Can't figure out Group Authentication

[alan buxey]

Hi,
>    Any hints as to where I’d possibly begin? 

if you want to use LDAP to define./check groups, then you need to look at the
LDAP module - if you look at this module you can see how to configure it , its
fairly well self-documented and there are LDAP HOWTOs and docs on the main freeradius
document sites. 

alternatively, you could use eg PERL and the LDAP CPAN module to do the work in that instead.

alan