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³¶
Troubleshooting
Wireless-G VPN Router with RangeBooster
Appendix A
DSL users, it is strongly recommended to use MTU 1492. If
you are having difficulties, perform the following steps:
To connect to the Router, go to the web browser, and
enter
http://±9².±¶8.±.±
or the IP address of the
Router.
Enter the password, if asked (the default password is
admin
).
Go to the
Setup -> Basic Setup
tab.
Look for the MTU option, and select
Manual
. In the
MTU Size
field, enter
±´9²
.
Click
Save Settings
to continue.
If your difficulties continue, change the MTU Size to
different values. Try this list of values, one value at a time,
in this order, until your problem is solved:
1462
1400
1362
1300
I need to use port triggering.
Port triggering looks at the outgoing port services
used and will trigger the Router to open a specific port,
depending on which port an Internet application uses.
Follow these steps:
To connect to the Router, go to the web browser, and
enter
http://±9².±¶8.±.±
or the IP address of the
Router.
Enter the password, if asked (the default password is
admin
).
Click the
Firewall -> Port Triggering
tab.
Enter any name you want to use for the Application
Name.
Enter the Start and End Ports of the Triggered Range.
Check with your Internet application provider for
more information on which outgoing port services it
is using.
Enter the Start and End Ports of the Forwarded Range.
Check with your Internet application provider for
more information on which incoming port services are
required by the Internet application.
Check the
Enabled
checkbox for the entry.
When you have completed the configuration, click
Save
Settings
.
1.
2.
3.
4.
5.
1.
2.
3.
4.
5.
6.
7.
When I enter a URL or IP address, I get a time-out error or
am prompted to retry.
Check if other PCs work. If they do, ensure that your
workstation’s IP settings are correct (IP Address,
Subnet Mask, Default Gateway, and DNS). Restart the
computer that is having a problem.
If the PCs are configured correctly, but still not
working, check the Router. Ensure that it is connected
and powered on. Connect to it and check its settings.
(If you cannot connect to it, check the LAN and power
connections.)
If the Router is configured correctly, check your
Internet connection (DSL/cable modem, etc.) to see if
it is working correctly. You can remove the Router to
verify a direct connection.
Manually configure the TCP/IP settings with a DNS
address provided by your ISP.
Make sure that your browser is set to connect directly
and that any dial-up is disabled. For Internet Explorer,
click
Tools
,
Internet Options
, and then the
Connection
tab. Make sure that Internet Explorer is set to
Never
dial a connection
. For Netscape Navigator, click
Edit
,
Preferences
,
Advanced
, and
Proxy
. Make sure that
Netscape Navigator is set to
Direct connection to the
Internet
.
I’m trying to access the Router’s Web-based Utility, but I
do not see the login screen. Instead, I see a screen saying,
“404 Forbidden.”
If you are using Internet Explorer, perform the following
steps until you see the Web-based Utility’s login screen
(Netscape Navigator will require similar steps):
Click
File
. Make sure
Work Offline
is NOT checked.
Press
CTRL + Fµ
. This is a hard refresh, which will force
Internet Explorer to load new web pages, not cached
ones.
Click
Tools
. Click
Internet Options
. Click the
Security
tab. Click the
Default level
button. Make sure the
security level is Medium or lower. Then click
OK
.
I have a QuickVPN tunnel connected to my WRV200, but
I cannot see the computers in the remote network from
Windows Explorer.
QuickVPN tunneling does not support NetBIOS Broadcast.
To access the computers or shared drives on the remote
network, users are advised to use the IP address to identify
the resource.
I
have
a
Gateway-to-Gateway
IPSec
VPN
tunnel
connected between two WRV200 routers, but the users
1.
2.
3.
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³·
Troubleshooting
Wireless-G VPN Router with RangeBooster
Appendix A
in one network cannot see the computers in the remote
network from Windows Explorer.
The WRV200 does not support NetBIOS Broadcast over
a Gateway-to-Gateway IPSec VPN tunnel. To access the
computers or shared drives on the remote network, users
are advised to use the IP address to identify the resource.
