Open ldap with a parent server?

[jamie <jamie@staff.newberg.k12.or.us>]

This may be a silly question but I gotta ask.

We are currently using openldap to bind auth the students at our school. We
have Novell edirectory doing bind auth for teachers and other staff members.
Is their any for openldap to look for a users record in its DB and if it
doesn't find it query the edirectory server?

This way we could have computers in the lab available to all with out
messing with the teachers accounts.

Thanks
Jamie