Cisco WLC 2504 internal DHCP does not work properly

Hi all

I m trials with a Cisco WLC 2504 and some APs of 1832. I set up a DHCP scope on the interface of the controller with 2

a large number of different configurations, but the DHCP protocol does not work and Don t Access Point to obtain an IP address. My first question: is it possible to do DHCP for Access Points or only for wireless clients?

These are my interfaces:

Interface of the PA-Manager:

My DHCP scope:

Advanced DHCP:

I forgot something? Is there anyone using DHCP for its access points?

Thank you!


On Cisco WLC internal DHCP, you can add the option 43 to say where APs must register. In this case, they will try to resolve the DNS CISCO-CAPWAP-CONTROLLER or CISCO-LWAPP entry.

Let me explain briefly how AP-Manager works on WLC:

  1. Boots of Access Point and sends a discovery request to the management interface of the controller using the intellectual property you configured as DHCP Option 43 (as described above, it can be resolved by the DNS entry)
  2. Controller, sends it a response discovered that contains the name of the system, addresses AP-Manager, the number of access points already connected to each interface AP-Manager and the overall capacity of the controller.
  3. Joints access point controller using the less loaded interface AP Manager.

With this, every AP Manager must have a good configured interface and be connected to a different port, no LAG.

I drop a post here sometimes there is which might help:

Thank you

PS: Please do not forget to rate and score as correct answer if this answered your question

Tags: Cisco Wireless

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