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to provide mutual authentication and to negotiate an encryption algorithm and cryptographic

keys before data is transmitted. Only available for PEAP authentication type.

Cisco Features

Cisco LEAP

Cisco LEAP (Cisco Light EAP) is a server and client 802.1X authentication through a user-

supplied logon password. When a wireless access point communicates with a Cisco LEAP-

enabled RADIUS (Cisco Secure Access Control Server [ACS]), Cisco LEAP provides access

control through mutual authentication between client WiFi adapters and the wireless

networks and provides dynamic, individual user encryption keys to help protect the privacy

of transmitted data.

Cisco Rogue Access Point Security Feature

The Cisco Rogue access point feature provides security protection from an introduction of a

rogue access point that could mimic a legitimate access point on a network in order to

extract information about user credentials and authentication protocols that could

compromise security. This feature only works with Cisco's LEAP authentication. Standard

802.11 technology does not protect a network from the introduction of a rogue access point.

See

LEAP Authentication for more information.

802.11b and 802.11g Mixed Environment Protection Protocol

Some access points, for example Cisco 350 or Cisco 1200, support environments in which

not all client stations support WEP encryption; this is called Mixed-Cell Mode. When these

wireless networks operate in "optional encryption" mode, client stations that join in WEP

mode, send all messages encrypted, and stations that use standard mode send all messages

unencrypted. These access points broadcast that the network does not use encryption but

allow clients that use WEP mode. When "Mixed-Cell" is enabled in a profile, it lets you

connect to access points that are configured for "optional encryption."

CKIP

Cisco Key Integrity Protocol (CKIP) is Cisco proprietary security protocol for encryption in

802.11 media. CKIP uses the following features to improve 802.11 security in infrastructure

mode:

● Key Permutation (KP)

● Message Sequence Number

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 284 285

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Advanced Wireless Communications MINI PRO Guía de usuario Pagina 78