bandwidth Management ...........................................................................................19-1
19.1 Bandwidth Management Overview .........................................................................................19-1
19.2 Bandwidth Classes and Filters .................................................................................................19-1
19.3 Proportional Bandwidth Allocation .........................................................................................19-1
19.4 Bandwidth Management Usage Examples...............................................................................19-2
19.5 Scheduler .................................................................................................................................19-3
19.6 Maximize Bandwidth Usage....................................................................................................19-3
19.7 Bandwidth Borrowing..............................................................................................................19-5
19.8 Configuring Summary .............................................................................................................19-7
19.9 Configuring Class Setup ..........................................................................................................19-8
19.10 Bandwidth Monitor................................................................................................................19-12
Maintenance ................................................................................................................................................ VII
Chapter 20 Maintenance ...........................................................................................................................20-1
20.1 Maintenance Overview ............................................................................................................20-1
20.2 System Status Screen ...............................................................................................................20-1
20.3 DHCP Table Screen.................................................................................................................20-6
20.4 Any IP Table Screen ................................................................................................................20-7
20.5 Wireless Screen........................................................................................................................20-8
20.6 Diagnostic Screens...................................................................................................................20-8
20.7 Firmware Screen ....................................................................................................................20-11
SMT General Configuration.....................................................................................................................VIII
Chapter 21 Introducing the SMT .............................................................................................................21-1
21.1 SMT Introduction ....................................................................................................................21-1
21.2 Navigating the SMT Interface..................................................................................................21-3
21.3 Changing the System Password ...............................................................................................21-6
Chapter 22 Menu 1 General Setup...........................................................................................................22-1
22.1 General Setup...........................................................................................................................22-1
22.2 Procedure To Configure Menu 1 .............................................................................................22-1
Chapter 23 Menu 2 WAN Backup Setup .................................................................................................23-1
23.1 Introduction to WAN Backup Setup ........................................................................................23-1
23.2 Configuring Dial Backup in Menu 2........................................................................................23-1
Chapter 24 Menu 3 LAN Setup ................................................................................................................24-1
24.1 LAN Setup ...............................................................................................................................24-1
24.2 Protocol Dependent Ethernet Setup .........................................................................................24-2

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Table of Contents xiii
24.3 TCP/IP Ethernet Setup and DHCP...........................................................................................24-2
Chapter 25 Wireless LAN Setup ...............................................................................................................25-1
25.1 Wireless LAN Overview..........................................................................................................25-1
25.2 Wireless LAN Setup ................................................................................................................25-1
Chapter 26 Internet Access .......................................................................................................................26-1
26.1 Internet Access Overview ........................................................................................................26-1
26.2 IP Policies ................................................................................................................................26-1
26.3 IP Alias.....................................................................................................................................26-1
26.4 IP Alias Setup...........................................................................................................................26-2
26.5 Route IP Setup..........................................................................................................................26-4
26.6 Internet Access Configuration..................................................................................................26-4
Chapter 27 Remote Node Configuration..................................................................................................27-1
27.1 Remote Node Setup Overview.................................................................................................27-1
27.2 Remote Node Setup..................................................................................................................27-1
27.3 Remote Node Network Layer Options.....................................................................................27-6
27.4 Remote Node Filter ..................................................................................................................27-8
27.5 Editing ATM Layer Options ....................................................................................................27-9
Chapter 28 Static Route Setup ..................................................................................................................28-1
28.1 IP Static Route Overview.........................................................................................................28-1
28.2 Configuration ...........................................................................................................................28-2
Chapter 29 Bridging Setup........................................................................................................................29-1
29.1 Bridging in General..................................................................................................................29-1
29.2 Bridge Ethernet Setup ..............................................................................................................29-1
Chapter 30 Network Address Translation (NAT)....................................................................................30-1
30.1 Using NAT...............................................................................................................................30-1
30.2 Applying NAT .........................................................................................................................30-1
30.3 NAT Setup ...............................................................................................................................30-3
30.4 Configuring a Server behind NAT ...........................................................................................30-9
30.5 General NAT Examples .........................................................................................................30-11
Chapter 31 Enabling the Firewall.............................................................................................................31-1
31.1 Remote Management and the Firewall.....................................................................................31-1
31.2 Access Methods .......................................................................................................................31-1
31.3 Enabling the Firewall ...............................................................................................................31-1
SMT Advanced Management...................................................................................................................... IX
Chapter 32 Filter Configuration...............................................................................................................32-1
32.1 About Filtering.........................................................................................................................32-1
32.2 Configuring a Filter Set for the Prestige ..................................................................................32-4
32.3 Filter Rules Summary Menus...................................................................................................32-6
32.4 Configuring a Filter Rule .........................................................................................................32-7
32.5 Filter Types and NAT ............................................................................................................32-14
32.6 Example Filter........................................................................................................................32-14

