Special Configuration Considerations
47
5
Click
Clear Entry
if you decide to remove a wireless client from disallowed status
with the AP.
6
Repeat step 4 for as many wireless clients as you wish.
7
Click
Security Home Page
when you have completed your entry on this page.
Enabling or Disabling Encryption
The encryption configuration requirements are as follows:
■
The encryption level (open, 40-bit, or 128-bit) must be the same on the
wireless client and the access point.
■
All Shared Keys on the wireless client must be the same as those on the access
point with which the client will associate. They must match exactly (key order
and hex-digit sequence).
■
The selected keys do not need to be the same among different clients and/or
access points.
1
Select
Configuration-->Security
.
2
Select
Enabled
for
WEP (Privacy)
to turn on encryption or
Disabled
for no
encryption.
3
If you have enabled encryption, select
40 bit key
or
128 bit key
or
40 bit key
for
WEP Algorithm
.
4
Click
Save Settings
when you have completed your entry on this page. You will
need to reset the AP using the
Special Functions
screen to have your encryption
settings take effect. Refer to
Reset AP
in the table on page 54 in the
Special
Functions
section.
Encryption Upgrade
Access Codes
If you are upgrading the wireless client from 40-bit encryption to 128-bit
encryption, you must enter an access code to perform the upgrade. Until the
access code is entered, you can only enable or disable 40-bit encryption.
An access code for upgrading to 128-bit encryption can only be done using the
ASCII user interface (Hyperterminal or similar UI). Refer to
Chapter 6, Configuring
the AP Using the ASCII Interface
for instructions.
Special Configuration
Considerations
The following configuration settings are recommended for optimal performance.
Disable Short Preamble
If you are installing the access point in a network that includes earlier versions of
3Com access points, you must disable the short RF preamble (default is enabled).
To disable short RF preamble:
1
Select
Configuration
in the left-hand frame of the Web page window.
2
Under
Configuration
, select
RF
. The
RF Setup
Web page appears
3
For the
Short RF Preamble
setting, click
Disabled
.
4
Click the
Save Settings
button to save your selection.
5
Reset the AP as described in the table on page 54 under “Special Functions” for
your settings to take effect.
