User's Manual

NOTE: For better wireless security, IEEE 802.1x capability of the IEEE 802.11b/g must be enabled

so that only authenticated wireless users can access the wireless network. Refer to the IEEE

802.1x-related white papers on the companion CD-ROM for more information about deploying secure

WLANs with IEEE 802.1x support.

2.6.2. Configuring TCP/IP-Related Settings

Use Windows Network Control Panel Applet to change the TCP/IP settings of the client computers,

so that the IP addresses of the client computers and the IP address of the IEEE 802.11b/g are in the

same IP subnet.

If a client computer is originally set a static IP address, you can either change its IP address to match

the IP address of the AP, or select an automatically-obtain-an-IP-address option if there is a DHCP

server on the network.

NOTE: For some versions of Windows, the computer needs to be restarted for the changes of TCP/IP

settings to take effect.

2.7. Confirming the Settings of the IEEE 802.11b/g

and Client Computers

After the deploying the IEEE 802.11b/g and setting up client computers, confirm that the settings are

correct.

2.7.1. Checking if the IEEE 802.11b-Related Settings Work

To check if a wireless client computer can associate with the AP:

1. Launch the configuration/monitoring utility provided by the vendor of the installed WLAN NIC.

2. Check if the client computer is associated to an access point, and the access point is the IEEE

802.11b/g.

If the check fails, see Appendix B-1, “Wireless Settings Problems” for troubleshooting.

2.7.2. Checking if the TCP/IP-Related Settings Work

To check if a client computer can access the Internet:

1. Open a Windows Command Prompt window on the client computer.

2. Type “ping advap”, where advap is a placeholder for the IP address of the AP. Replace it with

your real IP address—for example, 192.168.0.1. Then press Enter.

If the IEEE 802.11b/g responds, go to the next step; else, see Appendix B-2, “TCP/IP Settings

Problems” for troubleshooting.

3. Type “ping default_gateway”, where default_gateway is a placeholder for the IP address of the

default gateway of the wireless client computer. Then press Enter.

If the gateway responds, go to the next step; else, see Appendix B-2, “TCP/IP Settings Prob-

lems” for troubleshooting.