Frequently Asked Questions
What is the maximum number of IP addresses that the
Router will support?
The Router will support up to 253 IP addresses.
Is IPSec Passthrough supported by the Router?
Yes, you can enable or disable IPSec Passthrough on the
VPN > VPN Passthrough
screen.
Where is the Router installed on the network?
In a typical environment, the Router is installed between
the cable/DSL modem and the LAN. Plug the Router into
the cable/DSL modem’s Ethernet port.
Does the Router support IPX or AppleTalk?
No. TCP/IP is the only protocol standard for the Internet
and has become the global standard for communications.
IPX, a NetWare communications protocol used only to
route messages from one node to another, and AppleTalk,
a communications protocol used on Apple and Macintosh
networks, can be used for LAN to LAN connections, but
those protocols cannot connect from the Internet to the
LAN.
What is Network Address Translation and what is it used
for?
Network Address Translation (NAT) translates multiple IP
addresses on the private LAN to one public address that is
sent out to the Internet. This adds a level of security since
the address of a PC connected to the private LAN is never
transmitted on the Internet. Furthermore, NAT allows the
Router to be used with low cost Internet accounts, such
as DSL or cable modems, when only one TCP/IP address
is provided by the ISP. The user may have many private
addresses behind this single address provided by the ISP.
Does the Router support any operating system other
than Windows 2000 or Windows XP?
Yes, but Linksys does not, at this time, provide technical
support for setup, configuration or troubleshooting of any
non-Windows operating systems.
Does the Router support ICQ send file?
Yes, with the following fix: click ICQ menu => preference
=> connections tab=>, and check I am behind a firewall or
proxy. Then set the firewall time-out to 80 seconds in the
firewall setting. The Internet user can then send a file to a
user behind the Router.
I set up an Unreal Tournament Server, but others on the
LAN cannot join. What do I need to do?
If you have a dedicated Unreal Tournament server running,
you need to create a static IP for each of the LAN computers
and forward ports 7777, 7778, 7779, 7780, 7781, and
27900 to the IP address of the server. You can also use a
port forwarding range of 7777 to 27900. If you want to use
the UT Server Admin, forward another port (8080 usually
works well but is used for remote admin; you may have to
disable this), and then in the [UWeb.WebServer] section of
the server.ini file, set the ListenPort to 8080 (to match the
mapped port above) and ServerName to the IP assigned
to the Router from your ISP.
Can multiple gamers on the LAN get on one game
server and play simultaneously with just one public IP
address?
It depends on which network game or what kind of game
server you are using. For example, Unreal Tournament
supports multi-login with one public IP.
How do I get Half-Life: Team Fortress to work with the
Router?
The default client port for Half-Life is 27005. The computers
on your LAN need to have “+clientport 2700x” added to
the HL shortcut command line; the x would be 6, 7, 8, and
on up. This lets multiple computers connect to the same
server. One problem: Version 1.0.1.6 won’t let multiple
computers with the same CD key connect at the same
time, even if on the same LAN (not a problem with 1.0.1.3).
As far as hosting games, the HL server does not need to be
in the DMZ. Just forward port 27015 to the local IP address
of the server computer.
How can I block corrupted FTP downloads?
If you are experiencing corrupted files when you download
a file with your FTP client, try using another FTP program.
The web page hangs; downloads are corrupt, or nothing
but junk characters are being displayed on the screen.
What do I need to do?
Force your Ethernet adapter to 10Mbps or half duplex
mode, and turn off the “Auto-negotiate” feature of your
Ethernet adapter as a temporary measure. (Please look
at the Network Control Panel in your Ethernet adapter’s
Advanced Properties tab.) Make sure that your proxy
Page 43 / 72
³8
Troubleshooting
Wireless-G VPN Router with RangeBooster
Appendix A
setting is disabled in the browser. Check our website at
www.linksys.com for more information.
If all else fails in the installation, what can I do?
