Tutorials for setting up and using Public Spots / Virtualization and guest access via WLAN controller without VLAN |
In many cases, networks in a shared physical infrastructure are separated by using VLANs. However, this method assumes that the switches operated in the network are VLAN-capable and that these are configured for VLAN operations. Consequently, the administrator has to rollout the VLAN configuration for the whole network.
WLAN controllers enable you to separate the networks while minimizing the use of VLANs. The access points use a CAPWAP data tunnel to direct the payload from the WLAN clients straight to the controller, which then assigns the data to the corresponding VLANs. In this situation, VLAN configuration is only required for the controller and a single, central switch. All of the other switches in this example work without a VLAN configuration.
Example application: Overlay network
The diagram shows a sample application with the following components:
The aim of the configuration: A WLAN client that associates with an SSID is to have access to its "own" server, regardless of which access point is being used and regardless of the segment in which the client is located.
Configuring the WLAN settings
Configuring the interfaces on the WLC