6-3
Cisco Wireless LAN Controller Configuration Guide
OL-1926-06OL-9141-03
Chapter 6 Configuring WLANsWireless Device Access
Configuring WLANs
Note
For release 4.0.206.0 and greater , the command format is expanded to allow support for multiple
WLANs with the same SSID. To distinguish between the two WLANs, a unique profile name is
added. The definition of the profile name is added to the command as follows:
config wlan
create
wlan_id profile_name ssid.
If you do not specify an
ssid
the
profile_name
parameter is
used for both the profile name and the SSID.
Refer to the
“Configuring Multiple WLANs with
the Same SSID” section on page 6-30
for more details.
Note
When WLAN 1 is created in the configuration wizard, it is created in enabled mode; disable it
until you have finished configuring it. When you create a new WLAN using the
config wlan
create
command, it is created in disabled mode; leave it disabled until you have finished
configuring it.
•
Enter
config wlan disable
wlan-id
to disable a WLAN, before making any modifications.
Note
If the management and AP-manager interfaces are mapped to the same port and are members of
the same VLAN, you must disable the WLAN before making a port-mapping change to either
interface. If the management and AP-manager interfaces are assigned to different VLANs, you
do not need to disable the WLAN.
•
Enter
config wlan enable
wlan-id
to enable a WLAN.
•
Enter
config wlan delete
wlan-id
to delete a WLAN.
Activating WLANs
After you have completely configured your WLAN settings, enter
config wlan enable
wlan-id
to
activate the WLAN.
Configuring DHCP
WLANs can be configured to use the same or different DHCP servers or no DHCP server. Two types of
DHCP servers are available: internal and external.
Note
When using the Layer 3 LWAPP mode, you should configure the management and AP-manager
interfaces to be on the same subnet so that access points can join the controller.
Internal DHCP Server
The controllers contain an internal DHCP server. This server is typically used in branch offices that do
not already have a DHCP server. The wireless network generally contains 10 access points or fewer, with
the access points on the same IP subnet as the controller. The internal server provides DHCP addresses
to wireless clients, direct-connect access points, appliance-mode access points on the management
interface, and DHCP requests that are relayed from access points. Only lightweight access points are
supported.