Reset the Router by holding down the Reset button for ten
seconds. Reset your cable or DSL modem by powering the
unit off and then on. Obtain and flash the latest firmware
release that is readily available on the Linksys website,
www.linksys.com.
How can I be notified of new Router firmware upgrades?
All
Linksys
firmware
upgrades
are
posted
on
the
Linksys website at www.linksys.com, where they can
be downloaded for free. The Router’s firmware can be
upgraded using the Web-based Utility. If the Router’s
Internet connection is working well, there is no need
to download a newer firmware version, unless that
version contains new features that you would like to use.
Downloading a more current version of Router firmware
will not enhance the quality or speed of your Internet
connection, and may disrupt your current connection
stability.
Will the Router function in a Macintosh environment?
Yes, but the Router’s setup pages are accessible only
through Internet Explorer 5.0 or Netscape Navigator 5.0 or
higher for Macintosh.
I am not able to get the web configuration screen for the
Router. What can I do?
You may have to remove the proxy settings on your
Internet browser, e.g., Netscape Navigator or Internet
Explorer. Or remove the dial-up settings on your browser.
Check with your browser documentation, and make sure
that your browser is set to connect directly and that any
dial-up is disabled. Make sure that your browser is set
to connect directly and that any dial-up is disabled. For
Internet Explorer, click Tools, Internet Options, and then
the Connection tab. Make sure that Internet Explorer is
set to Never dial a connection. For Netscape Navigator,
click Edit, Preferences, Advanced, and Proxy. Make sure
that Netscape Navigator is set to Direct connection to the
Internet.
What is DMZ Hosting?
Demilitarized Zone (DMZ) allows one IP address (computer)
to be exposed to the Internet. Some applications require
multiple TCP/IP ports to be open. It is recommended that
you set your computer with a static IP if you want to use
DMZ Hosting.
If DMZ Hosting is used, does the exposed user share the
public IP with the Router?
No.
Does the Router pass PPTP packets or actively route
PPTP sessions?
The Router allows PPTP packets to pass through.
Is the Router cross-platform compatible?
Any platform that supports Ethernet and TCP/IP is
compatible with the Router.
Does the Router replace a modem? Is there a cable or
DSL modem in the Router?
No, this version of the Router must work in conjunction
with a cable or DSL modem.
Which modems are compatible with the Router?
The Router is compatible with virtually any cable or DSL
modem that supports Ethernet.
How can I check whether I have static or DHCP IP
addresses?
Ask your ISP to find out.
How do I get mIRC to work with the Router?
Under the
Firewall -> Port Forwarding
tab, set port
forwarding to 113 for the PC on which you are using
mIRC.
Page 44 / 72
³9
Wireless Security Checklist
Wireless-G VPN Router with RangeBooster
Appendix B
Appendix B:
Wireless Security Checklist
Wireless networks are convenient and easy to install, so
homes with high-speed Internet access are adopting them
at a rapid pace. Because wireless networking operates by
sending information over radio waves, it can be more
vulnerable to intruders than a traditional wired network.
Like signals from your cellular or cordless phones, signals
from your wireless network can also be intercepted. Since
you cannot physically prevent someone from connecting
to your wireless network, you need to take some additional
steps to keep your network secure.
±. Change the default wireless
network name or SSID
Wireless devices have a default wireless network name
or Service Set Identifier (SSID) set by the factory. This
is the name of your wireless network, and can be up
to 32 characters in length. Linksys wireless products
use
linksys
as the default wireless network name. You
should change the wireless network name to something
unique to distinguish your wireless network from other
wireless networks that may exist around you, but do not
use personal information (such as your Social Security
number) because this information may be available for
anyone to see when browsing for wireless networks.
². Change the default password
For wireless products such as access points, routers, and
gateways, you will be asked for a password when you
want to change their settings. These devices have a default
password set by the factory. The Linksys default password
is
admin
. Hackers know these defaults and may try to
use them to access your wireless device and change your
network settings. To thwart any unauthorized changes,
customize the device’s password so it will be hard to
guess.
