Performance: A Case Study, Continued
This tab is where all of the network configuration settings can be found minus the encryption keyword, which is found on the next tab. The mode is selectable between Compex's "Ad Hoc", 802.11 Ad Hoc, and Infrastructure. The non-802.11 Ad Hoc is used in earlier generation wireless NICs of which the SSID was not taken into consideration. For example, if you have two Ad Hoc clients configured with different SSIDs (BSS ID), they are still able to communicate. However, the 802.11 Ad Hoc takes into consideration the SSID. Two 802.11 Ad Hoc clients can communicate with one another if and only if the SSIDs are the same. At all times, 802.11 Ad Hoc should be used where possible; otherwise the security of the network security will be compromised. Compex implemented this non-802.11 Ad Hoc to support older wireless LAN cards that do not support SSID. The Infrastructure mode is of course compliant with 802.11. The SSID setting, by default "ANY", determines which network ID will be used for communication and helps multiple networks to coexist privately. The Tx Rate setting, here seen as set to 11Mbps, can be set to fully automatic, 1Mbps, 2Mbps, 5.5Mbps, 11Mbps, or auto 1 or 2Mbps. The WEP setting defines the Wired Equivalency Protocol encryption setting. This can be disabled or set to 64 or 128-bit encryption. The PS Mode is simply to implement a power saving mode. The Channel setting defines the channel within the band to be used for communication.
The third tab defines the encryption settings. This tab is what is shown when the WEP is set to 128-bit. The tab is different with the 64-bit settings enabled consisting of four "Keys", each with five binary encryption key fields.
Last, but not least, is the "About" tab. This tab prescribes the usual company and version information found in all "About" entries of programs, usually under help in program toolbars. Here is displayed the firmware revision version number towards the top of this tab and the utility version in the box below.