Cisco AIR-CB21AG-W-K9 Configuration Guide - Page 46
CCKM Fast Secure Roaming, Accessing a Profile That Was Created Previously
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Accessing a Profile That Was Created Previously Chapter 2 Configuring Wireless Profiles CCKM Fast Secure Roaming Some applications that run on a client device may require fast roaming between access points. Voice applications, for example, require it to prevent delays and gaps in conversation. CCKM fast secure roaming is enabled automatically for CB21AG and PI21AG clients using WPA/WPA2/CCKM with LEAP, EAP-FAST, EAP-TLS, PEAP (EAP-GTC), or PEAP (EAP-MSCHAP V2). However, this feature must be enabled on the access point. During normal operation, EAP-enabled clients mutually authenticate with a new access point by performing a complete EAP authentication, including communication with the main RADIUS server. However, when you configure your wireless LAN for CCKM fast secure roaming, EAP-enabled clients securely roam from one access point to another without the need to reauthenticate with the RADIUS server. Using Cisco Centralized Key Management (CCKM), an access point that is configured for wireless domain services (WDS) uses a fast rekeying technique that enables Cisco client devices to roam from one access point to another typically in under 150 milliseconds (ms). CCKM fast secure roaming ensures that there is no perceptible delay in time-sensitive applications such as wireless Voice over IP (VoIP), enterprise resource planning (ERP), or Citrix-based solutions. Accessing a Profile That Was Created Previously After you have created a profile and configured its basic settings (see the "Creating a New Profile and Configuring Basic Settings" section on page 2-3), you can change the settings by accessing the properties of the profile. To access the profile, follow these steps: Step 1 Step 2 Open the Network and Sharing Center (see the "Accessing Microsoft Vista Network and Sharing Center" section on page 2-2). In the Network and Sharing window (see Figure 2-7), click Manage wireless networks in the Tasks area. 2-12 Cisco Aironet 802.11a/b/g Wireless LAN Client Adapters (CB21AG and PI21AG) Installation and Configuration Guide for Windows Vista OL-16534-01