user manual
N600 Wireless Dual Band
Gigabit VDSL2 Modem
Router DGND3800B
User M anual
350 East Plumeria Drive
San Jose, CA 95134
USA
March 2012
202-10941-01
v1.0
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
© 2011 NETGEAR, Inc. All rights reserved
No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated
into any language in any form or by any means without the written permission of NETGEAR, Inc.
Technical Support
Thank you for choosing NETGEAR. To register your product, get the latest product updates, get support online, or
for more information about the topics covered in this manual, visit the Support website at
http://support.netgear.com.
Phone (US & Canada only): 1-888-NETGEAR
Phone (Other Countries): Check the list of phone numbers at
http://support.netgear.com/app/answers/detail/a_id/984.
Trademarks
NETGEAR, the NETGEAR logo, and Connect with Innovation are trademarks and/or registered trademarks of
NETGEAR, Inc. and/or its subsidiaries in the United States and/or other countries. Information is subject to change
without notice. Other brand and product names are registered trademarks or trademarks of their respective
holders. © 2011 NETGEAR, Inc. All rights reserved.
Statement of Conditions
To improve internal design, operational function, and/or reliability, NETGEAR reserves the right to make changes
to the products described in this document without notice. NETGEAR does not assume any liability that may occur
due to the use, or application of, the product(s) or circuit layout(s) described herein.
2
Contents
Chapter 1
Hardware Setup
Unpack Your New Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Hardware Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Label. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Position Your Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
ADSL Microfilters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
One-Line ADSL Microfilter (Not Included) . . . . . . . . . . . . . . . . . . . . . . . 13
Two-Line ADSL Microfilter (Included) . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Cable Your Modem Router. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Verify the Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Chapter 2
Router Internet Setup
Router Setup Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Use Standard TCP/IP Properties for DHCP . . . . . . . . . . . . . . . . . . . . . . 17
Replace an Existing Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Adapters and Security Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Gather ISP Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Log In to the N600 Modem Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Upgrade Router Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Router Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Setup Wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Manual Setup (Basic Settings) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Basic Setting Screen Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
ADSL Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Unsuccessful Internet Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Change Password and Login Time-Out . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Log Out Manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Types of Logins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Chapter 3
Wireless Settings
Wireless Adapter Compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Preset Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Wireless Security Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Turn Off Wireless Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Disable SSID Broadcast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Restrict Access by MAC Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Wireless Security Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Add Clients (Devices) to Your Network . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Manual Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Wi-Fi Protected Setup (WPS) Method . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Wireless Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Chapter 4 Content Filtering
Live Parental Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Keyword Blocking of HTTP Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Delete a Keyword or Domain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Specify a Trusted Computer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Firewall Rules to Control Network Access . . . . . . . . . . . . . . . . . . . . . . . . . 42
Remote Computer Access Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Port Triggering to Open Incoming Ports . . . . . . . . . . . . . . . . . . . . . . . . . 43
Port Forwarding to Permit External Host Communications . . . . . . . . . . 45
How Port Forwarding Differs from Port Triggering . . . . . . . . . . . . . . . . . 46
Configure Port Forwarding to Local Servers . . . . . . . . . . . . . . . . . . . . . 46
Configure Port Triggering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Set the Time Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Schedule Firewall Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Email Logs and Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Log the Network Activity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Chapter 5 Network Maintenance
Upgrade the Router Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Automatic Firmware Checking Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Automatic Firmware Checking On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Manually Check for Firmware Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Manage Configuration File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Back Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Restore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
View Router Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Show Statistics Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Connection Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
View Attached Devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Run Diagnostic Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Chapter 6 USB Storage
USB Drive Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
ReadySHARE Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
File-Sharing Scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
USB Storage Basic Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Edit a Network Folder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
USB Storage Advanced Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Create a Network Folder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Safely Remove USB Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Media Server Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Approved USB Devices (Advanced USB Settings) . . . . . . . . . . . . . . . . . .75
Connect to the USB Drive from a Remote Computer. . . . . . . . . . . . . . . . .76
Connect to the USB Drive with Microsoft Network Settings . . . . . . . . . . . .76
Enabling File and Printer Sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Chapter 7
Advanced Settings
WAN Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
WAN Preference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Disable Port Scan and DOS Protection . . . . . . . . . . . . . . . . . . . . . . . . .79
Default DMZ Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Respond to Ping on Internet Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
MTU Size (in bytes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80
NAT Filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Disable SIP ALG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Dynamic DNS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
LAN Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Set Up Quality of Service (QoS). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84
Configure QoS for Internet Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Advanced Wireless Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
Wireless Advanced Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86
WPS Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Wireless Repeating Networks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89
Set Up a Point-to-Point Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Set Up a Multi-Point Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Repeater with Wireless Client Association . . . . . . . . . . . . . . . . . . . . . . .93
Remote Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .95
Static Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Static Route Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
Static Routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Universal Plug and Play . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Traffic Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Chapter 8
Virtual Private Networking
Overview of VPN Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Client-to-Gateway VPN Tunnels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Gateway-to-Gateway VPN Tunnels . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Plan a VPN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
VPN Tunnel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Set Up a Client-to-Gateway VPN Configuration . . . . . . . . . . . . . . . . . . . .105
Step 1: Configure the Client-to-Gateway VPN Tunnel . . . . . . . . . . . . .105
Step 2: Configure the NETGEAR ProSafe VPN Client. . . . . . . . . . . . .108
Set Up a Gateway-to-Gateway VPN Configuration . . . . . . . . . . . . . . . . .116
VPN Tunnel Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Activate a VPN Tunnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
Verify the Status of a VPN Tunnel . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Set Up VPN Tunnels in Special Circumstances. . . . . . . . . . . . . . . . . . . . 125
Use Auto Policy to Configure VPN Tunnels . . . . . . . . . . . . . . . . . . . . . 126
Use Manual Policy to Configure VPN Tunnels . . . . . . . . . . . . . . . . . . . 133
Chapter 9 Troubleshooting
Troubleshooting with the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Power LED Is Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Power LED Is Red . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
LAN LED Is Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Wireless LEDs Are Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
DSL or Internet LED Is Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
No ISP Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
ADSL Link. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Internet LED Is Red . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Cannot Obtain an Internet IP Address . . . . . . . . . . . . . . . . . . . . . . . . . 140
Debug PPPoE or PPPoA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Cannot Load an Internet Web Page . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
TCP/IP Network Not Responding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Test the LAN Path to Your Modem Router. . . . . . . . . . . . . . . . . . . . . . 142
Test the Path from Your Computer to a Remote Device . . . . . . . . . . . 143
Cannot Log In. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Changes Not Saved . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Firmware Needs to Be Reloaded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Incorrect Date or Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Appendix A Supplemental Information
Factory Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Appendix B
VPN Configuration
Configuration Profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Step-by-Step Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Modem Router with FQDN to Gateway B . . . . . . . . . . . . . . . . . . . . . . . . 153
Configuration Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Step-by-Step Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Configuration Summary (Telecommuter Example) . . . . . . . . . . . . . . . . . 157
Set Up Client-to-Gateway VPN (Telecommuter Example) . . . . . . . . . . . . 158
Step 1: Configure Gateway A (VPN Router at Main Office) . . . . . . . . . 159
Step 2: Configure Gateway B (VPN Router at Regional Office). . . . . . 160
Monitoring the VPN Tunnel (Telecommuter Example) . . . . . . . . . . . . . . . 166
View the VPN Router’s VPN Status and Log Information . . . . . . . . . . 167
Appendix C Notification of Compliance
6
1.
Hardware Setup
Get ting to know your mo dem router
1
The NETGEAR N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B offers
dual-band technology and ensures top speeds and the greatest range for demanding
applications, such as streaming HD video and multiplayer gaming. Complete with a built-in
ADSL modem, it is compatible with all major ADSL Internet service providers. The gigabit port on
the WAN side has an option to connect to a fiber/cable modem.
NETGEAR green features:
•
Power On/Off button
•
80% recycled packaging
•
CEC (California Efficiency)
•
RoHS
•
WEEE
If you have not already set up your new router using the installation guide that comes in the box,
this chapter walks you through the hardware setup. Chapter 2, Router Internet Setup, explains
how to set up your Internet connection.
This chapter contains the following sections:
•
Unpack Your New Router
•
Hardware Features
•
Position Your Modem Router
•
ADSL Microfilters
•
Cable Your Modem Router
•
Verify the Cabling
For more information about the topics covered in this manual, visit the support website at
http://support.netgear.com.
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Unpack Your New Router
Your box should contain the following items:
•
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
•
AC power adapter (plug varies by region)
•
Category 5 (Cat 5) Ethernet cable
•
Telephone cable with RJ-11 connector
•
Installation guide with cabling and router setup instructions
If any of the parts are incorrect, missing, or damaged, contact your NETGEAR dealer. Keep
the carton, including the original packing materials, in case you need to return the product for
repair. See Position Your Modem Router on page 12 for information about where to place and
how to position your router.
AC Power adapter
Modem Router
Ethernet cable
Telephone cable
Figure 1. Box contents
Hardware Setup
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Hardware Features
Before you cable your router, take a moment to become familiar with the label and the front
and back panels. Pay particular attention to the LEDs on the front panel.
Front Panel
The modem router front panel has the 10 status LEDs, icons, and ports shown in the figure.
Note that the Wireless and WPS icons are buttons.
WPS On/Off button
Wireless On/Off button
USB port
Internet
DSL
5 GHZ wireless
2.4 GHz wireless
USB
LAN ports
Power
Figure 2. Front panel
Front Panel Buttons and USB Port
WPS button. You can use this button to add a wireless computer or device to your
network using Wi-Fi Protected Setup. The wireless computer or device has to
support WPS. see Wi-Fi Protected Setup (WPS) Method on page 33..
Wireless On/Off button. This button turns the wireless radio of the modem router
off and on. See Turn Off Wireless Connectivity on page 31
USB port. You can use this port to connect USB storage devices like flash drives
or hard drives.
Hardware Setup
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Front Panel LEDs
The following table describe the LEDs on the front panel from top to bottom.
Table 1. LED Descriptions
LED
Internet
DSL
5 GHz Wireless
Description
• Solid green. You have an Internet connection. If this connection is dropped due to
an idle time-out but the connection is still present, the light stays green. If the
Internet connection is dropped for any other reason, the light turns off.
• Solid red.The Internet (IP) connection failed. See No ISP Connection on page 139
for troubleshooting information.
• Blinking green. Data is being transmitted over the Internet connection.
• Off. No Internet connection is detected or the device is in bridge mode (an
external device handles the ISP connection)
• Solid green. You have an ADSL connection. In technical terms, the ADSL port is
synchronized with an ISP’s network-access device
• Blinking green. Indicates that the modem router is negotiating the best possible
speed on the ADSL line.
• Off. The unit is off or there is no IP connection.
• Solid blue. There is wireless connectivity.
• Blinking blue. Data is being sent or received over the 5 GHz wireless link.
• Off. There is no wireless connectivity. You can still plug an Ethernet cable into one
of the LAN ports to get wired connectivity.
• Solid green. There is wireless connectivity.
• Blinking green. Data is being sent or received over the 2.4 GHz wireless link.
• Off. There is no wireless connectivity. You can still plug an Ethernet cable into one
2.54 GHz Wireless of the LAN ports to get wired connectivity.
USB
• Solid green. A USB port has detected a USB device.
• Blinking green. Data is being transmitted or received.
• Off. No link is detected on these ports.
LAN (Ethernet)
• Solid green. A LAN port has detected an Ethernet link with a device.
• Blinking green. Data is being transmitted or received.
• Off. No link is detected on these ports.
Power
• Solid green. Power is supplied to the modem router.
• Solid red. POST (power-on self-test) failure or a device malfunction has occurred
• Off. Power is not supplied to the modem router.
• Restore Factory Settings. The Power LED blinks momentarily when the Restore
Factory Settings button on the bottom of the unit is pressed for 6 seconds. The
Power LED blinks red three times when the Restore Factory Settings button is
released and then turns green as the modem router resets to its factory defaults.
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Back Panel
The back panel has the Power On/Off button and port connections shown in the figure:
1. ADSL line
2. Gigabit port for connecting to external cable/fiber modem
3. Gigabit Ethernet ports
4. USB port
5. Power On/Off button
6. AC power adapter input
Figure 3. Back panel port connections
Viewed from left to right, the rear panel contains the following elements:
1. RJ-11 asynchronous DSL (ADSL) port for connecting the modem router to an ADSL line
Note: An ADSL port is capable of sending data over an ADSL line at one
speed and receiving it at another speed.
2. Ethernet WAN port for connecting the modem router to a fiber/cable modem
Note: You can use either the ADSL or Gigabit Ethernet port for WAN
connectivity.
3. Four Ethernet RJ-45 LAN ports for cabling the modem router to the local computers
4. USB port for connecting USB storage devices like flash drives or hard drives
5. Power On/Off button
6. AC power adapter input
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Label
The label on the bottom of the modem router shows the router’s Restore Factory Settings
button, WPS security PIN, MAC address, and serial number.
WPS Security PIN
MAC address
Serial number
Restore Factory Settings
Figure 4. Label on modem router bottom
See Factory Settings on page 147 for information about the Restore Factory Settings button
and the factory setting values.
Position Your Modem Router
You should operate the modem router only in a vertical position, resting on its stand.
The modem router lets you access your wireless network within its range. The range can vary
depending on the location of your modem router. For example, the thickness and number of
walls the wireless signal passes through can limit the range. For best results, place your
modem router:
•
Near the center of the area where your computers and other devices operate, and
preferably within line of sight to your wireless devices.
•
So it is accessible to an AC power outlet and near Ethernet cables for wired computers.
•
In an elevated location such as a high shelf, keeping the number of walls and ceilings
between the modem router and your other devices to a minimum.
•
Away from electrical devices that are potential sources of interference, such as ceiling
fans, home security systems, microwave ovens, computers, or the base of a cordless
phone or 2.4 GHz cordless phone.
•
Away from any large metal surfaces, such as a solid metal door or aluminum studs. Large
expanses of other materials such as glass, insulated walls, fish tanks, mirrors, brick, and
concrete can also affect your wireless signal.
If you use multiple access points, set up adjacent access points with different radio frequency
channels to reduce interference. NETGEAR recommends five channels of spacing for
adjacent access points (for example, use Channels 1 and 6, or 6 and 11).
Hardware Setup
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ADSL Microfilters
If this is the first time you cable a modem router between an ADSL phone line and your
computer, you might not be familiar with ADSL microfilters. If you are, you can skip this
section and proceed to Cable Your Modem Router on page 14.
An ADSL microfilter is a small in-line device that filters ADSL interference out of standard
phone equipment that shares the same line with your ADSL service. Every telephone device
that connects to a telephone line that provides ADSL service needs an ADSL microfilter to
filter out the ADSL interference. Example devices are telephones, fax machines, answering
machines, and caller ID displays. Note that not every phone line in your home necessarily
carries ADSL service. That depends on the ADSL service setup in your home.
For many products, the ADSL microfilter is included in the box with the modem router. If you
purchased the modem router in a country where a microfilter is not included, you have to
acquire the ADSL microfilter separately.
One-Line ADSL Microfilter (Not Included)
Plug the ADSL microfilter into the wall outlet and plug your phone equipment into the jack
labeled Phone. The modem router plugs directly into a separate ADSL line. Plugging the
modem router into the phone jack blocks the Internet connection. If you do not have a
separate ADSL line for the router, the best thing to do is to use an ADSL microfilter with a
built-in splitter.
Plugs into the ADSL line
Figure 5. One-line ADSL microfilter
Second best when you do not have a separate ADSL line for the router is to get a separate
splitter. To use a one-line filter with a separate splitter, insert the splitter into the phone outlet,
connect the one-line filter to the splitter, and connect the phone to the filter.
Two-Line ADSL Microfilter (Included)
Use an ADSL microfilter with a built-in splitter when there is a single wall outlet that provides
connectivity for both the modem router and your telephone equipment. Plug the ADSL
microfilter into the wall outlet, plug your phone equipment into the jack labeled Phone, and
plug the modem router into the jack labeled ADSL.
Plugs into the ADSL line
Figure 6. Two-line ADSL microfilter with built-in splitter
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Summary
•
One-line ADSL microfilter (not included). Use with a phone or fax machine.
•
Splitter (not included). Use with a one-line ADSL microfilter to share an outlet with a
phone and the modem router.
•
Two-line ADSL microfilter with built-in splitter (included). Use to share an outlet with a
phone and the modem router.
Cable Your Modem Router
WARNING!
DO not stack equipment, or place equipment in tight spaces, or in
drawers. Be sure your equipment is surrounded by at least
2 inches of air space. The unit should not be wall mounted.
The installation guide that came in the box includes a cabling diagram similar to the following
figure:
Figure 7. Cabling diagram
CAUTION:
Incorrectly connecting a filter to your modem router blocks your ADSL
connection.
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Verify the Cabling
Verify that your router is cabled correctly by checking the modem router LEDs. Turn on the
modem router by pressing the Power On/Off button on the back.
•
The Power LED is green when the modem router is turned on.
•
The LAN port is green when a computer is cabled to the router by an Ethernet cable.
•
The Wireless LEDs are lit when the modem router is turned on.
•
The DSL LED is green when you have an ADSL connection.
•
The Internet LED is red when there is no Internet connection.
Turn on your computer. If software usually logs you in to your Internet connection, do not run
that software. Cancel it if it starts automatically.
Hardware Setup
15
2.
Router Internet Setup
2
Connecting to the net work
This chapter explains how to set up your Internet connection using one of two methods: Setup
Wizard or manual setup. If you have already set up your router using one of these methods, the
initial router setup is complete. Refer to this chapter if you want to become familiar with the
router menus, view or adjust the initial settings, or change the router password and login
time-out.
This chapter contains the following sections:
•
Router Setup Preparation
•
Log In to the N600 Modem Router
•
Upgrade Router Firmware
•
Router Interface
•
Setup Wizard
•
Manual Setup (Basic Settings)
•
ADSL Settings
•
Unsuccessful Internet Connection
•
Change Password and Login Time-Out
•
Log Out Manually
•
Types of Logins
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Router Setup Preparation
You can set up your modem router with the Setup Wizard as described in Setup Wizard on
page 21 or manually as described in Manual Setup (Basic Settings) on page 22. However,
before you start the setup process, you need to have your ISP information on hand and make
sure the computers, and other devices in the network have the settings described here.
Note: If you have a Macintosh or Linux system, you have to use the
manual setup method.
Use Standard TCP/IP Properties for DHCP
If you configured your computer to use a static IP address, you need to change the settings
back so that it uses Dynamic Host Configuration Protocol (DHCP). See Appendix A,
Supplemental Information for more information.
Replace an Existing Router
To replace an existing router, disconnect it completely from your network and set it aside
before starting the router setup.
Adapters and Security Settings
A wireless adapter is the wireless radio in your computer that lets the computer connect to a
wireless network. Most computers come with an adapter already installed, but if it is outdated
or slow, you can purchase a USB adapter to plug into a USB port.
Make sure the wireless adapter in each computer in your wireless network supports the same
security settings as the modem router.
Note: If you connect devices to your modem router using WPS as
described in Wi-Fi Protected Setup (WPS) Method on page 33,
those devices assume the security settings of the router.
Gather ISP Information
You need the following information to set up your modem router and to check that your
Internet configuration is correct. Your Internet service provider (ISP) should have provided
you with all of the information needed to connect to the Internet. If you cannot locate this
information, ask your ISP to provide it. When your Internet connection is working, you no
Router Internet Setup
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longer need to launch the ISP’s login program on your computer to access the Internet. When
you start an Internet application, your modem router automatically logs you in.
•
Active Internet service provided by an ADSL account
•
The ISP configuration information for your ADSL account
-
ISP login name and password
-
ISP Domain Name Server (DNS) addresses
-
Fixed or static IP address
-
Host and domain names
-
Depending on how your ISP set up your Internet account, you could need to know
one or more of these settings for a manual setup:
•
Virtual path identifier (VPI) and virtual channel identifier (VCI) parameters
•
Multiplexing method
•
Host and domain names
Log In to the N600 Modem Router
Log in to the modem router to view or change settings or to set up the modem router.

To log in:
1. Type http://192.168.0.1 in the address field of your browser and press Enter to display
the login window. You can also enter either of these addresses to access the modem
router: http://www.routerlogin.net or http://www.routerlogin.com.
2. When prompted, enter admin for the router user name and password for the router
password, both in lowercase letters, and click OK.
Note: The router user name and password are probably different from the
user name and password for logging in to your Internet connection.
See Types of Logins on page 28 for more information.
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The router screens display, where you can do things like changing settings or adding
other devices to your network. For a brief description of the available functionality, see
Router Interface on page 20. For information about adding devices to your network, see
Wi-Fi Protected Setup (WPS) Method on page 33.
If you do not see the login prompt:
1. Check the LEDs on the router front panel to make sure that the modem router is
plugged into an electrical outlet, its power is on, and the Ethernet cable between your
computer and the router is connected to a LAN port.
2. If you connected the Ethernet cable and quickly launched your browser and typed in the
router URL, your computer might need a minute or two to recognize the LAN connection.
Relaunch your browser and try again.
3. If you are having trouble accessing the router wirelessly, NETGEAR recommends that
during setup you use an Ethernet cable to connect your computer so that you can log in to
the modem router.
Note: If you cannot connect to the modem router, check the Internet
Protocol (TCP/IP) properties in the Network Connections section of
your computer Control Panel. They should be set to obtain both IP
and DNS server addresses automatically.
Upgrade Router Firmware
When you log in and if you are connected to the Internet, the Firmware Upgrade Assistant
screen displays so you can upgrade to the latest available firmware. For more information
about upgrading firmware, see Chapter 5, Network Maintenance.

To upgrade the firmware:
1. Click Yes to check for new firmware (recommended). The modem router checks the
NETGEAR database for new firmware.
2. If no new firmware is available, click No to exit. You can check for new firmware later.
3. If new firmware is available, click Yes to upgrade the router with the latest firmware. After the
upgrade, the router restarts.
CAUTION:
Do not try to go online, turn off the router, shut down the computer, or do
anything else to the router until the router finishes restarting.
You cannot upgrade firmware until you have established your Internet connection as
described in Setup Wizard on page 21.
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Router Interface
The router interface gives you access to the router’s current settings so you can view or
change them (if needed). The left column has the router menus, and the right column
provides online help. The middle column is the screen for the current menu option.
Language
Menus
(scroll
down to
view
more)
Help for
the current
screen
Screen selected
from the menu
Figure 8. Router interface
Setup Wizard
Specify the language and location, and automatically detect the Internet connection. See
Setup Wizard on page 21.
Add WPS Client
Add WPS-compatible wireless devices and other equipment to your wireless network. See
Add Clients (Devices) to Your Network on page 33.
Setup Menu
Set, upgrade, and check the ISP and wireless network settings of your router. See Manual
Setup (Basic Settings) on page 22 and ADSL Settings on page 25. See also Chapter 3,
Wireless Settings.
USB Storage Menu
Add removable storage to your network. See Chapter 6, USB Storage.
Content Filtering Menu
View and configure the router firewall settings to prevent objectionable content from reaching
your computers. See Chapter 4, Content Filtering.
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Maintenance Menu
Administer and maintain your router and network. See Chapter 5, Network Maintenance.
Advanced Menu
Set the router up for unique situations such as when remote access by IP or by domain name
from the Internet is needed. See Chapter 7, Advanced Settings. Using this menu requires a
solid understanding of networking concepts.
Advanced – VPN Menu
Set up secure encrypted communications. See Chapter 8, Virtual Private Networking. Using
this menu requires a solid understanding of networking concepts.
Web Support
Go to the NETGEAR support site to get information, help, and product documentation. These
links work once you have an Internet connection.
Setup Wizard
You have to log in to the modem router to set the country, language, and Internet connection.

To use the Setup Wizard:
1. Select Setup Wizard from the top of the router menus to display the following screen:
2. Select your country and language:
• Country. It is important to specify the location where the modem router operates so
that the Internet connection works correctly. The default is Germany.
•
Language. The default is English. You can select another language if you prefer.
3. Select either Yes or No, I want to configure the Router myself. If you select No, proceed
to Manual Setup (Basic Settings) on page 22.
4. If you selected Yes, click Next.
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You are prompted to change the administrator password:
5. Enter the current password, and then enter the new password and click Next.
With automatic Internet detection, the Setup Wizard searches your Internet connection
for servers and protocols to determine your ISP configuration.
Note: The Setup Wizard cannot detect a Point-to-Point Tunneling Protocol
(PPTP) connection. If your ISP uses PPTP, you have to set your
Internet connection through the screen described in Manual Setup
(Basic Settings) on page 22.
Manual Setup (Basic Settings)
The Basic Settings screen displays when you select No. I want to configure the Router myself
in the Setup Wizard and is also available from the router menus. It is where you view or
change ISP information. The fields that display vary depending on whether or not your
Internet connection requires a login.
Note: Check that the country and language are set as described Setup
Wizard on page 21 before proceeding with the manual setup.

