ZyWALL User's Guide

Chapter 10 Interface
ZyWALL USG 100/200 Series User’s Guide
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10.9 WLAN Interface General Screen
The following figure provides an example of a wireless network. The wireless network is in
the blue circle. Wireless clients (A and B) connect to an access point (AP) to access other
devices (such as the printer) or the Internet. Your ZyWALL works as an AP when you install a
compatible WLAN card.
Figure 165 Example of a Wireless Network
• Every device in a wireless network must use the same SSID.
The SSID is the name of the wireless network. It stands for Service Set IDentity.
• Different wireless networks in the same area should use different channels.
Like radio stations or television channels, each wireless network uses a specific channel,
or frequency, to send and receive information.
• Every wireless client in a wireless network must use security compatible with the AP.
Security stops unauthorized devices from using the wireless network and can protect the
information that is sent in the wireless network.
Click Network > Interface > WLAN to open the following screen. See Appendix E on page
831 for more details on wireless LANs.
Signal Quality This displays the strength of the signal. The signal strength mainly depends on the
antenna output power and the distance between your ZyWALL and the service
provider’s base station.
More Info. This field displays other details about the 3G connection.
Table 64 Interface > Cellular > Status (continued)
LABEL DESCRIPTION