freebsd6 authenticating against openldap 2.4?

[Dave]

Hello,
    Does anyone have their freebsd 6.x machines authenticating against ldap 
specifically openldap 2.3 or 2.4? I'd like to get all my bsd boxes to do 
this. I've read and googled and have found some items, but i'd rather hear 
about how from someone who has successfully done this, vs. making many first 
time mistakes that i'd have to go back later and correct.
    Thanks.
Dave.