5
Site Survey:
By choosing the
Site Survey
option in any of the two modes, you can scan all the
channels in order to find all the Access Points or Ad- Hoc networks within the range of your
card. In Figure 3-4, the card can see two Access Points and one Ad-Hoc network. The list
includes information about the BSSID and SSID of the Access Point(s), the signal strength,
the channel where the Access Point(s) operates, and whether or not WEP encryption is
used. In order to update this list, press the “
Re-Scan
” button. If you want to associate with
any of the Access Point(s) listed, double click on your choice (on the BSSID field), and the
system will take you back to the
Monitor
tab showing you the parameters of the connection
newly established.
Figure 3-4.
Site Survey Option
Encryption:
By choosing this option in any of the two modes, you can set four different WEP keys
and specify which one of them to use. First, either enable or disable encryption from the
appropriate “
Encryption
” field (see
Figure 3-5
below). If you decide to use encryption, you
can choose any of the available WEP keys (1 to 4). You also have the option to select the
WEP mode (Mandatory/Optional). If you select “
Mandatory
”, then not only WEP will be
used, but also any other station needs to use WEP encryption in order to establish a
communication with your station. This requirement is in line with the IEEE 802.11b
standard. If, on the other hand, you choose “
Optional
”, then your station can communicate
with every other station regardless if they use WEP or not. Please keep in mind that the
WEP keys must be in HEX format. Finally, you have the option to select whether
Open
System
,
Shared Key, or Auto
authentication will be used. In order to take effect the
changes you wish to make, press the “
Submit
” button at the bottom of the screen.
Figure 3-5.
Encryption