To set up the basic settings manually:
1. Select Set Up > Basic Settings and select Yes or No depending on whether or not
your ISP requires a login.
• Yes. Select the encapsulation method and enter the login name. If you want to
change the login time-out, enter a new value in minutes.
•
No. Enter the account and domain names, as needed.
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The available fields change based on whether you selected Yes or No for a login.
ISP does not require login
ISP does require login
2. Enter the settings for the IP address and DNS server. The default ADSL settings usually
work fine. If you have problems with your connection, check the ADSL settings and see
ADSL Settings on page 25 for more information.
3. If no login is required, you can specify the MAC Address setting.
4. Click Apply to save your settings.
5. Click Test to test your Internet connection. If the NETGEAR website does not appear within
1 minute, and see Troubleshooting on page 136.
Basic Setting Screen Fields
The following descriptions explain all of the possible fields in the Basic Settings screen. Note
that which fields appear in this screen depends on whether or not an ISP login is required.
Does Your ISP Require a Login? Answer either yes or no.
•
When no login is required, these fields display:
Account Name (If required). Enter the account name provided by your ISP. This might
also be called the host name.
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Domain Name (If required). Enter the domain name provided by your ISP.
•
When your ISP requires a login, these fields display:
Encapsulation. Encapsulation is a method for enclosing multiple protocols. PPP stands
for Point-to-Point Protocol. The choices are PPPoE (PPP over Ethernet) or PPPoA (PPP
over ATM).
Login. The login name provided by your ISP. This is often an email address.
Password. The password that you use to log in to your ISP.
Connection Mode. Specify whether your Internet connection is always on, or is off by
default unless you are using it.
Idle Timeout (In minutes). If you want to change the login timeout, enter a new value in
minutes. This determines how long the modem router keeps the Internet connection
active after there is no Internet activity from the LAN. Entering a value of 0 (zero) means
never log out.
Note: The German version of this product includes an Automatic Internet
connection reset setting. This can be used to set the specific time
that the modem router automatically disconnects from the Internet.
Internet IP Address.
•
When a login is required, these fields display:
Get Dynamically from ISP. Your ISP uses DHCP to assign your IP address. Your ISP
automatically assigns these addresses.
Use Static IP Address. Enter the IP address, IP subnet mask, and the gateway IP
address that your ISP assigned. The gateway is the ISP’s modem router to which your
modem router will connect.
•
When a login is not required, this field displays:
Use IP Over ATM (IPoA). Your ISP uses classical IP addresses (RFC 1577). Enter the IP
address, IP subnet mask, and gateway IP addresses that your ISP assigned.
Domain Name Server (DNS) Address. The DNS server is used to look up site addresses
based on their names.
•
Get Automatically from ISP. Your ISP uses DHCP to assign your DNS servers. Your ISP
automatically assigns this address.
•
Use These DNS Servers. If you know that your ISP does not automatically transmit DNS
addresses to the modem router during login, select this option, and enter the IP address
of your ISP’s primary DNS server. If a secondary DNS server address is available, enter it
also.
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NAT (Network Address Translation). NAT automatically assigns private IP addresses
(10.1.1.x) to LAN-connected devices.
•
Enable. Usually NAT is enabled.
•
Disable. This disables NAT, but leaves the firewall active. Disable NAT only if you are
sure you do not need it. When NAT is disabled, only standard routing is performed by this
modem. Classical routing lets you directly manage the IP addresses that the modem
router uses. Classical routing should be selected only by experienced users.1
•
Disable firewall. This disables the firewall in addition to disabling NAT. With the firewall
disabled, the protections usually provided to your network are disabled.
When no login is required, this field displays:
Router MAC Address. The Ethernet MAC address used by the modem router on the
Internet port. Some ISPs register the MAC address of the network interface card in your
computer when your account is first opened. They then accept traffic only from the MAC
address of that computer. This feature allows your modem router to use your computer’s
MAC address (this is also called cloning).
•
Use Default Address. Use the default MAC address.
•
Use Computer MAC Address. The modem router captures and use the MAC address of
the computer that you are now using. You have to be using the one computer that is
allowed by the ISP.
•
Use This MAC Address. Enter the MAC address that you want to use..
ADSL Settings
The ADSL settings of your modem router work fine for most ISPs. However, some ISPs use a
specific multiplexing method and virtual circuit number for the virtual path identifier (VPI) and
virtual channel identifier (VCI).
Note: You need to use the Setup Wizard to select the correct country for
the default ADSL settings to work.
1. Disabling NAT reboots the modem router and resets its configuration settings to the factory defaults. Disable NAT
only if you plan to set up the modem router in a setting where you will be manually administering the IP address space
on the LAN side of the modem.
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
To enter a multiplexing method or VPI/VCI number (if provided by the ISP):
1. Select Setup > ADSL Settings to display the following screen:
2. In the Internet Service Provider drop-down list, select your ISP.
3. Specify the transfer mode.
The transfer mode can be PTM (Packet Transfer Mode) or ATM (Asynchronous Transfer
Mode). The VDSL2 interface supports PTM. PTM transports packets (IP, PPP, Ethernet,
MPLS, and so on) over DSL links as an alternative to using ATM. PTM is based on the
Ethernet in the First Mile (EFM) IEEE802.3ah standard.
4. Select the DSL mode. The available settings depend on the selection in the Transfer Mode
field.
• If the Transfer Mode is ATM, the DSL mode can be Auto, ADSL, ADSL2, or ADSL2+.
•
If the transfer mode is PTM, the DSL mode is VDSL (Very-high-bit-rate digital
subscriber line).
5. In the Multiplexing Method drop-down list, select LLC-based or VC-based.
6. For the VPI, type a number between 0 and 255. The default is 8 for the U.S. version, 0 for
the worldwide version, and 1 for the German version.
7. For the VCI, type a number between 32 and 65535. The default is 35 for the U.S. version,
38 for the worldwide version, and 32 for the German version.
8. Click Apply.
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Unsuccessful Internet Connection
1. Review your settings to be sure you have selected the correct options and typed
everything correctly.
2. Contact your ISP to verify that you have the correct configuration information.
3. Read Chapter 9, Troubleshooting. If problems persist, register your product and contact
NETGEAR technical support.
Note: If you cannot connect to the modem router, check the Internet
Protocol (TCP/IP) properties in the Network Connections section of
your Windows Control Panel. They should be set to obtain both IP
and DNS server addresses automatically.
Change Password and Login Time-Out
For security reasons, the modem router has its own user name and password that default to
admin and password. You can and should change this password to a secure password that
is easy to remember. The ideal password contains no dictionary words from any language
and is a mixture of uppercase and lowercase letters, numbers, and symbols. It can be up to
30 characters.
Note: The router user name and password are not the same as the user
name and password for logging in to your Internet connection. See
Types of Logins on page 28 for more information about login types.

To change your password or login time-out:
1. Select Maintenance > Set Password to display the following screen:
2. Enter the old password.
3. Enter the new password twice.
4. Change the login time-out to a value between 1 and 99 minutes if the default value of 5
minutes does not meet your needs.
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The administrator’s login to the modem router configuration times out after a period of
inactivity to prevent someone else from accessing the router interface when you step
away.
5. Click Apply to save your changes.
After changing the password, you are required to log in again to continue the
configuration. If you have backed up the modem router settings previously, you should do
a new backup so that the saved settings file includes the new password. See Back Up on
page 60 for information about backing up your network configuration.
Log Out Manually
The router interface provides a Logout command at the bottom of the router menus. Log out
when you expect to be away from your computer for a relatively long period of time.
Types of Logins
There are three separate types of logins that have different purposes. It is important that you
understand the difference so that you know which login to use when.
•
Router login logs you in to the router interface. See Log In to the N600 Modem Router
on page 18 for details about this login.
•
ISP login logs you in to your Internet service. Your service provider has provided you with
this login information in a letter or some other way. If you cannot find this login
information, contact your service provider.
•
Wi-Fi network name and passphrase logs you in to your wireless network. This login is
preconfigured and can be found on the label on the bottom of your unit. See Chapter 3,
Wireless Settings, for more information.
Router Internet Setup
28
3.
Wireless Settings
Protecting your wireless net work
This chapter contains the following sections:
•
Wireless Adapter Compatibility
•
Preset Security
•
Wireless Security Basics
•
Add Clients (Devices) to Your Network
•
Wireless Settings
29
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Wireless Adapter Compatibility
A wireless adapter is the wireless radio in your computer or wireless device that lets it
connect to a wireless network. Most computers or wireless devices come with an adapter
already installed, but if it is outdated or slow, you can purchase a USB adapter to plug into a
USB port.
Make sure the wireless adapter in each computer in your wireless network supports the same
security settings as the modem router. See the next section, Preset Security for information
about the modem router’s preconfigured security settings.
Note: If you connect devices to your modem router using WPS as
described in Wi-Fi Protected Setup (WPS) Method on page 33,
those devices assume the security settings of the modem router.
Preset Security
The modem router comes with preset security. This means that the Wi-Fi network name
(SSID), passphrase, and security option (encryption protocol) are preset in the factory. You
can find the preset SSID and passphrase on the bottom of the unit.
•
Wi-Fi network name (SSID) identifies your network so devices can find it.
•
Passphrase controls access to your network. Devices that know the SSID and the
passphrase can find your wireless network and connect.
Note: The preset SSID and passphrase are uniquely generated for every
device to protect and maximize your wireless security.
•
Security option is the type of security protocol applied to your wireless network. The
security protocol in force encrypts data transmissions and ensures that only trusted
devices receive authorization to connect to your network. The preset security option is
WPA-PSK/WPA2-PSK mixed mode, described in Wireless Security Options on page 32.
The Wireless Settings screen lets you view and change the preset security settings.
However, NETGEAR recommends that you not change your preset security settings. If
you do decide to change your preset security settings, make a note of the new settings and
store it in a safe place where you can easily find it.
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Wireless Security Basics
Unlike wired network data, wireless data transmissions extend beyond your walls and can be
received by any device with a compatible wireless adapter (radio). For this reason, it is very
important to maintain the preset security and understand the other security features available
to you. Besides the preset security settings described earlier, your modem router has the
security features described here and in Chapter 4, Content Filtering.
•
Turn off wireless connectivity
•
Disable SSID broadcast
•
Restrict access by MAC address
•
Wireless security options
Turn Off Wireless Connectivity
You can completely turn off the wireless connectivity of the modem router by pressing the
Wireless On/Off button on its front panel . For example, if you use your notebook computer
to wirelessly connect to your modem router and you take a business trip, you can turn off the
wireless portion of the modem router while you are traveling. Other members of your
household who use computers connected to the modem router through Ethernet cables can
still use the modem router.
Disable SSID Broadcast
By default, the modem router broadcasts its Wi-Fi network name (SSID) so devices can find
it. If you change this setting to not allow the broadcast, wireless devices cannot find your
modem router unless they are configured with the same SSID. See Wireless Access Point
Settings on page 36 for the procedure.
Turning off SSID broadcast nullifies the wireless network discovery feature of some products
such as Windows XP, but the data is still fully exposed to a determined snoop using
specialized test equipment like wireless sniffers. If you allow the broadcast, be sure to keep
wireless security enabled.
Restrict Access by MAC Address
You can enhance your network security by allowing access to only specific computers based
on their Media Access Control (MAC) addresses. You can restrict access to only trusted
computers so that unknown computers cannot wirelessly connect to the modem router. MAC
address filtering adds an obstacle against unwanted access to your network, but the data
broadcast over the wireless link is fully exposed (unencrypted).The Wireless Station Access
List determines which wireless hardware devices are allowed to connect to the modem router
by MAC address.
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Wireless Security Options
A security option is the type of security protocol applied to your wireless network. The
security protocol in force encrypts data transmissions and ensures that only trusted devices
receive authorization to connect to your network. There are two types of encryption: Wired
Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). WPA has several options
including pre-shared key (PSK) encryption.
This section presents an overview of the security options and provides guidance on when to
use which option.
WEP Encryption
WEP uses an old encryption method and can be easily decoded with today’s powerful
computers. Use this mode only when you have a very old legacy wireless client that does not
support WPA-PSK. The Wi-Fi alliance highly recommends against using WEP and plans to
make it obsolete. If you do decide to use WEP, see To set up WEP: on page 37 for the
procedure.
WPA Encryption
WPA encryption is built into all hardware that has the Wi-Fi-certified seal. This seal means
the product is authorized by the Wi-Fi Alliance (http://www.wi-fi.org/) because it complies with
the worldwide single standard for high-speed wireless local area networking. For information
about how to use the WPA home options, see To set up WPA2 or WPA security: on page 37.
WPA-PSK uses a much stronger encryption algorithm than WEP so it is harder to decode.
This option uses a passphrase to perform the authentication and generate the initial data
encryption keys. Then it dynamically varies the encryption key. WPA-PSK uses Temporal Key
Integrity Protocol (TKIP) data encryption, implements most of the IEEE 802.11i standard, and
is designed to work with all wireless network interface cards, but not all wireless access
points. It is superseded by WPA2-PSK.
WPA2-PSK is the strongest. It is advertised to be theoretically indecipherable due to the
greater degree of randomness in encryption keys that it generates. WPA2-PSK gets higher
speed because it is usually implemented through hardware, while WPA-PSK is usually
implemented through software. WPA2-PSK uses a passphrase to authenticate and generate
the initial data encryption keys. Then it dynamically varies the encryption key.
WPS-PSK + WPA2-PSK mixed mode is the preconfigured security mode on the modem
router. NETGEAR recommends mixed mode because it provides broader support for all
wireless clients. WPA2-PSK clients get higher speed and security, and WPA-PSK clients get
decent speed and security. The product documentation for your wireless adapter and WPA
client software should have instructions about configuring their WPA settings.
WPA-802.1x is enterprise-level security and requires an authentication server to recognize
and authorize client access. The authentication server is called Remote Authentication Dial
In User Service (RADIUS). Every wireless client has a user login on the RADIUS server, and
the modem router has a client login on the RADIUS server. Data transmissions are encrypted
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with an automatically generated key. For information about how to use the WPA enterprise
option, see To set up WEP: on page 37.
Add Clients (Devices) to Your Network
Choose either the manual or the WPS method to add wireless devices, including guest
devices, and other equipment to your wireless network.
Manual Method

To add clients (devices) to your network manually:
1. Open the software that manages your wireless connections on the wireless device
(laptop computer, gaming device, iPhone) that you want to connect to your router. This
software scans for all wireless networks in your area.
2. Look for your network and select it. If you did not change the name of your network during
the setup process, look for the default Wi-Fi network name (SSID) and select it. The default
Wi-Fi network name (SSID) is located on the product label on the bottom of the router.
3. Enter the modem router passphrase and click Connect. The default modem router
passphrase is located on the product label on the bottom of the router.
4. Repeat steps 1–3 to add other wireless devices.
Wi-Fi Protected Setup (WPS) Method
Wi-Fi Protected Setup (WPS) is a standard for easily adding computers and other devices to
a home network while maintaining security. To use WPS, make sure that all wireless devices
to be connected to the network are Wi-Fi certified and support WPS. During the connection
process, the client gets the security settings from the router so that every device in the
network has the same security settings.
Note: However, if you find that the router is generating new security
settings for each added device, it means that the default value for
Keep Existing Wireless Settings has changed. See WPS Settings on
page 87 for more information about this setting.
All Wi-Fi-certified and WPS-capable products are compatible with the NETGEAR products
that have Push 'N' Connect, which is based on WPS.1 For information about how to view a
list of all wireless and wired devices connected to your modem router, see View Attached
Devices on page 64.
You can use the WPS (Push 'N' Connect) or router interface method to add wireless devices
and other equipment to your wireless network. WEP security does not support WPS. If you
try to use WPS to connect a WEP device to your network, it cannot connect.
1. For a list of other Wi-Fi-certified products available from NETGEAR, go to http://www.wi-fi.org.
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WPS (Push 'N' Connect) Method

If your wireless device supports WPS (Push 'N' Connect), follow these steps:
1. Press the WPS button on the router front panel
.
2. Within 2 minutes, press the WPS button on your wireless device, or follow the WPS
instructions that came with the device. The device is now connected to your router.
3. Repeat steps 1–2 to add other WPS wireless devices.
Router Interface Method

To add clients (devices) using the router interface:
1. Select Add WPS Client at the top of the router menus. If you cannot select Add WPS
Client, select Setup > Wireless Settings and make sure that WPS is selected.
2. Click Next. The following screen lets you select the method for adding the WPS client.
3. Select either Push Button or PIN Number. With either method, the client wireless device
attempts to detect the WPS signal from the modem router and establish a wireless
connection in the time allotted.
The PIN method displays this screen so you can enter the client security PIN number:
•
While the modem router attempts to connect to a WPS-capable device, the WPS LED
on the front of the modem router blinks green. When the modem router establishes a
WPS connection, the LED is solid green.
•
If a connection is established, the modem router WPS screen displays a confirmation
message.
4. Repeat to add another WPS client to your network.
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Wireless Settings
The Wireless Settings screen lets you view or configure the wireless network configuration.
Once you have established basic wireless connectivity, you can enable security settings
appropriate to your needs.
Before you begin, check the following:

•
Every wireless computer has to be able to obtain an IP address by DHCP from the router
as described in Use Standard TCP/IP Properties for DHCP on page 17.
•
Each computer or wireless adapter in your network supports the wireless mode
(bandwidth/data rate) and the security option you want to use.
To configure the wireless settings:
If you use a wireless connection to log in and change the wireless security settings, you are
disconnected when you click Apply. To avoid this problem, use a computer with a wired
connection to access the modem router to configure the wireless settings.
1. Select Setup > Wireless Settings to display the following screen.
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2. Make any changes that are needed, and click Apply when done to save your settings.
The screen sections, settings, and procedures are explained in the following sections.
3. After you finish adjusting settings and click Apply, configure and test your computers for
wireless connectivity:
a. set the wireless adapter of your computers to have the same SSID and channel that
you specified in the router.
b. Check that the adapters have a wireless link and can obtain an IP address by DHCP
from the modem router.
Wireless Network Settings
Name (SSID). The SSID is also known as the wireless network name. Enter a 32-character
(maximum) name in this field. This field is case-sensitive.
Region. The location where the modem router is used. It might not be legal to operate the
modem router in a region other than the regions listed.
Channel. The wireless channel used by the gateway: 1 through 13. Do not change the
channel unless you experience interference (shown by lost connections or slow data
transfers). If this happens, experiment with different channels to see which is the best.
Mode. Up to 145 Mbps is the default and allows 802.11n and 802.11g wireless devices to join
the network. g & b supports up to 54 Mbps. Up to 65 Mbps supports up to 65 Mbps.
Wireless Access Point Settings
Enable. When this check box is selected, the router accepts wireless clients. When the check
box is not selected, the router accepts wired clients only. This check box is selected by
default.
Allow Broadcast of Name (SSID). This setting allows the modem router to broadcasts its
SSID so wireless stations can see this wireless name (SSID) in its scanned network list. This
check box is selected by default. To turn off the SSID broadcast, clear the Allow Broadcast
of Name (SSID) check box and click Apply.
Wireless Isolation. When this check box is selected, wireless stations cannot communicate
with each other or with stations on the wired network. This check box is not selected by
default.
Security Options Settings
The Security Options section of the Wireless Settings screen lets you change the security
option and passphrase. See Wireless Security Options on page 32 for an explanation of the
security options and when to use which one.
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
To set up WPA2 or WPA security:
1. In the Security Options sections, select the WPA2 or WPA options that you want.
2. In the Passphrase field that displays when you select a WPA security option, enter the
network keys (passphrases) that you want to use. They are text strings from 8 to 63
characters.

To set up WEP:
WEP is a legacy security setting. NETGEAR recommends that you use WPA2 or WPA
security unless you have legacy wireless equipment that supports only WEP. WEP
encryption is available only when the Mode setting is Up to 54 Mbps.
1. In the Security Options section, select WEP to display the following screen:
2. Select the authentication type. The default is Automatic. Other choices are Open System
(any client can authenticate itself to the network) and Shared Key (a passphrase and a
four-way challenge is needed for authentication).
3. Select the encryption strength setting, either 64 bit or 128 bit.
4. Enter the four data encryption keys either manually or automatically. These values have to
be identical on all computers and access points in your network.
• Automatic. Enter a word or group of printable characters in the Passphrase field, and
click Generate. The four key fields are automatically populated with key values.
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•
Manual. The number of hexadecimal digits that you enter depends on the encryption
strength setting:
-
For 64-bit WEP, enter 10 hexadecimal digits (any combination of 0–9, a–f, or
A–F).
-
For 128-bit WEP, enter 26 hexadecimal digits (any combination of 0–9, a–f, or
A–F).
5. Select the radio button for the key you want to make active.
Make sure that you understand how the WEP key settings are configured in your wireless
adapter. Wireless adapter configuration utilities such as the one in Windows XP allow one
key entry, which has to match the default key you set in the modem router.
6. Click Save to save your settings or click Apply so your changes to take effect immediately.
Wireless Settings
38
4.
Content Filtering
Keepi ng unwanted content out of your net work
4
This chapter explains how to use the basic firewall features of the modem router to prevent
objectionable content from reaching the computers and other devices connected to your
network.
This chapter contains the following sections:
•
Live Parental Controls
•
Keyword Blocking of HTTP Traffic
•
Firewall Rules to Control Network Access
•
Set the Time Zone
•
Set the Time Zone
•
Schedule Firewall Services
•
Email Logs and Alerts
•
Log the Network Activity
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Live Parental Controls
The free Live Parental Controls application is available at the NETGEAR website. Use youre
web browser to visit www.netgear.com/lpc.
You can learn more about Live Parental Controls or download the application.
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Keyword Blocking of HTTP Traffic
Use keyword blocking to prevent certain types of HTTP traffic from accessing your network.
The blocking can be always or according to a scheduled.

To set up keyword blocking:
1. Select Content Filtering > Block Sites.
2. Select one of the keyword blocking options:
• Per Schedule. Turn on keyword blocking according to the Schedule screen settings.
•
Always. Turn on keyword blocking all the time, independent of the Schedule screen.
3. In the Keyword field, enter a keyword or domain, click Add Keyword, and click Apply.
The Keyword list supports up to 32 entries. Here are some sample entries:
•
Specify XXX to block http://www.badstuff.com/xxx.html.
•
Specify .com if you want to allow only sites with domain suffixes such as .edu or .gov.
•
Enter a period (.) to block all Internet browsing access.
Delete a Keyword or Domain

