I have moved my WLC to my datacentre from branch office. after movement i have updated DHCP options with the new ip address but all of my access point are not joining to WLC.Kindly check the attached cofiguration of WLC as well as LAP logs and It will be a great help if somebody can help me to relsolve this issue.
Please note that for datacenter - Branch connectivity we are using L3 MPLS line and there is no firewall between the office and I am using Ver 7 software on my WLC
From your file ‘AP error logs.txt’ it’s clear that the DHCP server provides option 43 that point to 10.204.20.4.
I also see that the controller name is AEDXBWLC01. The AP cannot guess this name so this means that it can communicate with the controller.
You do not need to configure DNS
Your DNS server is not configured with CISCO-LWAPP-CONTROLLER.localdomain. But you do not need to configure DNS since you already have a working option 43.
If you want to use DNS you should configure both CISCO-CAPWAP-CONTROLLER.localdomain and CISCO-LWAPP-CONTROLLER.localdomain, where localdomain is the access point domain name. Old software use LWAPP and new software uses CAPWAP.
What might cause the problems?
I believe that you have a certificate mismatch between the controller and the AP. In order to fix this you can manually add the AP to the AP authorization list.
In order to allow APs to join, use one of these options:
Add them to the authorization list of the WLC: use the config auth-list add mic command.
Add them as clients to the RADIUS server. The Called-Station-ID is the MAC address of the controller. If you separate the APs into groups, you can create policies to define which APs can authenticate against which Called-Station-IDs.
You can debug to see what’s happening when the AP tries to join the controller.
You can also use this debug to obtain the Ethernet address for the AP:
(Cisco Controller) >debug lwapp events enable
Mon May 22 12:00:21 2006: Received LWAPP DISCOVERY REQUEST from AP 00:0b:85:5b:fb:d0 to ff:ff:ff:ff:ff:ff on port '1'
Mon May 22 12:00:21 2006: Successful transmission of LWAPP Discovery-Response to AP 00:0b:85:5b:fb:d0 on Port 1
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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