³. Enable MAC address filtering
Linksys routers and gateways give you the ability to
enable Media Access Control (MAC) address filtering. The
MAC address is a unique series of numbers and letters
assigned to every networking device. With MAC address
filtering enabled, wireless network access is provided
solely for wireless devices with specific MAC addresses.
For example, you can specify the MAC address of each
computer in your home so that only those computers can
access your wireless network.
´. Enable encryption
Encryption protects data transmitted over a wireless
network. Wi-Fi Protected Access (WPA/WPA2) and Wired
Equivalency Privacy (WEP) offer different levels of security
for wireless communication. Currently, devices that are
Wi-Fi certified are required to support WPA2, but are not
required to support WEP.
A network encrypted with WPA/WPA2 is more secure
than a network encrypted with WEP, because WPA/WPA2
uses dynamic key encryption. To protect the information
as it passes over the airwaves, you should enable the
highest level of encryption supported by your network
equipment.
WEP is an older encryption standard and may be the
only option available on some older devices that do not
support WPA.
General Network Security Guidelines
Wireless network security is useless if the underlying
network is not secure.
Password protect all computers on the network and
individually password protect sensitive files.
Change passwords on a regular basis.
Install
anti-virus
software
and
personal
firewall
software.
Disable file sharing (peer-to-peer). Some applications
may open file sharing without your consent and/or
knowledge.
Additional Security Tips
Keep wireless routers, access points, or gateways away
from exterior walls and windows.
Turn wireless routers, access points, or gateways
off when they are not being used (at night, during
vacations).
Use strong passphrases that are at least eight characters
in length. Combine letters and numbers to avoid using
standard words that can be found in the dictionary.
Page 45 / 72
´0
Using Linksys QuickVPN for Windows 2000, XP, or Vista
Wireless-G VPN Router with RangeBooster
Appendix C
Appendix C:
Using Linksys QuickVPN for
Windows ²000, XP, or Vista
Overview
This appendix explains how to install and use the Linksys
QuickVPN software that can be downloaded from www.
linksys.com. QuickVPN works with computers running
Windows 2000, XP, or Vista. (Computers using other
operating systems will have to use third-party VPN software.)
For Windows Vista, QuickVPN Client version 1.2.5 or later is
required.
Before You Begin
QuickVPN only works with a Linksys Wireless-G VPN
Router with RangeBooster that is properly configured to
accept a QuickVPN connection. Follow these instructions
to configure the Router’s VPN client settings:
Open the Web-based utility.
Click
VPN
>
VPN Client Access
.
VPN Client Access Screen
Enter the username in the
Username
field.
Enter the password in the
Password
field, and enter it
again in the
Re-enter to confirm
field.
Click
Add/Save
.
Click the
Active
checkbox for VPN Client No. 1.
Click
Save Settings
.
Installing the Linksys QuickVPN Software
Installing from the CD-ROM
Insert the WRV200 CD-ROM into your CD-ROM drive.
1.
2.
3.
4.
5.
6.
7.
1.
Go to the
Start
menu and then click
Run
. In the field
provided, enter
D:\VPN_Client.exe
(if “
D
” is the letter
of your CD-ROM drive).
The License Agreement screen appears. Click
Yes
to
accept the agreement and the appropriate files are
copied to the computer.
License Agreement
Copying Files
Finished Installing Files
Click
Finished
to complete the installation. Proceed to
the section, “Using the Linksys QuickVPN Software”.
Downloading and Installing from the Internet
Go to
www.linksys.com
and select
Products
.
Click
Business
.
Click
Router/VPN Solutions
.
Click
WRV²00
.
Click
Linksys QuickVPN Utility
in the More Information
section.
Save the zip file to your PC, and extract the .exe file.
Double-click the .exe file, and follow the on-screen
instructions. Proceed to the next section, “Using the
Linksys QuickVPN Software”.
2.
3.
1.
2.
3.
4.
5.
6.
7.

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