To delete a keyword or domain:
1. Select the keyword you want to delete from the list.
2. Click Delete Keyword and click Apply to save your changes.
Specify a Trusted Computer
You can exempt one trusted computer from blocking and logging. The computer you exempt
has to have a fixed IP address.
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
To specify a trusted computer:
1. In the Trusted IP Address field, enter the IP address.
2. Click Apply to save your changes.
Firewall Rules to Control Network Access
By default your router blocks any inbound traffic from the Internet to your computers except
for replies to your outbound traffic. You might need to create exceptions to this rule to allow
remote computers to access a server on your local network or to allow certain applications
and games to work correctly. Your router provides port forwarding and port triggering for
creating these exceptions.
This section covers the following topics:
•
Remote Computer Access Basics
•
Port Triggering to Open Incoming Ports
•
Port Forwarding to Permit External Host Communications
•
How Port Forwarding Differs from Port Triggering
•
Configure Port Forwarding to Local Servers
•
Configure Port Triggering
Remote Computer Access Basics
When a computer on your network needs to access a computer on the Internet, your
computer sends your router a message containing the source and destination address and
process information. Before forwarding your message to the remote computer, your router
has to modify the source information and create and track the communication session so that
replies can be routed back to your computer.
Here is an example of normal outbound traffic and the resulting inbound responses:
1. You open a browser and your operating system assigns port number 5678 to this
browser session.
2. You type http://www.example.com into the URL field, and your computer creates a web page
request message with the following address and port information. The request message is
sent to your router.
Source address. Your computer’s IP address.
Source port number. 5678, which is the browser session.
Destination address. The IP address of www.example.com, which your computer finds
by asking a DNS server.
Destination port number. 80, which is the standard port number for a web server
process.
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3. Your router creates an entry in its internal session table describing this communication
session between your computer and the web server at www.example.com. Before sending
the web page request message to www.example.com, your router stores the original
information and then modifies the source information in the request message, performing
Network Address Translation (NAT):
• The source address is replaced with your router’s public IP address. This is
necessary because your computer uses a private IP address that is not globally
unique and cannot be used on the Internet.
•
The source port number is changed to a number chosen by the router, such as 33333.
This is necessary because two computers could independently be using the same
session number.
Your router then sends this request message through the Internet to the web server at
www.example.com.
4. The web server at www.example.com composes a return message with the requested web
page data. The return message contains the following address and port information. The
web server then sends this reply message to your router.
Source address. The IP address of www.example.com.
Source port number. 80, which is the standard port number for a web server process.
Destination address. The public IP address of your router.
Destination port number. 33333.
5. Upon receiving the incoming message, your router checks its session table to determine
whether there is an active session for port number 33333. Finding an active session, the
router then modifies the message to restore the original address information replaced by
NAT. Your router sends this reply message to your computer, which displays the web
page from www.example.com. The message now contains the following address and port
information.
Source address. The IP address of www.example.com.
Source port number. 80, which is the standard port number for a web server process.
Destination address. Your computer’s IP address.
Destination port number. 5678, which is the browser session that made the initial
request.
6. When you finish your browser session, your router eventually detects a period of inactivity in
the communications. Your router then removes the session information from its session
table, and incoming traffic is no longer accepted on port number 33333.
Port Triggering to Open Incoming Ports
In the preceding example, requests are sent to a remote computer by your router from a
particular service port number, and replies from the remote computer to your router are
directed to that port number. If the remote server sends a reply back to a different port
number, your router does not recognize it and discards it. However, some application servers
(such as FTP and IRC servers) send replies back to multiple port numbers. Using the port
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triggering function of your router, you can tell the router to open additional incoming ports
when a particular outgoing port originates a session.
An example is Internet Relay Chat (IRC). Your computer connects to an IRC server at
destination port 6667. The IRC server not only responds to your originating source port, but
also sends an “identify” message to your computer on port 113. Using port triggering, you can
tell the router, “When you initiate a session with destination port 6667, you have to also allow
incoming traffic on port 113 to reach the originating computer.” Using steps similar to the
preceding example, the following sequence shows the effects of the port triggering rule you
have defined:
1. You open an IRC client program to start a chat session on your computer.
2. Your IRC client composes a request message to an IRC server using a destination port
number of 6667, the standard port number for an IRC server process. Your computer then
sends this request message to your router.
3. Your router creates an entry in its internal session table describing this communication
session between your computer and the IRC server. Your router stores the original
information, performs Network Address Translation (NAT) on the source address and port,
and sends this request message through the Internet to the IRC server.
4. Noting your port triggering rule and having observed the destination port number of 6667,
your router creates an additional session entry to send any incoming port 113 traffic to your
computer.
5. The IRC server sends a return message to your router using the NAT-assigned source port
(as in the previous example, let’s say port 33333) as the destination port. The IRC server
also sends an “identify” message to your router with destination port 113.
6. Upon receiving the incoming message to destination port 33333, your router checks its
session table to determine whether there is an active session for port number 33333.
Finding an active session, the router restores the original address information replaced by
NAT and sends this reply message to your computer.
7. Upon receiving the incoming message to destination port 113, your router checks its session
table and learns that there is an active session for port 113, associated with your computer.
The router replaces the message’s destination IP address with your computer’s IP address
and forwards the message to your computer.
8. When you finish your chat session, your router eventually senses a period of inactivity in the
communications. The router then removes the session information from its session table,
and incoming traffic is no longer accepted on port numbers 33333 or 113.
To configure port triggering, you need to know which inbound ports the application needs.
Also, you need to know the number of the outbound port that will trigger the opening of the
inbound ports. You can usually determine this information by contacting the publisher of the
application, or user groups or newsgroups.
Note: Only one computer at a time can use the triggered application.
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Port Forwarding to Permit External Host Communications
In both of the preceding examples, your computer initiates an application session with a
server computer on the Internet. However, you might need to allow a client computer on the
Internet to initiate a connection to a server computer on your network. Normally, your router
ignores any inbound traffic that is not a response to your own outbound traffic. You can
configure exceptions to this default rule by using the port forwarding feature.
A typical application of port forwarding can be shown by reversing the client-server
relationship from the previous web server example. In this case, a remote computer’s
browser needs to access a web server running on a computer in your local network. Using
port forwarding, you can tell the router, “When you receive incoming traffic on port 80 (the
standard port number for a web server process), forward it to the local computer at
192.168.1.123.” The following sequence shows the effects of the port forwarding rule you
have defined:
1. The user of a remote computer opens a browser and requests a web page from
www.example.com, which resolves to the public IP address of your router. The remote
computer composes a web page request message with the following destination
information:
Destination address. The IP address of www.example.com, which is the address of your
router.
Destination port number. 80, which is the standard port number for a web server
process.
The remote computer then sends this request message through the Internet to your
router.
2. Your router receives the request message and looks in its rules table for any rules covering
the disposition of incoming port 80 traffic. Your port forwarding rule specifies that incoming
port 80 traffic should be forwarded to local IP address 192.168.1.123. Therefore, your router
modifies the destination information in the request message:
The destination address is replaced with 192.168.1.123.
Your router then sends this request message to your local network.
3. Your web server at 192.168.1.123 receives the request and composes a return message
with the requested web page data. Your web server then sends this reply message to your
router.
4. Your router performs Network Address Translation (NAT) on the source IP address, and
sends this request message through the Internet to the remote computer, which displays the
web page from www.example.com.
To configure port forwarding, you need to know which inbound ports the application needs.
You usually can determine this information by contacting the publisher of the application or
the relevant user groups and newsgroups.
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How Port Forwarding Differs from Port Triggering
The following points summarize the differences between port forwarding and port triggering:
•
Port triggering can be used by any computer on your network, although only one
computer can use it at a time.
•
Port forwarding is configured for a single computer on your network.
•
Port triggering does not need to know the computer’s IP address in advance. The IP
address is captured automatically.
•
Port forwarding requires that you specify the computer’s IP address during configuration,
and the IP address can never change.
•
Port triggering requires specific outbound traffic to open the inbound ports, and the
triggered ports are closed after a period of no activity.
•
Port forwarding is always active and does not need to be triggered.
Configure Port Forwarding to Local Servers
Using the port forwarding feature, you can allow certain types of incoming traffic to reach
servers on your local network. For example, you might want to make a local web server, FTP
server, or game server visible and available to the Internet.
Use the Port Forwarding screen to configure the router to forward specific incoming protocols
to computers on your local network. In addition to servers for specific applications, you can
also specify a default DMZ server to which all other incoming protocols are forwarded.
Before starting, you need to determine which type of service, application, or game you want
to provide, and the local IP address of the computer that provides the service. The server
computer has to always have the same IP address.
Tip: To ensure that your server computer always has the same IP address,
use the reserved IP address feature of your product.
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
To configure port forwarding:
1. Select Content Filtering > Port Forwarding/Port Triggering to display the following
screen:
2. Select the Port Forwarding radio button as the service type.
3. From the Service Name list, select the service or game that you will host on your network. If
the service does not appear in the list, see Add a Custom Service on page 47.
4. In the corresponding Server IP Address field, enter the last digit of the IP address of your
local computer that will provide this service.
5. Click Add. The service appears in the list in the screen.
Add a Custom Service
To define a service, game, or application that does not appear in the Service Name list, you
have to first determine which port number or range of numbers is used by the application.
You can usually determine this information by contacting the publisher of the application or
user groups or newsgroups.

When you have the port number information, follow these steps:
1. Select Content Filtering > Port Forwarding/Port Triggering.
2. Select the Port Forwarding radio button as the service type.
3. Click the Add Custom Service button to display the following screen:
4. In the Service Name field, enter a descriptive name.
5. In the Protocol field, select the protocol. If you are unsure, select TCP/UDP.
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6. In the Starting Port field, enter the beginning port number.
• If the application uses a single port, enter the same port number in the Ending Port
field.
•
If the application uses a range of ports, enter the ending port number of the range in
the Ending Port field.
7. In the Server IP Address field, enter the IP address of your local computer that will provide
this service.
8. Click Apply. The service appears in the list in the Port Forwarding/Port Triggering screen.
Edit or Delete a Port Forwarding Entry

To edit or delete a port forwarding entry:
1. In the table, select the button next to the service name.
2. Click Edit Service or Delete Service.
Application Example: Making a Local Web Server Public
If you host a web server on your local network, you can use port forwarding to allow web
requests from anyone on the Internet to reach your web server.

To make a local web server public:
1. Assign your web server either a fixed IP address or a dynamic IP address using DHCP
address reservation. In this example, your router always gives your web server an IP
address of 192.168.1.33.
2. In the Port Forwarding screen, configure the router to forward the HTTP service to the local
address of your web server at 192.168.1.33. HTTP (port 80) is the standard protocol for web
servers.
3. (Optional) Register a host name with a Dynamic DNS service, and configure your router to
use the name. To access your web server from the Internet, a remote user has to know the
IP address that has been assigned by your ISP. However, if you use a Dynamic DNS
service, the remote user can reach your server by a user-friendly Internet name, such as
mynetgear.dyndns.org.
Configure Port Triggering
Port triggering is a dynamic extension of port forwarding that is useful in these cases:
•
More than one local computer needs port forwarding for the same application (but not
simultaneously).
•
An application needs to open incoming ports that are different from the outgoing port.
When port triggering is enabled, the router monitors outbound traffic looking for a specified
outbound “trigger” port. When the router detects outbound traffic on that port, it remembers
the IP address of the local computer that sent the data. The router then temporarily opens the
specified incoming port or ports, and forwards incoming traffic on the triggered ports to the
triggering computer.
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While port forwarding creates a static mapping of a port number or range to a single local
computer, port triggering can dynamically open ports to any computer that needs them and
can close the ports when they are no longer needed.
Note: If you use applications such as multiplayer gaming, peer-to-peer
connections, real-time communications such as instant messaging,
or remote assistance (a feature in Windows XP), you should also
enable Universal Plug and Play (UPnP).
To configure port triggering, you need to know which inbound ports the application needs.
Also, you need to know the number of the outbound port that will trigger the opening of the
inbound ports. You can usually determine this information by contacting the publisher of the
application or user groups or newsgroups.

To set up port triggering:
1. Select Content Filtering > Port Forwarding/Port Triggering to display the following
screen:
2. Select the Port Triggering radio button to display the port triggering information.
3. Clear the Disable Port Triggering check box.
Note: If the Disable Port Triggering check box is selected after you
configure port triggering, port triggering is disabled. However, any
port triggering configuration information you added to the router is
retained even though it is not used.
4. In the Port Triggering Timeout field, enter a value up to 9999 minutes. This value controls
the inactivity timer for the designated inbound ports. The inbound ports close when the
inactivity time expires. This is required because the router cannot be sure when the
application has terminated.
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5. Click Add Service.
6. In the Service Name field, type a descriptive service name.
7. In the Service User field, select Any (the default) to allow this service to be used by any
computer on the Internet. Otherwise, select Single address, and enter the IP address of
one computer to restrict the service to a particular computer.
8. Select the service type, either TCP or UDP or both (TCP/UDP). If you are not sure, select
TCP/UDP.
9. In the Triggering Port field, enter the number of the outbound traffic port that will cause the
inbound ports to be opened.
10. Enter the inbound connection port information in the Connection Type, Starting Port, and
Ending Port fields.
11. Click Apply. The service appears in the Port Triggering Portmap table.
Set the Time Zone
The modem router uses the Network Time Protocol (NTP) to obtain the current time and date
from one of several network time servers on the Internet.
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
To set the time zone:
1. Select Content Filtering > Schedule to display the following screen:
2. Select your time zone. This setting determines the blocking schedule and time-stamping of
log entries.
3. If your time zone is in daylight savings time, select the Adjust for Daylight Savings Time
check box to add one hour to standard time.
Note: If your region uses daylight savings time, select Adjust for Daylight
Savings Time on the first day and clear it after the last day.
4. The modem router has a list of NETGEAR NTP servers. If you would prefer to use a
particular NTP server as the primary server, select the Use this NTP Server check box, and
enter its IP address.
5. Click Apply to save your settings.
Schedule Firewall Services
If you enabled services blocking in the Block Services screen or port forwarding in the Port
Forwarding/Port Triggering screen, you can set up a schedule for when blocking occurs or
when access is not restricted.
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
To schedule firewall services:
1. Select Content Filtering > Schedule to display the following screen:
2. To block Internet services based on a schedule, select Every Day, or select one or more
days. If you want to limit access completely for the selected days, select All Day. Otherwise,
to limit access during certain times for the selected days, enter times in the Start Time and
End Time fields.
Note: Enter the values in 24-hour time format. For example, 10:30 a.m.
would be 10 hours and 30 minutes, and 10:30 p.m. would be 22
hours and 30 minutes. If you set the start time after the end time, the
schedule is effective through midnight the next day.
3. Click Apply to save your settings.
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Email Logs and Alerts
To receive logs and alerts by email, provide your email information in the Email screen, and
specify which alerts you want to receive and how often.

To enable security event email notification:
1. Select Content Filtering > Email to display the following screen:
2. Fill in the fields and click Apply.
Email Screen Fields
•
Turn E-mail Notification On. Select this check box if you want to receive email logs and
alerts from the modem router.
•
Send To This E-mail Address. Enter the email address where you want logs and alerts
sent. This email address is also used as the From address. If you leave this field blank,
log and alert messages are not sent by email.
•
Outgoing Mail Server. Enter the name or IP address of your ISP’s outgoing (SMTP) mail
server (such as mail.myISP.com). You might be able to find this information in the
configuration settings of your email program. Enter the email address to which logs and
alerts are sent. This email address is also used as the From address. If you leave this
field blank, log and alert messages are not sent by email.
•
My Mail Server requires authentication. If you use an outgoing mail server provided by
your current ISP, you do not need to select this check box. If you use an email account
that is not provided by your ISP, select this check box, and enter the required user name
and password information.
•
Send E-Mail alerts immediately. Select the corresponding check box if you would like
immediate notification of a significant security event, such as a known attack, port scan,
or attempted access to a blocked site.
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•
Send Logs According to this Schedule. Specifies how often to send the logs: Hourly,
Daily, Weekly, or When Full.
-
Day for sending logs specifies which day of the week to send the log. This is relevant
when the log is sent weekly.
-
Time for sending log specifies the time of day to send the log. This is relevant when
the log is sent daily or weekly.
If the Weekly, Daily, or Hourly option is selected and the log fills up before the specified
period, the log is automatically emailed to the specified email address. After the log is sent, it
is cleared from the modem router’s memory. If the modem router cannot email the log file, the
log buffer might fill up. In this case, the modem router overwrites the log and discards its
contents.
Log the Network Activity
A log is a detailed record of the websites that users on your network have accessed or
attempted to access. If you have set up content filtering on the Block Sites screen, the Logs
screen shows you when someone on your network tried to access a blocked site. If you have
email notification on, you receive these logs in an email message. If you do not have email
notification set up, you can view the logs on the Logs screen.

To log the network activity:
1. Select Content Filtering > Logs to display the Logs screen:
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a. To delete all the log entries, click Clear Log.
b. To see the most recent access attempts, click Refresh.
c. To send the log file to your e-mail account, click Send Log. This feature is useful for
testing your e-mail settings.
2. Use the Include in Log check boxes to determine which events are included in the log.
Selecting all check boxes increases the size of the log, so it is good practice to disable any
events that are not really required.
• Attempted access to blocked sites. If selected, attempted Internet accesses that
were blocked are logged.
•
Connections to the Web-based interface of this Router. If selected, connections
are logged to this router, rather than through this router to the Internet.
•
Router operation. If selected, router operations not covered by the preceding
selections are logged.
•
Known DoS attacks and Port Scans. If selected, denial of service attacks, as well
as port scans, are logged.
3. The logs can be sent to a syslog server. Enable one of the three options in the Syslog
section, as required:
• Disable. Select this if you do not have a syslog server.
•
Broadcast on LAN. The syslog data is broadcast rather than sent to a specific syslog
server. Use this if your syslog server does not have a fixed IP address.
•
Send to this Syslog server IP address. If your syslog server has a fixed IP address,
select this option, and enter the IP address of your syslog server.
4. Click Apply to save your changes.
Content Filtering
55
5.
Network Maintenance
5
Admi n istering your net work
This chapter describes the modem router settings for administering and maintaining the router
and home network.
Note: For security reasons, the modem router has its own user name
admin and its password that defaults to password. You can and
should update your password regularly. See Change Password and
Login Time-Out on page 27.
This chapter contains the following sections:
•
Upgrade the Router Firmware
•
Manually Check for Firmware Upgrades
•
Manage Configuration File
•
View Router Status
•
View Attached Devices
•
Run Diagnostic Utilities
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Upgrade the Router Firmware
The modem router firmware (routing software) is stored in flash memory. By default, when
you log in to your modem router, it checks the NETGEAR website for new firmware and alerts
you if there is a newer version.
WARNING!
When uploading firmware to the modem router, do not interrupt
the web browser by closing the window, clicking a link, or loading
a new page. If the browser is interrupted, it could corrupt the
firmware.
Automatic Firmware Checking Off
You can turn the automatic firmware checking off and check for firmware updates manually if
you prefer. See Manually Check for Firmware Upgrades on page 59. To turn off the automatic
firmware check at login:

To turn off automatic firmware checking:
1. Select Maintenance > Router Upgrade.
2. Clear the Check for Updated Firmware Upon Log-in check box at the bottom of this
screen:
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Automatic Firmware Checking On
When automatic firmware checking is on, the modem router performs the check and notifies
you if an upgrade is available or not as shown here.
Figure 9. Firmware check notification screens

To turn on automatic firmware checking:
1. Click Yes to allow the modem router to download and install the new firmware. The
upgrade process could take a few minutes. When the upload is complete, your modem
router restarts.
2. Go to the DGND3800B support page at http://www.netgear.com/support and read the new
firmware release notes to determine whether you need to reconfigure the modem router
after upgrading.
Note: If you get a “Firmware needs to be reloaded” message, it means a
problem has been detected with the router’s firmware. Follow the
prompts to correct the problem, or see Firmware Needs to Be
Reloaded on page 144 for a description of the steps.
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Manually Check for Firmware Upgrades
You can use the Router Upgrade screen to manually check the NETGEAR website for newer
versions of firmware for your product.
WARNING!
When uploading firmware to the modem router, do not interrupt
the web browser by closing the window, clicking a link, or loading
a new page. If the browser is interrupted, it could corrupt the
firmware.

To check for firmware upgrades manually:
1. Select Maintenance > Router Status and make a note of the modem router firmware
version number.
2. Go to the DGND3800B support page on the NETGEAR website at
http://www.netgear.com/support.
3. If the firmware version on the NETGEAR website is newer than the firmware on your
modem router, download the file to your computer.
4. Select Maintenance > Router Upgrade to display the following screen:
5. Click Browse, and locate the firmware you downloaded (the file ends in .img).
6. Click Upload to send the firmware to the modem router.
When the upload is done, your modem router restarts. The upgrade process typically
takes about 1 minute. Read the new firmware release notes to determine whether or not
you need to reconfigure the modem router after upgrading.
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Manage Configuration File
The router configuration settings are stored in a configuration file (*.cfg). This file can be
backed up to your computer, restored, or reverted to factory default settings.
Back Up

To back up the configuration file:
1. Select Maintenance > Backup Settings to display the following screen:
2. Click Save to save a copy of the current settings.
3. Choose a location to store the .cfg file that is on a computer on your network.
Restore

To restore a configuration file:
1. Enter the full path to the file on your network, or click the Browse button to find the file.
2. When you have located the .cfg file, click the Restore button to upload the file to the modem
router.
Upon completion, the modem router reboots.
Erase
Click the Erase button to reset the modem router to its factory default settings. Alternately,
press the Wireless On/Off and WPS buttons on the side panel of the modem router
simultaneously for 6 seconds.
Erase sets the password to password and the LAN IP address to 192.168.0.1, and enables
the modem router’s DHCP.
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View Router Status
Select Maintenance > Router Status to display the Router Status screen:.
You can use the Router Status screen to check the current firmware, settings, and statistics
for your router. If something needs to be changed, you have to change it on the relevant
screen.
Account Name. This is the account name that you entered in the Setup Wizard or Basic
Settings screen.
Firmware Version. This is the current software the router is using. This changes if you
upgrade your router.
Internet Port. These are the current settings that you set in the Setup Wizard or Basic
Settings screen.
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•
MAC Address. The physical address of the router, as seen from the Internet.
•
IP Address. Current Internet IP address. If assigned dynamically, and no Internet
connection exists, this is blank or 0.0.0.0.
•
Network Type. Indicates either Client (IP address is obtained dynamically) or None.
•
IP Subnet Mask. The subnet mask associated with the Internet IP address.
•
Domain Name Server. Displays the address of the current DNS.
LAN Port. These are the current settings, as set in the LAN IP Setup screen.
•
MAC Address. The physical address of the router, as seen from the LAN.
•
IP Address. LAN IP address of the router.
•
DHCP. Indicates if the router is acting as a DHCP server for devices on your LAN.
•
IP Subnet Mask. Subnet mask associated with the LAN IP address.
Modem. The current modem status and settings are shown in this section.
•
ADSL Firmware Version. This is the version number of the low-level ADSL firmware.
This is contained within the router firmware.
•
Modem Status. The current state of the ADSL connection to your phone company.
•
DownStream Connection Speed. The connection speed of the ADSL connection from
the phone company to your router.
•
UpStream Connection Speed. The connection speed of the ADSL connection from your
router to the phone company.
•
VPI. The VPI setting entered on the ADSL Settings screen.
•
VCI. The VCI setting entered on the ADSL Settings screen.
Wireless Port. These are the current settings, as set in the Wireless Settings screen.
•
Name (SSID). SSID of the router.
•
Region. The location (country).
•
Channel. The current channel in use.
•
Wireless AP. Indicates if the access point feature of the router is enabled or not. If not
enabled, the Wireless LED on the front panel is off.
•
Broadcast Name. Indicates if the router is broadcasting its SSID.
To see router performance statistics such as the number of packets sent and number of
packets received for each port, click Show Statistics.
To see information about your current connection, click Connection Status.
Guest Network.
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Show Statistics Button
Click the Show Statistics button on the Router Status screen to display a screen similar to
this:
Figure 10. Router statistics screen
•
Port. The statistics for the WAN (Internet), LAN (local), and wireless LAN (WLAN) ports.
For each port, the screen displays the following:
-
Status. The link status of the port.
-
TxPkts. The number of packets transmitted since reset or manual clear.
-
RxPkts. The number of packets received since reset or manual clear.
-
Collisions. The number of collisions since reset or manual clear.
-
Tx B/s. The current line utilization—percentage of current bandwidth used.
-
Rx B/s. The average line utilization.
-
Up Time. The time elapsed since the last power cycle or reset.
•
ADSL Link Downstream or Upstream. The statistics for the upstream and downstream
link. These statistics are of interest to your technical support representative if you have
problems obtaining or maintaining a connection.
•
Connection Speed. Typically, the downstream speed is faster than the upstream speed.
•
Line Attenuation. The line attenuation increases the farther you are physically located
from your ISP’s facilities.
•
Noise Margin. The signal-to-noise ratio, which is a measure of the quality of the signal on
the line.
•
Poll Interval. The interval at which the statistics are updated in this window. Click the
Stop button to freeze the display.
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Connection Status
In the Router Status screen, click the Connection Status button to display a screen similar to
this:
Figure 11. Connection Status screen
Connection Time. The time elapsed since the last connection to the Internet.
Connecting to sender. The connection status.
Negotiation. Success or Failed.
Authentication. Success or Failed.
Obtaining IP Address. The IP address assigned to the WAN port by the ISP.
Obtaining Network Mask. The network mask assigned to the WAN port by the ISP.
View Attached Devices
The Attached Devices screen presents a table of all IP devices that the modem router has
discovered on the local network. Select Maintenance > Attached Devices to view the
following table:
For each device, the table shows the IP address, device name if available, and the Ethernet
MAC address. Note that if the modem router is rebooted, the table data is lost until the
modem router rediscovers the devices. To force the modem router to look for attached
devices, click the Refresh button.
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Run Diagnostic Utilities
The modem router has a diagnostics feature that you can use to perform the following
functions:
•
Ping an IP address to test connectivity to see if you can reach a remote host.
•
Perform a DNS lookup to test if an Internet name resolves to an IP address to verify that
the DNS server configuration is working.
•
Display the Routing table to identify what other modem routers the modem router is
communicating with.
•
Reboot the modem router to enable new network configurations to take effect or to clear
problems with the modem router’s network connection.
Select Maintenance > Diagnostics to display the following screen.
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65
6.
USB Storage
Adding removable storage to your net work
6
This chapter describes how to access and configure a USB storage drive attached to your
modem router. The USB ports on the modem router can be used only to connect USB storage
devices like flash drives or hard drives. Do not connect computers, USB modems, printers, CD
drives, or DVD drives to the these USB ports.
Figure 12. USB ports, front and rear panel
This chapter includes the following sections:
•
USB Drive Requirements
•
ReadySHARE Access
•
File-Sharing Scenarios
•
USB Storage Basic Settings
•
Edit a Network Folder
•
USB Storage Advanced Settings
•
Safely Remove USB Drive
•
Media Server Settings
•
Approved USB Devices (Advanced USB Settings)
•
Connect to the USB Drive with Microsoft Network Settings
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USB Drive Requirements
The modem router works with 1.0 and 1.1 (USB Full Speed) and 2.0 (USB High Speed)
standards. The approximate USB bus speeds are shown in the following table.
Table 2. USB Bus Speeds
Bus
Speed/Second
USB 1.1
12 Mbits
USB 2.0
480 Mbits
Actual bus speeds can vary, depending on the CPU speed, memory, speed of the network,
and other variables. The modem router should work with USB 2.0-compliant or 1.1-compliant
external flash and hard drives. For the most up-to-date list of USB drives supported by the
modem router, go to:
http://kbserver.netgear.com/readyshare.
When selecting a USB device, bear in mind the following:
•
The USB port on the modem router can be used with one USB hard drive at a time. Do
not attempt to use a USB hub attached to the USB port.
•
According to the USB 2.0 specification, the maximum available power is 5V @ 0.5A.
Some USB devices might exceed this requirement, in which case the device might not
function or might function erratically. Check the documentation for your USB device to be
sure.
•
The modem router supports FAT, FAT32, and NTFS (read only) file systems.
ReadySHARE Access
Once you have set up your modem router, you can connect any USB storage device and
share the contents with other users on your network.
You can access your USB device in any of the following ways:
•
On Windows 7, Windows XP, Windows Vista, and Windows 2000 systems, select Start >
Run, and enter \\readyshare in the dialog box. Click OK.
•
On Windows 7, Windows XP, Windows Vista, and Windows 2000 systems, open Internet
Explorer or Safari, and enter \\readyshare in the address bar.
•
On Mac OS X (version 10.2 or later), enter smb://readyshare in the address bar.
•
In My Network Places, enter \\readyshare in the address bar.
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File-Sharing Scenarios
You can share files on the USB drive for a wide variety of business and recreational
purposes. The files can be any PC, Mac, or Linux file type including text files, Word,
PowerPoint, Excel, MP3, pictures, and multimedia. USB drive applications include:
•
Sharing multimedia with friends and family such as MP3 files, pictures, and other
multimedia with local and remote users.
•
Sharing resources on your network. You might want to store files in a central location so
that you do not have to power up a computer to perform local sharing. In addition, you
can share files between Macintosh, Linux, and PC computers by using the USB drive as
a go-between across the systems.
•
Sharing files such as Word documents, PowerPoint presentations, and text files with
remote users.
A few common uses are described in the following sections.
Sharing Photos
You can create your own central storage location for photos and multimedia. This eliminates
the need to log in to (and pay for) an external photo-sharing site.

To share files with your friends and family:
1. Insert your USB drive into the USB port on the modem router either directly or with a
USB cable.
Computers on your local area network (LAN) can automatically access this USB drive
using a web browser or Microsoft Networking.
2. If you want to specify read-only access or to allow access from the Internet, see Approved
USB Devices (Advanced USB Settings) on page 75.
Storing Files in a Central Location for Printing
This scenario is for a family that has one high-quality color printer directly attached to a
computer, but not shared on the local area network (LAN). This family does not have a print
server.

