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95
Appendix A: Troubleshooting
Frequently Asked Questions
10/100 16-Port VPN Router
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. To get the LAN IP address, see “Appendix C: Finding the MAC Address and IP Address
for Your Ethernet Adapter.”
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.
How many ports can be simultaneously forwarded?
Theoretically, the Router can establish 4,000 sessions at the same time, but you can only forward 30 ranges of
ports.
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96
Appendix A: Troubleshooting
Frequently Asked Questions
10/100 16-Port VPN 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.
What is the maximum number of VPN passthrough sessions allowed by the Router?
The maximum number depends on many factors. At least one IPSec session will work through the Router;
however, simultaneous IPSec sessions may be possible, depending on the specifics of your VPNs.
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 Setup => Forwarding tab, set port forwarding to
113
for the PC on which you are using mIRC.
If your questions are not addressed here, refer to the Linksys website,
www.linksys.com
.
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97
Appendix B: Upgrading Firmware
10/100 16-Port VPN Router
Appendix B: Upgrading Firmware
You can use the Router’s Web-based Utility to upgrade the firmware; however, if you do so, you may lose the
settings you have configured on the Router.
To upgrade the Router’s firmware, follow these instructions:
1.
Click the
System Management Tab
and then the
Firmware Upgrade
page.
2.
Click the
Firmware Download from Linksys Web Site
button.
3.
Select the Router from the pull-down menu and choose the firmware from the options.
4.
Extract the file on your computer.
5.
On the
Firmware Upgrade
screen, shown in Figure B-1, enter the location of the extracted firmware upgrade
file, or click the
Browse
button to find this file.
6.
Click the
Firmware
Upgrade Right Now
button, and follow the on-screen instructions.
Figure B-1: Upgrade Firmware
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98
Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter
Windows 98 or Me Instructions
10/100 16-Port VPN Router
Appendix C: Finding the MAC Address and IP Address for Your
Ethernet Adapter
This section describes how to find the MAC address for your computer’s Ethernet adapter so you can use the MAC
address cloning feature of the Router. You can also find the IP address of your computer’s Ethernet adapter. This
IP address is used for the Router’s filtering, forwarding, and/or DMZ features. Follow the steps in this appendix to
find the adapter’s MAC or IP address in Windows 98, Me, 2000, or XP.
Windows 98 or Me Instructions
1.
Click
Start
and
Run
. In the
Open
field, enter
winipcfg
. Then press the
Enter
key or the
OK
button.
2.
When the
IP Configuration
screen appears, select the Ethernet adapter you have connected to the Router via a
CAT 5 Ethernet network cable. See Figure C-1.
3.
Write down the Adapter Address as shown on your computer screen (see Figure C-2). This is the MAC address
for your Ethernet adapter and is shown as a series of numbers and letters.
The MAC address/Adapter Address is what you will use for MAC address cloning or MAC filtering.
The example in Figure C-2 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may
show something different.
Windows 2000 or XP Instructions
1.
Click
Start
and
Run
. In the
Open
field, enter
cmd
. Press the
Enter
key or click the
OK
button.
2.
At the command prompt, enter
ipconfig /all
. Then press the
Enter
key.
Figure C-2: MAC Address/Adapter
Address
Figure C-1: IP Configuration Screen
Note:
The MAC address is also called the Adapter Address.
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99
Appendix C: Finding the MAC Address and IP Address for Your Ethernet Adapter
For the Router’s Web-based Utility
10/100 16-Port VPN Router
3.
Write down the Physical Address as shown on your computer screen (Figure C-3); it is the MAC address for
your Ethernet adapter. This appears as a series of numbers and letters.
The MAC address/Physical Address is what you will use for MAC address cloning or MAC filtering.
The example in Figure C-3 shows the Ethernet adapter’s IP address as 192.168.1.100. Your computer may
show something different.
For the Router’s Web-based Utility
The MAC Clone table displays the number of WAN ports you have configured on the
Network
or
Port Management
screen. Their MAC addresses are shown in the MAC Address column. Click the
Edit
in the Config. column to edit
the MAC Clone setting of the selected WAN port. A new screen will appear.
In the
Interface
field, the WAN port number is displayed. To manually clone a MAC address, select
User Defined
WAN MAC Address
, and then enter the 12 digits of your adapter’s MAC address. If you want to clone the MAC
address of the PC you are currently using to configure the Router, then select
MAC Address from this PC
.
Click the
Save Settings
button to save your changes, or click the
Cancel Changes
button to undo your changes.
Click the
Back
button to return to the previous page if you want to configure the other WAN ports.
Figure C-3: MAC Address/Physical Address
Note:
The MAC address is also called the Physical Address.
Figure C-4: MAC Clone
Figure C-5: Edit MAC Clone
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