Change Filr eDirectory authentication to MS Active Directory without lost

Hi,

After searching a lot, I can't find an answer at this question.

A customer wants to migrate the LDAP user source authentication eDirectory to his MS Active Directory (synced by NIM).

But he wants it to be transparent to users (user need to authenticate with the same login/password as eDirectory and found his environment like before).

Do you know if this is possible please?

Thanks

Reca