[Koha] Captive web portal with Koha - SIP2 + ???

Has anyone setup a captive web portal integrating authentication from Koha via SIP2? FreeRADIUS doesn't support SIP2 apparently, though a Millenium library has written a connector in Perl. Millenium connector: http://innovativeusers.org/list/archives/2011/msg04731.html Another OSS support vendor we go through uses a Perl connector sans RADIUS to authenticate against Koha via SIP2 and I could see about integrating that into freeRADIUS ... But before I re-invent the wheel I thought I'd ask here first. Thank you! Chad -- Chad Roseburg Automation Dept. North Central Regional Library