WISPr-Redirection-URL with Cisco 3550 switch

[Alan DeKok]

Morris, Andi wrote:
> I would like to have the ability to redirect a user’s start page when
> they are first authenticated via radius if possible, or at least each
> time the user’s computer is turned on.  I do want them to be able to
> access other sites, it is just the homepage I’d like to intercept, so it
> is not really a captive portal situation.  Is this something that is
> achievable using Freeradius?

  No.  RADIUS does authentication, not routing, and not HTTP.   You need
a captive portal.

> I’ve seen lots of talk about using WISPr-Redirection-URL as an attribute
> in the Access_Accept but I’m unsure whether this is an attribute
> specific to a certain NAS.

  It's specific to wireless ISPs who implement a captive portal.

>  I’m using Cisco switches, so would I need to
> use a specific dictionary for those, or is there a generic attribute
> that will give me the result I need?

  I don't think so.

  See the Cisco documentation for how to configure filtering/firewalling
on Cisco NASes.

  In RADIUS, the server just sends *hints* to the NAS.  The NAS is
really in charge of all filtering, firewalling, etc.

  Alan DeKok.