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Installing a PFX File on a Cisco WLC

Cisco provide an excellent guide on how to create a CSR for a wireless LAN controller so that a certificate signed by a public CA can be installed. This is often very useful if you are using the WLC as a guest controller and want to prevent browser security messages that pop-up in a guest’s browser each time they access your guest wireless network.

The Cisco guide can be found here:

http://www.cisco.com/en/US/customer/products/ps6366/products_configuration_example09186a0080a77592.shtml

It also details how to install the chained certificate (provided by a public CA) on to the WLC. The certificate in the examples shown in the document use a ‘.pem’’ (Privacy Enhanced Mail) format file.

The method described in the (Cisco) document involves generating a CSR using Open SSL version 0.9.8 to create a certificate request which is then submitted to a public CA such as Thawte, Verisign etc.

It should be  possible to generate CSRs using other methods (other than Open SSL), but you may not end up with …