User manual ZYXEL NWA-570N

[. . . ] NWA570N Wireless N Access Point/Bridge User's Guide Version 1. 00 10/2007 Edition 1 DEFAULT LOGIN IP Address http://192. 168. 1. 2 Password 1234 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. 6. 4. 3 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. Figure 30 Bridging Example 64 ZyXEL NWA570N User's Guide Chapter 6 Wireless Screens Be careful to avoid bridge loops when you enable bridging in the NWA570N. 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 NWA570Ns (in bridge mode) are connected to the same hub as shown next. Figure 31 Bridge Loop: Two Bridges Connected to Hub If your NWA570N (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. Figure 32 Bridge Loop: Bridge Connected to Wired LAN To prevent bridge loops, ensure that your NWA570N 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. ZyXEL NWA570N User's Guide 65 Chapter 6 Wireless Screens Figure 33 Wireless Settings: Bridge The following table describes the labels in this screen. Table 15 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 The range of radio frequencies used by IEEE 802. 11b/g wireless devices is called a channel. Select a wireless channel if interference from other nearby devices is a problem. The NWA570N and wireless devices in your network must use the same channel. Select 802. 11b/g to allow IEEE 802. 11b and IEEE 802. 11g compliant WLAN devices to associate with the device. Select 802. 11n/g to allow IEEE 802. 11n and IEEE 802. 11g compliant WLAN devices to associate with the device. Wireless Mode 66 ZyXEL NWA570N User's Guide Chapter 6 Wireless Screens Table 15 Wireless Settings: Bridge (continued) LABEL HT protect DESCRIPTION Select HT protect if you have devices on your wireless network that support IEEE 802. 1b/g standards but not the IEEE 802. 1n draft 2. 0 standard. If all devices on your wireless network support IEEE 802. 1n draft 2. 0, deselect HT protect for higher data transmission rates. Type the MAC address of the peer device(s) (the other access point(s) in your network) in a valid MAC address format, that is, six hexadecimal character pairs, for example, 12:34:56:78:9a:bc. WDS Settings Local MAC Address Remote MAC Address 1~4 Advanced Settings Radio Enable Turn on the wireless adapter to allow wireless communications between the device and other IEEE 802. 11b and IEEE 802. 11g compliant wireless devices. Turn off the wireless adapter to stop wireless communications between the device and other IEEE 802. 11b and IEEE 802. 11g compliant wireless devices. Select Yes to enable the grouping of several A-MSDU (Aggregate MAC Service Data Units) into one large A-MPDU (Aggregate MAC Protocol Data Unit). When combined with A-MSDU aggregation this function allows faster data transfer rates. Select Yes to enable the grouping of small groups of data (MAC Service Data Units, or MSDU) into one large unit of MSDUs called an Aggregate MSDU (AMSDU). Select Yes to enable RIFS (Reduced Interframe Spacing) and to increase data transfer rates. The GI refers to the interval given between data transmission from users in order to reduce interference. [. . . ] This device generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. ZyXEL NWA570N User's Guide 145 Appendix E Legal Information If this device does cause harmful interference to radio/television reception, which can be determined by turning the device off and on, the user is encouraged to try to correct the interference by one or more of the following measures: 1 Reorient or relocate the receiving antenna. 3 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 4 Consult the dealer or an experienced radio/TV technician for help. FCC Radiation Exposure Statement · This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. [. . . ]