•
One family member has photos on a Macintosh computer that she wants to print.
•
The photo-capable color printer is directly attached to a PC, but not shared on the
network.
•
The Mac and PC are not visible to each other on the network.
To print photos from a Mac on the printer attached to a PC:
1. On the Mac, access the USB drive by typing \\readyshare in the address field of a web
browser. Then copy the photos to the USB drive.
2. On the PC, use a web browser or Microsoft Networking to copy the files from the USB drive
to the PC. Then print the files.
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Sharing Large Files over the Internet
Sending files that are larger than 5 MB can pose a problem for many email systems. The
modem router allows you to share very large files such as PowerPoint presentations or .zip
files over the Internet. FTP can be used to easily download shared files from the modem
router.
Sharing files with a remote colleague involves the following considerations:
•
There are two user accounts: admin and guest. The password for admin is the same one
that you use to access the modem router. By default, it is password. The guest user
account has no password.
•
On the FTP site, the person receiving the files should use the guest user account and
enter any password (FTP requires that you type something in the password field).
•
Be sure to select the FTP (via Internet) check box in the USB Storage Advanced
Settings screen. This option supports both downloading and uploading of files.
Note: You can enable the HTTP (via Internet) option on the Advanced
USB Storage screen to share large files. This option supports
downloading files only.
USB Storage Basic Settings
You can view or edit basic settings for the USB storage device attached to your modem
router. Select USB > Basic Settings. The following screen displays:
If you logged in to the modem router before you connected your USB device, you might not
see your USB device in the modem router screens until you log out and then log in again.
This screen includes the following fields and buttons:
•
Network Device Name. The default is \\readyshare. This is the name used to access the
USB device connected to the modem router.
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•
Folder Name. Full path of the used by the Network folder.
•
Volume Name. Volume name from the storage device (either USB drive or HDD).
•
Total/Free Space. Shows the current utilization of the storage device.
•
Share Name. You can click the name shown, or you can type it in the address field of
your Web browser.
If Not Shared is shown, then the default share has been deleted and no other share for
the root folder exists. Click the link to change this setting.
•

Read/Write Access. Shows the network folder permissions and access controls.
-
All no password allows all users to access the network folder.
-
admin uses the same password that you use to log in to the modem router.
•
Edit. You can click the Edit button to edit the Available Network folder settings. See Edit
a Network Folder on page 71.
•
Safely Remove USB Device. Click this button to safely remove the USB device attached
to your modem router. See Safely Remove USB Drive on page 74.
To access a USB device attached to the modem router USB port:
1. Select USB > Basic Settings. The following screen displays:
By default, the USB device is available to all computers on your local area network (LAN).
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2. To access your USB device, click the share name or type \\readyshare in the address field
of your Web browser.
Network/device name:
\\readyshare
Share name:
\\readyshare\USB_Storage
If you logged in to the modem router before you connected your USB device, you might not
see your USB device in the modem router screens until you log out and then log in again.
Edit a Network Folder
You can use the Edit button on either the USB Storage (Basic Settings) or USB Storage
(Advanced Settings) screen.

To edit a network folder:
1. Select USB > Advanced Settings. The USB Storage (Advanced Settings) screen
displays:
2. Click the Edit button
3. Click Apply for your changes to take effect.
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USB Storage Advanced Settings
To view or change advanced USB settings, select USB > Advanced Settings. The USB
Storage (Advanced Settings) screen displays:
You can use this screen to specify access to the USB storage device. The settings are as
follows:
•
Network Device Name. The default is readyshare. This is the name used to access the
USB device connected to the modem router from your computer.
•
Workgroup. If you are using a Windows Workgroup rather than a domain, the workgroup
name is displayed here.
Access Method
•
Network Connection. Enabled by default, this allows all users on the LAN to have
access to the USB drive.
•
HTTP. Disabled by default. If you enable this setting, you can type http://readyshare to
access the USB drive.
•
HTTP (via Internet). Disabled by default. If you enable this settings, remote users can
type http://readyshare to access the USB drive over the Internet.
•
FTP. Disabled by default.
•
FTP (via Internet). Disabled by default. If you enable this settings, remote users can
access the USB drive via FTP over the Internet.
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Available Network Folders
•
Folder Name. Full path of the Network folder.
•
Volume Name. Volume name from the storage device (either USB drive or HDD).
•
Total Free Space. The space currently available on the storage device.
•
Share Name. You can click the name shown or you can type it into the address field of
your Web browser. If Not Shared is shown, then the default share has been deleted and
no other share for the root folder exists. Click the link to change this setting.
•
Read/Write Access. Shows the permissions and access controls on the Network folder.
Selecting All no password allows all users to access the Network folder. You are
prompted to enter the same password that you use to log in to the modem router.
Create a Network Folder
You can create a network folder on the USB device that is attached to the USB port on the
rear panel of the modem router.

To create a network folder:
1. From the USB Storage (Advanced Settings) screen, click the Create Network Folder
button to open the Create a Network Folder screen:
2. Type a name in the Folder field.
• You can specify the folder’s share name, read access, and write access from All-no
password to admin.
•
The password for admin is the same one that is used to log in to the modem router .
By default it is password.
3. Click Apply so that your changes take effect.
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Safely Remove USB Drive
To unmount a USB disk drive so that no users can access it, from the USB Settings screen,
click the Safely Remove USB button. This takes the drive offline.
CAUTION:
Unmount the USB drive before physically unplugging it from the modem
router. If the USB disk is removed or a cable is pulled while data is being
written to the disk, it could result in file or disk corruption.
Media Server Settings
You can set up the modem router to work with compatible media adapters. Select USB
Storage > Media Servers to display the following screen:
Enable Media Server. If this feature is enabled, the DGN2200v3 can be located by
compatible media adapters, using the UPnP AV standard developed by Intel and its partners.
Media content on the DGN2200v3 (in the Content Directories that you specify) can then be
accessed and played by the media adapters.
Server Name. The name of the media server that is displayed on client devices. Note that
some special characters (such as " / \ [ ] : ; |= , + * ? < > ` ( ) # $ %) and 2-byte characters
cannot be used in the server name.
Content Directory. Specify the directories (folders) that the media server should scan for
media content. You can specify up to four. Click the Browse button to locate and select the
folder you want. Each directory can be limited to a certain media type. The default setting
scans for all content types. Note that some special characters (such as " \ : * ? < > | ' `) cannot
be used in the folder names.
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Approved USB Devices (Advanced USB Settings)
You can specify which USB devices are approved for use when connected to the modem
router.

To allow only approved USB devices to be accessed:
1. Select Advanced > USB Settings.
2. Click Approved Devices.
3. On the USB Drive Approved Devices screen, select the USB device from the Available USB
Devices list.
4. Click Add.
5. Select the Allow only approved devices check box.
6. Click Apply so that your change takes effect.
If you want to approve another USB device, you have to first use the Safely Remove USB
Device button to unmount the currently connected USB device. Connect the other USB
device, and then repeat this process.
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Connect to the USB Drive from a Remote Computer
To connect to the USB drive from remote computers using a Web browser, you use the
modem router’s Internet port IP address.

To connect to the modem router’s USB drive using a Web browser:
1. First, locate the Internet port IP address. You can view this in the Router Status screen.
a. Select Maintenance > Router Status.
b. Record the IP address that is listed for the Internet port. This is the IP address you
can use to connect to the modem router remotely.
2. Use a web browser to connect to the modem router by typing ftp:// and the Internet port IP
address in the address field.
For example, type ftp://10.1.65.4. If you are using Dynamic DNS, you can type the DNS
name rather than the IP address.
3. Type the name and password of the account that has access rights to the USB drive.
The directories of the USB drive that your account has access to display, for example,
share/partition1/directory1. You can now read and copy files from the USB directory.
Connect to the USB Drive with Microsoft Network Settings
You can access the USB drive from local computers on your home or office network using
Microsoft network settings. You have to be running Microsoft Windows 2000, XP, or older
versions of Windows with Microsoft networking enabled. You can use normal Explorer
operations such as dragging and dropping, opening files, or cutting and pasting files from:
•
Microsoft Windows Start menu, Run option
•
Windows Explorer
•
Network Neighborhood or My Network Place
Enabling File and Printer Sharing
Each computer’s network properties have to be set to enable network communication with
the USB drive. File and Printer Sharing for Microsoft networking have to be enabled, as
described in the following sections.
Note: In Windows 2000 and Windows XP, File and Printer Sharing is
enabled by default.
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Configuring Windows 98SE and Windows ME
The easiest way to get to your network properties is to go to your desktop, right-click
Network Neighborhood and then select Properties. File and Printer Sharing for Microsoft
Windows should be listed. If not, click Add and follow the installation prompts.
Note: If you have any questions about File and Printer Sharing, contact
Microsoft for assistance.
Configuring Windows 2000 and Windows XP
Right-click the network connection for your local area network. File and Printer Sharing for
Microsoft Windows should be listed. If not, click Install and follow the installation prompts.
USB Storage
77
7.
Advanced Settings
Con fig uring for unique s it uat ion s
7
This chapter describes the advanced features of your modem router. The information is for users
with a solid understanding of networking concepts who want to set the router up for unique
situations such as when remote access from the Internet by IP or domain name is needed.
This chapter contains the following sections:
•
WAN Setup
•
Dynamic DNS
•
LAN Setup
•
Set Up Quality of Service (QoS)
•
Advanced Wireless Settings
•
Wireless Repeating Networks
•
Remote Management
•
Static Routes
•
Universal Plug and Play
•
Traffic Meter
Note: The Advanced USB Settings feature is in Chapter 6, USB Storage.
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WAN Setup

To make changes to the WAN setup:
1. Select Advanced > WAN Setup to display the following screen:
2. Enter the LAN Setup configuration and click Apply to save your changes.
Note: The default values work for most users.
WAN Preference
Configure whether the modem router uses only one WAN port exclusively (either ADSL WAN
or Ethernet WAN) or detects automatically the WAN port to use.
Disable Port Scan and DOS Protection
The firewall protects your LAN against port scans and denial of service (DOS) attacks. This
protection should be disabled only in special circumstances.
Default DMZ Server
The default demilitarized zone (DMZ) server feature is helpful when you use online games
and video conferencing applications that are incompatible with NAT. The modem router is
programmed to recognize some of these applications and to work correctly with them, but
there are other applications that might not function well. In some cases, one local computer
can run the application correctly if that computer’s IP address is entered as the default DMZ
server.
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Note: For security reasons, you should avoid using the default DMZ server
feature. When a computer is designated as the default DMZ server,
it loses much of the protection of the firewall and is exposed to many
exploits from the Internet. If compromised, the computer can be
used to attack your network.
Incoming traffic from the Internet is usually discarded by the modem router unless the traffic
is a response to one of your local computers or a service that you have configured in the
Ports screen. Instead of discarding this traffic, you can have it forwarded to one computer on
your network. This computer is called the default DMZ server.

To assign a computer or server to be a default DMZ server:
1. In the WAN Setup screen, select the Default DMZ Server check box.
2. Type the IP address for that server and click Apply.
Respond to Ping on Internet Port
If you want the modem router to respond to a ping from the Internet, select this check box.
This should be used only as a diagnostic tool, because it allows your modem router to be
discovered, which can be a security problem. Do not select this check box unless you have a
specific reason to do so.
MTU Size (in bytes)
The normal maximum transmission unit (MTU) value for most Ethernet networks is 1500
bytes, 1492 bytes for PPPoE connections, and 1458 for PPPoA connections. For some ISPs
you might need to reduce the MTU. But this is rarely required, and should not be done unless
you are sure it is necessary for your ISP connection.
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NAT Filtering
This option determines how the router deals with inbound traffic. The Secured option
provides a secured firewall to protect the computers on LAN from attacks from the Internet,
but it might cause some Internet games, point-to-point applications, and multimedia
applications no work. The Open option, on the other hand, provides a much less secured
firewall, while it allows almost all Internet applications to work.
Disable SIP ALG
The Session Initiation Protocol (SIP) Application Level Gateway (ALG) is enabled by default
to optimize VoIP phone calls that use the SIP. The Disable SIP ALG check box allows you to
disable the SIP ALG. Disabling the SIP ALG might be useful when running certain
applications.
Dynamic DNS
If your network has a permanently assigned IP address, you can register a domain name and
have that name linked with your IP address by public Domain Name Servers (DNS).
However, if your Internet account uses a dynamically assigned IP address, you do not know
in advance what your IP address is, and the address can change frequently. In this case, use
a commercial Dynamic DNS service that lets you register your domain to its IP address and
forwards traffic directed at your domain to your frequently changing IP address.
The router has a client that can connect to a Dynamic DNS service provider. Once you have
configured your ISP account information in the router, whenever your ISP-assigned IP
address changes, your router contacts your Dynamic DNS service provider, logs in to your
account, and registers your new IP address.

To enable dynamic DNS:
1. Select Advanced > Dynamic DNS to display the following screen.
2. Access the website of one of the Dynamic DNS service providers whose names appear in
the Service Provider drop-down list, and register for an account. For example, for
dyndns.org, go to www.dyndns.org.
3. Select the Use a Dynamic DNS Service check box.
4. Select the name of your Dynamic DNS service provider.
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5. Type the host name that your Dynamic DNS service provider gave you. The Dynamic DNS
service provider might call this the domain name. If your URL is myName.dyndns.org, then
your host name is myName.
6. Type the user name for your Dynamic DNS account.
7. Type the password (or key) for your Dynamic DNS account.
8. If your Dynamic DNS provider allows the use of wildcards in resolving your URL, you can
select the Use Wildcards check box to activate this feature. For example, the wildcard
feature causes *.yourhost.dyndns.org to be aliased to the same IP address as
yourhost.dyndns.org.
9. Click Apply to save your settings.
Note: If your ISP assigns a private WAN IP address such as 192.168.x.x
or 10.x.x.x, the Dynamic DNS service does not work because private
addresses are not routed on the Internet.
LAN Setup
The LAN Setup screen allows configuration of LAN IP services such as DHCP and Routing
Information Protocol (RIP). The modem router is shipped preconfigured to use private IP
addresses on the LAN side and to act as a DHCP server. The modem router’s default LAN IP
configuration is as follows:
•
LAN IP address. 192.168.0.1
•
Subnet mask. 255.255.255.0
These addresses are part of the private address range designated by the Internet
Engineering Task Force (IETF http://www.ietf.org/) for use in private networks, and should be
suitable in most applications. If your network has a requirement to use a different IP
addressing scheme, you can make those changes in the LAN IP Setup screen.
Note: If you change the LAN IP address of the modem router while
connected through the browser, you are disconnected. To reconnect,
open a new connection to the new IP address and log in.
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
To change the LAN settings:
1. Select Advanced > LAN Setup.
2. Enter the LAN Setup configuration and click Apply to save your changes.
Note: The default DHCP and TCP/IP values work for most users.
•
Device Name. This is an abbreviated name of the modem router. You see this name
for the router in Network Explorer on Windows systems.
•
Use Auto IP. Select this check box if you want the modem router to set up the LAN IP
addresses automatically.
•
IP Address. The LAN IP address of the modem router.
•
IP Subnet Mask. The LAN subnet mask of the modem router. Combined with the IP
address, the IP subnet mask allows a device to know which other addresses are local
to it, and which have to be reached through a gateway or modem router.
•
Use Router as DHCP Server. By default, the modem router functions as a Dynamic
Host Configuration Protocol (DHCP) server, allowing it to assign IP, DNS server, and
default gateway addresses to all computers connected to the modem router’s LAN.
The assigned default gateway address is the LAN address of the router. IP addresses
are assigned to the attached computers from a pool of addresses specified in this
screen. Each pool address is tested before it is assigned to avoid duplicate addresses
on the LAN.
For most applications, the default DHCP and TCP/IP settings of the router are
satisfactory.
•
Reserved IP Addresses Setup. When you specify a reserved IP address for a
computer on the LAN, that computer always receives the same IP address each time
it accesses the router’s DHCP server. Reserved IP addresses should be assigned to
servers that require permanent IP settings.
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
To reserve an IP address:
1. Select Advanced > LAN Setup and click the Add button.
2. In the IP Address field, type the IP address to assign to the computer or server. Choose an
IP address from the router’s LAN subnet, such as 192.168.0.x.
3. Type the MAC address of the computer or server.
Tip: If the computer is already present on your network, copy its MAC
address from the Attached Devices screen and paste it here.
4. Click Apply to enter the reserved address into the table.
Note: The reserved address is not assigned until the next time the
computer contacts the router’s DHCP server. Reboot the computer
or access its IP configuration to force a DHCP release and renew.

To edit or delete a reserved address entry:
1. Select the radio button next to the reserved address that you want to edit or delete.
2. Click Edit or Delete.
Set Up Quality of Service (QoS)
Quality of Service (QoS) is an advanced feature that can be used to prioritize some types of
traffic ahead of others. The modem router can provide QoS prioritization over the wireless
link and on the Internet connection.
The modem router supports Wi-Fi Multimedia Quality of Service (WMM QoS) to prioritize
wireless voice and video traffic over the wireless link. WMM QoS provides prioritization of
wireless data packets from different applications based on four access categories: voice,
video, best effort, and background. For an application to receive the benefits of WMM QoS,
both it and the client running that application has to be WMM enabled. Legacy applications
that do not support WMM, and applications that do not require QoS, are assigned to the best
effort category, which receives a lower priority than voice and video.
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Configure QoS for Internet Access
To specify prioritization of traffic, you have to add or create a policy for the type of traffic.

To configure QoS for Internet access:
1. Select Advanced > QoS Setup.
2. Click Setup QoS rule. The QoS Priority Rule list displays:
3. To change a rule, select its radio button.
4. Scroll down to the bottom of the screen:
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5. To edit a rule, click Edit. To add a custom rule, click Add Priority Rule.
6. Click Apply to save this rule to the QoS Policy list and return to the QoS Setup screen.
7. In the QoS Setup screen, click Apply.
Advanced Wireless Settings

To configure the advanced wireless settings:
1. Select Advanced > Wireless Settings to display the following screen:
The WPS Settings section is not displayed if you selected WEP as the security option.
2. If you make changes, click Apply. Note that more settings are available in the Wireless
Settings screen. See Wireless Settings on page 35.
Note: The modem router is already configured with the optimum advance
wireless settings. Do not alter these settings unless directed by
NETGEAR support. Incorrect settings might disable the modem
router unexpectedly.
Wireless Advanced Settings
Enable Wireless Router Radio. The wireless access point of this router can be enabled or
disabled to allow wireless access. The Wireless LED on the front of the router also displays
the current status of the wireless access point to let you know if it is disabled or enabled. If it
is enabled, wireless stations can access the Internet. If it is disabled, wireless stations cannot
access the Internet.
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Enable SSID Broadcast. If this feature is enabled, the modem router broadcasts its name
(SSID) to all wireless stations. Stations that have no SSID (or a null value) can then adopt the
correct SSID for connections to this access point.
Fragmentation Threshold, CTS/RTS Threshold, and Preamble Mode. Do not change
these settings. The Fragmentation Threshold, CTS/RTS Threshold, and Preamble Mode
settings are reserved for wireless testing and advanced configuration only.
WPS Settings
Router’s PIN. The PIN number that you use on a registrar (for example, from the Network
Explorer on a Vista Windows PC) to configure the modem router’s wireless settings through
WPS. You can also find the PIN on the modem router’s product label.
Disable Router’s PIN. The PIN function might temporarily be disabled when the modem
router detects suspicious attempts to break into the modem router’s wireless settings by
using the modem router’s PIN through WPS. You can manually enable the PIN function by
clearing the Disable Router’s PIN check box.
Keep Existing Wireless Settings. By default, the Keep Existing Wireless Settings check
box is selected. This shows whether the router is in the WPS configured state.
If the Keep Existing Wireless Settings check box is not selected, adding a new wireless client
changes the router’s wireless settings to an automatically generated random SSID and
security key. NETGEAR does not recommend this. In addition, if this option is selected, some
external registrars (e.g., Network Explorer on Vista Windows) might not see the router.
Configuring the basic wireless settings from the router’s management interface selects this
option automatically.
Wireless Card Access List. By default, any wireless computer that is configured with the
correct SSID is allowed access to your wireless network. For increased security, you can
restrict access to the wireless network to allow only specific computers based on their MAC
addresses. On the Wireless Settings screen, select Setup Access List to display the
Wireless Access List screen.
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Wireless Station Access List Settings
The Wireless Stations Access List lets you restrict access to your network to a specific list of
devices based on their MAC addresses. This section explains how to set up the list.

To set up the wireless station access list:
1. On the Wireless Settings screen, click the Setup Access List button to display the
Wireless Station Access List screen:
2. Select the Turn Access Control On check box to enable access restriction by MAC
address.
3. In the Add New Station Manually section, click Add to add your computer’s MAC address so
you do not lose your wireless connection when you click Apply. If you lose your wireless
connection, you have to access the modem router from a wired computer or from a wireless
computer that is on the access control list.
4. If a wireless station that you want to add to the Trusted Wireless Stations list is connected to
the network, select it from the Available Wireless Stations list and click Add.
5. If the wireless station is not currently connected, you can enter its address manually. The
MAC address is usually printed on the wireless card, or it might appear in the modem
router’s DHCP table. The MAC address is 12 hexadecimal digits.
You can also copy and paste the MAC addresses from the modem router’s Attached
Devices screen (see View Attached Devices on page 64) into the MAC Address field. To
do this, configure each wireless computer to obtain a wireless link to the modem router.
The computer should then appear in the Attached Devices screen.
6. Click Apply to save your settings and return to the Wireless Settings screen.
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Wireless Repeating Networks
Note: If you want to use the Wireless Repeating feature, you have to go to
the Wireless Settings screen and change the wireless security
setting of the router to WEP or None, and you have to change the
Channel field to a different setting than Auto, which is the default.
For more information, see Wireless Settings on page 35.
With the modem router, you can build large bridged wireless networks that form an
IEEE 802.11n Wireless Distribution System (WDS). Using the modem router with other
access points (APs) and wireless devices, you can connect clients using their MAC
addresses rather than IP addresses. Here are some examples of wireless bridged
configurations:
•
Point-to-point bridge. The modem router communicates with another bridge-mode
wireless station. See Set Up a Point-to-Point Bridge on page 90.
•
Multi-point bridge. The modem router is the “master” for a group of bridge-mode wireless
stations. Then all traffic is sent to this master, rather than to other access points. See Set
Up a Multi-Point Bridge on page 92.
•
Repeater with wireless client association. Sends all traffic to the remote access point.
See Repeater with Wireless Client Association on page 93.
The wireless bridging and repeating feature uses the default security profile to send and
receive traffic.
Select Advanced > Wireless Repeating Function to display the following screen:
Advanced Settings
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•
Enable Wireless Repeating Function. Select this check box if you want to use the
wireless repeating function.
•
Disable Wireless Client Association. If your modem router is the repeater, selecting
this check box means that wireless clients cannot associate with it. Only LAN client
associations are allowed.
-
If you are setting up a point-to-point bridge, select this check box.
-
If you want all client traffic to go through the other access point (repeater with wireless
client association), leave this check box cleared.
•
Wireless MAC of this router. This field displays the MAC address for your modem router
for your reference. You will need to enter this MAC address in the corresponding Wireless
Repeating Function screen of the other access point you are using.
•
Wireless Repeater. If your modem router is the repeater, select this check box.
•
Repeater IP Address. If your modem router is the repeater, enter the IP address of the
other access point.
•
Base Station MAC Address. If your modem router is the repeater, enter the MAC
address for the access point that is the base station.
•
Wireless Base Station. If your modem router is the base station, select this check box.
•
Disable Wireless Client Association. If your modem router is the base station, selecting
this check box means that wireless clients cannot associate with it. Only LAN client
associations are allowed.
•
Repeater MAC Address (1 through 4). If your modem router is the base station, it can
act as the “parent” of up to 4 other access points. Enter the MAC addresses of the other
access points in these fields.
Set Up a Point-to-Point Bridge
In point-to-point bridge mode, the modem router communicates as an access point with
another bridge-mode wireless station. As a bridge, wireless client associations are disabled.
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Only wired clients can be connected. Use wireless security to protect this communication.
The following figure shows an example of point-to-point bridge mode.
Both access points (APs) are in
point-to-point bridge mode.
AP 1 (modem router)
AP 2
192.168.0.1
Switch or hub
LAN Segment 1
LAN Segment 2
Figure 13. Point-to-point bridge example

To set up a point-to-point bridge configuration:
1. Set up your modem router (AP 1) on LAN Segment 1 in point-to-point bridge mode.
a. In the Wireless Repeating Function screen, select the Enable Wireless Repeating
Function check box.
b. Select either the Wireless Repeater or Wireless Base Station radio button.
c. Select the corresponding Disable Wireless Client Association check box.
d. Enter the MAC address for the other access point in the bridge. Depending on your
selection in step a, use either the Base Station MAC Address field or the Repeater
MAC Address 1 field.
e. Click Apply.
2. Set up the other access point (AP 2) on LAN Segment 2 in point-to-point bridge mode.
If your modem router is the repeater, then set up AP 2 as the base station; otherwise set
up AP 2 as the repeater.
3. Set up both access points and verify that they use the same SSID, channel, authentication
mode, if any, and WEP security settings if security is in use.
4. Disable the DHCP server on AP 2. AP 1 will then be the DHCP server.
5. Verify connectivity across LAN Segment 1 and LAN Segment 2. A computer on either LAN
segment should be able to connect to the Internet or share files and printers of any other
PCs or servers connected to LAN Segment 1 or LAN Segment 2.
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Set Up a Multi-Point Bridge
Multi-point bridge mode allows a router to bridge to multiple peer access points
simultaneously. Wireless client associations are disabled. Only wired clients can be
connected.
DGND3800
AP 1
Point-to-point
bridge mode
AP 3
192.168.0.1
AP 2
Hub or switch
LAN Segment 1
LAN Segment 3
Hub or switch
LAN Segment 2
Figure 14. Multi-point bridge example
Multi-point bridge mode configuration includes the following steps:

