The Radius part seems to be working, once I've authenticated with 802.1X and open Firefox I'm redirected to http://$url-from-radius/?switch_url=https://$ip-address-on-virtual-interface... My browser is then redirected to a new url, which is the old url concatenated with "http://$url-from-radius/?switch_url=https://$ip-address-on-virtual-interface..". After some time the redirection stops, the URL is then some 900 characters in length - looks like Firefox gives up. I've tried with Opera and Internet Explorer as well, the problems are somewhat similar.
Re: Problems with "Conditional Web Redirect " on WISM 220.127.116.11
I helped someone last week with the Splash Page, which is basically conditional web redirect without any conditions. And it worked like a charm with the cisco-avpair "url-redirect=http://www.cisco.com"
Are you actually doing this redirect for specific conditions? OR are you just trying to do a Web passthrough with 802.1x? If the latter, try the "splash page" configuration and see if it works with the your av-pair url-redirect....