91369 Service Manual 2-25
Setup
Selecting WEP40 or WEP128 enables the Authentication Mode setting (the selection does not change) and
displays Transmit Key with four keys below it. WEP Key1 through WEP Key4 display with corresponding
input cells.
When Security Mode is set to WEP40 or WEP128, the WEP keys and the key sizes for the WLAN APs and
wireless monitors must be identical for wireless communication to occur.
Changing Security Mode from Disabled to WEP40 or WEP128 causes a working WLAN to stop working, if
the WEP keys and key sizes do not exactly match throughout the WLAN.
If the WLAN security settings have never been configured, or if you are changing the setting from Disabled to
WEP40 or WEP128, then the four WEP key input cells are blank. If the WLAN security settings were previously
configured, then the four WEP key input cells reflect whether that WEP key was defined (see WEP Keys).
Transmit Key
These four keys indicate which of the available WEP Keys is used for wireless data transmission. By default,
none of these keys are selected. Selecting any of these four keys displays an “x“ mark within that key and
cancels the selection of any other previously selected transmit key.
WEP Keys
A WEP key is either 10 or 26 hexadecimal characters in length, depending upon whether the selected WEP
key size is 40 or 128 bits, respectively.
A WEP key can be cleared or entered. After it has been entered, the hexadecimal entry cannot be edited (it
must be re-entered). The WEP key input cells, labeled WEP Key1, WEP Key2, WEP Key3, and WEP Key4,
indicate whether that WEP key is defined for use when WEP security is selected. These input cells are blank if
a WEP key has not been entered. If you accidentally delete a WEP key that was needed, and you have not
saved this change, you can restore the WEP key setting by exiting NETWORK SETUP and then returning to
NETWORK SETUP.
A WEP key input cell reflects the characters being typed during input of a WEP key. After the WEP key is
stored, the input cell for the entered WEP keys displays one asterisk for each character in the stored WEP key
(10 asterisks if the selected key size is 40; 26 asterisks if it is 128). This indicates that the key was defined, but
the value is hidden for security purposes.
If the WEP key is non-null when a key size change occurs, then the contents of the WEP key input cells clear.
Selecting a WEP key
Selecting any of these four keys (WEP Key1, WEP Key2, WEP Key3, or WEP Key4) highlights that key,
disables any available WEP key input cell, enables the WEP key input cell to the right of the selected key,
clears the contents of the enabled input cell, and positions the cursor at the far left of that input cell.
Authentication Mode
The 802.11b WLAN cards (radios) that Ultraview SL monitors use for wireless networking support two methods
of authentication between wireless clients and the AP: Open and Shared Key. Wireless networking is only
available if the authentication modes of the AP and the WLAN card match.
Setting Security Mode to Disabled disables this key, with OPEN selected.
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