WLC 2504 Multiple Vlans Multiple SSID

[saad khan]

I have Three Locations

Unit A - Main Data Center - Controller + Access Point - IP Scheme 172.16.x.x - 38 Vlan

Unit B - Access Points Managed by Controller- IP Scheme 172.17.x.x - 38 Vlan

Unit C - Access Points Managed by Controller- IP Scheme 172.18.x.x - 38 Vlan

In the Network Topology OSPF is running. We have Multiple Vlans around 38 which we would like to Propagate via SSID but might be i am not creating more than 16. How do i achieve one user move from one Unit A to Unit B How do i get mention Vlan IP for User as it is 38 Vlan propagate on each Unit. 

UNIT A --------------UNIT B -----------------UNIT C

      |                            |                               |

172.16.X.X            172.17.X.X                172.18.X.X

      |                            |                               |

VLAN 2-38              VLAN 2-38                VLAN 2-38

      |                            |                               | 

AP-1                          AP-2                        AP-3     

   |                               |                               |

User-1                       User-2                     User-3

Need suggestion and Advice  

[zdesignstudio]

Putting wireless aside, can you route between these networks currently? 

Please rate useful posts and mark answers as correct if applicable.

[saad khan]

Yes I have reachilibilty at all units but keeping in mind i have three Subnets with Max 38 Vlans and i want to propagate all Vlans at each unit SSID's and user can get his wired Vlan IP from each SSID from his wired Vlan that's i want to achieve currently. 

waiting for your reply.

[Fazal E Rasool Khan · Accepted solution]

Hello Saad, 

As i understood your scenario, you have 2-38 or 16 vlans for each unit. To make sure at particular location specific IP addressing should be assigned to user you have to create AP groups and add AP's to specific AP group. Lets say for 1st floor you used 192.168.1.0/24 subnet and AP-group1 then all first floor AP's will be in AP group1. Additionally browse through cisco documents you will get full idea about AP groups concept. 

In order to get roaming when user move from one unit to another unit you have to configure mobility in controller. As OSPF is already running then you will be have reach-ability between controller.

Hope this information will help you. 

[saad khan]

I have 38 Vlans on each Unit with different subnets but i am creating maximum 16 interface it means 16 vlan map to each interface what if i want to create more vlans to map another interface is it possible? if possible then how?? 

Another thing i am not getting it that If i am going to Three SSID (unit-2, Unit-1 & HeadOffice).

Each SSID can Carry multiple Vlans , when a user connected on an SSID how i will get his Wired vlan IP. Do i need some another thing configuration.........

waiting for your positive reply.