WLC Guest portal - External DNS issue

[jlhainy]

I have an interesting behavior.  When my guest users attach to the guest network, I want them to use some external DNS source and not my organizations DNS servers.  So, I set the dhcp scope options to point to other DNS Servers.  When I do, the users don't seem to be redirected to the WLC guest portal, they get nothing and because of that, they cannot get to the Internet.

I am not sure why this is happening.  The re-direction URL is https://1.1.1.1/login.html?redirect=www.google.com?/ocid=iehp

I don't understand why pointing a guest client to an external DNS servers would cause the guest login page not to come up.

[Daniel McDavid]

The issue is likely that you are attempting to redirect an HTTPS page. See this link for more information:

http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wlan-security/115951-web-auth-wlc-guide-00.html#anc7

You didn't mention your code rev, but it seems that 8.0 is able to redirect HTTPS for guest portal.

[Daniel McDavid]

doublepost