1-Click WLC High Availability Clustering Wizard

With the 1-Click WLC High Availability Clustering Wizard, you can use LANconfig to simultaneously configure multiple WLCs under the following conditions:

All of the WLCs have the WLC High Availability Clustering XL option enabled.
At least one WLC is fully configured. This is the case if it is already managing APs.
At least one WLC has a basic configuration (at least the name and IP address are set).
Note: In case of doubt, you should start the Basic Settings Wizard on the corresponding WLC.

Note: All WLCs in the cluster have the same rights.

In the device list, select the two WLCs that you want to configure together.
There are two ways to start the WLC Clustering Wizard:
- In the device list, drag & drop the unconfigured WLC onto the configured WLC.
- Select the two WLCs in the device list and, after a right-click, select the item Setup Wizard from the context menu.
LANconfig then displays the following message:

Start the Setup Wizard by clicking on Yes The Setup Wizard starts with the selection dialog for the multiple-devices Wizard.
Select the "1-Click WLC High Availability Clustering Wizard" and then click Next.
Select the master device, and then click Next

The master device is the preconfigured WLC. After you finish, the Setup Wizard transfers its configuration to all of the other selected WLCs.

Note: This query does not appear if you transfer the configuration to another WLC via drag & drop. In this case, the Setup Wizard automatically takes the "dragged" WLC to be the master device.
Assign a cluster name and click Device addresses.

The Setup Wizard suggests a cluster name, although you can change this if you so wish.
Enter the device addresses of all of the WLCs in the cluster.

By default, the Setup Wizard enters the devices that LANconfig is able to reach. Make any necessary changes, for example by entering devices that are accessible via VPN.

Click OK, and then click Next.
Click Finish to complete the Setup Wizard.

The Setup Wizard now loads the configuration of the master device to the selected WLCs.
The device list displays the WLCs as follows:

The Setup Wizard has configured the SCEP client on all WLCs so that they can fetch a Config Sync. LANconfig now waits until the certificates are available for all of the WLCs.

Note: Creation of the certificates may take up to one minute.
Once the certificates are available for all of the WLCs, LANconfig displays the status "OK" for these WLCs along with the cluster icon and the configured name of the cluster.

From now on, Config Sync configures the complete path Setup > WLAN management between all of the participating cluster members. Config Sync immediately synchronizes any configuration changes on any of the WLCs to all of the other WLCs in the cluster.

The master unit operates a master-CA, while all of the other WLCs operate a sub-CA of this master-CA. APs which connect to a WLC other than the master WLC will receive a valid certificate from it, if required.