I need a Web Authentication certificate for my Guest Anchor controller but I think I've hit a snag. The doc:
says at step 3 of 'Generate a CSR':
"The most important information that you need to provide correctly is the Common Name. Ensure that the host name that is used to create the certificate (Common Name) matches the Domain Name System (DNS) host name entry for the virtual interface IP on the WLC and that the name actually exists in the DNS as well."
Which DNS service do we add the new host name and IP address to? It can't be internal as the guest users are segregated from the corporate network and it can't be on the Internet as the address of the virtual interface of the WLC is bound to clash with something on the Internet.
How do I get around this problem?