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Does the Wireless LAN Controller (WLC) work over a WAN?

Resolution

You can have the WLCs across the WAN from the Access Points (APs). Lightweight Access Point Protocol (LWAPP) works over a WAN. Use Remote Edge AP (REAP) mode. REAP allows the control of an AP by a remote controller that is connected through a WAN link. Traffic is bridged onto the LAN link locally, which avoids the need to unnecessarily send local traffic over the WAN link. This is one of the advantages of having WLCs in your wireless network.

Note: Not all lightweight APs support REAP. LAP1131AG and LAP1242AG do not support REAP at all, while 1030 AP supports REAP. But 1010 and 1020 AP do not support REAP. Before you plan to implement REAP, determine if the APs support it. Cisco IOS  Software APs that have been converted to LWAPP do not support REAP. Both LAP1131AG and LAP1242AG support HREAP. It means that HREAP is supported for LWAPP converted IOS AP's.

For more information on configuring REAP, refer to Remote-Edge AP (REAP) with Lightweight APs and Wireless LAN Controllers (WLCs) Configuration Example.

For additional information, refer to these documents:

Problem Type

Configure / Configuration issues

Release notes / product  overview / data sheet / FAQ

Technical product specification / features

Products

Access point

Wireless LAN Controllers

Topology

LWAPP network

Device Access Method

GUI Interface

Telnet

SW Features

Lightwieght Access Point Protocol (LWAPP)

Remote Edge Access Points (REAP)

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