User's Manual

hwc_vnsconfiguration.fm
Virtual Network configuration
Configuring privacy for a VNS
A31003-W1050-U100-2-7619,
March 2008
HiPath Wireless Controller, Access Points and Convergence Software V5 R1 , C20/C2400 User Guide 213
• Input String – If you select Input String, type the secret WEP key string
used for encrypting and decrypting in the WEP Key String box. The WEP
Key box is automatically filled by the corresponding Hex code.
7. To save your changes, click Save.
6.11.2.1 Dynamic WEP privacy for an AAA VNS
The dynamic key WEP mechanism changes the key for each user and each
session.
To set up dynamic WEP privacy for a selected AAA VNS:
1. From the main menu, click Virtual Network Configuration. The Virtual
Network Configuration page is displayed.
2. In the left pane Virtual Networks list, click the AAA VNS you want to set up
dynamic WEP privacy for. The Topology tab is displayed.
3. Click the Privacy tab.
4. Select Dynamic Keys.
5. To save your changes, click Save.
6.11.2.2 Wi-Fi Protected Access (WPA v1 and WPA v2) Privacy
for an AAA VNS
The VNS Privacy feature supports Wi-Fi Protected Access (WPA v1 and WPA
v2), a security solution that adds authentication to enhanced WEP encryption and
key management.
The authentication portion of WPA for AAA is in Enterprise Mode:
• Specifies 802.1x with Extensible Authentication Protocol (EAP)
• Requires a RADIUS or other authentication server
• Uses RADIUS protocols for authentication and key distribution
• Centralizes management of user credentials
The encryption portion of WPA v1 is Temporal Key Integrity Protocol (TKIP). TKIP
includes:
• A per-packet key mixing function that shares a starting key between devices,
and then changes their encryption key for every packet (unicast key) or after
the specified re-key time interval (broadcast key) expires
• An extended WEP key length of 256-bits