Im trying to register an old autonomous AP 1231 to the WLC but i need to use the upgrade utility 3.4 , im having some issues understanding how to do so , like for starters what is the ip file needed? how will i perform the update and registration to the WLC and AP at the same time? like aint i suppose to be connecetd back to back with the AP? and if not how will specify which AP to upgrade because it will not have any ip ?