Linksys WAP54GP - Wireless-G Access Point User Manual page 38

Appendix A
Click the Network and Internet Connections icon
b.
and then the Network Connections icon.
Right-click the Local Area Connection associated
c.
with your Ethernet adapter, and click Properties.
d. In the This connection uses the following items
box, select Internet Protocol (TCP/IP) and click
Properties. Make sure that Obtain an IP address
automatically and Obtain DNS server address
automatically are selected.
2. Open a command prompt:
Windows 2000 and XP: Click Start and Run. In the
a.
Open field, type cmd. Press Enter or click OK.
At the command prompt, type ping 9.8.. and
3.
press Enter.
If you get a reply, the computer is communicating
•
with the Router.
If you do NOT get a reply, check the cable, and make
•
sure Obtain an IP address automatically is selected
in the TCP/IP settings for your Ethernet adapter.
4. At the command prompt, type ping followed by your
Internet IP address and press Enter. The Internet
IP Address can be found in the web interface of the
Router. For example, if your Internet IP address is
1.2.3.4, you would enter ping ... and press Enter.
If you get a reply, the computer is connected to
•
the Router.
If you do NOT get a reply, try the ping command
•
from a different computer to verify that your
original computer is not the cause of the problem.
5. At the command prompt, type ping www.linksys.com
and press Enter.
If you get a reply, the computer is connected to
•
the Internet. If you cannot open a web page, try
the ping command from a different computer to
verify that your original computer is not the cause
of the problem.
If you do NOT get a reply, there may be a problem
•
with the connection. Try the ping command from
a different computer to verify that your original
computer is not the cause of the problem.
I am not getting an IP address on the Internet with my
Internet connection.
1. Refer to "I want to test my Internet connection" above
to verify that you have connectivity.
2. If you need to clone the MAC address of your Ethernet
adapter onto the Router, see the MAC Address Clone
section of "Chapter 5: Configuring the Wireless-G
Router" for details.
Wireless-G VPN Router with RangeBooster
3. Make sure you are using the right Internet settings.
Contact your ISP to see if your Internet connection type
is DHCP, Static IP Address, or PPPoE (commonly used by
DSL consumers). Please refer to the Basic Setup section
of "Chapter 5: Configuring the Wireless-G Router" for
details on Internet Connection Type settings.
4. Make sure you use the right cable. Check to see if the
Internet LED is solidly lit.
5. Make sure the cable connecting from your cable or
DSL modem is connected to the Router's Internet port.
Verify that the Status page of the Router's Web-based
Utility shows a valid IP address from your ISP.
6. Turn off the computer, Router, and cable/DSL modem.
Wait 30 seconds, and then turn on the Router, cable/
DSL modem, and computer. Check the System
Summary tab of the Router's Web-based Utility to see
if you get an IP address.
I am not able to access the Router's Web-based Utility
Setup page.
1. Refer to "I want to test my Internet connection" above
to verify that your computer is properly connected to
the Router.
2. Verify that your computer has an IP Address, Subnet
Mask, Gateway, and DNS.
3. Set a static IP address on your system; refer to "I need
to set a static IP address" above.
4. Refer to "I need to remove the proxy settings or the
dial-up pop-up window (for PPPoE users)" below.
I can't get my Virtual Private Network (VPN) to work
through the Router.
Access the Router's web interface by going to
http://9.8.. or the IP address of the Router, and go
to the VPN -> VPN Pass Through tab. Make sure you have
IPSec passthrough and/or PPTP passthrough enabled.
VPNs that use IPSec with the ESP (Encapsulation Security
Payload known as protocol 50) authentication will work
fine. At least one IPSec session will work through the
Router; however, simultaneous IPSec sessions may be
possible, depending on the specifics of your VPNs.
VPNs that use IPSec and AH (Authentication Header
known as protocol 51) are incompatible with the Router.
AH has limitations due to occasional incompatibility with
the NAT standard.
Change the IP address for the Router to another subnet
to avoid a conflict between the VPN IP address and your
local IP address. For example, if your VPN server assigns
an IP address 192.168.1.X (X is a number from 1 to 254)
and your local LAN IP address is 192.168.1.X (X is the same
Troubleshooting