User's Manual

Table Of Contents
3/11/05 Operating System Software
OL-7426-02
Figure - Typical Multiple-Cisco Wireless LAN Controller Deployment
About the Operating System SoftwareOperating System Software
The Operating System Software controls Cisco Wireless LAN Controllers and Cisco 1000 Series light-
weight access points. It includes full Operating System Security
and Radio Resource Management
(RRM) functions.
About Operating System SecurityOperating System Security
Operating System Security bundles Layer 1, Layer 2 and Layer 3 security components into a simple,
system-wide policy manager that creates independent security policies for each of up to 16 Cisco SWAN
WLANs. (Refer to Cisco SWAN WLANs
.)
One of the barriers that made enterprises avoid deploying 802.11 networks was the inherent weakness
of 802.11 Static WEP (Wired Equivalent Privacy) encryption. Because WEP is so insecure, enterprises
have been looking for more secure solutions for business-critical traffic.
The 802.11 Static WEP weakness problem can be overcome using robust industry-standard security
solutions, such as:
802.1X dynamic keys with EAP (extensible authentication protocol).
WPA (Wi-Fi protected access) dynamic keys. The Cisco SWAN WPA implementation includes:
- TKIP + Michael (temporal key integrity protocol + message integrity code checksum)
dynamic keys, or