•
Set up the modem router for wireless repeating as the base station, and specify the MAC
addresses of the access points that are repeaters.
•
Set up the other access points for wireless repeating as repeaters, and specify the MAC
address of the modem router as the base station.
•
Use wireless security to protect this traffic.
To set up the multi-point bridge configuration:
In this example, the modem router is AP 1 on LAN Segment 1 because it is in a central
location.
1. Set up your modem router to be the base station in the bridge.
a. In the Wireless Repeating Function screen for your modem router, select the Enable
Wireless Repeating Function check box.
b. Select the Wireless Base Station radio button.
c. Select the corresponding Disable Wireless Client Association check box.
d. Enter the MAC address for the other access points in the bridge in the Repeater
MAC Address 1 and Repeater MAC Address 2 fields.
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e. Click Apply.
2. Set up AP 2 and AP 3 to be wireless repeaters.
a. In the Wireless Repeating Function screen for AP 2 and AP 3, select the Enable
Wireless Repeating Function check box.
b. Select the Wireless Repeater radio button.
c. Select the corresponding Disable Wireless Client Association check box.
d. Enter the MAC addresses for your modem router in the Base Station MAC Address
field.
e. Click Apply.
3. Disable the DHCP server on AP 2 and AP 3. AP 1 will then be the DHCP server.
4. Verify the following for all access points:
• The modem router and other access points operate in the same LAN network address
range as the LAN devices.
•
Only one access point, your modem router in Figure 14, Multi-point bridge example, is
set up as the base station. The others are set up as repeaters.
•
All access points, including your modem router, are on the same LAN. That is, all the
access point LAN IP addresses are in the same network.
•
If you are using DHCP, all access points should be set as DHCP clients. This setting
is Obtain an IP address automatically (DHCP Client) in the Basic Settings screen.
•
All access points, including your modem router, use the same SSID, channel,
authentication mode, if any, and WEP security settings if security is in use.
5. Verify connectivity across the LANs. A computer on any LAN segment should be able to
connect to the Internet or share files and printers with any other PCs or servers connected
to any of the three LAN segments.
Note: Wireless stations configured as in Figure 13 on page 91 cannot
connect to the modem router or access points. If you want wireless
stations to access any LAN segment, use additional access points in
any LAN segment.
Repeater with Wireless Client Association
In the repeater mode with wireless client association, your modem router sends all traffic to a
base station access point. You can set up the modem router as either the base station
(parent) or as the repeater (child) access point.
Note that the following restrictions apply:
•
You do not have the option of disabling client associations with this modem router.
•
You cannot configure a sequence of parent-child APs. You are limited to only one parent
access point, although if your modem router is the parent access point, it can connect
with up to four child access points.
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The following figure shows an example of a repeater mode configuration.
Wireless computer
associated
with AP 1
Wireless computer
associated
with AP 2
AP 2 in repeater mode
192.168.0.1
Wireless PC
associated
with AP 3
AP 1 (parent AP in repeater mode)
DGND3800
AP 3 in repeater mode
Figure 15. Repeater example

To set up a repeater with wireless client association:
In this example, the modem router is the base station, but you can set it up to be the repeater
with another AP as the base station if you want.
1. Set up your modem router to be the base station.
a. In the Wireless Repeating Function screen for your modem router, select the Enable
Wireless Repeating Function check box.
b. Select the Wireless Base Station radio button.
c. Clear the corresponding Disable Wireless Client Association check box (make
sure it is not selected).
d. Enter the MAC addresses for AP 2 and AP 3 in the Repeater MAC Address 1 and
Repeater MAC Address 2 field.
e. Click Apply.
2. Set up AP 2 and AP 3 to be wireless repeaters.
a. In the Wireless Repeating Function screen for AP 2 and AP 3, select the Enable
Wireless Repeating Function check box.
b. Select the Wireless Repeater radio button.
c. Clear the corresponding Disable Wireless Client Association check box (make
sure it is not selected).
d. Enter the MAC addresses for your modem router in the Base Station MAC Address
field.
e. Click Apply.
3. Verify the following for all access points:
• Each access point operates in the same LAN network address range as the LAN
devices.
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•
The access points are on the same LAN. That is, the LAN IP addresses for the
access points are in the same network.
•
If you are using DHCP, access point devices are set to Obtain an IP address
automatically (DHCP Client) in the Basic Settings screen.
•
Access point devices use the same SSID, channel, authentication mode, and
encryption.
Verify connectivity across the LANs. A computer on any LAN segment should be able to
connect to the Internet or share files and printers with any other PCs or servers connected to
any of the three WLAN segments.
Remote Management
The Remote Management screen lets you allow a user or users on the Internet to configure,
upgrade, and check the status of your modem router.

To configure remote management:
1. Select Advanced > Remote Management to display this screen:
2. Select the Turn Remote Management On check box.
3. Specify the external addresses that can access remote management. For security, restrict
access to as few external IP addresses as practical:
• To allow access from a single IP address on the Internet, select Only This Computer
and enter the IP address that is allowed access.
•
To allow access from a range of IP addresses on the Internet, select IP Address and
enter a beginning and ending IP address to define the allowed range.
•
To allow access from any IP address on the Internet, select Everyone.
4. Specify the port number to be used for accessing the router interface.
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Web browser access usually uses the standard HTTP service port 80. For greater
security, you can change it so the remote router interface uses a custom port by entering
that number in the field provided. Choose a number between 1024 and 65535, but do not
use the number of any common service port. The default is 8080, which is a common
alternate for HTTP.
5. Click Apply to save your changes.
To access your modem router from the Internet, type your modem router’s WAN IP
address in your browser’s Address field, followed by a colon (:) and the custom port
number.
For example, if your external address is 134.177.0.123 at port number 8080, enter the
following in your browser:
http://134.177.0.123:8080
The http:// has to be included in the address.
Static Routes
Static routes provide additional routing information to your router. Under normal
circumstances, the router has adequate routing information after it has been configured for
Internet access, and you do not need to configure additional static routes. You have to
configure static routes only for unusual cases such as multiple routers or multiple IP subnets
located on your network.
Static Route Example
As an example of when a static route is needed, consider the following case:
•
Your primary Internet access is through a cable modem to an ISP.
•
You have an ISDN router on your home network for connecting to the company where
you are employed. This router’s address on your LAN is 192.168.0.100.
•
Your company’s network address is 134.177.0.0.
When you first configured your router, two implicit static routes were created. A default route
was created with your ISP as the modem router, and a second static route was created to
your local network for all 192.168.0.x addresses. With this configuration, if you attempt to
access a device on the 134.177.0.0 network, your router forwards your request to the ISP.
The ISP forwards your request to the company where you are employed, and the request is
likely to be denied by the company’s firewall.
In this case you have to define a static route, telling your router that 134.177.0.0 should be
accessed through the ISDN router at 192.168.0.100. The static route setup would look like
Figure 3, Fill in the following fields:.
In this example:
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•
The Destination IP Address and IP Subnet Mask fields specify that this static route
applies to all 134.177.x.x addresses.
•
The Gateway IP Address field specifies that all traffic for these addresses are to be
forwarded to the ISDN router at 192.168.0.100.
•
The value in the Metric field represents the number of routers between your network and
the destination. This is a direct connection, so it can be set to the minimum value of 2.
•
The Private check box is selected only as a precautionary security measure in case RIP
is activated.
Static Routes

To configure static routes:
1. Select Advanced > Static Routes to display the following screen:
2. Click Add to open the following screen.
3. Fill in the following fields:
• Route Name. Enter a route name for this static route. This name is for identification
purpose only.
•
Private. Select this check box if you want to limit access to the LAN only. The static
route is not reported in RIP.
•
Active. Select this check box to make this route effective.
•
Destination IP Address. Enter the IP address of the final destination.
•
IP Subnet Mask. Enter the IP subnet mask for this destination. If the destination is a
single host, type 255.255.255.255.
•
Gateway IP Address. Enter the gateway IP address, which has to be a router on the
same LAN segment as the modem router.
•
Metric. Enter a number between 2 and 15. This represents the number of routers
between your network and the destination. Usually, a setting of 2 or 3 works.
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4. Click Apply to save your changes. The Static Routes table is updated to show the new
entry.
Universal Plug and Play
Universal Plug and Play (UPnP) helps devices, such as Internet appliances and computers,
access the network and connect to other devices as needed. UPnP devices can
automatically discover the services from other registered UPnP devices on the network.

To configure Universal Plug and Play:
1. Select Advanced > UPnP to display the following screen:
2. Fill in the settings as follows:
• Turn UPnP On. UPnP can be enabled or disabled for automatic device configuration.
The default setting for UPnP is enabled. If UPnP is disabled, the modem router does
not allow any device to automatically control the resources, such as port forwarding
(mapping), of the modem router.
•
Advertisement Period. The advertisement period is how often the modem router
advertises (broadcasts) its UPnP information. This value can range from 1 to 1440
minutes. The default period is 30 minutes. Shorter durations ensure that control
points have current device status at the expense of additional network traffic. Longer
durations might compromise the freshness of the device status but can significantly
reduce network traffic.
•
Advertisement Time To Live. This is measured in hops (steps) for each UPnP
packet sent. Hops are the steps allowed to propagate for each UPnP advertisement
before it disappears. The number of hops can range from 1 to 255. The default value
is 4 hops, which works for most home networks. If you notice that some devices are
not being updated or reached correctly, you might need to increase this value a little.
•
UPnP Portmap Table. The UPnP Portmap Table displays the IP address of each
UPnP device that is currently accessing the modem router and which ports (internal
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and external) that device has opened. The UPnP Portmap Table also displays what
type of port is opened and if that port is still active for each IP address.
3. To save, cancel your changes, or refresh the table:
• To save the new settings to the modem router, click Apply.
•
To disregard any unsaved changes, click Cancel.
•
To update the portmap table and to show the active ports that are currently opened by
UPnP devices, click Refresh.
Traffic Meter
Traffic metering allows you to monitor the volume of Internet traffic passing through your
modem router’s Internet port. With the Traffic Meter utility, you can set limits for traffic volume,
set a monthly limit, and get a live update of traffic usage.

To monitor traffic on your router:
1. Select Advanced > Traffic Meter.
2. Select the Enable Traffic Meter check box.
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3. If you would like to record and restrict the volume of Internet traffic, select the Traffic
volume control by radio button. You can select one of the following options for controlling
the traffic volume:
• No Limit. No restriction is applied when the traffic limit is reached.
•
Download only. The restriction is applied to incoming traffic only.
•
Both Directions. The restriction is applied to both incoming and outgoing traffic.
4. You can limit the amount of data traffic allowed per month:
• By specifying how many Mbytes per month are allowed.
•
By specifying how many hours of traffic are allowed.
5. Set the Traffic Counter to begin at a specific time and date.
6. Set up traffic control to issue a warning message before the monthly limit of Mbytes or hours
is reached. You can select one of the following to occur when the limit is attained:
• The Internet LED flashes green or amber.
•
The Internet connection is disconnected and disabled.
7. Set up Internet Traffic Statistics to monitor the data traffic.
8. Click the Traffic Status button if you want a live update on Internet traffic status on your
router.
9. Click Apply to save your settings.
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100
8.
Virtual Private Networking
S et ti ng up secure encr ypte d c om mun ic at ion s
8
This chapter describes how to use the virtual private networking (VPN) features of the modem
router. VPN communications paths are called tunnels. VPN tunnels provide secure, encrypted
communications between your local network and a remote network or computer. The
DGND3800B can terminate up to five VPNs.
This chapter is organized as follows:
•
Overview of VPN Configuration
•
Plan a VPN
•
VPN Tunnel Configuration
•
Set Up a Client-to-Gateway VPN Configuration
•
Set Up a Gateway-to-Gateway VPN Configuration
•
VPN Tunnel Control
•
Set Up VPN Tunnels in Special Circumstances
For additional information, see Appendix B, VPN Configuration.
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Overview of VPN Configuration
Two common scenarios for VPN tunnels are between a remote computer and a network
gateway, and between two or more network gateways. The modem router supports both
types. It supports up to five concurrent tunnels.
Client-to-Gateway VPN Tunnels
Client-to-gateway VPN tunnels provide secure access from a remote computer, such as a
telecommuter connecting to an office network.
VPN tunnel
Computer with
ProSafe VPN
client software
Figure 16. Telecommuter VPN tunnel
A VPN client access allows a remote computer to connect to your network from any location
on the Internet. The remote computer is one tunnel endpoint, running the VPN client
software. The modem router on your network is the other tunnel endpoint. See Set Up a
Client-to-Gateway VPN Configuration on page 105 for information about how to set up this
configuration.
Gateway-to-Gateway VPN Tunnels
Gateway-to-gateway VPN tunnels provide secure access between networks, such as a
branch or home office and a main office.
Gateway 1
(home)
VPN tunnel
Figure 17. VPN Tunnel between networks
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A VPN between two or more NETGEAR VPN-enabled routers is a good way to connect
branch or home offices and business partners over the Internet. VPN tunnels also enable
access to network resources across the Internet. In this case, use gateways on each end of
the tunnel to form the VPN tunnel endpoints. See Set Up a Gateway-to-Gateway VPN
Configuration on page 116 for information about how to set up this configuration.
Plan a VPN
When you set up a VPN, it is helpful to plan the network configuration and record the
configuration parameters on a worksheet:
Table 3. VPN tunnel configuration worksheet
Parameter
Value to Be
Entered
Field Selection
Connection Name
N/A
Pre-Shared Key
N/A
Secure Association
N/A
Main Mode
Manual Keys
Perfect Forward Secrecy
N/A
Enabled
Disabled
Encryption Protocol
N/A
DES
3DES
Authentication Protocol
N/A
MD5
SHA-1
Diffie-Hellman (DH) Group
N/A
Group 1
Group 2
Key Life in seconds
N/A
IKE Life Time in seconds
N/A
VPN Endpoint
Local IPSecID
LAN IP Address
Subnet Mask
FQDN or Gateway
IP (WAN IP
Address
To set up a VPN connection, you have to configure each endpoint with specific identification
and connection information describing the other endpoint. You have to configure the
outbound VPN settings on one end to match the inbound VPN settings on other end, and
vice versa.
This set of configuration information defines a security association (SA) between the two
VPN endpoints. When planning your VPN, you should make a few choices first:
•
Will the local end be any device on the LAN, a portion of the local network (as defined by
a subnet or by a range of IP addresses), or a single computer?
•
Will the remote end be any device on the remote LAN, a portion of the remote network
(as defined by a subnet or by a range of IP addresses), or a single computer?
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•
Will either endpoint use fully qualified domain names (FQDNs)? FQDNs supplied by
Dynamic DNS providers (see Use a Fully Qualified Domain Name (FQDN) on page 154)
can allow a VPN endpoint with a dynamic IP address to initiate or respond to a tunnel
request. Otherwise, the side using a dynamic IP address has to always be the initiator.
•
Which method will you use to configure your VPN tunnels?
-
The VPN Wizard using VPNC defaults (see the following table)
-
The typical automated Internet Key Exchange (IKE) setup (see Use Auto Policy to
Configure VPN Tunnels on page 126)
-
A manual keying setup in which you have to specify each phase of the connection
(see Use Manual Policy to Configure VPN Tunnels on page 133)
Table 4. Parameters recommended by the VPNC and used in the VPN Wizard
•
•
Parameter
Factory Default Setting
Secure Association
Main Mode
Authentication Method
Pre-Shared Key
Encryption Method
3DES
Authentication Protocol
SHA-1
Diffie-Hellman (DH) Group
Group 2 (1024 bit)
Key Life
8 hours
IKE Life Time
1 hour
What level of IPSec VPN encryption will you use?
-
DES. The Data Encryption Standard (DES) processes input data that is 64 bits wide,
encrypting these values using a 56-bit key. Faster but less secure than 3DES.
-
3DES. Triple DES achieves a higher level of security by encrypting the data three
times using DES with three different, unrelated keys.
What level of authentication will you use?
-
MDS. 128 bits, faster but less secure.
-
SHA-1. 160 bits, slower but more secure.
VPN Tunnel Configuration
There are two tunnel configurations and three ways to configure them:
•
Use the VPN Wizard to configure a VPN tunnel (recommended for most situations):
-
See Set Up a Client-to-Gateway VPN Configuration on page 105.
-
See Set Up a Gateway-to-Gateway VPN Configuration on page 116.
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•
When the VPN Wizard and its VPNC defaults (see Table 4 on page 104) are not
appropriate for your special circumstances, but you want to automate the Internet Key
Exchange (IKE) setup, see Use Auto Policy to Configure VPN Tunnels on page 126.
•
When the VPN Wizard and its VPNC defaults (see Table 4 on page 104) are not
appropriate for your special circumstances and you have to specify each phase of the
connection, see Use Manual Policy to Configure VPN Tunnels on page 133. You
manually enter all the authentication and key parameters. You have more control over the
process; however, the process is more complex, and there are more opportunities for
errors or configuration mismatches between your N600 Wireless Dual Band Gigabit
VDSL2 Modem Router DGND3800B and the corresponding VPN endpoint gateway or
client workstation.
Set Up a Client-to-Gateway VPN Configuration
Setting up a VPN between a remote computer running the NETGEAR ProSafe VPN client
and a network gateway involves two steps, described in the following sections:
•
Step 1: Configure the Client-to-Gateway VPN Tunnel on page 105 describes how to use
the VPN Wizard to configure the VPN tunnel between the remote computer and network
gateway.
•
Step 2: Configure the NETGEAR ProSafe VPN Client on page 108 shows how to
configure the NETGEAR ProSafe VPN client endpoint.
VPN tunnel
0.0.0.0
IP: 192.168.3.1
22.23.24.25
Computer with
ProSafe VPN
client software
Figure 18. Client-to-gateway VPN tunnel
Step 1: Configure the Client-to-Gateway VPN Tunnel
This section describes using the VPN Wizard to set up the VPN tunnel using the VPNC
default parameters listed in Table 4 on page 104. If you have special requirements not
covered by these VPNC-recommended parameters, see Set Up VPN Tunnels in Special
Circumstances on page 125 for information about how to set up the VPN tunnel.
The following worksheet identifies the parameters used in this procedure. For a blank
worksheet, see Plan a VPN on page 103.
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Table 5. VPN tunnel configuration worksheet

Parameter
Value to Be
Entered
Field Selection
Connection Name
RoadWarrior
N/A
Pre-Shared Key
12345678
N/A
Secure Association
N/A
Main Mode
Manual Keys
Perfect Forward secrecy
N/A
Enabled
Disabled
Encryption Protocol
N/A
DES
3DES
Authentication Protocol
N/A
MD5
SHA-1
Diffie-Hellman (DH) Group
N/A
Group 1
Group 2
Key Life in seconds
28800 (8 hours)
N/A
IKE Life Time in seconds
3600 (1 hour)
N/A
VPN Endpoint
Local IPSecID
LAN IP Address
Subnet Mask
FQDN or Gateway
IP (WAN IP
Address)
Client
toGateway
N/A
N/A
Dynamic
Gateway
toClient
192.168.3.1
255.255.255.0
22.23.24.25
To configure a client-to-gateway VPN tunnel using the VPN Wizard:
1. Select Advanced > VPN Wizard.
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2. Click Next to proceed.
3. Fill in the Connection Name and pre-shared key fields.
The connection name is for convenience and does not affect how the VPN tunnel
functions.
4. Select the radio button for the type of target end point, and click Next.
5. Enter the remote IP address, and click Next.
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The Summary screen displays:
Note: To view the VPNC-recommended authentication and encryption
settings used by the VPN Wizard, click the here link.
6. Click Done on the Summary screen. The VPN Policies screen displays, showing that the
new tunnel is enabled:
To view or modify the tunnel settings, select its radio button and click Edit.
Note: See Use Auto Policy to Configure VPN Tunnels on page 126 for
information about how to enable the IKE keep-alive capability on an
existing VPN tunnel.
Step 2: Configure the NETGEAR ProSafe VPN Client
This section describes how to configure the NETGEAR ProSafe VPN client on a remote
computer. These instructions assume that the computer running the client has a dynamically
assigned IP address.
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The computer has to have the NETGEAR ProSafe VPN Client program installed, which
supports IPSec. Go to the NETGEAR website (http://www.netgear.com) for information about
how to purchase the NETGEAR ProSafe VPN client.
Note: Before installing the NETGEAR ProSafe VPN Client software, be
sure to turn off any virus protection or firewall software you might be
running on your computer. You might need to insert your Windows
CD to complete the installation.

To configure the NETGEAR ProSafe VPN client:
1. Install the NETGEAR ProSafe VPN client on the remote computer, and then reboot.
a. Install the IPSec component. You might have the option to install either the VPN
adapter or the IPSec component or both. The VPN adapter is not necessary.
If you do not have a modem or dial-up adapter installed in your computer, you might
see the warning message stating, “The NETGEAR ProSafe VPN Component requires
at least one dial-up adapter be installed.” You can disregard this message.
b. Reboot the remote computer.
The ProSafe icon (
) is in the system tray.
c. Double-click the ProSafe icon to open the Security Policy Editor.
2. Add a new connection.
a. Run the NETGEAR ProSafe Security Policy Editor program, and, using Table 5 on
page 106, create a VPN connection.
b. From the Edit menu of the Security Policy Editor, select Add, and then click
Connection.
A New Connection listing appears in the list of policies.
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c. Rename the new connection so that it matches the Connection Name field in the
VPN Settings screen of the modem router on LAN A. Choose connection names that
make sense to the people using and administering the VPN.
Note: In this example, the connection name used on the client side of the
VPN tunnel is togw_a, and it does not have to match the
RoadWarrior connection name used on the gateway side of the VPN
tunnel because connection names are irrelevant to how the VPN
tunnel functions.
d. Enter the following settings:
• Connection Security. Select Secure.
•
ID Type. Select IP Subnet.
•
Subnet. In this example, type 192.168.3.1 as the network address of the modem
router.
•
Mask. Enter 255.255.255.0 as the LAN subnet mask of the modem router.
•
Protocol. Select All to allow all traffic through the VPN tunnel.
e. Select the Connect using Secure Gateway Tunnel check box.
f.
In the ID Type drop-down list, select IP Address.
g. Enter the public WAN IP address of the modem router in the field directly below the
ID Type drop-down list. In this example, 22.23.24.25 is used.
The resulting connection settings are shown in the figure that follows.
3. Configure the security policy in the NETGEAR ProSafe VPN Client software:
a. In the Network Security Policy list, expand the new connection by double-clicking its
name or clicking the + symbol. My Identity and Security Policy subheadings appear
below the connection name.
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b. Click the Security Policy subheading to view the Security Policy settings.
Figure 19. Security Policy settings, Client-to-Gateway A
c. In the Select Phase 1 Negotiation Mode section of the screen, select the Main Mode
radio button.
4. Configure the VPN client identity.
In this step, you provide information about the remote VPN client computer. You have to
provide the pre-shared key that you configured in the modem router and either a fixed IP
address or a fixed virtual IP address of the VPN client computer.
a. In the Network Security Policy list on the left side of the Security Policy Editor window,
click My Identity.
b. In the Select Certificate drop-down list, select None.
c. In the ID Type drop-down list, select IP Address. If you are using a virtual fixed IP
address, enter this address in the Internal Network IP Address field. Otherwise,
leave this field empty.
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d. In the Internet Interface section of the screen, select the adapter that you use to
access the Internet. If you have a dial-up Internet account, in the Name list, select
PPP Adapter. If you have a dedicated cable or ADSL line, select your Ethernet
adapter. If you will be switching between adapters or if you have only one adapter,
select Any.
e. In the My Identity section of the screen, click the Pre-Shared Key button. The
Pre-Shared Key screen displays:
f.
Click Enter Key. Enter the modem router pre-shared key, and then click OK. In this
example, 12345678 is entered, though asterisks are displayed in the field. This field
is case-sensitive.
5. Configure the VPN client authentication proposal.
In this step, you provide the type of encryption (DES or 3DES) to be used for this
connection. This selection has to match your selection in the modem router configuration.
a. In the Network Security Policy list on the left side of the Security Policy Editor window,
expand the Security Policy heading by double-clicking its name or clicking the +
symbol.
b. Expand the Authentication subheading by double-clicking its name or clicking the +
symbol. Then select Proposal 1 below Authentication.
c. In the Authentication Method drop-down list, select Pre-Shared key.
d. In the Encrypt Alg drop-down list, select the type of encryption that is configured for
the encryption protocol in the modem router, as listed in Table 3 on page 103. This
example uses Triple DES.
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e. In the Hash Alg drop-down list, select SHA-1.
f.
In the SA Life drop-down list, select Unspecified.
g. In the Key Group drop-down list, select Diffie-Hellman Group 2.
6. Configure the VPN client key exchange proposal.
In this step, you provide the type of encryption (DES or 3DES) to be used for this
connection. This selection has to match your selection in the modem router configuration.
a. Expand the Key Exchange subheading by double-clicking its name or clicking the +
symbol. Then select Proposal 1 below Key Exchange.
b. In the SA Life drop-down list, select Unspecified.
c. In the Compression drop-down list, select None.
d. Select the Encapsulation Protocol (ESP) check box.
e. In the Encrypt Alg drop-down list, select the type of encryption that is configured for
the encryption protocol in the modem router, as listed in Table 3 on page 103. This
example uses Triple DES.
f.
In the Hash Alg drop-down list, select SHA-1.
g. In the Encapsulation drop-down list, select Tunnel.
h. Leave the Authentication Protocol (AH) check box cleared.
7. Save the VPN client settings.
In the Security Policy Editor window, select File > Save.
After you have configured and saved the VPN client information, your computer
automatically opens the VPN connection when you attempt to access any IP addresses
in the range of the remote VPN router’s LAN.
8. Check the VPN connection.
To check the VPN connection, you can initiate a request from the remote computer to the
modem router’s network by using the Connect option in the NETGEAR ProSafe menu
bar. The NETGEAR ProSafe client reports the results of the attempt to connect. Since the
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remote computer has a dynamically assigned WAN IP address, it has to initiate the
request.
To perform a ping test using our example, start from the remote computer:
a. Establish an Internet connection from the computer.
b. On the Windows taskbar, click the Start button, and then select Run.
c. Type ping -t 192.168.3.1, and then click OK.
This causes a continuous ping to be sent to the first modem router. After between
several seconds and 2 minutes, the ping response should change from timed out
to reply.
Once the connection is established, you can open a browser on the computer and enter
the LAN IP address of the remote gateway. After a short wait, you should see the login
screen of the modem router (unless another computer is already logged in to the modem
router).
You can view information about the progress and status of the VPN client connection by
opening the NETGEAR ProSafe Log Viewer.
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To launch this function, click the Windows Start button, then select Programs >
NETGEAR ProSafe VPN Client > Log Viewer. The VPN Status/Log screen for a
successful connection is shown in the following figure:
Note: Use the active VPN tunnel information and pings to determine
whether a failed connection is due to the VPN tunnel or some
reason outside the VPN tunnel.
The Connection Monitor screen for this connection is shown in the following figure:
In this example you can see these settings:
•
The modem router has a GW address (public IP WAN address) of 22.23.24.25.
•
The modem router has a remote address (LAN IP address) of 192.168.3.1.
•
The VPN client computer has a local address (dynamically assigned address) of
192.168.2.2.
While the connection is being established, the Connection Name field in this screen displays
SA before the name of the connection. When the connection is successful, the SA changes
to the yellow key symbol shown in the previous figure.
While your computer is connected to a remote LAN through a VPN, you might not have
normal Internet access. If this is the case, you have to close the VPN connection to have
normal Internet access.
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Set Up a Gateway-to-Gateway VPN Configuration
This section describes how to use the VPN Wizard to set up the VPN tunnel using the VPNC
default parameters listed in Table 4 on page 104. If you have special requirements not
covered by these VPNC-recommended parameters, see Set Up VPN Tunnels in Special
Circumstances on page 125 for information about how to set up the VPN tunnel.
Gateway 1
Gateway 2
IP: 192.168.0.1
VPN tunnel
IP:192.168.3.1
14.15.16.17
22.23.24.25
Figure 20. Gateway-to-gateway VPN tunnel
Follow this procedure to configure a gateway-to-gateway VPN tunnel using the VPN Wizard.
Set the LAN IPs on each modem router to different subnets and configure each correctly for
the Internet. The subsequent examples assume the settings shown in the following table.
Table 6. Gateway-to-gateway VPN tunnel configuration worksheet
Parameter
Value to Enter
Field Selection
Connection Name
GtoGr
N/A
Pre-Shared Key
12345678
N/A
Secure Association
N/A
Main Mode
Manual Keys
Perfect Forward Secrecy
N/A
Enabled
Disabled
Encryption Protocol
N/A
DES
3DES
Authentication Protocol
N/A
MD5
SHA-1
Diffie-Hellman (DH) Group
N/A
Group 1
Group 2
Key Life in seconds
28800 (8 hours)
N/A
IKE Life Time in seconds
3600 (1 hour)
N/A
VPN Endpoint
Local IPSecID
LAN IP Address
Subnet Mask
FQDN or Gateway IP
(WAN IP Address)
Gateway_A
GW_A
192.168.0.1
255.255.255.0
14.15.16.17
Gateway_B
GW_B
192.168.3.1
255.255.255.0
22.23.24.25
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Note: The LAN IP address ranges of each VPN endpoint has to be
different. The connection fails if both are using the NETGEAR
default address range of 192.168.0.x.

