User manual ZYXEL G-570S

[. . . ] G-570S 802. 11g Wireless Access Point User's Guide Version 1. 00 12/2006 Edition 2 www. zyxel. com About This User's Guide About This User's Guide Intended Audience This manual is intended for people who want to configure the ZyXEL Device using the web configurator. You should have at least a basic knowledge of TCP/IP networking concepts and topology. Related Documentation · Quick Start Guide The Quick Start Guide is designed to help you get up and running right away. It contains information on setting up your network and configuring for Internet access. [. . . ] Click Reset to begin configuring this screen afresh. 7. 6. 3 The Site Survey Window Click on the Site Survey button in the Wireless > Wireless Settings screen (when the ZyXEL Device is in Wireless Client mode) to display the Site Survey screen. The ZyXEL Device searches for available access points (APs). Use this screen to view details of wireless access points within range. Figure 29 Wireless Client Mode: the Site Survey Screen 64 ZyXEL G-570S User's Guide Chapter 7 Wireless Screens The following table describes the labels in this screen. Table 16 Wireless: the AP Survey Screen LABEL Site Survey SSID BSSID Channel Wireless Mode Security Signal Strength Rescan This field displays the SSID (Service Set IDentifier) of each access point. This field displays the MAC address of each access point. This field displays the channel number used by each access point. This field displays the wireless networking standard the access point is using. This field displays details of the access point's security and data encryption settings. This field displays the signal strength of each access point. Click Rescan to have the ZyXEL Device search again for available access points. DESCRIPTION 7. 6. 4 Bridge Mode The device can act as a wireless network bridge and establish wireless links with other APs. You need to know the MAC address of the peer device, which also must be in bridge mode. When two devices connect in Bridge mode, they form a WDS (Wireless Distribution System) allowing the computers in one LAN to connect to the computers in another LAN. See the following example. WPA, WPA2 and IEEE 802. 1x wireless security are not available when you use Wireless Client, Bridge or AP+Repeater mode. You can use only WEP or WPA2-PSK keys to encrypt traffic between APs. ZyXEL G-570S User's Guide 65 Chapter 7 Wireless Screens Figure 30 Bridging Example Be careful to avoid bridge loops when you enable bridging in the ZyXEL Device. Bridge loops cause broadcast traffic to circle the network endlessly, resulting in possible throughput degradation and disruption of communications. The following examples show two network topologies that can lead to this problem: If two or more ZyXEL Devices (in bridge mode) are connected to the same hub as shown next. Figure 31 Bridge Loop: Two Bridges Connected to Hub If your ZyXEL Device (in bridge mode) is connected to a wired LAN while communicating with another wireless bridge that is also connected to the same wired LAN as shown next. 66 ZyXEL G-570S User's Guide Chapter 7 Wireless Screens Figure 32 Bridge Loop: Bridge Connected to Wired LAN To prevent bridge loops, ensure that your ZyXEL Device is not set to bridge mode while connected to both wired and wireless segments of the same LAN. Select Bridge as the Operation Mode to have the device act as a wireless bridge only. Figure 33 Wireless Settings: Bridge ZyXEL G-570S User's Guide 67 Chapter 7 Wireless Screens The following table describes the labels in this screen. Table 17 Wireless Settings: Bridge LABEL Basic Settings Operation Mode Select the operating mode from the drop-down list. The options are Access Point, Wireless Client, Bridge and AP+Repeater. DESCRIPTION Note: If you are configuring the device from a computer connected to the wireless LAN and you change the device to use bridge mode, you will lose your wireless connection when you click Apply to save your settings. You must then connect to the device through the wired network. Channel Set the operating frequency/channel depending on your particular region. Select a channel from the drop-down list box. Refer to the chapter on wizard setup for more information about channels. Select 802. 11b only to allow only IEEE 802. 11b compliant WLAN devices to associate with the device. [. . . ] is firmware-limited to channels 1 through 11. · To comply with FCC RF exposure compliance requirements, a separation distance of at least 20 cm must be maintained between the antenna of this device and all persons. ! Notices Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device has been designed for the WLAN 2. 4 GHz network throughout the EC region and Switzerland, with restrictions in France. This Class B digital apparatus complies with Canadian ICES-003. [. . . ]