Out of my sewing box: Migration of a Lancom (unmanaged) WiFi to a central managed

Hi guys,

today I will talk a little bit about one of the summer projects here at my workplace. In the last days before I was going to vacation and had married I migrated our unmanaged WiFi with three SSIDs to a central managed system with a WiFi controller.

The situation
Before I was hired, my company bought a bigger amount of Lancom L-54ag WiFi Accesspoints and an Lancom WLC 4025+ WiFi controller. Unfortunately there was nobody in house, who whad experience with WiFi controllers and so there build ad hoc a semi-managed (by hand) WiFi network. I know, not real professional. The WLC was unused mounted in one of the network racks. Every L-54ag span three SSIDs with two VLANs and two disjunct routing instructions. Ok, this was not bad and it… works, but „fancy“ things like band- and client steering wasn’t implemented and an automatic adjustment of broadcast channel and signal strength also. As you can see – it worked, but performant is another thing.

The Way
My first intention in researching about migrating was to look, if it is possible to export the configuration of one of the L-54ag and import this configuration with some mods in the WLC 4025+ If you plan the same – no, there is absolute no way to doing this without frustration, trust me. You can only do one thing, rebuild the whole system new on the WLC. Yes this is not real convenient, but its ok and the work is faster done as you think. Primary you must one configure two bigger points and this is all – configure physical profiles on the controller and logical profiles. Logical profiles will contain every single SSID with parameters and would be associated to one physical profile. the physical profiles contains informations about client steering and some other more physical options.
After you configured the profiles, allow your WLC to accept new accesspoints and reset every accesspoint to his factory defaults. (By default all Lancom accesspoints are in managed mode and waiting for the configuration). Thats all – in theory it’s quite real simple and easy.

Do you have any questions or additions? Please feel free to comment and we can discuss this.

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