On page 197 of the CCNA Wireless: Official Exam Certification Guide it lists there being 4 methods to associating a LAP to a WLC.
Method 1: Subnet Broadcast
Method 2: OTAP
Method 3: AP Priming
Method 4: DHCP with Option 43.
In this offical Cisco document about priming a LAP ( http://www.cisco.com/en/US/docs/wireless/access_point/1240/installation/guide/124h_f.pdf ) It seems to state that DHCP Option 43 and the broadcasting method are all part of LAP priming. If these 2 methods are considered AP priming why does the Cisco book consider them individual methods along with LAP priming?
I am asking this because yesterday I attempted to deploy a LAP with DHCP option 43 enabled on the router on a differrent subnet, with no success. I had to bring the LAP back to the WLC's subnet to allow the Layer 2 braodcast until the WLC found it. I'm trying to figure out if DHCP with option 43 can be used on a different subnet with a LAP that has never contacted the WLC. If so I don't know why it didn't work. I was consoled into the AP and it kept trying to resolve a Cisco.Controller name, seemed like Option 43 had no affect.
Thank in advance for any help in understanding this!
Priming doesn't mean same subnet, unless you want it to. I may have a VLAN configured on the switch that only exists in my office/cube. I'd use this VLAN to connect the AP, get it joined to the WLC, set the name, location etc. But that may be routed to the WLC vs the same subnet.
When I'm talking about priming, it's usually more for an AP that is going to a remote site, or for a MESH AP. Any thing that is going in the LAN that is local to the WLC not so much. Though IMHO, it makes sense to connect the AP on a VLAN that is locked down to only DHCP and CAPWAP to the WLC, configure all of it then have my installer hang the AP in its location.
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