[Help-gnu-radius] Authenticate with LDAP

[Greg G]

In an unrelated matter, I'm looking in to using LDAP as my source to 
authenticate users via RADIUS.  As far as I can tell, I need to use some 
sort of PAM to do it.  Is there an existing module that lets me do 
this?  I've seen that there's a pam_ldap module.

I'm not sure how to actually use that (if it's what I need) or how to 
get RADIUS to use it without having to set "Auth-Type=PAM" for all my 
users.  Hmmm.  Maybe I do, at that.  I'd have to make my default and 
authentication with Scheme, right?  Although that's clear as mud...

Thanks.

-Greg G