Cisco AIR-PCM340 Installation And Configuration Manual page 111

Chapter 6 Advanced Configuration on Mac OS X
Table 6-6
Parameter
Authentication
Transmit Power
OL-1377-01
Client Utility Advanced RF Settings Screen Parameters (continued)
Description
Defines how your client adapter attempts to authenticate to an access point.
Range: Open Authentication or Shared Authentication
Default:
Authentication
Open
Shared
If LEAP is enabled on your client adapter, Open is the only
Note
available option.
The Shared Authentication option is available only if the client
Note
adapter has been assigned a WEP key and WEP is enabled. Refer
to Chapter 4
WEP.
Defines the level at which your client adapter transmits power. This value
must not be higher than that allowed by your country's regulatory agency
(FCC in the U.S., DOC in Canada, ETSI in Europe, MKK in Japan, etc.).
When World Mode is enabled, only the transmit power levels supported by
the country of operation's regulatory agency are available (refer to
Appendix D, "Channels and Antenna Settings").
Range: 1, 5, 15, 30 mW (340 series client adapters)
1, 5, 20, 30, 50, or 100 mW (350 series client adapters)
Default: The minimum level allowed by your country's regulatory agency
Note Reducing the transmit power level conserves battery power but
decreases radio range.
Cisco Aironet Wireless LAN Adapters Installation and Configuration Guide for Mac OS
Open Authentication
Description
Allows your client adapter, regardless of its WEP
settings, to authenticate and attempt to communicate
with an access point.
Allows your client adapter to communicate only with
access points that have the same WEP keys.
The access point sends a known unencrypted
"challenge packet" to the client adapter, which
encrypts the packet and sends it back to the access
point. The access point attempts to decrypt the
encrypted packet and sends an authentication response
packet indicating the success or failure of the
decryption back to the client adapter.
for instructions on setting a WEP key and enabling
Using the Client Utility on Mac OS X
6-17