Wireless/Redundant Edge Services xl Module Management and Configuration Guide WS.02.xx and greater

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Fast Layer 2 Roaming and Layer 3 Mobility
Configuring Fast Layer 2 Roaming for WPA/WPA2 with 802.1X
In other words, a Layer 3 mobility domain can include members in multiple
redundancy groups, but a redundancy group can include members in at most
one Layer 3 mobility domain.
Configuring Fast Layer 2 Roaming for
WPA/WPA2 with 802.1X
Fast roaming facilitates roaming in a WLAN that requires WPA/WPA2 with
802.1X authentication. That is, it speeds the process of a station connecting
to a new RP and possibly a new Wireless Edge Services xl Module:
■ putting necessary encryption keys in place
■ when necessary, completing 802.1X authentication
If your network includes only one Wireless Edge Services xl Module or if your
network requires roaming only between RPs adopted by the same module,
you do not need to configure fast Layer 2 roaming. The module supports it by
default.
However, in a network in which stations might need to roam between RPs
adopted by different modules, you must enable fast roaming for WLANs that
enforce WPA with 802.1X authentication. Follow these steps:
1. Select Network Setup > WLAN Setup > Configuration.
2. Select the WLAN on which you want to enable fast roaming.
3. Click the Edit button.
4. Configure the WLAN settings, making sure to select 802.1X EAP for authen-
tication and WPA/WPA2-TKIP or WPA2-AES for encryption.
For more information about configuring WLANs, see Chapter 4: Wireless
Local Area Networks (WLANs).