To configure a gateway-to-gateway VPN tunnel using the VPN Wizard:
1. Log in to Gateway A on LAN A. Select Advanced > VPN Wizard. Click Next, and the
Step 1 of 3 screen displays.
2. Fill in the Connection Name and pre-shared key fields. Select the radio button for the type of
target endpoint, and click Next, and the Step 2 of 3 screen displays.
3. Fill in the IP address or FQDN for the target VPN endpoint WAN connection, and click Next.
and the Step 3 of 3 screen displays.
4. Fill in the IP Address and Subnet Mask fields for the target endpoint that can use this
tunnel, and click Next.
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The VPN Wizard Summary screen displays:
To view the VPNC-recommended authentication and encryption settings used by the
VPN Wizard, click the here link.
5. Click Done on the Summary screen.
The VPN Policies screen displays, showing that the new tunnel is enabled.
Note: See Use Auto Policy to Configure VPN Tunnels on page 126 for
information about how to enable the IKE keep-alive capability on an
existing VPN tunnel.
6. Repeat these steps for the gateway on LAN B, and pay special attention to the following
network settings:
• WAN IP of the remote VPN gateway (for example, 14.15.16.17)
•
LAN IP settings of the remote VPN gateway:
-
IP address (for example, 192.168.0.1)
-
Subnet mask (for example, 255.255.255.0)
-
Pre-shared key (for example, 12345678)
7. Use the VPN Status screen to activate the VPN tunnel by performing the following steps:
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Note: The VPN Status screen is only one of three ways to active a VPN
tunnel. See Activate a VPN Tunnel on page 120 for information
about the other ways.
a. Select Advanced > VPN Status. The VPN Status/Log screen displays:
b. Click the VPN Status button to display the Current VPN Tunnels (SAs) screen:
c. Click Connect for the VPN tunnel you want to activate. View the VPN Status/Log
screen to verify that the tunnel is connected.
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VPN Tunnel Control
Activate a VPN Tunnel
There are three ways to activate a VPN tunnel:
•
Use the VPN Status screen.
•
Ping the remote endpoint.
•
Start using the VPN tunnel.
See Use Auto Policy to Configure VPN Tunnels on page 126 for information about how to
enable the IKE keep-alive capability on an existing VPN tunnel.

To use the VPN Status screen to activate a VPN tunnel:
1. Select Advanced > VPN Status. The VPN Status/Log screen displays:
2. Click VPN Status to display the Current VPN Tunnels (SAs) screen:
3. Click Connect for the VPN tunnel that you want to activate.
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Activate the VPN Tunnel by Pinging the Remote Endpoint
This section uses 192.168.3.1 for a sample remote endpoint LAN IP address. To activate the
VPN tunnel by pinging the remote endpoint (for example, 192.168.3.1), perform the following
steps depending on whether your configuration is client-to-gateway or gateway-to-gateway:
•

Client-to-gateway configuration. To check the VPN connection, you can initiate a
request from the remote computer to the modem router’s network by using the Connect
option in the NETGEAR ProSafe menu bar. The NETGEAR ProSafe client reports the
results of the attempt to connect. Since the remote computer has a dynamically assigned
WAN IP address, it has to initiate the request.
To perform a ping test using our example, start from the remote computer:
a. Establish an Internet connection from the computer.
b. On the Windows taskbar, click the Start button, and then select Run.
c. Type ping -t 192.168.3.1, and then click OK.
Running a ping test
to the LAN from the computer
This causes a continuous ping to be sent to the first N600 Wireless Dual Band Gigabit
VDSL2 Modem Router DGND3800B. Within 2 minutes, the ping response should
change from timed out to reply.
Note: You can use Ctrl-C to stop the pinging.
Once the connection is established, you can open a browser on the computer and enter
the LAN IP address of the remote modem router. After a short wait, you should see the
login screen of the modem router (unless another computer already has the modem
router management interface open).
•
Gateway-to-gateway configuration. Test the VPN tunnel by pinging the remote network
from a computer attached to Gateway A (the modem router).
a. Open a command prompt (for example, Start > Run > cmd).
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b. Type ping 192.168.3.1.
Note: The pings might fail the first time. If they do, then try the pings a
second time.
Start Using a VPN Tunnel to Activate It
To use a VPN tunnel, use a web browser to go to a URL whose IP address or range is
covered by the policy for that VPN tunnel.
Verify the Status of a VPN Tunnel

To use the VPN Status screen to determine the status of a VPN tunnel:
1. Select Advanced > VPN Status to display the VPN Status/Log screen.
This log shows the details of recent VPN activity, including the building of the VPN tunnel.
If there is a problem with the VPN tunnel, refer to the log for information about what might
be the cause of the problem.
•
Click Refresh to see the most recent entries.
•
Click Clear Log to delete all log entries.
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2. On the VPN Status/Log screen, click VPN Status to display the Current VPN Tunnels (SAs)
screen.
This table lists the following data for each active VPN tunnel.
•
SPI. Each SA has a unique SPI (security parameter index) for traffic in each direction.
For manual key exchange, the SPI is specified in the policy definition. For automatic
key exchange, the SPI is generated by the IKE protocol.
•
Policy Name. The VPN policy associated with this SA.
•
Remote Endpoint. The IP address on the remote VPN endpoint.
•
Action. Either a Drop or a Connect button.
•
SLifeTime (Secs). The remaining soft lifetime for this security association (SA) in
seconds. When the soft lifetime becomes 0 (zero), the SA is renegotiated.
•
HLifeTime (Secs). The remaining hard lifetime for this SA in seconds. When the hard
lifetime becomes 0 (zero), the SA is terminated. (It is reestablished if required.)
Sometimes you need to deactivate a VPN tunnel for testing purposes. You can deactivate a
VPN tunnel from two places:
•
Policy table on VPN Policies screen
•
VPN Status screen
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
To deactivate a VPN tunnel:
1. Select Advanced > VPN Policies to display the VPN Policies screen:
2. In the Policy Table, clear the Enable check box for the VPN tunnel that you want to
deactivate, and then click Apply. (To reactivate the tunnel, select the Enable check box, and
then click Apply.)

To deactivate a VPN tunnel:
1. Select Advanced > VPN Policies to display the VPN Policies screen:
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2. Click VPN Status. The Current VPN Tunnels (SAs) screen displays:
3. Click Drop for the VPN tunnel that you want to deactivate.

To delete a VPN tunnel:
1. Select Advanced > VPN Policies to display the VPN Policies screen.
2. In the Policy Table, select the radio button for the VPN tunnel to be deleted, and then
click Delete.
Set Up VPN Tunnels in Special Circumstances
When the VPN Wizard and its VPNC defaults (see Table 4 on page 104) are not appropriate
for your circumstances, use one of these alternatives:
•
Auto Policy. For a typical automated Internet Key Exchange (IKE) setup, see Use Auto
Policy to Configure VPN Tunnels on page 126. Auto Policy uses the IKE protocol to
define the authentication scheme and automatically generate the encryption keys.
•
Manual Policy. For a manual keying setup in which you have to specify each phase of
the connection, see Use Manual Policy to Configure VPN Tunnels on page 133. Manual
Policy does not use IKE. Rather, you manually enter all the authentication and key
parameters. You have more control over the process; however, the process is more
complex, and there are more opportunities for errors or configuration mismatches
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between your modem router and the corresponding VPN endpoint gateway or client
workstation.
Use Auto Policy to Configure VPN Tunnels
You need to configure matching VPN settings on both VPN endpoints. The outbound VPN
settings on one end has to match to the inbound VPN settings on other end, and vice versa.
For an example of using Auto Policy, see Example of Using Auto Policy on page 130.
Configure VPN Network Connection Parameters
All VPN tunnels on the modem router require that you configure several network parameters.
This section describes those parameters and how to access them.
The most common configuration scenarios use IKE to manage the authentication and
encryption keys. The IKE protocol performs negotiations between the two VPN endpoints to
automatically generate and update the required encryption parameters.
Select Advanced > VPN Policies, and then click the Add Auto Policy button to display the
VPN - Auto Policy screen:
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The DGND3800B VPN tunnel network connection fields are defined in the following table.
Table 7. VPN - Auto Policy screen settings
Fields and Settings
Description
General
Policy Name
Enter a unique name. This name is not supplied to the remote VPN
endpoint. It is used only to help you manage the policies.
Remote VPN
Endpoint
• The remote VPN endpoint has to have this VPN’s gateway address
entered as its remote VPN endpoint.
• If the remote endpoint has a dynamic IP address, select Dynamic
IP Address. No address data input is required. You can set up
multiple remote dynamic IP policies, but only one such policy can be
enabled at a time. Otherwise, select an option (IP address or
domain name) and enter the address of the remote VPN endpoint to
which you want to connect.
IKE Keep Alive
• If you want to ensure that a connection is kept open, or, if that is not
possible, that it is quickly reestablished when disconnected, select
this check box.
• The ping IP address has to be associated with the remote endpoint.
The remote LAN address has to be used. This IP address is pinged
periodically to generate traffic for the VPN tunnel. The remote
keep-alive IP address has to be covered by the remote LAN IP range
and has to correspond to a device that can respond to ping. The
range should be made as narrow as possible to meet this objective.
Subnet Mask
The network mask.
Local LAN
Single/Start IP
The remote VPN
Address
endpoint has to
have these IP
addresses entered
as its remote
addresses.
Finish IP Address
•
Remote LAN
Single Computer - no Subnet. Select this option if there is no LAN
(only a single computer) at the remote endpoint. If this option is
selected, no additional data is required. The typical application is a
computer running the VPN client at the remote end.
IP Address
The remote VPN
endpoint has to
have these IP
addresses entered Single/Start IP
Address
as its local
addresses.
Enter the IP address for a single address, or the starting address
for an address range. A single address setting is used when you
want to make a single server on your LAN available to remote users.
A range has to be an address range used on your LAN.
• Any. The remote VPN endpoint can be at any IP address.
For an address range, enter the finish IP address. This has to be an
address range used on your LAN.
• Enter an IP address that is on the remote LAN. You can use this
setting when you want to access a server on the remote LAN.
• For a range of addresses, enter the starting IP address. This has to
be an address range used on the remote LAN.
• Any. Any outgoing traffic from the computers in the Local IP fields
triggers an attempted VPN connection to the remote VPN endpoint.
Be sure you want this option before selecting it.
Finish IP Address
Enter the finish IP address for a range of addresses. This has to be an
address range used on the remote LAN.
Subnet Mask
Enter the network mask.
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Table 7. VPN - Auto Policy screen settings (Continued)
Fields and Settings
Description
IKE
Direction
This setting is used when the router determines if the IKE policy
matches the current traffic. Select an option.
• Responder only. Incoming connections are allowed, but outgoing
connections are blocked.
• Initiator and Responder. Both incoming and outgoing connections
are allowed.
Exchange Mode
Ensure that the remote VPN endpoint is set to use Main Mode.
Diffie-Hellman
(DH) Group
The Diffie-Hellman algorithm is used when keys are exchanged. The
DH Group setting determines the bit size used in the exchange. This
value has to match the value used on the remote VPN gateway.
Local Identity Type Select an option to match the Remote Identity Type setting on the
remote VPN endpoint.
• WAN IP Address. Your Internet IP address.
• Fully Qualified Domain Name. Your domain name.
• Fully Qualified User Name. Your name, email address, or other
ID.
Local Identity Data Enter the data for the local identity type that you selected. (If WAN IP
Address is selected, no input is required.)
Parameters
Remote Identity
Type
Select the option that matches the Local Identity Type setting on the
remote VPN endpoint.
• IP Address. The Internet IP address of the remote VPN endpoint.
• Fully Qualified Domain Name. The domain name of the remote
VPN endpoint.
• Fully Qualified User Name. The name, email address, or other ID
of the remote VPN endpoint.
Remote Identity
Data
Enter the data for the remote identity type that you selected. If IP
Address is selected, no input is required.
Encryption
Algorithm
The encryption algorithm used for both IKE and IPSec. This setting has
to match the setting used on the remote VPN gateway. DES and 3DES
are supported.
• DES. The Data Encryption Standard (DES) processes input data
that is 64 bits wide, encrypting these values using a 56-bit key. Faster
but less secure than 3DES.
• 3DES. (Triple DES) achieves a higher level of security by encrypting
the data three times using DES with three different, unrelated keys.
Authentication
Algorithm
The authentication algorithm used for both IKE and IPSec. This setting
has to match the setting used on the remote VPN gateway. Auto, MD5,
and SHA-1 are supported. Auto negotiates with the remote VPN
endpoint and is not available in responder-only mode.
• MD5. 128 bits, faster but less secure.
• SHA-1. 160 bits, slower but more secure. This is the default.
Pre-shared Key
The key has to be entered both here and on the remote VPN gateway.
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Table 7. VPN - Auto Policy screen settings (Continued)
Fields and Settings
Description
Parameters
(Continued)
The time interval before the SA (security association) expires. (It is
automatically reestablished as required.) While using a short time
period (or data amount) increases security, it also degrades
performance. It is common to use periods over an hour (3600 seconds)
for the SA life-time. This setting applies to both IKE and IPSec SAs.
SA Life Time
Enable IPSec PFS • If this check box is selected, security is enhanced by ensuring that
(Perfect Forward
the key is changed at regular intervals. Also, even if one key is
Secrecy)
broken, subsequent keys are no easier to break. (Each key has no
relationship to the previous key.)
• This setting applies to both IKE and IPSec SAs. When configuring
the remote endpoint to match this setting, you might have to specify
the key group used. For this device, the key group is the same as the
DH Group setting in the IKE section.
General
Policy Name
Enter a unique name to identify this policy. This name is not supplied to
the remote VPN endpoint. It is used only to help you manage the
policies.
Remote VPN
Endpoint
• The remote VPN endpoint has to have this VPN gateway’s address
entered as its remote VPN endpoint.
• If the remote endpoint has a dynamic IP address, select Dynamic
IP address. No address data input is required. You can set up
multiple remote dynamic IP policies, but only one such policy can be
enabled at a time. Otherwise, select an option (IP address or
domain name) and enter the address of the remote VPN endpoint to
which you want to connect.
IKE Keep Alive
• If you want to ensure that a connection is kept open, or, if that is not
possible, that it is quickly reestablished when disconnected, select
this check box.
• The ping IP address has to be associated with the remote endpoint.
The remote LAN address has to be used. This IP address is pinged
periodically to generate traffic for the VPN tunnel. The remote
keep-alive IP address has to be covered by the remote LAN IP range
and has to correspond to a device that can respond to ping. The
range should be made as narrow as possible to meet this objective.
Local LAN
Subnet Mask
The remote VPN
Single/Start IP
endpoint has to
Address
have these IP
addresses entered
as its remote
addresses.
Enter the network mask.
Enter the IP address for a single address, or the starting address
for an address range. A single address setting is used when you
want to make a single server on your LAN available to remote users.
A range has to be an address range used on your LAN.
• Any. The remote VPN endpoint might be at any IP address.
•
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Example of Using Auto Policy
The following settings are assumed for this example:
Table 8. Gateway-to-gateway VPN tunnel configuration worksheet

Parameter
Value to Be
Entered
Field Selection
Connection Name
GtoG
N/A
Pre-Shared Key
12345678
N/A
Secure Association
N/A
Main Mode
Manual Keys
Perfect Forward secrecy
N/A
Enabled
Disabled
Encryption Protocol
N/A
DES
3DES
Authentication Protocol
N/A
MD5
SHA-1
Diffie-Hellman (DH) Group
N/A
Group 1
Group 2
Key Life in seconds
28800 (8 hours)
N/A
IKE Life Time in seconds
3600 (1 hour)
N/A
VPN Endpoint
Local IPSecID
LAN IP Address
Subnet Mask
FQDN or Gateway
IP (WAN IP
Address
Gateway_A
GW_A
192.168.0.1
255.255.255.0
14.15.16.17
Gateway_B
GW_B
192.168.3.1
255.255.255.0
22.23.24.25
To use this auto policy example:
1. Set the LAN IPs on each router to different subnets and configure each correctly for the
Internet.
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2. Select Advanced > VPN Policies and click the Add Auto Policy button. The VPN - Auto
Policy screen displays:
3. Enter these policy settings:
Auto Policy Field
General
Description
Policy Name
GtoG
Remote VPN Endpoint
Address Type
Fixed
Remote VPN Endpoint
Address Data
22.23.24.25
Local LAN
Remote LAN
Use the default settings.
IP Address
Select Subnet address from the drop-down list.
Start IP Address
192.168.3.1
Subnet Mask
255.255.255.0
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Auto Policy Field
IKE
Parameters
Description
Direction
Initiator and Responder
Exchange Mode
Main Mode
Diffie-Hellman (DH) Group
Group 2 (1024 Bit)
Local Identity Type
Use the default setting.
Remote Identity Type
Use the default setting.
Encryption Algorithm
3DES
Authentication Algorithm
MD5
Pre-shared Key
12345678
4. Click Apply. The VPN Policies screen displays:
5. Repeat these steps for the N600 Wireless Dual Band Gigabit VDSL2 Modem Router
DGND3800B on LAN B. Pay special attention to the following network settings:
• General, Remote Address Data (for example, 14.15.16.17)
•
Remote LAN, Start IP Address
-
IP Address (for example, 192.168.0.1)
-
Subnet Mask (for example, 255.255.255.0)
-
Pre-shared Key (for example, 12345678)
6. Use the VPN Status screen to activate the VPN tunnel:
Note: The VPN Status screen is only one of three ways to active a VPN
tunnel. See Activate a VPN Tunnel on page 120 for information
about the other ways.
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a. Select Advanced > VPN Status to display the VPN Status/Log screen. Then click
VPN Status to display the Current VPN Tunnels (SAs) screen:
b. Click Connect for the VPN tunnel that you want to activate. Review the VPN
Status/Log screen (Figure a on page 119) to verify that the tunnel is connected.
Use Manual Policy to Configure VPN Tunnels
As an alternative to IKE, you can use manual keying, in which you have to specify each
phase of the connection. A manual VPN policy requires all settings for the VPN tunnel to be
manually input at each end (both VPN endpoints).
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Select Advanced > VPN Policies, and then click the Add Manual Policy radio button to
display the VPN - Manual Policy screen:
The following table explains the fields in the VPN - Manual Policy screen.
Table 9. VPN Manual Policy fields and settings
Fields and Settings
General
The modem router VPN
tunnel network
connection fields.
Description
Policy Name
Enter a unique name to identify this policy. This name is not
supplied to the remote VPN endpoint. It is used only to help you
manage the policies.
Remote VPN
Endpoint
• The remote VPN endpoint has to have this VPN’s gateway
address entered as its remote VPN endpoint.
• If the remote endpoint has a dynamic IP address, select
Dynamic IP Address. No address data input is required. You
can set up multiple remote dynamic IP policies, but only one
such policy can be enabled at a time. Otherwise, select an
option (IP address or domain name) and enter the address of
the remote VPN endpoint to which you want to connect.
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Table 9. VPN Manual Policy fields and settings (Continued)
Fields and Settings
Description
Local LAN IP Address
Subnet Mask
Enter the network mask.
The remote VPN
endpoint has to have
these IP addresses
entered as its remote
addresses.
Single computer Select this option if there is no LAN (only a single computer) at the
- no Subnet
remote endpoint. If this option is selected, no additional data is
required.
Single/Start IP
Address
• The IP address for a single address, or the starting address for
an address range used on the LAN. If you want to make a single
server on your LAN available to remote users, use a single
address settings.
• Any. The remote VPN endpoint can be at any IP address.
Finish IP
Address
For an address range, enter the finish IP address. This has to be
an address range used on your LAN.
Subnet Mask
Enter the network mask.
Remote LAN IP Address
IP Address
The remote VPN
endpoint has to have
these IP addresses
entered as its local
addresses.
Single computer - no Subnet. Select this option if there is no
LAN (only a single computer) at the remote endpoint. If this option
is selected, no additional data is required. The typical application is
a computer running the VPN client at the remote end.
Single/Start IP
Address
• Enter an IP address on the remote LAN. You can use this
setting to access a server.
• For a range of addresses, enter the starting IP address. This
has to be an address range used on the remote LAN.
• Any. Any outgoing traffic from specified Local IP computers
triggers an attempted VPN connection to the remote VPN
endpoint. Be sure you want this option before selecting it.
Finish IP
Address
Enter the finish IP address for a range of addresses. This has to be
an address range used on the remote LAN.
Subnet Mask
Enter the network mask.
ESP Configuration
SPI
ESP (encapsulating
security payload)
provides security for the
payload (data) sent
through the VPN tunnel.
Enter the required security policy indexes (SPIs). Each policy has
to have unique SPIs. These settings have to match the remote
VPN endpoint. The in setting here has to match the out setting on
the remote VPN endpoint, and the out setting here has to match
the in setting on the remote VPN endpoint.
Encryption
Select an encryption algorithm, and enter the key in the field
provided. For 3DES, the keys should be 24 ASCII characters, and
for DES, the keys should be 8 ASCII characters.
• DES. The Data Encryption Standard (DES) processes input
data that is 64 bits wide, encrypting these values using a 56-bit
key. Faster but less secure than 3DES.
• 3DES. (Triple DES) achieves a higher level of security by
encrypting the data three times using DES with three different,
unrelated keys.
Authentication
Select an authentication method.
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9.
Troubleshooting
Diag nosing and solving problem s
9
This chapter provides information to help you diagnose and solve problems you might have with
your modem router. If you do not find the solution here, check the NETGEAR support site at
http://support.netgear.com for product and contact information.
This chapter contains the following sections:
•
Troubleshooting with the LEDs
•
No ISP Connection
•
TCP/IP Network Not Responding
•
Cannot Log In
•
Changes Not Saved
•
Firmware Needs to Be Reloaded
•
Incorrect Date or Time
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Troubleshooting with the LEDs
When you turn the power on, the Power, LAN, Wireless, DSL, and Internet LEDs should light
as described here. If they do not, refer to the sections that follow for help.
1. When power is first applied, the Power LED lights.
2. After approximately 10 seconds, other LEDs light as follows:
a. The LAN ports LED lights when any local port is connected.
b. The 2.4 GHz and 5 GHz Wireless LEDs light.
c. The DSL LED lights when there is a link through the ADSL phone lines.
d. The Internet LED lights to indicate a connection to the ISP.
WPS On/Off button
Wireless On/Off button
USB port
Internet
DSL
5 GHZ Wireless
2.4 GHz Wireless
USB
LAN ports
Power
Figure 21. Front panel LEDs
Power LED Is Off
If the Power and other LEDs are off when your router is turned on:
•
Check that the power cord is correctly connected to your router and the power supply
adapter is correctly connected to a functioning power outlet.
•
Check that you are using the 12V DC power adapter supplied by NETGEAR for this
product.
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If the error persists, you could have a hardware problem and should contact NETGEAR
technical support.
Power LED Is Red
When the router is turned on, it performs a power-on self-test. If the Power LED turns red
after a few seconds or at any other time during normal operation, there is a fault within the
router.
If the Power LED turns red to indicate a router fault, turn the power off and on to see if the
modem router recovers. If the power LED is still red 1 minute after power-up:
•
Turn the power off and on one more time to see if the modem router recovers.
•
Clear the router’s configuration to factory defaults as explained in Factory Settings on
page 147. This sets the router’s IP address to 192.168.0.1.
If the error persists, you could have a hardware problem and should contact NETGEAR
technical support.
LAN LED Is Off
If the LAN LED does not light when the Ethernet connection is made, check the following:
•
The Ethernet cable connections are secure at the modem router and at the hub or
workstation.
•
The power is turned on to the connected hub or workstation.
Wireless LEDs Are Off
If the 2.4 GHz and 5 GHz Wireless LEDs do not light, the radios might be turned off. Press
the Wireless On/Off button on the front panel to turn the radios back on.
DSL or Internet LED Is Off
If the DSL or Internet LED does not light, check to make sure that you are using the correct
cable. When connecting the ADSL or Ethernet WAN port, use the cables that were supplied
with the modem router. If the DSL or Internet LED is still off, this could mean that there is no
ADSL or fiber/cable modem service or the cable connected to the ADSL or Ethernet WAN
port is bad.
See also DSL LED Is Off on page 139.
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
No ISP Connection
If your router cannot access the Internet, first check the ADSL connection, and then check
the WAN TCP/IP connections. See Figure 21, Front panel LEDs on page 137 for the location
of the LEDs.
ADSL Link
First determine whether you have an ADSL link with the service provider. The state of this
connection is indicated by the DSL LED.
DSL LED Is Green or Blinking Green
You have a good ADSL connection. The service provider has connected your line correctly,
and your wiring is correct.
DSL LED Is Blinking Amber
Your modem router is attempting to make an ADSL connection with the service provider. The
LED should turn green within several minutes.
If the DSL LED does not turn green, disconnect all telephones on the line. If this solves the
problem, reconnect the telephones one at a time and use a microfilter on each telephone as
described in ADSL Microfilters on page 13. If you connect the microfilters correctly, you
should be able to connect all your telephones.
If disconnecting telephones does not result in a green DSL LED, there might be a problem
with your wiring. If the telephone company has tested the ADSL signal at your network
interface device (NID), you might have poor-quality wiring in your house.
DSL LED Is Off
First disconnect all telephones on the line. If this solves the problem, reconnect the
telephones one at a time and use a microfilter on each telephone. If the microfilters are
connected correctly, you should be able to connect all your telephones.
If disconnecting telephones does not result in a green DSL LED, check for the following:
•
Check that the telephone company has made the connection to your line and tested it.
•
Verify that you are connected to the correct telephone line. If you have more than one
phone line, be sure that you are connected to the line with the ADSL service. It could be
necessary to use a swapper if your ADSL signal is on pins 1 and 4 or the RJ-11 jack. The
modem router uses pins 2 and 3.
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Internet LED Is Red
If the Internet LED is red, the device could not connect to the Internet. Verify the following:
•
Check that your login credentials are correct. See Log In to the N600 Modem Router on
page 18 for more information.
•
Check that the information you entered on the Basic Settings screen is correct. See
Manual Setup (Basic Settings) on page 22.
•
Check with your ISP to verify that the multiplexing method, VPI, and VCI settings on the
ADSL settings screen are correct.
•
Find out if the ISP is having a problem. If it is, wait until that problem is cleared up and try
again.
Cannot Obtain an Internet IP Address
If your modem router cannot access the Internet, and your Internet LED is green or blinking
green, check whether the modem router can obtain an Internet IP address from the ISP.
Unless you have been assigned a static IP address, your modem router has to request an IP
address from the ISP.
 You can determine whether the request was successful as follows:
1. Access the router menus at http://192.168.0.1 and log in.
2. Under Maintenance, select Router Status and check that an IP address shows for the WAN
port. If 0.0.0.0 shows, your modem router has not obtained an IP address from your ISP.
If your router cannot obtain an IP address from the ISP, the problem might be one of the
following:
•
If you have selected a login program, the service name, user name, or password might be
incorrect. See Debug PPPoE or PPPoA on page 141.
•
Your ISP might check for your computer’s host name. Assign the computer host name of
your ISP account to the modem router in the browser-based Setup Wizard. See Setup
Wizard on page 21 for more information.
•
Your ISP allows only one Ethernet MAC address to connect to the Internet, and might
check for your computer’s MAC address. In this case, do one of the following:
-
Inform your ISP that you have bought a new network device and ask them to use the
router’s MAC address.
-
Configure your router to spoof your computer’s MAC address through the Basic
Settings screen. See Manual Setup (Basic Settings) on page 22.
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Debug PPPoE or PPPoA

