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I have a Guest/DMZ WLC terminating EoIP tunnel. After the user is authenticated by Web Auth, only HTTP/HTTPS traffic is required to redirect to Bluecoat Proxy for filtering.
The Bluecoat Proxy and DMZ WLC wireless guest users are located in different DMZ subnets. How can I achieve the URL filtering for the Guest users?
The WLC management interface is in the same subnet as the Proxy server.
Wireless guest users should not use .pac file.
We had little success chaining Guest Web Auth with a proxy configuration.
Except using one trick:
Have your bluecoat proxy listening on port 80/443.
Additionaly it is possible to open DNS and WEB to a WPAD server before auth occurs (pre-auth ACL)
Hope it helps