Cisco 4400 Series User Manual

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Cisco Wireless LAN Controller Configuration Guide
OL-17037-01
Chapter 6 Configuring WLANsWireless Device Access
Configuring WLANs
Figure 6-18 Access Point Groups
In Figure 6-18, three configured dynamic interfaces are mapped to three different VLANs (VLAN 61,
VLAN 62, and VLAN 63). Three access point groups are defined, and each is a member of a different
VLAN, but all are members of the same SSID. A client within the wireless SSID is assigned an IP
address from the VLAN subnet on which its access point is a member. For example, any user that
associates with an access point that is a member of access point group VLAN 61 is assigned an IP
address from that subnet.
In the example in Figure 6-18, the controller internally treats roaming between access points as a Layer
3 roaming event. In this way, WLAN clients maintain their original IP addresses.

Cisco 4400 Series Specifications

General

Product Type	Wireless LAN Controller
Manageable	Yes
Management Port	Yes
Power over Ethernet (PoE)	No
Operating Temperature	32 to 104°F (0 to 40°C)
Security	WPA, WPA2, 802.1X, AES, TKIP
Power Supply	AC Power Supply
Wireless LAN Standard	IEEE 802.11a/b/g/n
Form Factor	Rack-mountable
Redundancy	Yes
Operating Humidity	10% to 90% non-condensing