Question

confguring cisco wirelss LNA controller

Asked by: hyshah

hi all

i have been trying to configure cisco WLC to work with lightweight access points 1121G-E AP. i have connected AP to access port of switch and connected WLC to trunk port of the same switch. i have a DHCP server on the same VLAN as the APs and management interface of the WLC is also set in the same VLAN with a static IP from the same DHCP range. the AP's are not been detected by the controller .

i would like to setup the wireless network with a single SSID and would want all 40 APs to be on the same VLAN..

would appreciate your help veyr much ..if possible please explain the configuration of switch and basic configuration of the WLC..

thanks guys

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Asked On
2009-06-01 at 11:50:01ID24454363
Tags

cisco WLC 4404

Topic

Wireless Networking

Participating Experts
1
Points
100
Comments
1

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Answers

 

by: DonbooPosted on 2009-06-06 at 07:28:00ID: 24563128

There are a couple of things that can go wrong here.

First the controller can act in 2 mode, L2 and L3.

L2 means that the AP manager IP and the management Interface are in the same network as the APs as they need to answer the "Join broadcast" the  APs transmit.

L3 Means that they are not and only answers unicast joins.

Note: Not all APs can use L2 mode like the 1131 AP that can only use L3.

2nd. If you use L3, which I would recommend, you need one of 2 things. Either a DNS name to point to WLC management IP address or a option 43 with your DHCP scope. The DNS is the fast to make but the DHCP is most reliable.


Here is how you configure the DHCP server with option 43

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00808714fe.shtml#t1

Here is a configuration guide for wlc 4.0

http://www.cisco.com/en/US/docs/wireless/controller/4.0/configuration/guide/c40sol.html

If you tell me what version you have on your WLC I can find the correct guide for you.

Let me know if there is more I can help you with.

20120131-EE-VQP-002

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