Debug the PPPoE or PPPoA connection as follows:
1. Access the router menus at http://192.168.0.1 and log in.
2. Under Maintenance, select Router Status.
3. Click the Connection Status button.
4. If all of the steps indicate OK, your PPPoE or PPPoA connection is working.
5. If any of the steps indicate Failed, you can attempt to reconnect by clicking Connect.
The modem router continues to attempt to connect indefinitely. If you do not connect after
several minutes, check that the service name, user name, and password you are using
are correct. Also check with your ISP to be sure that there is no problem with their
service.
Note: Unless you connect manually, the modem router does not
authenticate with PPPoE or PPPoA until data is transmitted to the
network.
Cannot Load an Internet Web Page
If your modem router can obtain an IP address, but your browser cannot load any Internet
web pages:
•
Your computer might not recognize any DNS server addresses.
A DNS server is a host on the Internet that translates Internet names (such as www
addresses) to numeric IP addresses. Typically your ISP provides the addresses of one or
two DNS servers for your use. If you entered a DNS address during the modem router’s
configuration, reboot your computer, and verify the DNS address. Alternately, you can
configure your computer manually with DNS addresses, as explained in your operating
system documentation.
•
Your computer might not have the modem router configured as its TCP/IP modem router.
If your computer obtains its information from the modem router by DHCP, reboot the
computer, and verify the modem router address.
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TCP/IP Network Not Responding
Most TCP/IP terminal devices and routers have a ping utility for sending an echo request
packet to the designated device. The device responds with an echo reply to tell whether a
TCP/IP network is responding to requests.
Test the LAN Path to Your Modem Router
You can ping the router from your computer to verify that the LAN path to your router is set up
correctly.

To ping the router from a Computer running Windows 95 or later:
1. From the Windows task bar, click the Start button, and select Run.
2. In the field provided, type ping followed by the IP address of the router, as in this example:
ping 192.168.0.1
3. Click OK.
You should see a message like this one:
Pinging <IP address> with 32 bytes of data
If the path is working, you see this message:
Reply from < IP address >: bytes=32 time=NN ms TTL=xxx
If the path is not working, you see this message:
Request timed out
If the path is not functioning correctly, you could have one of the following problems:
•
•
Wrong physical connections
-
Make sure that the LAN port LED is on. If the LED is off, follow the instructions in
LAN LED Is Off on page 138.
-
Check that the corresponding link LEDs are on for your network interface card and
for the hub ports (if any) that are connected to your workstation and router.
Wrong network configuration
-
Verify that the Ethernet card driver software and TCP/IP software are both
installed and configured on your computer or workstation.
-
Verify that the IP address for your router and your workstation are correct and that
the addresses are on the same subnet.
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Test the Path from Your Computer to a Remote Device
After you verify that the LAN path works correctly, test the path from your computer to a
remote device. In the Windows Run screen, type:
ping -n 10 IP address
where IP address is the IP address of a remote device such as your ISP’s DNS server.
If the path is functioning correctly, replies as described in Test the LAN Path to Your Modem
Router on page 142 display. If you do not receive replies:
•
Check that your computer has the IP address of your router listed as the default modem
router. If the IP configuration of your computer is assigned by DHCP, this information is
not visible in your computer’s Network Control Panel. Verify that the IP address of the
router is listed as the default modem router.
•
Check that the network address of your computer (the portion of the IP address specified
by the netmask) is different from the network address of the remote device.
•
Check that your cable or ADSL modem is connected and functioning.
•
If your ISP assigned a host name to your computer, enter that host name as the account
name in the Basic Settings screen.
•
Your ISP could be rejecting the Ethernet MAC addresses of all but one of your
computers. Many broadband ISPs restrict access by allowing traffic only from the MAC
address of your modem, but some additionally restrict access to the MAC address of a
single computer connected to that modem. In this case, configure your router to clone or
spoof the MAC address from the authorized computer.
Cannot Log In
If you cannot log in to the modem router from a computer on your local network, check the
following:
•
The router is plugged in and it is on.
•
You are using the correct login information. The login name is admin, and the password
is password. Make sure that Caps Lock is off when you enter this information.
•
If you cannot connect wirelessly, try an Ethernet connection and view the router wireless
settings and set up your wireless computer with corresponding wireless settings.
•
If you are using an Ethernet-connected computer, check the Ethernet connection
between the computer and the router. The LAN LED for the port you are using on the
router should light up to show your connection.
•
Your computer’s IP address is on the same subnet as the router. If you are using the
recommended addressing scheme, your computer’s address should be in the range
192.168.0.2 to 192.168.0.254.
•
If the computer IP address is 169.254.x.x, recent versions of Windows and Mac OS
generate and assign an IP address when the computer cannot reach a DHCP server. The
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autogenerated addresses are in the range 169.254.x.x. If your IP address is in this range,
check the connection from the computer to the router and reboot your computer.
•
If your router’s IP address was changed and you do not know the current IP address,
clear the router’s configuration to factory defaults as explained in Factory Settings on
page 147. This sets the router’s IP address to 192.168.0.1.
•
Make sure that your browser has Java, JavaScript, or ActiveX enabled. If you are using
Internet Explorer, click Refresh to be sure that the Java applet is loaded.
•
Try closing the browser and relaunching it.
Changes Not Saved
If the router does not save the changes you make in the router interface, check the following:
•
When entering configuration settings, always click the Apply button before moving to
another screen or tab, or your changes are lost.
•
Click the Refresh or Reload button in the web browser. The changes might have
occurred, but the old settings might be in the web browser’s cache.
Firmware Needs to Be Reloaded
When you attempt to connect to the Internet, the browser might display a message similar to
the following one telling you that you need to reload the router’s firmware. This means a
problem has been detected with the router’s firmware.
Figure 22. Reload firmware

To reload the firmware:
1. If you already have the firmware file on your computer, go directly to step 2. If you do not
have the firmware file on your computer, obtain the firmware from the NETGEAR
support site at http://www.netgear.com/support through another working Internet
connection.
2. Click Browse.
3. Navigate to the firmware file.
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4. Click Upgrade. A progress bar displays. The reload takes about 5 minutes to complete.
When the firmware recovery is complete, the login screen displays so you can log in.
Incorrect Date or Time
Select Security > Schedule to display the current date and time. The modem router uses the
Network Time Protocol (NTP) to obtain the current time from one of several network time
servers on the Internet. Each entry in the log is stamped with the date and time of day.
Problems with the date and time function can include the following:
•
Date shown is January 1, 2000. This means the router has not yet successfully reached a
network time server. Check that your Internet access is configured correctly. If you have
just completed configuring the router, wait at least 5 minutes, and check the date and
time again.
•
Time is off by one hour. The router does not automatically sense daylight savings time. In
the Schedule screen, select the Adjust for Daylight Savings Time check box.
Troubleshooting
145
A.
Supplemental Information
This appendix includes the factory default settings and technical specifications for the
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B, and
instructions for wall-mounting the unit.
This appendix contains the following sections:
•
Factory Settings
•
Technical Specifications
146
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Factory Settings
You can return the modem router to its factory settings. On the bottom of the modem router,
use the end of a paper clip or some other similar object to press and hold the Restore
Factory Settings button for at least 7 seconds. The modem router resets and returns to
the factory settings. Your device returns to the factory configuration settings shown in the
following table.
Table 10. Factory settings description
Feature
Default Behavior
Router Login
User Login URL
http://www.routerlogin.net or http://www.routerlogin.com
User Name (case-sensitive)
admin
Login Password (case-sensitive)
password
Internet Connection
WAN MAC Address
Use default address
WAN MTU Size
1492
Port Speed
AutoSense
Local Network (LAN)
Lan IP
192.168.0.1
Subnet Mask
255.255.255.0
RIP Direction
None
RIP Version
Disabled
RIP Authentication
None
DHCP Server
Enabled
DHCP Starting IP Address
192.168.0.2
DHCP Ending IP Address
192.168.0.254
DMZ
Disabled
Time Zone
GMT
Time Zone Adjusted for Daylight Saving
Time
Disabled
SNMP
Disabled
Supplemental Information
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Table 10. Factory settings description (Continued)
Feature
Default Behavior
Firewall
Inbound (communications coming in from Disabled (except traffic on port 80, the HTTP port)
the Internet)
Outbound (communications going out to
the Internet)
Enabled (all)
Source MAC filtering
Disabled
Wireless
Wireless Communication
Enabled
Wi-Fi Network Name (SSID)
Can be found on the label on the bottom of the unit.
Wireless security
Can be found on the label on the bottom of the unit.
Broadcast SSID
Enabled
Transmission Speed
Auto1
Country/Region
United States (in North America; otherwise, varies by
region)
RF Channel
Auto
Operating Mode
Up to 145 Mbps
Data Rate
Best
Output Power
Full
Access Point
Enabled
Authentication Type
Pre-Shared Key
Wireless Card Access List
All wireless stations allowed
1. Maximum wireless signal rate derived from IEEE Standard 802.11 specifications. Actual throughput can
vary. Network conditions and environmental factors, including volume of network traffic, building materials
and construction, and network overhead, lower actual data throughput rate.
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Technical Specifications
Table 11. Technical specifications description
Feature
Specification
Data and routing
protocols
TCP/IP, RIP-1, RIP-2, DHCP, PPPoE or PPPoA, RFC 1483 Bridged or Routed
Ethernet, and RFC 1577 Classical IP over ATM
Power adapter
North America: 120V, 60 Hz, input
Europe: 230V, 50 Hz, input
All regions output: 12V AC @ 2.5A output:
Dimensions
6.80 in. x 5.03 in. x 1.28 in. (172.7 mm x 127.7 mm x 32.5 mm)
Weight
0.61 lbs (0.275 kg)
Operating temperature
0° to 40° C
Operating humidity
10% to 90% relative humidity, noncondensing
Storage temperature
–20° to 70° C
Storage humidity
5 to 95% relative humidity, noncondensing
Meets requirements of
FCC Part 15 Class B; VCCI Class B; EN 55 022 (CISPR 22), Class B
LAN
10BASE-T or 100BASE-Tx, RJ-45 (Gigabit Ethernet)
WAN
ADSL, Dual RJ-11, pins 2 and 3
T1.413, G.DMT
RJ-45 WAN port (Gigabit Ethernet)
(32º to 104º F)
(-4º to 158º F)
Supplemental Information
149
B.
VPN Configuration
Case study on how to set up a VPN
B
The DGND3800B can terminate up to five VPNs. This appendix is a case study on how to
configure a secure IPSec VPN tunnel from your modem router to a FVL328. This case study
follows the VPN Consortium interoperability profile guidelines (found at
http://www.vpnc.org/InteropProfiles/Interop-01.html).
The following topics are discussed:
•
Configuration Profile
•
Modem Router with FQDN to Gateway B
•
Configuration Summary (Telecommuter Example)
•
Set Up Client-to-Gateway VPN (Telecommuter Example)
•
Monitoring the VPN Tunnel (Telecommuter Example)
Configuration Profile
The configuration in this appendix follows the addressing and configuration mechanics
defined by the VPN Consortium. Gather necessary information before you begin
configuration. Verify that the firmware is up to date, and that you have all the addresses and
parameters to be set on both sides. Check that there are no firewall restrictions.
Table 12. Wireless modem router to Gateway B profile summary
VPN Consortium Scenario
Scenario 1 (Identity Using Preshared Secrets)
Type of VPN
LAN-to-LAN or gateway-to-gateway (not client-to-gateway)
Security scheme:
IKE with pre-shared secret/key (not certificate based)
IP addressing:
Gateway A
Static IP address
Gateway B
Static IP address
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
172.23.9.0/24
10.506.0/24
Gateway A
(DGND3800)
Gateway B
LAN IP
10.5.6.1
WAN IP
14.15.16.17
Internet
WAN IP
22.23.24.25
LAN IP
172.23.9.1
Figure 23. VPNC example, network interface addressing
Step-by-Step Configuration

To configure a VPN tunnel:
1. Use the VPN Wizard to configure Gateway A (DGND3800B) for a gateway-to-gateway
tunnel (see Set Up a Gateway-to-Gateway VPN Configuration on page 116), being
certain to use appropriate network addresses for the environment.
The LAN addresses used in this example are as follows:
Unit
WAN IP
LAN IP
LAN Subnet Mask
DGND3800B
14.15.16.17
10.5.6.1
255.255.255.0
FVL328
22.13.24.25
172.23.9.1
255.255.255.0
a. For the connection name, enter toGW_B.
b. For the remote WAN’s IP address, enter 22.23.24.25.
c. Enter the following:
• IP Address. 172.23.9.1
•
Subnet Mask. 255.255.255.0
d. In the Summary screen, click Done.
2. Use the VPN Wizard to configure the Gateway B for a gateway-to-gateway tunnel (see Set
Up a Gateway-to-Gateway VPN Configuration on page 116), being certain to use
appropriate network addresses for the environment.
a. For the connection name, enter toGW_A.
b. For the remote WAN’s IP address, enter 14.15.16.17.
c. Enter the following:
• IP Address. 10.5.6.1
•
Subnet Mask. 255.255.255.0
d. In the Summary screen, click Done.
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
3. On the Gateway B router menu, under VPN, select IKE Policies, and click the Edit button
to display the IKE Policy Configuration screen:
toGW_A
22.23.24.25
14.15.16.17
4. On Gateway B router menu, under VPN, select VPN Policies, and click the Edit button to
display the VPN - Auto Policy screen:
toGW_A
toGW_A
toGW_A
toGW_A
14.15.16.17
172 23
9
1
10
5
6
5. Test the VPN tunnel by pinging the remote network from a computer attached to Gateway A
(modem router).
a. Open the command prompt (select Start > Run > cmd).
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
b. Type ping 172.23.9.
If the pings fail the first time, try the pings a second time.
Modem Router with FQDN to Gateway B
This section is a case study on how to configure a VPN tunnel from your modem router to a
gateway using a fully qualified domain name (FQDN) to resolve the public address of one or
both routers. This case study follows the VPN Consortium interoperability profile guidelines
(found at http://www.vpnc.org/InteropProfiles/Interop-01.html).
Configuration Profile
The configuration in this section follows the addressing and configuration mechanics defined
by the VPN Consortium. Gather the necessary information before you begin configuration.
Verify that the firmware is up to date, and that you have all the addresses and parameters to
be set on both sides. Check that there are no firewall restrictions.
172.23.9.0/24
10.506.0/24
Gateway A
(DGND3700)
Gateway B
LAN IP
10.5.6.1
WAN IP
example.org
(FQDN)
Internet
WAN IP
example2.org
(FQDN)
LAN IP
172.23.9.1
Figure 24. VPNC example, network interface addressing
Table 13. Wireless modem router with FQDN to Gateway B profile summary
VPN Consortium Scenario
Scenario 1
Type of VPN
LAN-to-LAN or gateway-to-gateway (not client-to-gateway)
Security scheme:
IKE with pre-shared secret/key (not certificate based)
IP addressing:
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Table 13. Wireless modem router with FQDN to Gateway B profile summary (Continued)
VPN Consortium Scenario
Scenario 1
Gateway A
Fully qualified domain name (FQDN)
Gateway B
FQDN
Use a Fully Qualified Domain Name (FQDN)
Many ISPs provide connectivity to their customers using dynamic instead of static IP
addressing. This means that a user’s IP address does not remain constant over time, which
presents a challenge for gateways attempting to establish VPN connectivity.
A Dynamic DNS (DDNS) service allows a user whose public IP address is dynamically
assigned to be located by a host or domain name. It provides a central public database
where information (such as email addresses, host names, and IP addresses) can be stored
and retrieved. Now, a gateway can be configured to use a third-party service instead of a
permanent and unchanging IP address to establish bidirectional VPN connectivity.
To use DDNS, you have to register with a DDNS service provider. Some DDNS service
providers include:
•
DynDNS: www.dyndns.org
•
TZO.com: netgear.tzo.com
•
ngDDNS: ngddns.iego.net
In this example, Gateway A is configured using a sample FQDN provided by a DDNS service
provider. In this case the hostname dgnd3800.dyndns.org for Gateway A was provided using
the DynDNS service. Gateway B uses the DDNS service provider when establishing a VPN
tunnel.
To establish VPN connectivity, Gateway A has to be configured to use Dynamic DNS, and
Gateway B has to be configured to use a DNS host name provided by a DDNS service
provider to find Gateway A. Again, the following step-by-step procedures assume that you
have already registered with a DDNS service provider and have the configuration information
necessary to set up the gateways.
Step-by-Step Configuration

To configure a VPN tunnel:
1. Log in to Gateway A (your modem router) as described in Log In to the N600 Modem
Router on page 18.
This example assumes that you have set the local LAN address as 10.5.6.1 for Gateway
A and have set your own password.
2. On Gateway A, configure the Dynamic DNS settings.
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
a. Under Advanced, select Dynamic DNS.
b. Fill in the fields with account and host name settings.
• Select the Use a Dynamic DNS Service check box.
•
In the Host Name field, type dgnd3800.dyndns.org.
•
In the User Name field, enter the account user name.
•
In the Password field, enter the account password.
c. Click Apply.
d. Click Show Status. The resulting screen should show Update OK: good:
3. On NETGEAR Gateway B, configure the Dynamic DNS settings. Assume a correctly
configured DynDNS account.
a. Select Dynamic DNS.
b. Select the DynDNS.org radio button.
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N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
The Dynamic DNS screen displays:
c. Fill in the fields with the account and host name settings.
• In the Host and Domain Name field, enter fvl328.dyndns.org.
•
In the User Name field, enter the account user name.
•
In the Password field, enter the account password.
d. Click Apply.
e. Click Show Status.
The resulting screen should show Update OK: good:
4. Configure the N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B as in
the gateway-to-gateway procedures using the VPN Wizard (see Set Up a
Gateway-to-Gateway VPN Configuration on page 116), being certain to use appropriate
network addresses for the environment.
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The LAN addresses used in this example are as follows:
Table 14.
Device
LAN IP Address
LAN Subnet Mask
DGND3800B
10.5.6.1
255.255.255.0
FVL328
172.23.6.1
255.255.255.0
a. For the connection name, enter toFVL328.
b. For the remote WAN's IP address, enter fvl328.dyndns.org.
c. Enter the following:
• IP Address. 172.23.9.1
•
Subnet Mask. 255.255.255.0
5. Configure the FVL328 as in the gateway-to-gateway procedures for the VPN Wizard (see
Set Up a Gateway-to-Gateway VPN Configuration on page 116), being certain to use
appropriate network addresses for the environment.
a. For the connection name, enter toDGND3800.
b. For the remote WAN's IP address, enter dgnd3800.dyndns.org.
c. Enter the following:
• IP Address. 10.5.6.1
•
Subnet Mask. 255.255.255.0
6. Test the VPN tunnel by pinging the remote network from a computer attached to the modem
router.
a. Open the command prompt (select Start > Run > cmd)
b. Type ping 172.23.9.1.
If the pings fail the first time, try the pings a second time.
Configuration Summary (Telecommuter Example)
The configuration in this section follows the addressing and configuration mechanics defined
by the VPN Consortium. Gather the necessary information before you begin configuration.
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Verify that the firmware is up to date, and make sure you have all the addresses and
parameters to be set on both sides. Assure that there are no firewall restrictions.
Table 15. Configuration summary (telecommuter example)
VPN Consortium Scenario
Scenario 1
Type of VPN:
Client-to-gateway, with client behind NAT router
Security scheme:
IKE with pre-shared secret/key (not certificate based)
IP addressing:
Gateway
Fully qualified domain name (FQDN)
Client
Dynamic
192.168.0.1/24
Gateway A
(main office)
LAN IP
192.168.0.1
WAN IP
FQDN
ntgr.dyndns.org
“from_GW_A”
Internet
WAN IP
0.0.0.0
“toGW_A”
Client PC
Gateway B
(regional office)
IP: 192.168.2.3
(running NETGEAR
ProSafe VPN client)
Figure 25. Telecommuter example
Set Up Client-to-Gateway VPN (Telecommuter Example)
Setting up a VPN between a remote computer running the NETGEAR ProSafe VPN client
and a network gateway involves two steps, described in the following sections:
•
Step 1: Configure Gateway A (VPN Router at Main Office) on page 159.
•
Step 2: Configure Gateway B (VPN Router at Regional Office) on page 160 describes
configuring the NETGEAR ProSafe VPN client endpoint.
VPN Configuration
158
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Step 1: Configure Gateway A (VPN Router at Main Office)

To configure a VPN tunnel:
1. Log in to the VPN router. Select VPN Policies to display the VPN Policies screen. Click
Add Auto Policy to proceed and enter the information.
fromGW_A (in the example)
IKE Keep Alive is optional; has to match
Remote LAN IP Address when enabled
(remote computer has to respond to pings)
192.168.2.3 (in this example)
(Remote NAT router has to have
Address Reservation set and
VPN Passthrough enabled)
fromGW_A.com (in this example)
toGW_A.com (in this example)
2. Click Apply when you are finished to display the VPN Policies screen.
To view or modify the tunnel settings, select the radio button next to the tunnel entry, and
then click Edit.
VPN Configuration
159
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Step 2: Configure Gateway B (VPN Router at Regional Office)
This procedure assumes that the computer running the client has a dynamically assigned IP
address.
The computer has to have a VPN client program installed that supports IPSec (in this case
study, the NETGEAR VPN ProSafe Client is used). Go to the NETGEAR website
(www.netgear.com) for information about how to purchase the NETGEAR ProSafe VPN
Client.
Note: Before installing the software, be sure to turn off any virus protection
or firewall software you might be running on your computer.

