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Wireless ADSL2+ Modem Router DG834Gv5 User Manual
Virtual Private Networking
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v1.0, March 2010
T
he following table explains the fields in the VPN Manual Policy screen.
Table 6-7.
VPN Manual Policy Fields and Settings
Fields and Settings
Description
General
The DG834G v5 VPN
tunnel network
connection fields.
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 must 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.
Local LAN
The remote VPN
endpoint must have
these IP addresses
entered as its remote
addresses.
Subnet Mask
Enter the network mask.
Single PC - no
Subnet
Select this option if there is no LAN (only a single PC) at the
remote endpoint. If this option is selected, no additional data is
required.
Single/Start IP
Address
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 must be an address
range used on your LAN.
Any
. The remote VPN endpoint may be at any IP address.
Finish IP
Address
For an address range, enter the finish IP address. This must
be an address range used on your LAN.
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Remote LAN
The remote VPN
endpoint must have
these IP addresses
entered as its Local
addresses.
IP Address
Single PC - no Subnet
. Select this option if there is no LAN
(only a single PC) at the remote endpoint. If this option is
selected, no additional data is required. The typical application
is a PC running the VPN client at the remote end.
Single/Start IP
Address
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
must be an address range used on the remote LAN.
Any
. Any outgoing traffic from the
Local IP
computers will
trigger an attempted VPN connection to the remote VPN
endpoint. Please be sure you want this option before
selecting it.
Finish IP
Address
Enter the finish IP address for a range of addresses. This
must be an address range used on the remote LAN.
Subnet Mask
Enter the network mask.
ESP Configuration
ESP (Encapsulating
Security Payload)
provides security for the
payload (data) sent
through the VPN tunnel.
SPI
Enter the required Security Policy Indexes (SPIs). Each policy
must have unique SPIs. These settings must match the
remote VPN endpoint. The
in
setting here must match the
out
setting on the remote VPN endpoint, and the
out
setting here
must 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 the SHA-1 or MD5 authentication algorithm, and enter
the key in the field provided. For MD5, the keys should be 16
ASCII characters. For SHA-1, the keys should be 20 ASCII
characters.
MD5
. 128 bits, faster but less secure.
SHA-1
. (default)160 bits, slower but more secure.
Table 6-7.
VPN Manual Policy Fields and Settings
(continued)
Fields and Settings
Description
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7-1
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Chapter 7
Troubleshooting
This chapter gives information about troubleshooting your ADSL2+ Modem Wireless Router.
After each problem description, instructions are provided to help you diagnose and solve the
problem. For the common problems listed, go to the section indicated.
Is the router on?
Have I connected the router correctly?
Go to
“Basic Functioning” on page 7-1
.
I can’t access the router’s configuration with my browser.
Go to
“Troubleshooting Access to the Modem Router Main Menu” on page 7-2
.
I’ve configured the router but I can’t access the Internet.
Go to
“Troubleshooting the ISP Connection” on page 7-3
.
I want to clear the configuration and start over again.
Go to
“Restoring the Default Configuration and Password” on page 7-8
.
Basic Functioning
After you turn on power to the router, the following sequence of events should occur:
1.
When power is first applied, verify that the Power
LED is on.
2.
After approximately 10 seconds, verify that:
a.
The Power LED is still solid green. A red light indicates the unit has failed its power-on
self-test (POST).
b.
The Ethernet LAN port LEDs are lit for any local ports that are connected.
If a LAN port’s LED is lit, a link has been established to the connected device. If a LAN
port is connected to a 100 Mbps device, verify that the port’s LED is green. If the port is
10 Mbps, the LED is amber.
c.
The DSL and Internet LEDs are lit.
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If any of these conditions does not occur, refer to the appropriate following section.
Power LED Is Not On
If the Power and other LEDs are off when your router is turned on:
Make sure that the power cord is properly connected to your router and that the power supply
adapter is properly connected to a functioning power outlet.
Check that you are using the 12V DC power adapter supplied by NETGEAR for this product.
If the error persists, you have a hardware problem and should contact technical support.
Power LED Is Red
When the router is turned on, the modem router performs a power-on self-test. If the Power LED
turns red, there is a fault within the router. Try to clear the fault as follows:
Cycle the power to see if the router recovers.
Clear the router’s configuration to factory defaults. This sets the router’s IP address to
192.168.0.1. This procedure is explained in
“Restoring the Default Configuration and
Password” on page 7-8
.
If the error persists, you might have a hardware problem and should contact technical support.
LAN or DSL or Internet Port LEDs Are Not On
If these LEDs do not light when the Ethernet connection is made, check the following:
Make sure that the Ethernet cable connections are secure at the router and at the hub or
workstation.
Make sure that power is turned on to the connected hub or workstation.
Be sure that you are using the correct cable. When connecting the router’s WAN ADSL port,
use the cable that was supplied with the DG834G v5.
Troubleshooting Access to the Modem Router Main Menu
If you are unable to access the modem router main menu from a computer on your local network,
check the following:
If you are using an Ethernet-connected computer, check the Ethernet connection between the
computer and the router as described in the previous section.
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Troubleshooting
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Make sure 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 of
192.168.0.2 to 192.168.0.254. See the online document listed in
“Preparing a Computer for
Network Access” in Appendix C
to find your computer’s IP address.
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. This will set the router’s IP address to 192.168.0.1.
This procedure is explained in
“Restoring the Default Configuration and Password” on
page 7-8
.
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 quitting the browser and launching it again.
Make sure you are using the correct login information. The factory default login name is
admin
, and the password is
password
. Make sure that Caps Lock is off when entering this
information.
If the router does not save changes you have made in the Web configuration interface, check the
following:
When entering configuration settings, be sure to 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 Web browser might be caching the old configuration.
Troubleshooting the ISP Connection
ADSL Link
If your router is unable to access the Internet, you should first determine whether you have a DSL
link with the service provider. The state of this connection is indicated with the DSL LED.
Note:
If your computer’s IP address is shown as 169.254.x.x:
Recent versions of Windows and MacOS generate and assign an IP address if
the computer cannot reach a DHCP server. These auto-generated addresses are
in the range of 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.

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