3Com 3CRWE20096A User Guide - Page 14

14 CHAPTER 3: CONFIGURING THE ACCESS POINT 2000 To turn off the access point DHCP server capability regardless of whether or not another DHCP server is available, click Disable and click Save. Setting Data Transmission Properties Under System Configuration, click Data Transmission Properties. The Data Transmission Properties page appears, where you can select radio channel settings and performance settings. s Clear Channel Select-To allow the access point to find a channel automatically, click the Automatically select the best channel radio button. When this option is enabled, the access point scans the primary channels to determine the traffic on those channels and chooses the channel with the least number of packets. To select a specific channel, click the Specify the channel check box and choose a channel from the Channel list. s Network Traffic Accelerator-To increase performance, click On (Enhanced performance). If you experience problems when equipment other than 3Com 11 Mbps Wireless LAN equipment is being used, click Off. s Data Preamble-To increase performance, click Short (Enhanced performance). When equipment that does not support short preamble is also being used, click Long. To achieve association, wireless device preamble lengths must match. When you are finished making your selections, click Save. Changing Encryption Settings Under Security, click Encryption. The Security Setup page appears, where you can select the type of security to be used on the access point. The access point can be configured to support one type of security at a time. You can change the settings by entering values in the fields and clicking the radio buttons. When you are finished, click Save. The following sections describe the settings. To maintain wireless association, the settings on clients and the access points they associate with must match exactly. No Security (Open No encryption is used. The network communications could be intercepted by System) unintended recipients. 40-bit Shared Key (Wi-Fi) This option encrypts the wireless transmissions to protect data, but still allows communication among compatible wireless LAN clients and access points from third-party manufacturers that are Wi-Fi certified. This type of security requires you to set up encryption in one of the following ways: s String-For use only with other 3Com 11 Mbps wireless LAN devices, an encryption string is a case-sensitive string of characters between 6 and 30 characters long. To enter the string, click Enter a string to generate shared keys. Then type any combination of letters and numbers in the space provided and click Save. s Shared keys-Hexadecimal keys are sequences of hexadecimal digits arranged into four keys. A hexadecimal digit may be a letter from A to F or a number