User's Manual Part 1

Table Of Contents
BETA DRAFT - CISCO CONFIDENTIAL
7-7
Cisco Aironet Wireless LAN Client Adapters Installation and Configuration Guide for Windows
OL-1394-03
Chapter 7 Performing Diagnostics
Viewing the Current Status of Your Client Adapter
Using Short Radio Headers Indicates whether your client adapter is actually using short radio
headers.
Value: Yes or No
Note This setting appears only for 2.4-GHz client adapters.
Note Refer to the Use Short Radio Headers parameter in Table 5-3
for information on using short radio headers.
Using Message Integrity
Check
Indicates whether your client adapter is using message integrity check
(MIC) to protect packets sent to and received from the access point.
MIC prevents bit-flip attacks on encrypted packets. During a bit-flip
attack, an intruder intercepts an encrypted message, alters it slightly,
and retransmits it, and the receiver accepts the retransmitted message
as legitimate. Client adapters using PCM/LMC/PCI card driver version
8.01 or greater and PCM/LMC/PCI card firmware version 4.25.23 or
greater (or mini PCI/PC-Cardbus card driver version 2.20 or greater and
mini PCI/PC-Cardbus card firmware version 5.0 or greater) support
MIC; however, MIC can be used only if it is also enabled on the access
point.
Note If the access point is using MIC, your client adapters driver
must support MIC; otherwise, the client will not be able to
associate.
Value: Yes or No
Server Based Authentication Indicates the configuration of the access point to which your client
adapter is associated.
Value: None, WEP Key In Use, Cell Is Secure, or LEAP
Authenticated
Server Based Authentication Description
None The access point is configured for No
Encryption.
WEP Key In Use The access point is configured for
Optional encryption.
Cell Is Secure The access point is configured for Full
Encryption.
Note If the clients current profile does
not have Allow Association To
Mixed Cells enabled, the client
can associate only to access points
that use full encryption.
LEAP Authenticated The client is using LEAP and is
authenticated to an access point that has
WEP and Network-EAP enabled.
Table 7-3 Client Adapter Status (continued)
Status Description