To configure a VPN tunnel:
1. Install the NETGEAR ProSafe VPN Client on the remote computer, and then reboot.
a. You might need to insert your Windows CD to complete the installation.
b. If you do not have a modem or dial-up adapter installed in your computer, you might
see the warning message stating, “The NETGEAR ProSafe VPN Component
requires at least one dial-up adapter be installed.” You can disregard this message.
c. Install the IPSec component. You might have the option to install either the VPN
adapter or the IPSec component or both. The VPN adapter is not necessary.
d. The system should show the ProSafe icon (
) in the system tray after you reboot.
e. Double-click the system tray icon to open the Security Policy Editor.
2. Add a new connection.
a. Run the NETGEAR ProSafe Security Policy Editor program, and create a VPN
connection.
b. From the Edit menu of the Security Policy Editor, select Add > Connection. A New
Connection listing appears in the list of policies.
c. Rename the new connection to match the connection name you entered in the VPN
settings of Gateway A. Choose connection names that make sense to the people
using and administrating the VPN.
VPN Configuration
160
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Note: In this example, the connection name on the client side of the VPN
tunnel is toGW_A. It does not have to match the VPN_client connection name
used on the gateway side of the VPN tunnel because connection names do not
affect how the VPN tunnel functions.
d. In the Connection Security section, select Secure.
toGW_A
e. In the ID Type drop-down list, select IP Subnet.
f.
In this example, in the Subnet field, type 192.168.0.1 as the network address of the
modem router.
g. In the Mask field, enter 255.255.255.0 as the LAN subnet mask of the modem
router.
h. In the Protocol drop-down list, select All to allow all traffic through the VPN tunnel.
i.
Select the Connect using Secure Gateway Tunnel check box.
j.
In the ID Type drop-down list, select Domain Name, and enter fromGW_A.com (in
this example).
k. Select Gateway Hostname and enter ntgr.dyndns.org (in this example).
3. Configure the security policy in the modem router software.
VPN Configuration
161
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
a. In the Network Security Policy list, expand the new connection by double-clicking its
name or clicking the + symbol. My Identity and Security Policy appear below the
connection name.
b. Click Security Policy to show the Security Policy screen.
c. In the Select Phase 1 Negotiation Mode group, select the Main Mode radio button.
4. Configure the VPN client identity.
In this step, you provide information about the remote VPN client computer. You have to
provide the pre-shared key that you configured in the modem router and either a fixed IP
address or a fixed virtual IP address of the VPN client computer.
a. In the Network Security Policy list on the left side of the Security Policy Editor window,
click My Identity.
b. In the Select Certificate list, select None.
VPN Configuration
162
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
c. In the ID Type list, select Domain Name, and enter toGW_A.com (in this example).
d. In the Virtual Adapter list, select Disabled.
e. In the Internet Interface section, in the Name list, select Intel PRO/100VE Network
Connection (in this example; your Ethernet adapter might be different), and then in
the IP Addr field, enter 192.168.2.3 (in this example).
f.
Click the Pre-Shared Key button.
g. In the Pre-Shared Key screen, click Enter Key. Enter the N600 Wireless Dual Band
Gigabit VDSL2 Modem Router DGND3800B’s pre-shared key and click OK. In this
example, 12345678 is entered, though the screen shows asterisks. This field is
case-sensitive.
5. Configure the VPN Client Authentication Proposal.
In this step, you provide the type of encryption (DES or 3DES) to be used for this
connection. This selection has to match your selection in the VPN router configuration.
a. In the Network Security Policy list on the left side of the Security Policy Editor window,
expand the Security Policy heading by double-clicking its name or clicking the +
symbol.
b. Expand the Authentication subheading by double-clicking its name or clicking the +
symbol. Then select Proposal 1 below Authentication.
c. In the Authentication Method drop-down list, select Pre-Shared Key.
d. In the Encrypt Alg drop-down list, select the type of encryption. In this example, use
Triple DES.
e. In the Hash Alg drop-down list, select SHA-1.
f.
In the SA Life drop-down list, select Unspecified.
VPN Configuration
163
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
g. In the Key Group drop-down list, select Diffie-Hellman Group 2.
6. Configure the VPN Client Key Exchange Proposal.
In this step, you provide the type of encryption (DES or 3DES) to be used for this
connection. This selection has to match your selection in the VPN router configuration.
a. Expand the Key Exchange subheading by double-clicking its name or clicking the +
symbol. Then select Proposal 1 below Key Exchange.
b. In the SA Life drop-down list, select Unspecified.
c. In the Compression drop-down list, select None.
d. Select the Encapsulation Protocol (ESP) check box.
e. In the Encrypt Alg drop-down list, select the type of encryption. In this example, use
Triple DES.
f.
In the Hash Alg drop-down list, select SHA-1.
g. In the Encapsulation drop-down list, select Tunnel.
h. Leave the Authentication Protocol (AH) check box cleared.
7. Save the VPN client settings.
From the File menu at the top of the Security Policy Editor window, select Save.
After you have configured and saved the VPN client information, your computer
automatically opens the VPN connection when you attempt to access any IP addresses
in the range of the remote VPN router’s LAN.
8. Check the VPN connection.
VPN Configuration
164
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
To check the VPN connection, you can initiate a request from the remote computer to the
VPN router’s network by using the Connect option in the modem router screen:
Right-click the system
tray icon to open the
pop-up menu.
My Connections\DGD3300v2
Since the remote computer has a dynamically assigned WAN IP address, it has to initiate
the request.
a. Right-click the system tray icon to open the pop-up menu.
b. Select Connect to open the My Connections list.
c. Select toDGND3800.
The modem router reports the results of the attempt to connect. Once the connection is
established, you can access resources of the network connected to the VPN router.
Right-click the system
tray icon to open the
pop-up menu.
My Connections\DGD3300v2
To perform a ping test using this example, start from the remote computer:
a. Establish an Internet connection from the computer.
b. On the Windows taskbar, click the Start button, and then select Run.
c. Type ping -t 192.168.0.1, and then click OK.
VPN Configuration
165
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
This causes a continuous ping to be sent to the VPN router. Within 2 minutes, the ping
response should change from timed out to reply.
Once the connection is established, you can open the browser on the computer and enter the
LAN IP address of the VPN router. After a short wait, you should see the login screen of the
VPN router (unless another computer already has the VPN router management interface
open).
Note: You can use the VPN router diagnostics to test the VPN connection
from the VPN router to the client computer. To do this, log in to the
modem router and select Maintenance > Diagnostics.
Monitoring the VPN Tunnel (Telecommuter Example)
To view information about the progress and status of the VPN client connection, open the
Log Viewer. In Windows, click Start, and select Programs > N600 Wireless Dual Band
Gigabit VDSL2 Modem Router DGND3800B > Log Viewer.
Note: Use the active VPN tunnel information and pings to determine
whether a failed connection is due to the VPN tunnel or some reason
outside the VPN tunnel.
The Connection Monitor screen displays:
VPN Configuration
166
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
While the connection is being established, the connection name listed in this screen shows
SA before the name of the connection. When the connection is successful, the SA changes
to the yellow key symbol.
Note: While your computer is connected to a remote LAN through a VPN,
you might not have normal Internet access. If this is the case, you
need to close the VPN connection to have normal Internet access.
View the VPN Router’s VPN Status and Log Information
To view information about the status of the VPN client connection, open the VPN router’s
VPN Status screen:

To view status and log information:
1. Select Maintenance > Router Status, and then click the VPN Status button. The VPN
Status/Log screen displays:
2. To view the VPN tunnels status, click VPN Status.
VPN Configuration
167
C.
Notification of Compliance
NETGEAR Dual Band - Wireless
C
Regulatory Compliance Information
This section includes user requirements for operating this product in accordance with National laws for usage of radio
spectrum and operation of radio devices. Failure of the end-user to comply with the applicable requirements may
result in unlawful operation and adverse action against the end-user by the applicable National regulatory authority.
Note: Note: This product's firmware limits operation to only the channels allowed in a particular Region or Country.
Therefore, all options described in this user's guide may not be available in your version of the product.
Europe - EU Declaration of Conformity
Marking by the above symbol indicates compliance with the Essential Requirements of the R&TTE Directive of the
European Union (1999/5/EC). This equipment meets the following conformance standards:
EN300 328 (2.4Ghz), EN301 489-17, EN301 893 (5Ghz), EN60950-1
For complete DoC please visit the NETGEAR EU Declarations of Conformity website at:
http://support.netgear.com/app/answers/detail/a_id/11621/
EDOC in Languages of the European Community
Language
Statement
Cesky [Czech]
NETGEAR Inc. tímto prohlašuje, že tento Radiolan je ve shode se základními požadavky
a dalšími príslušnými ustanoveními smernice 1999/5/ES.
Dansk [Danish]
Undertegnede NETGEAR Inc. erklærer herved, at følgende udstyr Radiolan overholder de
væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF.
Deutsch
[German]
Hiermit erklärt NETGEAR Inc., dass sich das Gerät Radiolan in Übereinstimmung mit den
grundlegenden Anforderungen und den übrigen einschlägigen Bestimmungen der
Richtlinie 1999/5/EG befindet.
Eesti [Estonian]
Käesolevaga kinnitab NETGEAR Inc. seadme Radiolan vastavust direktiivi 1999/5/EÜ
põhinõuetele ja nimetatud direktiivist tulenevatele teistele asjakohastele sätetele.
English
Hereby, NETGEAR Inc., declares that this Radiolan is in compliance with the essential
requirements and other relevant provisions of Directive 1999/5/EC.
168
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Español [Spanish] Por medio de la presente NETGEAR Inc. declara que el Radiolan cumple con los
requisitos esenciales y cualesquiera otras disposiciones aplicables o exigibles de la
Directiva 1999/5/CE.
Ελληνική [Greek]
ΜΕ ΤΗΝ ΠΑΡΟΥΣΑ NETGEAR Inc. ΔΗΛΩΝΕΙ ΟΤΙ Radiolan ΣΥΜΜΟΡΦΩΝΕΤΑΙ ΠΡΟΣ
ΤΙΣ ΟΥΣΙΩΔΕΙΣ ΑΠΑΙΤΗΣΕΙΣ ΚΑΙ ΤΙΣ ΛΟΙΠΕΣ ΣΧΕΤΙΚΕΣ ΔΙΑΤΑΞΕΙΣ ΤΗΣ ΟΔΗΓΙΑΣ
1999/5/ΕΚ.
Français [French] Par la présente NETGEAR Inc. déclare que l'appareil Radiolan est conforme aux
exigences essentielles et aux autres dispositions pertinentes de la directive 1999/5/CE.
Italiano [Italian]
Con la presente NETGEAR Inc. dichiara che questo Radiolan è conforme ai requisiti
essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva 1999/5/CE.
Latviski [Latvian]
Ar šo NETGEAR Inc. deklarē, ka Radiolan atbilst Direktīvas 1999/5/EK būtiskajām
prasībām un citiem ar to saistītajiem noteikumiem.
Lietuvių
[Lithuanian]
Šiuo NETGEAR Inc. deklaruoja, kad šis Radiolan atitinka esminius reikalavimus ir kitas
1999/5/EB Direktyvos nuostatas.
Nederlands
[Dutch]
Hierbij verklaart NETGEAR Inc. dat het toestel Radiolan in overeenstemming is met de
essentiële eisen en de andere relevante bepalingen van richtlijn 1999/5/EG.
Malti [Maltese]
Hawnhekk, NETGEAR Inc., jiddikjara li dan Radiolan jikkonforma mal-htigijiet essenzjali u
ma provvedimenti ohrajn relevanti li hemm fid-Dirrettiva 1999/5/EC.
Magyar
[Hungarian]
Alulírott, NETGEAR Inc. nyilatkozom, hogy a Radiolan megfelel a vonatkozó alapvetõ
követelményeknek és az 1999/5/EC irányelv egyéb elõírásainak.
Polski [Polish]
Niniejszym NETGEAR Inc. oświadcza, że Radiolan jest zgodny z zasadniczymi
wymogami oraz pozostałymi stosownymi postanowieniami Dyrektywy 1999/5/EC.
Português
[Portuguese]
NETGEAR Inc. declara que este Radiolan está conforme com os requisitos essenciais e
outras disposições da Directiva 1999/5/CE.
Slovensko
[Slovenian]
NETGEAR Inc. izjavlja, da je ta Radiolan v skladu z bistvenimi zahtevami in ostalimi
relevantnimi določili direktive 1999/5/ES.
Slovensky
[Slovak]
NETGEAR Inc. týmto vyhlasuje, že Radiolan spĺňa základné požiadavky a všetky
príslušné ustanovenia Smernice 1999/5/ES.
Suomi [Finnish]
NETGEAR Inc. vakuuttaa täten että Radiolan tyyppinen laite on direktiivin 1999/5/EY
oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen mukainen.
Svenska
[Swedish]
Härmed intygar NETGEAR Inc. att denna Radiolan står I överensstämmelse med de
väsentliga egenskapskrav och övriga relevanta bestämmelser som framgår av direktiv
1999/5/EG.
Notification of Compliance
169
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
Íslenska
[Icelandic]
Hér með lýsir NETGEAR Inc. yfir því að Radiolan er í samræmi við grunnkröfur og aðrar
kröfur, sem gerðar eru í tilskipun 1999/5/EC.
Norsk
[Norwegian]
NETGEAR Inc. erklærer herved at utstyret Radiolan er i samsvar med de grunnleggende
krav og øvrige relevante krav i direktiv 1999/5/EF.
This device is a 2.4 GHz wideband transmission system (transceiver), intended for use in all EU member states and
EFTA countries, except in France and Italy where restrictive use applies.
In Italy the end-user should apply for a license at the national spectrum authorities in order to obtain authorization to
use the device for setting up outdoor radio links and/or for supplying public access to telecommunications and/or
network services.
This device may not be used for setting up outdoor radio links in France and in some areas the RF output power may
be limited to 10 mW EIRP in the frequency range of 2454 - 2483.5 MHz. For detailed information the end-user should
contact the national spectrum authority in France.
FCC Requirements for Operation in the United States
FCC Information to User
This product does not contain any user serviceable components and is to be used with approved antennas only.
Any product changes or modifications will invalidate all applicable regulatory certifications and approvals.
FCC Guidelines for Human Exposure
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance of 20 cm between the radiator and your body.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
FCC Declaration of Conformity
We, NETGEAR, Inc., 350 East Plumeria Drive, San Jose, CA 95134, declare under our sole responsibility that the
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B complies with Part 15 Subpart B of FCC
CFR47 Rules. Operation is subject to the following two conditions:
• This device may not cause harmful interference, and
• This device must accept any interference received, including interference that may cause undesired operation.
FCC Radio Frequency Interference Warnings & Instructions
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a
residential installation. This equipment uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following methods:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and the receiver.
• Connect the equipment into an electrical outlet on a circuit different from that which the radio receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
FCC Caution
• Any changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate this equipment.
• This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
Notification of Compliance
170
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
• For product available in the USA market, only channel 1~11 can be operated. Selection of other channels is not
possible.
• This device and its antenna(s) must not be co-located or operation in conjunction with any other antenna or
transmitter.
Industry Canada
This device complies with RSS-210 of the Industry Canada Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
IMPORTANT NOTE: Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled environment. This equipment
should be installed and operated with minimum distance 20cm between the radiator & your body.
Caution:
The device for the band 5150-5250 MHz is only for indoor usage to reduce po-tential for harmful interference to
co-channel mobile satellite systems.
High power radars are allocated as primary users (meaning they have priority) of 5250-5350 MHz and 5650-5850 MHz
and these radars could cause interference and/or damage to LE-LAN devices.
Ce dispositif est conforme à la norme CNR-210 d'Industrie Canada applicable aux appareils radio exempts de licence.
Son fonctionnement est sujet aux deux conditions suivantes: (1) le dispositif ne doit pas produire de brouillage
préjudiciable, et (2) ce dispositif doit accepter tout brouillage reçu, y compris un brouillage susceptible de provoquer un
fonctionnement indésirable.
NOTE IMPORTANTE: Déclaration d'exposition aux radiations:
Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un environnement non
contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm de distance entre la source de
rayonnement et votre corps.
Avertissement:
Le dispositif fonctionnant dans la bande 5150-5250 MHz est réservé uniquement pour une utili-sation à l'intérieur afin
de réduire les risques de brouillage préjudiciable aux systèmes de satellites mobiles utilisant les mêmes canaux.
Les utilisateurs de radars de haute puissance sont désignés utilisateurs principaux (c.-à-d., qu'ils ont la priorité) pour
les bandes 5250-5350 MHz et 5650-5850 MHz et que ces radars pourraient causer du brouillage et/ou des dommages
aux dispositifs LAN-EL.
Notification of Compliance
171
Index
clients, adding to network 33
client-to-gateway VPN tunnels 102, 105
compliance 168
configuration file 60
connecting USB drive 76
connecting wirelessly 12
connection status 64
content filtering 39
custom service (port forwarding) 47
A
AC power adapter input 11
access, controlling 42
accessing
remote computer 42
adapter, wireless 17, 30
adding
clients to network 33
custom service 47
guest devices 33
addresses, DNS 24
ADSL microfilters 13
ADSL port 11
ADSL settings 26
ADSL. See also DSL
Advanced Wireless Settings screen 86
alerts, emailing 53
Application Level Gateway (ALG), disabling 81
approved USB devices 75
attached devices, viewing 64
authentication proposal 112
Auto Policy to configure VPN tunnels 126
automatic firmware checking 57
automatic Internet connection 22
D
date and time 145
daylight savings time 51, 145
deactivating VPN tunnels 123
default demilitarized zone (DMZ) server 80
default factory settings 147
resetting 12
deleting
keywords 41
keywords or domains 41
denial of service (DoS)
port scans 79
protection 39
devices, adding 33
diagnostic utilities 65
disable SSID 31
disabling
firewalls 25
SIP ALG 81
SSID broadcast 31
disconnecting USB drive 74
DNS servers 42
Domain Name Server (DNS) addresses 24, 81
Domain Name Server (DNS), secondary 24
DSL settings 25
Dynamic DNS 81
Dynamic Host Configuration Protocol (DHCP) server
83
B
back panel 11
backing up configuration 60
Basic Settings screen
described 23
manual setup 22
blocking
content and services 39
keywords, examples 41
box contents 8
bridged networks 89
C
E
case study, setting up VPN 150
changes not saved, router 144
email notices 53
172
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
encryption algorithm 112
encryption types 32
erasing configuration file 60
external hosts, allowing communication with 45
reserved 83
IP setup, LAN 82
ISP
account information 17
Basic Settings screen 23
DSL settings 25
DSL synchronization 10
ISP login 18
F
factory settings
list of 147
resetting 12
file and printer sharing 76
file sharing 68
filtering content 39
firewall rules 42
firewall services, scheduling 51
firmware
automatic check 57
reload firmware message 144
upgrading 57, 96
upgrading at log in 19
upgrading manually 59
front panel 9
front panel LEDs 10
fully qualified domain name (FQDN), configuring VPN
tunnels using 153
K
keep-alive, IKE 127
keywords, blocking 41
L
H
LAN ports 11
LAN setup 82
large files, sharing 69
LEDs
troubleshooting 137
verifying cabling 15
local servers, port forwarding to 46
Log Viewer 115
logging in 18
cannot 143
changing password 27, 56
upgrading firmware 19
logging network activity 54
logging out 28
login
time-out 27, 28, 56
types 28
logs, emailing 53
host name 23
host trusted 41
M
G
gateway IP address 24
gateway-to-gateway VPN tunnels 102, 116
guest devices, adding 33
MAC addresses
described 31
filtering by 88
rejected 143
restricting access by 37
spoofing 140
maintenance settings 56
manual logout 28
manual setup 22
manually configuring VPN policies 133
maximum transmission unit (MTU) 80
MD5 authentication 128
menus, described 20
metric, number of routers 97
mixed mode security options 32
I
IKE protocol 126
inbound traffic
port forwarding 45
inbound traffic. See port forwarding; port triggering
Internet port 22
Internet port, no connection 27
Internet Relay Chat (IRC) 44
Internet Service Provider (ISP). See ISP
Internet traffic statistics 100
IP address 76
IP addresses
DHCP 17
LAN service 82
173
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
multi-point bridge mode 92
Q
Quality of Service (QoS) 84, 85
N
NETGEAR ProSafe VPN Client 108
Network Address Translation (NAT) 25, 43
network folder
creating 73
editing 71
network name, disabling 31
Network Time Protocol (NTP) 50, 145
network, troubleshooting 142
no Internet connection 27
R
RADIUS server 32
range of wireless connections 12
ReadySHARE access 67
remote access 42
remote management 76, 95
removing USB drive 74
repeater mode with wireless client association 93
replacing existing router 17
reserved IP address 83
restoring
configuration file 60
factory settings 147
restricting wireless access by MAC addresses 37
router interface, described 20
router, status 61
Routing Information Protocol (RIP) 82
O
On/Off button 11
one-line ADSL microfilter 13
online help, router 20
outbound traffic, trigger ports 48
P
Parental Controls 40
passphrases 37
changing 37
passwords. See passphrases
photos, sharing 68
pinging
VPNs 114, 165
WAN port 80
Plug and Play, Universal (UPnP) 98
plug and play, universal (UPnP) 98
point-to-point bridge mode 90
Point-to-Point Tunneling Protocol (PPTP) 22
port forwarding 45, 46
configuring 46
example 45
port scanning, disabling 79
port triggering 43, 46, 48
configuring 48
example 43
ports, back panel 11
positioning the router 12
power adapter, AC 11
preset security 30, 37
pre-shared key 32
primary DNS addresses 24
printing files and photos 68
Push ’N’ Connect. See WPS
S
scheduling firewall services 51
secondary DNS 24
security association (SA) 103
security features 31
security PIN 12, 34
security policy, configuring 110
security settings 31, 32, 39
sending logs by email 53
Session Initiation Protocol (SIP), disabling 81
Setup Wizard 22
SHA-1 authentication 128
sharing files 68
Simple Mail Transfer Protocol (SMTP) 53
sites, blocking 41
SSID
described 36
disabling 31
static routes 96, 97
statistics, viewing 63
status
Internet connection 64
router 61
storage drive. See USB storage
T
174
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
TCP/IP
network troubleshooting 142
no Internet connection 27
technical specifications 149
technical support 2
telecommuter example 157, 158, 166
Temporal Key Integrity Protocol (TKIP) 32
time of day 145
time zone, setting 50
time-out
login 28
port triggering 49
time-stamping 51
trademarks 2
traffic metering 99, 100
troubleshooting 136
cannot log in 143
date or time incorrect 145
firmware reload 144
LEDs 137, 138
network 142
router changes not saved 144
router not on 137
trusted host 41
trusted wireless stations 88
turning off wireless connectivity 31, 138
two-line ADSL microfilter 13
VPN Manual Policy 133
VPN network connections 126
VPN tunnels
activating 120, 121
client-to-gateway 102, 105
configuring 153
control 120
gateway-to-gateway 102, 116
monitoring 166
special setup 125
status 122
VPN Wizard 117, 118
VPNs 102
overview 102
pinging 165
planning 103
status 119, 167
W
WAN port, scanning 79
WAN setup 79
Wi-Fi Protected Setup (WPS) 33, 34
adding devices 33
keep existing settings 87
settings 86
Wi-Fi-certified products 33
Wired Equivalent Privacy (WEP) encryption 37
passphrase 37
when to use 32
wireless access points 36
wireless adapter 17, 30
wireless advanced settings 86
wireless bridging and repeating 89
wireless channel 36
wireless connectivity 12, 31, 138
wireless distribution system (WDS) 89, 90, 92, 93
wireless isolation 36
Wireless LAN (WLAN) 63
wireless mode 36
wireless network configuration 35
wireless network settings 36
wireless region 36
wireless security 31, 32
Wireless Settings screen 35
wireless settings, SSID broadcast 36
Wireless Stations Access List 88
WPA encryption 32
WPA2 encryption 32
WPA2-PSK encryption 32
WPA-802.1x encryption 32
U
Universal Plug and Play (UPnP) 98
unmounting USB drive 74
upgrading firmware 57, 96
USB
file sharing 68
ReadySHARE access 67
USB devices 74
USB devices, approved 75
USB drive requirements 67
USB storage 66
connecting 76
creating a network folder 73
editing a network folder 71
file sharing scenarios 68
V
virtual channel identifier (VCI) 25
virtual path identifier (VPI) 25
VPN Auto Policy 126, 130, 131
VPN client 108
VPN Log Viewer 114, 166
175
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
RADIUS servers 32
WPA-PSK encryption 32
WPA-PSK/WPA2-PSK mixed mode 32
WPS button 34
WPS-capable devices 33
WPS-PSK encryption 32
WPS-PSK+ WPA2-PSK encryption 32
wrong date or time 145
176
N600 Wireless Dual Band Gigabit VDSL2 Modem Router DGND3800B
177
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