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xiv Table of Contents
32.7 Applying Filters and Factory Defaults...................................................................................32-17
Chapter 33 SNMP Configuration .............................................................................................................33-1
33.1 About SNMP............................................................................................................................33-1
33.2 Supported MIBs.......................................................................................................................33-2
33.3 SNMP Configuration ...............................................................................................................33-2
33.4 SNMP Traps ............................................................................................................................33-4
Chapter 34 System Security......................................................................................................................34-1
34.1 System Security .......................................................................................................................34-1
34.2 Creating User Accounts on the Prestige...................................................................................34-6
Chapter 35 System Information and Diagnosis.......................................................................................35-1
35.1 System Status...........................................................................................................................35-1
35.2 System Information..................................................................................................................35-3
35.3 Log and Trace ..........................................................................................................................35-5
35.4 Diagnostic ................................................................................................................................35-8
Chapter 36 Firmware and Configuration File Maintenance .................................................................36-1
36.1 Filename Conventions .............................................................................................................36-1
36.2 Backup Configuration..............................................................................................................36-2
36.3 Restore Configuration..............................................................................................................36-6
36.4 Uploading Firmware and Configuration Files .........................................................................36-8
Chapter 37 System Maintenance ..............................................................................................................37-1
37.1 Command Interpreter Mode.....................................................................................................37-1
37.2 Call Control Support................................................................................................................37-2
37.3 Time and Date Setting .............................................................................................................37-4
Chapter 38 Remote Management.............................................................................................................38-1
38.1 Remote Management Overview...............................................................................................38-1
38.2 Remote Management ...............................................................................................................38-1
38.3 Remote Management and NAT ...............................................................................................38-3
38.4 System Timeout .......................................................................................................................38-3
Chapter 39 IP Policy Routing ...................................................................................................................39-1
39.1 IP Policy Routing Overview ....................................................................................................39-1
39.2 Benefits of IP Policy Routing ..................................................................................................39-1
39.3 Routing Policy .........................................................................................................................39-1
39.4 IP Routing Policy Setup...........................................................................................................39-2
39.5 Applying an IP Policy..............................................................................................................39-5
39.6 IP Policy Routing Example......................................................................................................39-6
Chapter 40 Call Scheduling ......................................................................................................................40-1
40.1 Introduction..............................................................................................................................40-1
Chapter 41 Internal SPTGEN ..................................................................................................................41-1
41.1 Internal SPTGEN Overview ....................................................................................................41-1
41.2 The Configuration Text File Format........................................................................................41-1
41.3 Internal SPTGEN FTP Download Example ............................................................................41-3

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41.4 Internal SPTGEN FTP Upload Example..................................................................................41-4
Appendices and Index.................................................................................................................................... X
Appendix A Troubleshooting......................................................................................................................A-1
Appendix B IP Subnetting.......................................................................................................................... B-1
Appendix C Wireless LAN and IEEE 802.11............................................................................................C-1
Appendix D PPPoE .....................................................................................................................................D-1
Appendix E Virtual Circuit Topology........................................................................................................E-1
Appendix F Example Internal SPTGEN Screens..................................................................................... F-1
Appendix G Setting up Your Computer’s IP Address............................................................................. G-1
Appendix H Splitters and Microfilters..................................................................................................... H-1
Appendix I Log Descriptions....................................................................................................................... I-1
Appendix J Index ............................................................................................................................................ I

