protocol useed between AP and WLC

[Mahmoud]

Hi,

what is the protocol used between AP and WLC to download the firmware 

[Philip D'Ath]

I believe it is CAPWAP.  Check out this article.  Search for download.

http://www.cs.wustl.edu/~jain/cse574-10/ftp/capwap/index.html

[Mahmoud]

but you mean the CAPWAP has the functionality of ftp to download the firmware

[Prabath Godevithanage]

Hi Mahmoud, If they are joined to the controller it happens through the CAPWAP protocol. However you could use tftp/ftp protocols to transfer the image if you are running them in autonomous mode

[mitchej00]

Mahmoud,

By default an Cisco AP wants to use capwap, however depending on the model of AP you order (part#) either CAPWAP or LWAPP will determine which protocol  the access point will be use initially out of the box.

[Prabath Godevithanage]

it is indeed get downloaded through the CAPWAP tunnel as Philip mentioned with the controllers and APs now a days.just double checked with a packet capture to be sure