LDAP gateway to RADIUS serverf

Dear All, I have setup 2 factor authentication on a RADIUS server (OTP).The user has to authenticate using:login: adusernamepassword: ADpasswordGENERATEDPIN My issue is that some applications like VMWare supports only LDAP authentication. So i was wondering how i could use RADIUS server for authentication inside LDAP. I have found some elements like pw-radius.so, but this is clearly not fully documented. So I was wondering if one of you has ever implemented this kind of solution and how... Kind reagrds, David