Prestige 660W/HW Series User’s Guide
List of Figures xvii
List of Figures
Figure 1-1 Prestige Internet Access Application ............................................................................................ 1-8
Figure 1-2 Firewall Application ..................................................................................................................... 1-9
Figure 1-3 Prestige LAN-to-LAN Application .............................................................................................. 1-9
Figure 2-1 Password Screen........................................................................................................................... 2-1
Figure 2-2 Web Configurator SITE MAP Screen........................................................................................... 2-1
Figure 4-1 Password....................................................................................................................................... 4-1
Figure 5-1 LAN and WAN IP Addresses ....................................................................................................... 5-1
Figure 5-2 LAN.............................................................................................................................................. 5-7
Figure 6-1 RTS/CTS ...................................................................................................................................... 6-2
Figure 6-2 Prestige Wireless Security Levels ................................................................................................ 6-3
Figure 6-3 Wireless ........................................................................................................................................ 6-5
Figure 6-4 MAC Address Filter ..................................................................................................................... 6-8
Figure 6-5 EAP Authentication .....................................................................................................................6-11
Figure 6-6 WPA - PSK Authentication......................................................................................................... 6-13
Figure 6-7 WPA with RADIUS Application Example ................................................................................. 6-14
Figure 6-8 Wireless LAN: 802.1x/WPA ...................................................................................................... 6-16
Figure 6-9 Wireless LAN: 802.1x/WPA for 802.1x Protocol....................................................................... 6-17
Figure 6-10 Wireless LAN: 802.1x/WPA for WPA Protocol ....................................................................... 6-19
Figure 6-11 Wireless LAN: 802.1x/WPA for WPA-PSK Protocol............................................................... 6-21
Figure 6-12 Local User Database................................................................................................................. 6-23
Figure 6-13 RADIUS................................................................................................................................... 6-24
Figure 7-1 Example of Traffic Shaping.......................................................................................................... 7-4
Figure 7-2 WAN Setup..................................................................................................................................... 7-6
Figure 7-3 Traffic Redirect Example ........................................................................................................... 7-10
Figure 7-4 Traffic Redirect LAN Setup ....................................................................................................... 7-10

Prestige 660W/HW Series User’s Guide
xviii List of Figures
Figure 7-5 WAN Backup ................................................................................................................................7-11
Figure 7-6 Advanced WAN Backup..............................................................................................................7-14
Figure 7-7 Advanced Modem Setup ...............................................................................................................7-19
Figure 8-1 How NAT Works...........................................................................................................................8-2
Figure 8-2 NAT Application With IP Alias .....................................................................................................8-3
Figure 8-3 Multiple Servers Behind NAT Example........................................................................................8-6
Figure 8-4 NAT Mode.....................................................................................................................................8-7
Figure 8-5 Edit SUA/NAT Server Set.............................................................................................................8-8
Figure 8-6 Address Mapping Rules ..............................................................................................................8-10
Figure 8-7 Address Mapping Rule Edit ........................................................................................................8-11
Figure 9-1 DDNS............................................................................................................................................9-2
Figure 10-1 Time and Date ...........................................................................................................................10-1
Figure 11-1 Prestige Firewall Application ....................................................................................................11-3
Figure 11-2 Three-Way Handshake ..............................................................................................................11-5
Figure 11-3 SYN Flood ................................................................................................................................11-5
Figure 11-4 Smurf Attack .............................................................................................................................11-6
Figure 11-5 Stateful Inspection.....................................................................................................................11-8
Figure 12-1 Enabling the Firewall ................................................................................................................12-1
Figure 12-2 Alert...........................................................................................................................................12-4
Figure 13-1 LAN to WAN Traffic.................................................................................................................13-3
Figure 13-2 WAN to LAN Traffic.................................................................................................................13-4
Figure 13-3 Firewall Rules Summary: First Screen......................................................................................13-5
Figure 13-4 Creating/Editing A Firewall Rule............................................................................................13-10
Figure 13-5 Adding/Editing Source and Destination Addresses.................................................................13-12
Figure 13-6 Timeout ...................................................................................................................................13-13
Figure 14-1 Customized Services .................................................................................................................14-1
Figure 14-2 Creating/Editing A Customized Service....................................................................................14-2